[Parallel_libs-commits] [parallel-libs] r285111 - Initial check-in of Acxxel (StreamExecutor renamed)
Jason Henline via Parallel_libs-commits
parallel_libs-commits at lists.llvm.org
Tue Oct 25 13:18:57 PDT 2016
Author: jhen
Date: Tue Oct 25 15:18:56 2016
New Revision: 285111
URL: http://llvm.org/viewvc/llvm-project?rev=285111&view=rev
Log:
Initial check-in of Acxxel (StreamExecutor renamed)
Summary:
Acxxel is basically a simplified redesign of StreamExecutor.
Here are the major points where Acxxel differs from the current
StreamExecutor design:
* Acxxel doesn't support the kernel and kernel loader types designed for
emission by the compiler to support type-safe kernel launches. For
CUDA, kernels in Acxxel can be seamlessly launched using the standard
CUDA triple-chevron kernel launch syntax that is available with clang
and nvcc. For CUDA and OpenCL, kernel arguments can be passed in the
old-fashioned way, as one array of pointers to arguments and another
array of argument sizes. Although OpenCL doesn't get a type-safe
kernel launch method, it does still get the benefit of all the memory
management wrappers. In the future, clang may add support for
triple-chevron OpenCL kernel launchs, or some other type-safe OpenCL
kernel launch method.
* Acxxel does not depend on any other code in LLVM, so it builds
completely independently from LLVM.
The goal will be to check in Acxxel and remove StreamExecutor, or
perhaps to remove the old StreamExecutor and rename Acxxel to
StreamExecutor, so I think Acxxel should be thought of as a new version
of StreamExecutor, not as a separate project.
Reviewers: jlebar, jprice
Subscribers: beanz, mgorny, modocache, parallel_libs-commits
Differential Revision: https://reviews.llvm.org/D25701
Added:
parallel-libs/trunk/acxxel/
parallel-libs/trunk/acxxel/.clang-format
parallel-libs/trunk/acxxel/.clang-tidy
parallel-libs/trunk/acxxel/CMakeLists.txt
parallel-libs/trunk/acxxel/Doxyfile.in
parallel-libs/trunk/acxxel/LICENSE.TXT
parallel-libs/trunk/acxxel/acxxel.cpp
parallel-libs/trunk/acxxel/acxxel.h
parallel-libs/trunk/acxxel/config.h.in
parallel-libs/trunk/acxxel/cuda_acxxel.cpp
parallel-libs/trunk/acxxel/customdoxygen.css
parallel-libs/trunk/acxxel/examples/
parallel-libs/trunk/acxxel/examples/CMakeLists.txt
parallel-libs/trunk/acxxel/examples/opencl_example.cpp
parallel-libs/trunk/acxxel/examples/simple_example.cu
parallel-libs/trunk/acxxel/opencl_acxxel.cpp
parallel-libs/trunk/acxxel/span.h
parallel-libs/trunk/acxxel/status.h
parallel-libs/trunk/acxxel/tests/
parallel-libs/trunk/acxxel/tests/CMakeLists.txt
parallel-libs/trunk/acxxel/tests/acxxel_test.cpp
parallel-libs/trunk/acxxel/tests/opencl_test.cpp
parallel-libs/trunk/acxxel/tests/span_test.cpp
parallel-libs/trunk/acxxel/tests/status_test.cpp
Added: parallel-libs/trunk/acxxel/.clang-format
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/.clang-format?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/.clang-format (added)
+++ parallel-libs/trunk/acxxel/.clang-format Tue Oct 25 15:18:56 2016
@@ -0,0 +1 @@
+BasedOnStyle: LLVM
Added: parallel-libs/trunk/acxxel/.clang-tidy
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/.clang-tidy?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/.clang-tidy (added)
+++ parallel-libs/trunk/acxxel/.clang-tidy Tue Oct 25 15:18:56 2016
@@ -0,0 +1,17 @@
+Checks: '-*,clang-diagnostic-*,llvm-*,-llvm-header-guard,misc-*,-misc-unused-parameters,readability-identifier-naming'
+CheckOptions:
+ - key: readability-identifier-naming.ClassCase
+ value: CamelCase
+ - key: readability-identifier-naming.EnumCase
+ value: CamelCase
+ - key: readability-identifier-naming.FunctionCase
+ value: camelBack
+ - key: readability-identifier-naming.MemberCase
+ value: CamelCase
+ - key: readability-identifier-naming.ParameterCase
+ value: CamelCase
+ - key: readability-identifier-naming.UnionCase
+ value: CamelCase
+ - key: readability-identifier-naming.VariableCase
+ value: CamelCase
+
Added: parallel-libs/trunk/acxxel/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/CMakeLists.txt?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/CMakeLists.txt (added)
+++ parallel-libs/trunk/acxxel/CMakeLists.txt Tue Oct 25 15:18:56 2016
@@ -0,0 +1,75 @@
+cmake_minimum_required(VERSION 3.1)
+
+option(ACXXEL_ENABLE_UNIT_TESTS "enable acxxel unit tests" ON)
+option(ACXXEL_ENABLE_EXAMPLES "enable acxxel examples" OFF)
+option(ACXXEL_ENABLE_DOXYGEN "enable Doxygen for acxxel" OFF)
+option(ACXXEL_ENABLE_CUDA "enable CUDA for acxxel" ON)
+option(ACXXEL_ENABLE_OPENCL "enable OpenCL for acxxel" ON)
+
+project(acxxel)
+
+if(ACXXEL_ENABLE_CUDA)
+find_package(CUDA REQUIRED)
+include_directories(${CUDA_INCLUDE_DIRS})
+find_library(CUDA_DRIVER_LIBRARY cuda)
+if(NOT CUDA_DRIVER_LIBRARY)
+ message(FATAL_ERROR "could not find libcuda, is the CUDA driver installed on your system?")
+endif(NOT CUDA_DRIVER_LIBRARY)
+set(ACXXEL_CUDA_SOURCES cuda_acxxel.cpp)
+set(ACXXEL_CUDA_LIBRARIES ${CUDA_DRIVER_LIBRARY} ${CUDA_LIBRARIES})
+endif(ACXXEL_ENABLE_CUDA)
+
+if(ACXXEL_ENABLE_OPENCL)
+find_package(OpenCL REQUIRED)
+include_directories(${OpenCL_INCLUDE_DIRS})
+set(ACXXEL_OPENCL_SOURCES opencl_acxxel.cpp)
+set(ACXXEL_OPENCL_LIBRARIES ${OpenCL_LIBRARIES})
+endif()
+
+configure_file(config.h.in config.h)
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
+
+# Insist on C++ 11 features.
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+# Add warning flags.
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wno-missing-braces")
+
+add_library(
+ acxxel
+ acxxel.cpp
+ ${ACXXEL_CUDA_SOURCES}
+ ${ACXXEL_OPENCL_SOURCES})
+target_link_libraries(
+ acxxel
+ ${ACXXEL_CUDA_LIBRARIES}
+ ${ACXXEL_OPENCL_LIBRARIES})
+
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+
+if(ACXXEL_ENABLE_EXAMPLES)
+ add_subdirectory(examples)
+endif()
+
+if(ACXXEL_ENABLE_UNIT_TESTS)
+ enable_testing()
+ find_package(GTest REQUIRED)
+ include_directories(${GTEST_INCLUDE_DIRS})
+ find_package(Threads)
+ add_subdirectory(tests)
+endif()
+
+if(ACXXEL_ENABLE_DOXYGEN)
+ find_package(Doxygen REQUIRED)
+ configure_file(Doxyfile.in ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile @ONLY)
+ add_custom_target(
+ acxxel-doc
+ ${DOXYGEN_EXECUTABLE}
+ ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
+ WORKING_DIRECTORY
+ ${CMAKE_CURRENT_BINARY_DIR}
+ COMMENT
+ "Generating acxxel API documentation with Doxygen"
+ VERBATIM)
+endif()
Added: parallel-libs/trunk/acxxel/Doxyfile.in
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/Doxyfile.in?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/Doxyfile.in (added)
+++ parallel-libs/trunk/acxxel/Doxyfile.in Tue Oct 25 15:18:56 2016
@@ -0,0 +1,2303 @@
+# Doxyfile 1.8.6
+
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+DOXYFILE_ENCODING = UTF-8
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+# option can be useful when feeding doxygen a huge amount of source files, where
+# putting all generated files in the same directory would otherwise causes
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+# The default value is: NO.
+
+CREATE_SUBDIRS = NO
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+REPEAT_BRIEF = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator that is
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+ALWAYS_DETAILED_SEC = NO
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+INLINE_INHERITED_MEMB = NO
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+SHORT_NAMES = NO
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+# If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first
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+QT_AUTOBRIEF = NO
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+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class will
+# be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PRIVATE = NO
+
+# If the EXTRACT_PACKAGE tag is set to YES all members with package or internal
+# scope will be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PACKAGE = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file will be
+# included in the documentation.
+# The default value is: NO.
+
+EXTRACT_STATIC = NO
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) defined
+# locally in source files will be included in the documentation. If set to NO
+# only classes defined in header files are included. Does not have any effect
+# for Java sources.
+# The default value is: YES.
+
+EXTRACT_LOCAL_CLASSES = YES
+
+# This flag is only useful for Objective-C code. When set to YES local methods,
+# which are defined in the implementation section but not in the interface are
+# included in the documentation. If set to NO only methods in the interface are
+# included.
+# The default value is: NO.
+
+EXTRACT_LOCAL_METHODS = NO
+
+# If this flag is set to YES, the members of anonymous namespaces will be
+# extracted and appear in the documentation as a namespace called
+# 'anonymous_namespace{file}', where file will be replaced with the base name of
+# the file that contains the anonymous namespace. By default anonymous namespace
+# are hidden.
+# The default value is: NO.
+
+EXTRACT_ANON_NSPACES = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all
+# undocumented members inside documented classes or files. If set to NO these
+# members will be included in the various overviews, but no documentation
+# section is generated. This option has no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_MEMBERS = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all
+# undocumented classes that are normally visible in the class hierarchy. If set
+# to NO these classes will be included in the various overviews. This option has
+# no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_CLASSES = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend
+# (class|struct|union) declarations. If set to NO these declarations will be
+# included in the documentation.
+# The default value is: NO.
+
+HIDE_FRIEND_COMPOUNDS = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, doxygen will hide any
+# documentation blocks found inside the body of a function. If set to NO these
+# blocks will be appended to the function's detailed documentation block.
+# The default value is: NO.
+
+HIDE_IN_BODY_DOCS = NO
+
+# The INTERNAL_DOCS tag determines if documentation that is typed after a
+# \internal command is included. If the tag is set to NO then the documentation
+# will be excluded. Set it to YES to include the internal documentation.
+# The default value is: NO.
+
+INTERNAL_DOCS = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
+# names in lower-case letters. If set to YES upper-case letters are also
+# allowed. This is useful if you have classes or files whose names only differ
+# in case and if your file system supports case sensitive file names. Windows
+# and Mac users are advised to set this option to NO.
+# The default value is: system dependent.
+
+CASE_SENSE_NAMES = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO then doxygen will show members with
+# their full class and namespace scopes in the documentation. If set to YES the
+# scope will be hidden.
+# The default value is: NO.
+
+HIDE_SCOPE_NAMES = NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of
+# the files that are included by a file in the documentation of that file.
+# The default value is: YES.
+
+SHOW_INCLUDE_FILES = YES
+
+# If the SHOW_GROUPED_MEMB_INC tag is set to YES then Doxygen will add for each
+# grouped member an include statement to the documentation, telling the reader
+# which file to include in order to use the member.
+# The default value is: NO.
+
+SHOW_GROUPED_MEMB_INC = NO
+
+# If the FORCE_LOCAL_INCLUDES tag is set to YES then doxygen will list include
+# files with double quotes in the documentation rather than with sharp brackets.
+# The default value is: NO.
+
+FORCE_LOCAL_INCLUDES = NO
+
+# If the INLINE_INFO tag is set to YES then a tag [inline] is inserted in the
+# documentation for inline members.
+# The default value is: YES.
+
+INLINE_INFO = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES then doxygen will sort the
+# (detailed) documentation of file and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order.
+# The default value is: YES.
+
+SORT_MEMBER_DOCS = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the brief
+# descriptions of file, namespace and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order. Note that
+# this will also influence the order of the classes in the class list.
+# The default value is: NO.
+
+SORT_BRIEF_DOCS = NO
+
+# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the
+# (brief and detailed) documentation of class members so that constructors and
+# destructors are listed first. If set to NO the constructors will appear in the
+# respective orders defined by SORT_BRIEF_DOCS and SORT_MEMBER_DOCS.
+# Note: If SORT_BRIEF_DOCS is set to NO this option is ignored for sorting brief
+# member documentation.
+# Note: If SORT_MEMBER_DOCS is set to NO this option is ignored for sorting
+# detailed member documentation.
+# The default value is: NO.
+
+SORT_MEMBERS_CTORS_1ST = NO
+
+# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy
+# of group names into alphabetical order. If set to NO the group names will
+# appear in their defined order.
+# The default value is: NO.
+
+SORT_GROUP_NAMES = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by
+# fully-qualified names, including namespaces. If set to NO, the class list will
+# be sorted only by class name, not including the namespace part.
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the alphabetical
+# list.
+# The default value is: NO.
+
+SORT_BY_SCOPE_NAME = NO
+
+# If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to do proper
+# type resolution of all parameters of a function it will reject a match between
+# the prototype and the implementation of a member function even if there is
+# only one candidate or it is obvious which candidate to choose by doing a
+# simple string match. By disabling STRICT_PROTO_MATCHING doxygen will still
+# accept a match between prototype and implementation in such cases.
+# The default value is: NO.
+
+STRICT_PROTO_MATCHING = NO
+
+# The GENERATE_TODOLIST tag can be used to enable ( YES) or disable ( NO) the
+# todo list. This list is created by putting \todo commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TODOLIST = YES
+
+# The GENERATE_TESTLIST tag can be used to enable ( YES) or disable ( NO) the
+# test list. This list is created by putting \test commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TESTLIST = YES
+
+# The GENERATE_BUGLIST tag can be used to enable ( YES) or disable ( NO) the bug
+# list. This list is created by putting \bug commands in the documentation.
+# The default value is: YES.
+
+GENERATE_BUGLIST = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable ( YES) or disable ( NO)
+# the deprecated list. This list is created by putting \deprecated commands in
+# the documentation.
+# The default value is: YES.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional documentation
+# sections, marked by \if <section_label> ... \endif and \cond <section_label>
+# ... \endcond blocks.
+
+ENABLED_SECTIONS =
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the
+# initial value of a variable or macro / define can have for it to appear in the
+# documentation. If the initializer consists of more lines than specified here
+# it will be hidden. Use a value of 0 to hide initializers completely. The
+# appearance of the value of individual variables and macros / defines can be
+# controlled using \showinitializer or \hideinitializer command in the
+# documentation regardless of this setting.
+# Minimum value: 0, maximum value: 10000, default value: 30.
+
+MAX_INITIALIZER_LINES = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated at
+# the bottom of the documentation of classes and structs. If set to YES the list
+# will mention the files that were used to generate the documentation.
+# The default value is: YES.
+
+SHOW_USED_FILES = YES
+
+# Set the SHOW_FILES tag to NO to disable the generation of the Files page. This
+# will remove the Files entry from the Quick Index and from the Folder Tree View
+# (if specified).
+# The default value is: YES.
+
+SHOW_FILES = YES
+
+# Set the SHOW_NAMESPACES tag to NO to disable the generation of the Namespaces
+# page. This will remove the Namespaces entry from the Quick Index and from the
+# Folder Tree View (if specified).
+# The default value is: YES.
+
+SHOW_NAMESPACES = YES
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that
+# doxygen should invoke to get the current version for each file (typically from
+# the version control system). Doxygen will invoke the program by executing (via
+# popen()) the command command input-file, where command is the value of the
+# FILE_VERSION_FILTER tag, and input-file is the name of an input file provided
+# by doxygen. Whatever the program writes to standard output is used as the file
+# version. For an example see the documentation.
+
+FILE_VERSION_FILTER =
+
+# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed
+# by doxygen. The layout file controls the global structure of the generated
+# output files in an output format independent way. To create the layout file
+# that represents doxygen's defaults, run doxygen with the -l option. You can
+# optionally specify a file name after the option, if omitted DoxygenLayout.xml
+# will be used as the name of the layout file.
+#
+# Note that if you run doxygen from a directory containing a file called
+# DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE
+# tag is left empty.
+
+LAYOUT_FILE =
+
+# The CITE_BIB_FILES tag can be used to specify one or more bib files containing
+# the reference definitions. This must be a list of .bib files. The .bib
+# extension is automatically appended if omitted. This requires the bibtex tool
+# to be installed. See also http://en.wikipedia.org/wiki/BibTeX for more info.
+# For LaTeX the style of the bibliography can be controlled using
+# LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the
+# search path. Do not use file names with spaces, bibtex cannot handle them. See
+# also \cite for info how to create references.
+
+CITE_BIB_FILES =
+
+#---------------------------------------------------------------------------
+# Configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated to
+# standard output by doxygen. If QUIET is set to YES this implies that the
+# messages are off.
+# The default value is: NO.
+
+QUIET = YES
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated to standard error ( stderr) by doxygen. If WARNINGS is set to YES
+# this implies that the warnings are on.
+#
+# Tip: Turn warnings on while writing the documentation.
+# The default value is: YES.
+
+WARNINGS = YES
+
+# If the WARN_IF_UNDOCUMENTED tag is set to YES, then doxygen will generate
+# warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag
+# will automatically be disabled.
+# The default value is: YES.
+
+WARN_IF_UNDOCUMENTED = YES
+
+# If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some parameters
+# in a documented function, or documenting parameters that don't exist or using
+# markup commands wrongly.
+# The default value is: YES.
+
+WARN_IF_DOC_ERROR = YES
+
+# This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
+# are documented, but have no documentation for their parameters or return
+# value. If set to NO doxygen will only warn about wrong or incomplete parameter
+# documentation, but not about the absence of documentation.
+# The default value is: NO.
+
+WARN_NO_PARAMDOC = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that doxygen
+# can produce. The string should contain the $file, $line, and $text tags, which
+# will be replaced by the file and line number from which the warning originated
+# and the warning text. Optionally the format may contain $version, which will
+# be replaced by the version of the file (if it could be obtained via
+# FILE_VERSION_FILTER)
+# The default value is: $file:$line: $text.
+
+WARN_FORMAT = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning and error
+# messages should be written. If left blank the output is written to standard
+# error (stderr).
+
+WARN_LOGFILE =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag is used to specify the files and/or directories that contain
+# documented source files. You may enter file names like myfile.cpp or
+# directories like /usr/src/myproject. Separate the files or directories with
+# spaces.
+# Note: If this tag is empty the current directory is searched.
+
+INPUT = @CMAKE_CURRENT_SOURCE_DIR@
+
+# This tag can be used to specify the character encoding of the source files
+# that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
+# libiconv (or the iconv built into libc) for the transcoding. See the libiconv
+# documentation (see: http://www.gnu.org/software/libiconv) for the list of
+# possible encodings.
+# The default value is: UTF-8.
+
+INPUT_ENCODING = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank the
+# following patterns are tested:*.c, *.cc, *.cxx, *.cpp, *.c++, *.java, *.ii,
+# *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h, *.hh, *.hxx, *.hpp,
+# *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc, *.m, *.markdown,
+# *.md, *.mm, *.dox, *.py, *.f90, *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf,
+# *.qsf, *.as and *.js.
+
+FILE_PATTERNS =
+
+# The RECURSIVE tag can be used to specify whether or not subdirectories should
+# be searched for input files as well.
+# The default value is: NO.
+
+RECURSIVE = YES
+
+# The EXCLUDE tag can be used to specify files and/or directories that should be
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+#
+# Note that relative paths are relative to the directory from which doxygen is
+# run.
+
+EXCLUDE =
+
+# The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
+# directories that are symbolic links (a Unix file system feature) are excluded
+# from the input.
+# The default value is: NO.
+
+EXCLUDE_SYMLINKS = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories.
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories for example use the pattern */test/*
+
+EXCLUDE_PATTERNS = */examples/* */tools/* */unittests/* */.*
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
+# (namespaces, classes, functions, etc.) that should be excluded from the
+# output. The symbol name can be a fully qualified name, a word, or if the
+# wildcard * is used, a substring. Examples: ANamespace, AClass,
+# AClass::ANamespace, ANamespace::*Test
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories use the pattern */test/*
+
+EXCLUDE_SYMBOLS =
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or directories
+# that contain example code fragments that are included (see the \include
+# command).
+
+EXAMPLE_PATH = @CMAKE_CURRENT_SOURCE_DIR@/examples
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank all
+# files are included.
+
+EXAMPLE_PATTERNS =
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude commands
+# irrespective of the value of the RECURSIVE tag.
+# The default value is: NO.
+
+EXAMPLE_RECURSIVE = YES
+
+# The IMAGE_PATH tag can be used to specify one or more files or directories
+# that contain images that are to be included in the documentation (see the
+# \image command).
+
+IMAGE_PATH =
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command:
+#
+# <filter> <input-file>
+#
+# where <filter> is the value of the INPUT_FILTER tag, and <input-file> is the
+# name of an input file. Doxygen will then use the output that the filter
+# program writes to standard output. If FILTER_PATTERNS is specified, this tag
+# will be ignored.
+#
+# Note that the filter must not add or remove lines; it is applied before the
+# code is scanned, but not when the output code is generated. If lines are added
+# or removed, the anchors will not be placed correctly.
+
+INPUT_FILTER =
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
+# basis. Doxygen will compare the file name with each pattern and apply the
+# filter if there is a match. The filters are a list of the form: pattern=filter
+# (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how
+# filters are used. If the FILTER_PATTERNS tag is empty or if none of the
+# patterns match the file name, INPUT_FILTER is applied.
+
+FILTER_PATTERNS =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER ) will also be used to filter the input files that are used for
+# producing the source files to browse (i.e. when SOURCE_BROWSER is set to YES).
+# The default value is: NO.
+
+FILTER_SOURCE_FILES = NO
+
+# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file
+# pattern. A pattern will override the setting for FILTER_PATTERN (if any) and
+# it is also possible to disable source filtering for a specific pattern using
+# *.ext= (so without naming a filter).
+# This tag requires that the tag FILTER_SOURCE_FILES is set to YES.
+
+FILTER_SOURCE_PATTERNS =
+
+# If the USE_MDFILE_AS_MAINPAGE tag refers to the name of a markdown file that
+# is part of the input, its contents will be placed on the main page
+# (index.html). This can be useful if you have a project on for instance GitHub
+# and want to reuse the introduction page also for the doxygen output.
+
+USE_MDFILE_AS_MAINPAGE =
+
+#---------------------------------------------------------------------------
+# Configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will be
+# generated. Documented entities will be cross-referenced with these sources.
+#
+# Note: To get rid of all source code in the generated output, make sure that
+# also VERBATIM_HEADERS is set to NO.
+# The default value is: NO.
+
+SOURCE_BROWSER = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body of functions,
+# classes and enums directly into the documentation.
+# The default value is: NO.
+
+INLINE_SOURCES = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES will instruct doxygen to hide any
+# special comment blocks from generated source code fragments. Normal C, C++ and
+# Fortran comments will always remain visible.
+# The default value is: YES.
+
+STRIP_CODE_COMMENTS = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES then for each documented
+# function all documented functions referencing it will be listed.
+# The default value is: NO.
+
+REFERENCED_BY_RELATION = NO
+
+# If the REFERENCES_RELATION tag is set to YES then for each documented function
+# all documented entities called/used by that function will be listed.
+# The default value is: NO.
+
+REFERENCES_RELATION = NO
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set
+# to YES, then the hyperlinks from functions in REFERENCES_RELATION and
+# REFERENCED_BY_RELATION lists will link to the source code. Otherwise they will
+# link to the documentation.
+# The default value is: YES.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If SOURCE_TOOLTIPS is enabled (the default) then hovering a hyperlink in the
+# source code will show a tooltip with additional information such as prototype,
+# brief description and links to the definition and documentation. Since this
+# will make the HTML file larger and loading of large files a bit slower, you
+# can opt to disable this feature.
+# The default value is: YES.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+SOURCE_TOOLTIPS = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code will
+# point to the HTML generated by the htags(1) tool instead of doxygen built-in
+# source browser. The htags tool is part of GNU's global source tagging system
+# (see http://www.gnu.org/software/global/global.html). You will need version
+# 4.8.6 or higher.
+#
+# To use it do the following:
+# - Install the latest version of global
+# - Enable SOURCE_BROWSER and USE_HTAGS in the config file
+# - Make sure the INPUT points to the root of the source tree
+# - Run doxygen as normal
+#
+# Doxygen will invoke htags (and that will in turn invoke gtags), so these
+# tools must be available from the command line (i.e. in the search path).
+#
+# The result: instead of the source browser generated by doxygen, the links to
+# source code will now point to the output of htags.
+# The default value is: NO.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+USE_HTAGS = NO
+
+# If the VERBATIM_HEADERS tag is set the YES then doxygen will generate a
+# verbatim copy of the header file for each class for which an include is
+# specified. Set to NO to disable this.
+# See also: Section \class.
+# The default value is: YES.
+
+VERBATIM_HEADERS = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all
+# compounds will be generated. Enable this if the project contains a lot of
+# classes, structs, unions or interfaces.
+# The default value is: YES.
+
+ALPHABETICAL_INDEX = YES
+
+# The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in
+# which the alphabetical index list will be split.
+# Minimum value: 1, maximum value: 20, default value: 5.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+COLS_IN_ALPHA_INDEX = 1
+
+# In case all classes in a project start with a common prefix, all classes will
+# be put under the same header in the alphabetical index. The IGNORE_PREFIX tag
+# can be used to specify a prefix (or a list of prefixes) that should be ignored
+# while generating the index headers.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+IGNORE_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES doxygen will generate HTML output
+# The default value is: YES.
+
+GENERATE_HTML = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_OUTPUT = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for each
+# generated HTML page (for example: .htm, .php, .asp).
+# The default value is: .html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FILE_EXTENSION = .html
+
+# The HTML_HEADER tag can be used to specify a user-defined HTML header file for
+# each generated HTML page. If the tag is left blank doxygen will generate a
+# standard header.
+#
+# To get valid HTML the header file that includes any scripts and style sheets
+# that doxygen needs, which is dependent on the configuration options used (e.g.
+# the setting GENERATE_TREEVIEW). It is highly recommended to start with a
+# default header using
+# doxygen -w html new_header.html new_footer.html new_stylesheet.css
+# YourConfigFile
+# and then modify the file new_header.html. See also section "Doxygen usage"
+# for information on how to generate the default header that doxygen normally
+# uses.
+# Note: The header is subject to change so you typically have to regenerate the
+# default header when upgrading to a newer version of doxygen. For a description
+# of the possible markers and block names see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_HEADER =
+
+# The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each
+# generated HTML page. If the tag is left blank doxygen will generate a standard
+# footer. See HTML_HEADER for more information on how to generate a default
+# footer and what special commands can be used inside the footer. See also
+# section "Doxygen usage" for information on how to generate the default footer
+# that doxygen normally uses.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FOOTER =
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
+# sheet that is used by each HTML page. It can be used to fine-tune the look of
+# the HTML output. If left blank doxygen will generate a default style sheet.
+# See also section "Doxygen usage" for information on how to generate the style
+# sheet that doxygen normally uses.
+# Note: It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as
+# it is more robust and this tag (HTML_STYLESHEET) will in the future become
+# obsolete.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_STYLESHEET =
+
+# The HTML_EXTRA_STYLESHEET tag can be used to specify an additional user-
+# defined cascading style sheet that is included after the standard style sheets
+# created by doxygen. Using this option one can overrule certain style aspects.
+# This is preferred over using HTML_STYLESHEET since it does not replace the
+# standard style sheet and is therefor more robust against future updates.
+# Doxygen will copy the style sheet file to the output directory. For an example
+# see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_STYLESHEET = @CMAKE_CURRENT_SOURCE_DIR@/customdoxygen.css
+
+# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the HTML output directory. Note
+# that these files will be copied to the base HTML output directory. Use the
+# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
+# files. In the HTML_STYLESHEET file, use the file name only. Also note that the
+# files will be copied as-is; there are no commands or markers available.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_FILES =
+
+# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
+# will adjust the colors in the stylesheet and background images according to
+# this color. Hue is specified as an angle on a colorwheel, see
+# http://en.wikipedia.org/wiki/Hue for more information. For instance the value
+# 0 represents red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue, 300
+# purple, and 360 is red again.
+# Minimum value: 0, maximum value: 359, default value: 220.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_HUE = 220
+
+# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors
+# in the HTML output. For a value of 0 the output will use grayscales only. A
+# value of 255 will produce the most vivid colors.
+# Minimum value: 0, maximum value: 255, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_SAT = 100
+
+# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to the
+# luminance component of the colors in the HTML output. Values below 100
+# gradually make the output lighter, whereas values above 100 make the output
+# darker. The value divided by 100 is the actual gamma applied, so 80 represents
+# a gamma of 0.8, The value 220 represents a gamma of 2.2, and 100 does not
+# change the gamma.
+# Minimum value: 40, maximum value: 240, default value: 80.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_GAMMA = 80
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting this
+# to NO can help when comparing the output of multiple runs.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_TIMESTAMP = YES
+
+# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
+# documentation will contain sections that can be hidden and shown after the
+# page has loaded.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_DYNAMIC_SECTIONS = NO
+
+# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of entries
+# shown in the various tree structured indices initially; the user can expand
+# and collapse entries dynamically later on. Doxygen will expand the tree to
+# such a level that at most the specified number of entries are visible (unless
+# a fully collapsed tree already exceeds this amount). So setting the number of
+# entries 1 will produce a full collapsed tree by default. 0 is a special value
+# representing an infinite number of entries and will result in a full expanded
+# tree by default.
+# Minimum value: 0, maximum value: 9999, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_INDEX_NUM_ENTRIES = 100
+
+# If the GENERATE_DOCSET tag is set to YES, additional index files will be
+# generated that can be used as input for Apple's Xcode 3 integrated development
+# environment (see: http://developer.apple.com/tools/xcode/), introduced with
+# OSX 10.5 (Leopard). To create a documentation set, doxygen will generate a
+# Makefile in the HTML output directory. Running make will produce the docset in
+# that directory and running make install will install the docset in
+# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at
+# startup. See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html
+# for more information.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_DOCSET = NO
+
+# This tag determines the name of the docset feed. A documentation feed provides
+# an umbrella under which multiple documentation sets from a single provider
+# (such as a company or product suite) can be grouped.
+# The default value is: Doxygen generated docs.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_FEEDNAME = "Doxygen generated docs"
+
+# This tag specifies a string that should uniquely identify the documentation
+# set bundle. This should be a reverse domain-name style string, e.g.
+# com.mycompany.MyDocSet. Doxygen will append .docset to the name.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_BUNDLE_ID = org.doxygen.Project
+
+# The DOCSET_PUBLISHER_ID tag specifies a string that should uniquely identify
+# the documentation publisher. This should be a reverse domain-name style
+# string, e.g. com.mycompany.MyDocSet.documentation.
+# The default value is: org.doxygen.Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_ID = org.doxygen.Publisher
+
+# The DOCSET_PUBLISHER_NAME tag identifies the documentation publisher.
+# The default value is: Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_NAME = Publisher
+
+# If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three
+# additional HTML index files: index.hhp, index.hhc, and index.hhk. The
+# index.hhp is a project file that can be read by Microsoft's HTML Help Workshop
+# (see: http://www.microsoft.com/en-us/download/details.aspx?id=21138) on
+# Windows.
+#
+# The HTML Help Workshop contains a compiler that can convert all HTML output
+# generated by doxygen into a single compiled HTML file (.chm). Compiled HTML
+# files are now used as the Windows 98 help format, and will replace the old
+# Windows help format (.hlp) on all Windows platforms in the future. Compressed
+# HTML files also contain an index, a table of contents, and you can search for
+# words in the documentation. The HTML workshop also contains a viewer for
+# compressed HTML files.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_HTMLHELP = NO
+
+# The CHM_FILE tag can be used to specify the file name of the resulting .chm
+# file. You can add a path in front of the file if the result should not be
+# written to the html output directory.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_FILE =
+
+# The HHC_LOCATION tag can be used to specify the location (absolute path
+# including file name) of the HTML help compiler ( hhc.exe). If non-empty
+# doxygen will try to run the HTML help compiler on the generated index.hhp.
+# The file has to be specified with full path.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+HHC_LOCATION =
+
+# The GENERATE_CHI flag controls if a separate .chi index file is generated (
+# YES) or that it should be included in the master .chm file ( NO).
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+GENERATE_CHI = NO
+
+# The CHM_INDEX_ENCODING is used to encode HtmlHelp index ( hhk), content ( hhc)
+# and project file content.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_INDEX_ENCODING =
+
+# The BINARY_TOC flag controls whether a binary table of contents is generated (
+# YES) or a normal table of contents ( NO) in the .chm file.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+BINARY_TOC = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members to
+# the table of contents of the HTML help documentation and to the tree view.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+TOC_EXPAND = NO
+
+# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and
+# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated that
+# can be used as input for Qt's qhelpgenerator to generate a Qt Compressed Help
+# (.qch) of the generated HTML documentation.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_QHP = NO
+
+# If the QHG_LOCATION tag is specified, the QCH_FILE tag can be used to specify
+# the file name of the resulting .qch file. The path specified is relative to
+# the HTML output folder.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QCH_FILE =
+
+# The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help
+# Project output. For more information please see Qt Help Project / Namespace
+# (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#namespace).
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_NAMESPACE = org.doxygen.Project
+
+# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt
+# Help Project output. For more information please see Qt Help Project / Virtual
+# Folders (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#virtual-
+# folders).
+# The default value is: doc.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_VIRTUAL_FOLDER = doc
+
+# If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom
+# filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_NAME =
+
+# The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the
+# custom filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_ATTRS =
+
+# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
+# project's filter section matches. Qt Help Project / Filter Attributes (see:
+# http://qt-project.org/doc/qt-4.8/qthelpproject.html#filter-attributes).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_SECT_FILTER_ATTRS =
+
+# The QHG_LOCATION tag can be used to specify the location of Qt's
+# qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the
+# generated .qhp file.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHG_LOCATION =
+
+# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files will be
+# generated, together with the HTML files, they form an Eclipse help plugin. To
+# install this plugin and make it available under the help contents menu in
+# Eclipse, the contents of the directory containing the HTML and XML files needs
+# to be copied into the plugins directory of eclipse. The name of the directory
+# within the plugins directory should be the same as the ECLIPSE_DOC_ID value.
+# After copying Eclipse needs to be restarted before the help appears.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_ECLIPSEHELP = NO
+
+# A unique identifier for the Eclipse help plugin. When installing the plugin
+# the directory name containing the HTML and XML files should also have this
+# name. Each documentation set should have its own identifier.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_ECLIPSEHELP is set to YES.
+
+ECLIPSE_DOC_ID = org.doxygen.Project
+
+# If you want full control over the layout of the generated HTML pages it might
+# be necessary to disable the index and replace it with your own. The
+# DISABLE_INDEX tag can be used to turn on/off the condensed index (tabs) at top
+# of each HTML page. A value of NO enables the index and the value YES disables
+# it. Since the tabs in the index contain the same information as the navigation
+# tree, you can set this option to YES if you also set GENERATE_TREEVIEW to YES.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+DISABLE_INDEX = NO
+
+# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
+# structure should be generated to display hierarchical information. If the tag
+# value is set to YES, a side panel will be generated containing a tree-like
+# index structure (just like the one that is generated for HTML Help). For this
+# to work a browser that supports JavaScript, DHTML, CSS and frames is required
+# (i.e. any modern browser). Windows users are probably better off using the
+# HTML help feature. Via custom stylesheets (see HTML_EXTRA_STYLESHEET) one can
+# further fine-tune the look of the index. As an example, the default style
+# sheet generated by doxygen has an example that shows how to put an image at
+# the root of the tree instead of the PROJECT_NAME. Since the tree basically has
+# the same information as the tab index, you could consider setting
+# DISABLE_INDEX to YES when enabling this option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_TREEVIEW = YES
+
+# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that
+# doxygen will group on one line in the generated HTML documentation.
+#
+# Note that a value of 0 will completely suppress the enum values from appearing
+# in the overview section.
+# Minimum value: 0, maximum value: 20, default value: 4.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+ENUM_VALUES_PER_LINE = 4
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be used
+# to set the initial width (in pixels) of the frame in which the tree is shown.
+# Minimum value: 0, maximum value: 1500, default value: 250.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+TREEVIEW_WIDTH = 250
+
+# When the EXT_LINKS_IN_WINDOW option is set to YES doxygen will open links to
+# external symbols imported via tag files in a separate window.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+EXT_LINKS_IN_WINDOW = NO
+
+# Use this tag to change the font size of LaTeX formulas included as images in
+# the HTML documentation. When you change the font size after a successful
+# doxygen run you need to manually remove any form_*.png images from the HTML
+# output directory to force them to be regenerated.
+# Minimum value: 8, maximum value: 50, default value: 10.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_FONTSIZE = 10
+
+# Use the FORMULA_TRANPARENT tag to determine whether or not the images
+# generated for formulas are transparent PNGs. Transparent PNGs are not
+# supported properly for IE 6.0, but are supported on all modern browsers.
+#
+# Note that when changing this option you need to delete any form_*.png files in
+# the HTML output directory before the changes have effect.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_TRANSPARENT = YES
+
+# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see
+# http://www.mathjax.org) which uses client side Javascript for the rendering
+# instead of using prerendered bitmaps. Use this if you do not have LaTeX
+# installed or if you want to formulas look prettier in the HTML output. When
+# enabled you may also need to install MathJax separately and configure the path
+# to it using the MATHJAX_RELPATH option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+USE_MATHJAX = NO
+
+# When MathJax is enabled you can set the default output format to be used for
+# the MathJax output. See the MathJax site (see:
+# http://docs.mathjax.org/en/latest/output.html) for more details.
+# Possible values are: HTML-CSS (which is slower, but has the best
+# compatibility), NativeMML (i.e. MathML) and SVG.
+# The default value is: HTML-CSS.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_FORMAT = HTML-CSS
+
+# When MathJax is enabled you need to specify the location relative to the HTML
+# output directory using the MATHJAX_RELPATH option. The destination directory
+# should contain the MathJax.js script. For instance, if the mathjax directory
+# is located at the same level as the HTML output directory, then
+# MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
+# Content Delivery Network so you can quickly see the result without installing
+# MathJax. However, it is strongly recommended to install a local copy of
+# MathJax from http://www.mathjax.org before deployment.
+# The default value is: http://cdn.mathjax.org/mathjax/latest.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_RELPATH = http://cdn.mathjax.org/mathjax/latest
+
+# The MATHJAX_EXTENSIONS tag can be used to specify one or more MathJax
+# extension names that should be enabled during MathJax rendering. For example
+# MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_EXTENSIONS =
+
+# The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces
+# of code that will be used on startup of the MathJax code. See the MathJax site
+# (see: http://docs.mathjax.org/en/latest/output.html) for more details. For an
+# example see the documentation.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_CODEFILE =
+
+# When the SEARCHENGINE tag is enabled doxygen will generate a search box for
+# the HTML output. The underlying search engine uses javascript and DHTML and
+# should work on any modern browser. Note that when using HTML help
+# (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets (GENERATE_DOCSET)
+# there is already a search function so this one should typically be disabled.
+# For large projects the javascript based search engine can be slow, then
+# enabling SERVER_BASED_SEARCH may provide a better solution. It is possible to
+# search using the keyboard; to jump to the search box use <access key> + S
+# (what the <access key> is depends on the OS and browser, but it is typically
+# <CTRL>, <ALT>/<option>, or both). Inside the search box use the <cursor down
+# key> to jump into the search results window, the results can be navigated
+# using the <cursor keys>. Press <Enter> to select an item or <escape> to cancel
+# the search. The filter options can be selected when the cursor is inside the
+# search box by pressing <Shift>+<cursor down>. Also here use the <cursor keys>
+# to select a filter and <Enter> or <escape> to activate or cancel the filter
+# option.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+SEARCHENGINE = YES
+
+# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
+# implemented using a web server instead of a web client using Javascript. There
+# are two flavours of web server based searching depending on the
+# EXTERNAL_SEARCH setting. When disabled, doxygen will generate a PHP script for
+# searching and an index file used by the script. When EXTERNAL_SEARCH is
+# enabled the indexing and searching needs to be provided by external tools. See
+# the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SERVER_BASED_SEARCH = NO
+
+# When EXTERNAL_SEARCH tag is enabled doxygen will no longer generate the PHP
+# script for searching. Instead the search results are written to an XML file
+# which needs to be processed by an external indexer. Doxygen will invoke an
+# external search engine pointed to by the SEARCHENGINE_URL option to obtain the
+# search results.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/).
+#
+# See the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH = NO
+
+# The SEARCHENGINE_URL should point to a search engine hosted by a web server
+# which will return the search results when EXTERNAL_SEARCH is enabled.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/). See the section "External Indexing and
+# Searching" for details.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHENGINE_URL =
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the unindexed
+# search data is written to a file for indexing by an external tool. With the
+# SEARCHDATA_FILE tag the name of this file can be specified.
+# The default file is: searchdata.xml.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHDATA_FILE = searchdata.xml
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the
+# EXTERNAL_SEARCH_ID tag can be used as an identifier for the project. This is
+# useful in combination with EXTRA_SEARCH_MAPPINGS to search through multiple
+# projects and redirect the results back to the right project.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH_ID =
+
+# The EXTRA_SEARCH_MAPPINGS tag can be used to enable searching through doxygen
+# projects other than the one defined by this configuration file, but that are
+# all added to the same external search index. Each project needs to have a
+# unique id set via EXTERNAL_SEARCH_ID. The search mapping then maps the id of
+# to a relative location where the documentation can be found. The format is:
+# EXTRA_SEARCH_MAPPINGS = tagname1=loc1 tagname2=loc2 ...
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTRA_SEARCH_MAPPINGS =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES doxygen will generate LaTeX output.
+# The default value is: YES.
+
+GENERATE_LATEX = YES
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_OUTPUT = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked.
+#
+# Note that when enabling USE_PDFLATEX this option is only used for generating
+# bitmaps for formulas in the HTML output, but not in the Makefile that is
+# written to the output directory.
+# The default file is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_CMD_NAME = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to generate
+# index for LaTeX.
+# The default file is: makeindex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+MAKEINDEX_CMD_NAME = makeindex
+
+# If the COMPACT_LATEX tag is set to YES doxygen generates more compact LaTeX
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+COMPACT_LATEX = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used by the
+# printer.
+# Possible values are: a4 (210 x 297 mm), letter (8.5 x 11 inches), legal (8.5 x
+# 14 inches) and executive (7.25 x 10.5 inches).
+# The default value is: a4.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PAPER_TYPE = a4
+
+# The EXTRA_PACKAGES tag can be used to specify one or more LaTeX package names
+# that should be included in the LaTeX output. To get the times font for
+# instance you can specify
+# EXTRA_PACKAGES=times
+# If left blank no extra packages will be included.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+EXTRA_PACKAGES =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
+# generated LaTeX document. The header should contain everything until the first
+# chapter. If it is left blank doxygen will generate a standard header. See
+# section "Doxygen usage" for information on how to let doxygen write the
+# default header to a separate file.
+#
+# Note: Only use a user-defined header if you know what you are doing! The
+# following commands have a special meaning inside the header: $title,
+# $datetime, $date, $doxygenversion, $projectname, $projectnumber. Doxygen will
+# replace them by respectively the title of the page, the current date and time,
+# only the current date, the version number of doxygen, the project name (see
+# PROJECT_NAME), or the project number (see PROJECT_NUMBER).
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HEADER =
+
+# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
+# generated LaTeX document. The footer should contain everything after the last
+# chapter. If it is left blank doxygen will generate a standard footer.
+#
+# Note: Only use a user-defined footer if you know what you are doing!
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_FOOTER =
+
+# The LATEX_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the LATEX_OUTPUT output
+# directory. Note that the files will be copied as-is; there are no commands or
+# markers available.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EXTRA_FILES =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated is
+# prepared for conversion to PDF (using ps2pdf or pdflatex). The PDF file will
+# contain links (just like the HTML output) instead of page references. This
+# makes the output suitable for online browsing using a PDF viewer.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PDF_HYPERLINKS = YES
+
+# If the LATEX_PDFLATEX tag is set to YES, doxygen will use pdflatex to generate
+# the PDF file directly from the LaTeX files. Set this option to YES to get a
+# higher quality PDF documentation.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+USE_PDFLATEX = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \batchmode
+# command to the generated LaTeX files. This will instruct LaTeX to keep running
+# if errors occur, instead of asking the user for help. This option is also used
+# when generating formulas in HTML.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BATCHMODE = NO
+
+# If the LATEX_HIDE_INDICES tag is set to YES then doxygen will not include the
+# index chapters (such as File Index, Compound Index, etc.) in the output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HIDE_INDICES = NO
+
+# If the LATEX_SOURCE_CODE tag is set to YES then doxygen will include source
+# code with syntax highlighting in the LaTeX output.
+#
+# Note that which sources are shown also depends on other settings such as
+# SOURCE_BROWSER.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_SOURCE_CODE = NO
+
+# The LATEX_BIB_STYLE tag can be used to specify the style to use for the
+# bibliography, e.g. plainnat, or ieeetr. See
+# http://en.wikipedia.org/wiki/BibTeX and \cite for more info.
+# The default value is: plain.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BIB_STYLE = plain
+
+#---------------------------------------------------------------------------
+# Configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES doxygen will generate RTF output. The
+# RTF output is optimized for Word 97 and may not look too pretty with other RTF
+# readers/editors.
+# The default value is: NO.
+
+GENERATE_RTF = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: rtf.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_OUTPUT = rtf
+
+# If the COMPACT_RTF tag is set to YES doxygen generates more compact RTF
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+COMPACT_RTF = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated will
+# contain hyperlink fields. The RTF file will contain links (just like the HTML
+# output) instead of page references. This makes the output suitable for online
+# browsing using Word or some other Word compatible readers that support those
+# fields.
+#
+# Note: WordPad (write) and others do not support links.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_HYPERLINKS = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's config
+# file, i.e. a series of assignments. You only have to provide replacements,
+# missing definitions are set to their default value.
+#
+# See also section "Doxygen usage" for information on how to generate the
+# default style sheet that doxygen normally uses.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_STYLESHEET_FILE =
+
+# Set optional variables used in the generation of an RTF document. Syntax is
+# similar to doxygen's config file. A template extensions file can be generated
+# using doxygen -e rtf extensionFile.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_EXTENSIONS_FILE =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES doxygen will generate man pages for
+# classes and files.
+# The default value is: NO.
+
+GENERATE_MAN = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it. A directory man3 will be created inside the directory specified by
+# MAN_OUTPUT.
+# The default directory is: man.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_OUTPUT = man
+
+# The MAN_EXTENSION tag determines the extension that is added to the generated
+# man pages. In case the manual section does not start with a number, the number
+# 3 is prepended. The dot (.) at the beginning of the MAN_EXTENSION tag is
+# optional.
+# The default value is: .3.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_EXTENSION = .3
+
+# If the MAN_LINKS tag is set to YES and doxygen generates man output, then it
+# will generate one additional man file for each entity documented in the real
+# man page(s). These additional files only source the real man page, but without
+# them the man command would be unable to find the correct page.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_LINKS = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES doxygen will generate an XML file that
+# captures the structure of the code including all documentation.
+# The default value is: NO.
+
+GENERATE_XML = NO
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: xml.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_OUTPUT = xml
+
+# The XML_SCHEMA tag can be used to specify a XML schema, which can be used by a
+# validating XML parser to check the syntax of the XML files.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_SCHEMA =
+
+# The XML_DTD tag can be used to specify a XML DTD, which can be used by a
+# validating XML parser to check the syntax of the XML files.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_DTD =
+
+# If the XML_PROGRAMLISTING tag is set to YES doxygen will dump the program
+# listings (including syntax highlighting and cross-referencing information) to
+# the XML output. Note that enabling this will significantly increase the size
+# of the XML output.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_PROGRAMLISTING = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the DOCBOOK output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_DOCBOOK tag is set to YES doxygen will generate Docbook files
+# that can be used to generate PDF.
+# The default value is: NO.
+
+GENERATE_DOCBOOK = NO
+
+# The DOCBOOK_OUTPUT tag is used to specify where the Docbook pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be put in
+# front of it.
+# The default directory is: docbook.
+# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
+
+DOCBOOK_OUTPUT = docbook
+
+#---------------------------------------------------------------------------
+# Configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES doxygen will generate an AutoGen
+# Definitions (see http://autogen.sf.net) file that captures the structure of
+# the code including all documentation. Note that this feature is still
+# experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_AUTOGEN_DEF = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES doxygen will generate a Perl module
+# file that captures the structure of the code including all documentation.
+#
+# Note that this feature is still experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_PERLMOD = NO
+
+# If the PERLMOD_LATEX tag is set to YES doxygen will generate the necessary
+# Makefile rules, Perl scripts and LaTeX code to be able to generate PDF and DVI
+# output from the Perl module output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_LATEX = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be nicely
+# formatted so it can be parsed by a human reader. This is useful if you want to
+# understand what is going on. On the other hand, if this tag is set to NO the
+# size of the Perl module output will be much smaller and Perl will parse it
+# just the same.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_PRETTY = YES
+
+# The names of the make variables in the generated doxyrules.make file are
+# prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. This is useful
+# so different doxyrules.make files included by the same Makefile don't
+# overwrite each other's variables.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES doxygen will evaluate all
+# C-preprocessor directives found in the sources and include files.
+# The default value is: YES.
+
+ENABLE_PREPROCESSING = YES
+
+# If the MACRO_EXPANSION tag is set to YES doxygen will expand all macro names
+# in the source code. If set to NO only conditional compilation will be
+# performed. Macro expansion can be done in a controlled way by setting
+# EXPAND_ONLY_PREDEF to YES.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+MACRO_EXPANSION = NO
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
+# the macro expansion is limited to the macros specified with the PREDEFINED and
+# EXPAND_AS_DEFINED tags.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_ONLY_PREDEF = NO
+
+# If the SEARCH_INCLUDES tag is set to YES the includes files in the
+# INCLUDE_PATH will be searched if a #include is found.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SEARCH_INCLUDES = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that
+# contain include files that are not input files but should be processed by the
+# preprocessor.
+# This tag requires that the tag SEARCH_INCLUDES is set to YES.
+
+INCLUDE_PATH =
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
+# patterns (like *.h and *.hpp) to filter out the header-files in the
+# directories. If left blank, the patterns specified with FILE_PATTERNS will be
+# used.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+INCLUDE_FILE_PATTERNS =
+
+# The PREDEFINED tag can be used to specify one or more macro names that are
+# defined before the preprocessor is started (similar to the -D option of e.g.
+# gcc). The argument of the tag is a list of macros of the form: name or
+# name=definition (no spaces). If the definition and the "=" are omitted, "=1"
+# is assumed. To prevent a macro definition from being undefined via #undef or
+# recursively expanded use the := operator instead of the = operator.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+PREDEFINED =
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
+# tag can be used to specify a list of macro names that should be expanded. The
+# macro definition that is found in the sources will be used. Use the PREDEFINED
+# tag if you want to use a different macro definition that overrules the
+# definition found in the source code.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_AS_DEFINED =
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
+# remove all refrences to function-like macros that are alone on a line, have an
+# all uppercase name, and do not end with a semicolon. Such function macros are
+# typically used for boiler-plate code, and will confuse the parser if not
+# removed.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SKIP_FUNCTION_MACROS = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to external references
+#---------------------------------------------------------------------------
+
+# The TAGFILES tag can be used to specify one or more tag files. For each tag
+# file the location of the external documentation should be added. The format of
+# a tag file without this location is as follows:
+# TAGFILES = file1 file2 ...
+# Adding location for the tag files is done as follows:
+# TAGFILES = file1=loc1 "file2 = loc2" ...
+# where loc1 and loc2 can be relative or absolute paths or URLs. See the
+# section "Linking to external documentation" for more information about the use
+# of tag files.
+# Note: Each tag file must have an unique name (where the name does NOT include
+# the path). If a tag file is not located in the directory in which doxygen is
+# run, you must also specify the path to the tagfile here.
+
+TAGFILES =
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create a
+# tag file that is based on the input files it reads. See section "Linking to
+# external documentation" for more information about the usage of tag files.
+
+GENERATE_TAGFILE =
+
+# If the ALLEXTERNALS tag is set to YES all external class will be listed in the
+# class index. If set to NO only the inherited external classes will be listed.
+# The default value is: NO.
+
+ALLEXTERNALS = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed in
+# the modules index. If set to NO, only the current project's groups will be
+# listed.
+# The default value is: YES.
+
+EXTERNAL_GROUPS = YES
+
+# If the EXTERNAL_PAGES tag is set to YES all external pages will be listed in
+# the related pages index. If set to NO, only the current project's pages will
+# be listed.
+# The default value is: YES.
+
+EXTERNAL_PAGES = YES
+
+# The PERL_PATH should be the absolute path and name of the perl script
+# interpreter (i.e. the result of 'which perl').
+# The default file (with absolute path) is: /usr/bin/perl.
+
+PERL_PATH = /usr/bin/perl
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES doxygen will generate a class diagram
+# (in HTML and LaTeX) for classes with base or super classes. Setting the tag to
+# NO turns the diagrams off. Note that this option also works with HAVE_DOT
+# disabled, but it is recommended to install and use dot, since it yields more
+# powerful graphs.
+# The default value is: YES.
+
+CLASS_DIAGRAMS = YES
+
+# You can define message sequence charts within doxygen comments using the \msc
+# command. Doxygen will then run the mscgen tool (see:
+# http://www.mcternan.me.uk/mscgen/)) to produce the chart and insert it in the
+# documentation. The MSCGEN_PATH tag allows you to specify the directory where
+# the mscgen tool resides. If left empty the tool is assumed to be found in the
+# default search path.
+
+MSCGEN_PATH =
+
+# You can include diagrams made with dia in doxygen documentation. Doxygen will
+# then run dia to produce the diagram and insert it in the documentation. The
+# DIA_PATH tag allows you to specify the directory where the dia binary resides.
+# If left empty dia is assumed to be found in the default search path.
+
+DIA_PATH =
+
+# If set to YES, the inheritance and collaboration graphs will hide inheritance
+# and usage relations if the target is undocumented or is not a class.
+# The default value is: YES.
+
+HIDE_UNDOC_RELATIONS = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
+# available from the path. This tool is part of Graphviz (see:
+# http://www.graphviz.org/), a graph visualization toolkit from AT&T and Lucent
+# Bell Labs. The other options in this section have no effect if this option is
+# set to NO
+# The default value is: NO.
+
+HAVE_DOT = NO
+
+# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
+# to run in parallel. When set to 0 doxygen will base this on the number of
+# processors available in the system. You can set it explicitly to a value
+# larger than 0 to get control over the balance between CPU load and processing
+# speed.
+# Minimum value: 0, maximum value: 32, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_NUM_THREADS = 0
+
+# When you want a differently looking font n the dot files that doxygen
+# generates you can specify the font name using DOT_FONTNAME. You need to make
+# sure dot is able to find the font, which can be done by putting it in a
+# standard location or by setting the DOTFONTPATH environment variable or by
+# setting DOT_FONTPATH to the directory containing the font.
+# The default value is: Helvetica.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTNAME = Helvetica
+
+# The DOT_FONTSIZE tag can be used to set the size (in points) of the font of
+# dot graphs.
+# Minimum value: 4, maximum value: 24, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTSIZE = 10
+
+# By default doxygen will tell dot to use the default font as specified with
+# DOT_FONTNAME. If you specify a different font using DOT_FONTNAME you can set
+# the path where dot can find it using this tag.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTPATH =
+
+# If the CLASS_GRAPH tag is set to YES then doxygen will generate a graph for
+# each documented class showing the direct and indirect inheritance relations.
+# Setting this tag to YES will force the CLASS_DIAGRAMS tag to NO.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CLASS_GRAPH = YES
+
+# If the COLLABORATION_GRAPH tag is set to YES then doxygen will generate a
+# graph for each documented class showing the direct and indirect implementation
+# dependencies (inheritance, containment, and class references variables) of the
+# class with other documented classes.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+COLLABORATION_GRAPH = YES
+
+# If the GROUP_GRAPHS tag is set to YES then doxygen will generate a graph for
+# groups, showing the direct groups dependencies.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GROUP_GRAPHS = YES
+
+# If the UML_LOOK tag is set to YES doxygen will generate inheritance and
+# collaboration diagrams in a style similar to the OMG's Unified Modeling
+# Language.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LOOK = NO
+
+# If the UML_LOOK tag is enabled, the fields and methods are shown inside the
+# class node. If there are many fields or methods and many nodes the graph may
+# become too big to be useful. The UML_LIMIT_NUM_FIELDS threshold limits the
+# number of items for each type to make the size more manageable. Set this to 0
+# for no limit. Note that the threshold may be exceeded by 50% before the limit
+# is enforced. So when you set the threshold to 10, up to 15 fields may appear,
+# but if the number exceeds 15, the total amount of fields shown is limited to
+# 10.
+# Minimum value: 0, maximum value: 100, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LIMIT_NUM_FIELDS = 10
+
+# If the TEMPLATE_RELATIONS tag is set to YES then the inheritance and
+# collaboration graphs will show the relations between templates and their
+# instances.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+TEMPLATE_RELATIONS = NO
+
+# If the INCLUDE_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are set to
+# YES then doxygen will generate a graph for each documented file showing the
+# direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDE_GRAPH = YES
+
+# If the INCLUDED_BY_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are
+# set to YES then doxygen will generate a graph for each documented file showing
+# the direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDED_BY_GRAPH = YES
+
+# If the CALL_GRAPH tag is set to YES then doxygen will generate a call
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable call graphs for selected
+# functions only using the \callgraph command.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALL_GRAPH = NO
+
+# If the CALLER_GRAPH tag is set to YES then doxygen will generate a caller
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable caller graphs for selected
+# functions only using the \callergraph command.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALLER_GRAPH = NO
+
+# If the GRAPHICAL_HIERARCHY tag is set to YES then doxygen will graphical
+# hierarchy of all classes instead of a textual one.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GRAPHICAL_HIERARCHY = YES
+
+# If the DIRECTORY_GRAPH tag is set to YES then doxygen will show the
+# dependencies a directory has on other directories in a graphical way. The
+# dependency relations are determined by the #include relations between the
+# files in the directories.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DIRECTORY_GRAPH = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
+# generated by dot.
+# Note: If you choose svg you need to set HTML_FILE_EXTENSION to xhtml in order
+# to make the SVG files visible in IE 9+ (other browsers do not have this
+# requirement).
+# Possible values are: png, jpg, gif and svg.
+# The default value is: png.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_IMAGE_FORMAT = png
+
+# If DOT_IMAGE_FORMAT is set to svg, then this option can be set to YES to
+# enable generation of interactive SVG images that allow zooming and panning.
+#
+# Note that this requires a modern browser other than Internet Explorer. Tested
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+# Note: For IE 9+ you need to set HTML_FILE_EXTENSION to xhtml in order to make
+# the SVG files visible. Older versions of IE do not have SVG support.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INTERACTIVE_SVG = NO
+
+# The DOT_PATH tag can be used to specify the path where the dot tool can be
+# found. If left blank, it is assumed the dot tool can be found in the path.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_PATH =
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that
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+# command).
+# This tag requires that the tag HAVE_DOT is set to YES.
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+
+# The MSCFILE_DIRS tag can be used to specify one or more directories that
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+# command).
+
+MSCFILE_DIRS =
+
+# The DIAFILE_DIRS tag can be used to specify one or more directories that
+# contain dia files that are included in the documentation (see the \diafile
+# command).
+
+DIAFILE_DIRS =
+
+# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of nodes
+# that will be shown in the graph. If the number of nodes in a graph becomes
+# larger than this value, doxygen will truncate the graph, which is visualized
+# by representing a node as a red box. Note that doxygen if the number of direct
+# children of the root node in a graph is already larger than
+# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note that
+# the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
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+# generated by dot. A depth value of 3 means that only nodes reachable from the
+# root by following a path via at most 3 edges will be shown. Nodes that lay
+# further from the root node will be omitted. Note that setting this option to 1
+# or 2 may greatly reduce the computation time needed for large code bases. Also
+# note that the size of a graph can be further restricted by
+# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.
+# Minimum value: 0, maximum value: 1000, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
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+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent
+# background. This is disabled by default, because dot on Windows does not seem
+# to support this out of the box.
+#
+# Warning: Depending on the platform used, enabling this option may lead to
+# badly anti-aliased labels on the edges of a graph (i.e. they become hard to
+# read).
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_TRANSPARENT = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output
+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10) support
+# this, this feature is disabled by default.
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+
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+# explaining the meaning of the various boxes and arrows in the dot generated
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Added: parallel-libs/trunk/acxxel/LICENSE.TXT
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/LICENSE.TXT?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/LICENSE.TXT (added)
+++ parallel-libs/trunk/acxxel/LICENSE.TXT Tue Oct 25 15:18:56 2016
@@ -0,0 +1,63 @@
+==============================================================================
+LLVM Release License
+==============================================================================
+University of Illinois/NCSA
+Open Source License
+
+Copyright (c) 2007-2016 University of Illinois at Urbana-Champaign.
+All rights reserved.
+
+Developed by:
+
+ LLVM Team
+
+ University of Illinois at Urbana-Champaign
+
+ http://llvm.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal with
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimers.
+
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimers in the
+ documentation and/or other materials provided with the distribution.
+
+ * Neither the names of the LLVM Team, University of Illinois at
+ Urbana-Champaign, nor the names of its contributors may be used to
+ endorse or promote products derived from this Software without specific
+ prior written permission.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE
+SOFTWARE.
+
+==============================================================================
+The LLVM software contains code written by third parties. Such software will
+have its own individual LICENSE.TXT file in the directory in which it appears.
+This file will describe the copyrights, license, and restrictions which apply
+to that code.
+
+The disclaimer of warranty in the University of Illinois Open Source License
+applies to all code in the LLVM Distribution, and nothing in any of the
+other licenses gives permission to use the names of the LLVM Team or the
+University of Illinois to endorse or promote products derived from this
+Software.
+
+The following pieces of software have additional or alternate copyrights,
+licenses, and/or restrictions:
+
+Program Directory
+------- ---------
+<none yet>
+
Added: parallel-libs/trunk/acxxel/acxxel.cpp
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/acxxel.cpp?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/acxxel.cpp (added)
+++ parallel-libs/trunk/acxxel/acxxel.cpp Tue Oct 25 15:18:56 2016
@@ -0,0 +1,112 @@
+//===--- acxxel.cpp - Implementation details for the Acxxel API -----------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "acxxel.h"
+#include "config.h"
+
+#include <algorithm>
+#include <iostream>
+#include <string>
+
+namespace acxxel {
+
+namespace cuda {
+Expected<Platform *> getPlatform();
+} // namespace cuda
+
+namespace opencl {
+Expected<Platform *> getPlatform();
+} // namespace opencl
+
+void logWarning(const std::string &Message) {
+ std::cerr << "WARNING: " << Message << "\n";
+}
+
+Expected<Platform *> getCUDAPlatform() {
+#ifdef ACXXEL_ENABLE_CUDA
+ return cuda::getPlatform();
+#else
+ return Status("library was build without CUDA support");
+#endif
+}
+
+Expected<Platform *> getOpenCLPlatform() {
+#ifdef ACXXEL_ENABLE_OPENCL
+ return opencl::getPlatform();
+#else
+ return Status("library was build without OpenCL support");
+#endif
+}
+
+Stream::Stream(Stream &&) noexcept = default;
+Stream &Stream::operator=(Stream &&) noexcept = default;
+
+Status Stream::sync() {
+ return takeStatusOr(ThePlatform->streamSync(TheHandle.get()));
+}
+
+Status Stream::waitOnEvent(Event &Event) {
+ return takeStatusOr(ThePlatform->streamWaitOnEvent(
+ TheHandle.get(), ThePlatform->getEventHandle(Event)));
+}
+
+Stream &
+Stream::addCallback(std::function<void(Stream &, const Status &)> Callback) {
+ setStatus(ThePlatform->addStreamCallback(*this, std::move(Callback)));
+ return *this;
+}
+
+Stream &Stream::asyncKernelLaunch(const Kernel &TheKernel,
+ KernelLaunchDimensions LaunchDimensions,
+ Span<void *> Arguments,
+ Span<size_t> ArgumentSizes,
+ size_t SharedMemoryBytes) {
+ setStatus(ThePlatform->rawEnqueueKernelLaunch(
+ TheHandle.get(), TheKernel.TheHandle.get(), LaunchDimensions, Arguments,
+ ArgumentSizes, SharedMemoryBytes));
+ return *this;
+}
+
+Stream &Stream::enqueueEvent(Event &E) {
+ setStatus(ThePlatform->enqueueEvent(ThePlatform->getEventHandle(E),
+ TheHandle.get()));
+ return *this;
+}
+
+Event::Event(Event &&) noexcept = default;
+Event &Event::operator=(Event &&) noexcept = default;
+
+bool Event::isDone() { return ThePlatform->eventIsDone(TheHandle.get()); }
+
+Status Event::sync() { return ThePlatform->eventSync(TheHandle.get()); }
+
+Expected<float> Event::getSecondsSince(const Event &Previous) {
+ Expected<float> MaybeSeconds = ThePlatform->getSecondsBetweenEvents(
+ Previous.TheHandle.get(), TheHandle.get());
+ if (MaybeSeconds.isError())
+ MaybeSeconds.getError();
+ return MaybeSeconds;
+}
+
+Expected<Kernel> Program::createKernel(const std::string &Name) {
+ Expected<void *> MaybeKernelHandle =
+ ThePlatform->rawCreateKernel(TheHandle.get(), Name);
+ if (MaybeKernelHandle.isError())
+ return MaybeKernelHandle.getError();
+ return Kernel(ThePlatform, MaybeKernelHandle.getValue(),
+ ThePlatform->getKernelHandleDestructor());
+}
+
+Program::Program(Program &&) noexcept = default;
+Program &Program::operator=(Program &&That) noexcept = default;
+
+Kernel::Kernel(Kernel &&) noexcept = default;
+Kernel &Kernel::operator=(Kernel &&That) noexcept = default;
+
+} // namespace acxxel
Added: parallel-libs/trunk/acxxel/acxxel.h
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/acxxel.h?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/acxxel.h (added)
+++ parallel-libs/trunk/acxxel/acxxel.h Tue Oct 25 15:18:56 2016
@@ -0,0 +1,1400 @@
+//===--- acxxel.h - The Acxxel API ------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+/// \mainpage Welcome to Acxxel
+///
+/// \section Introduction
+///
+/// \b Acxxel is a library providing a modern C++ interface for managing
+/// accelerator devices such as GPUs. Acxxel handles operations such as
+/// allocating device memory, copying data to and from device memory, creating
+/// and managing device events, and creating and managing device streams.
+///
+/// \subsection ExampleUsage Example Usage
+///
+/// Below is some example code to show you the basics of Acxxel.
+///
+/// \snippet examples/simple_example.cu Example simple saxpy
+///
+/// The above code could be compiled with either `clang` or `nvcc`. Compare this
+/// with the standard CUDA runtime library code to perform these same
+/// operations:
+///
+/// \snippet examples/simple_example.cu Example CUDA simple saxpy
+///
+/// Notice that the CUDA runtime calls are not type safe. For example, if you
+/// change the type of the inputs from `float` to `double`, you have to remember
+/// to change the size calculation. If you forget, you will get garbage output
+/// data. In the Acxxel example, you would instead get a helpful compile-time
+/// error that wouldn't let you forget to change the types inside the function.
+///
+/// The Acxxel example also automatically uses the right sizes for memory
+/// copies, so you don't have to worry about computing the sizes yourself.
+///
+/// The CUDA runtime interface makes it easy to get the source and destination
+/// mixed up in a call to `cudaMemcpy`. If you pass the pointers in the wrong
+/// order or pass the wrong enum value for the direction parameter, you won't
+/// find out until runtime (if you remembered to check the error return value of
+/// `cudaMemcpy`). In Acxxel there is no verbose direction enum because the name
+/// of the function says which way the copy goes, and mixing up the order of
+/// source and destination is a compile-time error.
+///
+/// The CUDA runtime interface makes you clean up your device memory by calling
+/// `cudaFree` for each call to `cudaMalloc`. In Acxxel, you don't have to worry
+/// about that because the memory cleans itself up when it goes out of scope.
+///
+/// \subsection AcxxelFeatures Acxxel Features
+///
+/// Acxxel provides many nice features compared to the C-like interfaces, such
+/// as the CUDA runtime API, which are normally used for the host code in
+/// applications using accelerators.
+///
+/// \subsubsection TypeSafety Type safety
+///
+/// Most errors involving mixing up types, sources and destinations, or host and
+/// device memory result in helpful compile-time errors.
+///
+/// \subsubsection NoCopySizes No need to specify sizes for memory copies
+///
+/// When the arguments to copy functions such as acxxel::Platform::copyHToD know
+/// their sizes (e.g std::array, std::vector, and C-style arrays), there is no
+/// need to specify the amount of memory to copy; Acxxel will just copy the
+/// whole thing. Of course the copy functions also have overloads that accept an
+/// element count for those times when you don't want to copy everything.
+///
+/// \subsubsection MemoryCleanup Automatic memory cleanup
+///
+/// Device memory allocated with acxxel::Platform::mallocD is automatically
+/// freed when it goes out of scope.
+///
+/// \subsubsection NiceErrorHandling Error handling
+///
+/// Operations that would normally return values return acxxel::Expected obects
+/// in Acxxel. These `Expected` objects contain either a value or an error
+/// message explaining why the value is not present. This reminds the user to
+/// check for errors, but also allows them to opt-out easily be calling the
+/// acxxel::Expected::getValue or acxxel::Expected::takeValue methods. The
+/// `getValue` method returns a reference to the value, leaving the `Expected`
+/// instance as the value owner, whereas the `takeValue` method moves the value
+/// out of the `Expected` object and transfers ownership to the caller.
+///
+/// \subsubsection PlatformIndependence Platform independence
+///
+/// Acxxel code works not only with CUDA, but also with any other platform that
+/// can support its interface. For example, Acxxel supports OpenCL. The
+/// acxxel::getCUDAPlatform and acxxel::getOpenCLPlatform functions are provided
+/// to allow easy access to the built-in CUDA and OpenCL platforms. Other
+/// platforms can be created by implementing the acxxel::Platform interface, and
+/// instances of those classes can be created directly.
+///
+/// \subsubsection CUDAInterop Seamless interoperation with CUDA
+///
+/// Acxxel functions as a modern replacement for the standard CUDA runtime
+/// library and interoperates seamlessly with kernel calls.
+
+#ifndef ACXXEL_ACXXEL_H
+#define ACXXEL_ACXXEL_H
+
+#include "span.h"
+#include "status.h"
+
+#include <functional>
+#include <memory>
+#include <string>
+#include <type_traits>
+
+#if defined(__clang__) || defined(__GNUC__)
+#define ACXXEL_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
+#else
+#define ACXXEL_WARN_UNUSED_RESULT
+#endif
+
+/// This type is declared here to provide smooth interoperability with the CUDA
+/// triple-chevron kernel launch syntax.
+///
+/// A acxxel::Stream instance will be implicitly convertible to a CUstream_st*,
+/// which is the type expected for the stream argument in the triple-chevron
+/// CUDA kernel launch. This means that a acxxel::Stream can be passed without
+/// explicit casting as the fourth argument to a triple-chevron CUDA kernel
+/// launch.
+struct CUstream_st; // NOLINT
+
+namespace acxxel {
+
+class Event;
+class Platform;
+class Stream;
+
+template <typename T> class DeviceMemory;
+
+template <typename T> class DeviceMemorySpan;
+
+template <typename T> class AsyncHostMemory;
+
+template <typename T> class AsyncHostMemorySpan;
+
+template <typename T> class OwnedAsyncHostMemory;
+
+/// Function type used to destroy opaque handles given out by the platform.
+using HandleDestructor = void (*)(void *);
+
+/// Functor type for enqueuing host callbacks on a stream.
+using StreamCallback = std::function<void(Stream &, const Status &)>;
+
+struct KernelLaunchDimensions {
+ // Intentionally implicit
+ KernelLaunchDimensions(unsigned int BlockX = 1, unsigned int BlockY = 1,
+ unsigned int BlockZ = 1, unsigned int GridX = 1,
+ unsigned int GridY = 1, unsigned int GridZ = 1)
+ : BlockX(BlockX), BlockY(BlockY), BlockZ(BlockZ), GridX(GridX),
+ GridY(GridY), GridZ(GridZ) {}
+
+ unsigned int BlockX;
+ unsigned int BlockY;
+ unsigned int BlockZ;
+ unsigned int GridX;
+ unsigned int GridY;
+ unsigned int GridZ;
+};
+
+/// Logs a warning message.
+void logWarning(const std::string &Message);
+
+/// Gets a pointer to the standard CUDA platform.
+Expected<Platform *> getCUDAPlatform();
+
+/// Gets a pointer to the standard OpenCL platform.
+Expected<Platform *> getOpenCLPlatform();
+
+/// A function that can be executed on the device.
+///
+/// A Kernel is created from a Program by calling Program::createKernel, and a
+/// kernel is enqueued into a Stream by calling Stream::asyncKernelLaunch.
+class Kernel {
+public:
+ Kernel(const Kernel &) = delete;
+ Kernel &operator=(const Kernel &) = delete;
+ Kernel(Kernel &&) noexcept;
+ Kernel &operator=(Kernel &&That) noexcept;
+ ~Kernel() = default;
+
+private:
+ // Only a Program can make a kernel.
+ friend class Program;
+ Kernel(Platform *APlatform, void *AHandle, HandleDestructor Destructor)
+ : ThePlatform(APlatform), TheHandle(AHandle, Destructor) {}
+
+ // Let stream get raw handle for kernel launches.
+ friend class Stream;
+
+ Platform *ThePlatform;
+ std::unique_ptr<void, HandleDestructor> TheHandle;
+};
+
+/// A program loaded on a device.
+///
+/// A program can be created by calling Platform::createProgramFromSource, and a
+/// Kernel can be created from a program by running Program::createKernel.
+///
+/// A program can contain any number of kernels, and a program only needs to be
+/// loaded once in order to use all its kernels.
+class Program {
+public:
+ Program(const Program &) = delete;
+ Program &operator=(const Program &) = delete;
+ Program(Program &&) noexcept;
+ Program &operator=(Program &&That) noexcept;
+ ~Program() = default;
+
+ Expected<Kernel> createKernel(const std::string &Name);
+
+private:
+ // Only a platform can make a program.
+ friend class Platform;
+ Program(Platform *APlatform, void *AHandle, HandleDestructor Destructor)
+ : ThePlatform(APlatform), TheHandle(AHandle, Destructor) {}
+
+ Platform *ThePlatform;
+ std::unique_ptr<void, HandleDestructor> TheHandle;
+};
+
+/// A stream of computation.
+///
+/// All operations enqueued on a Stream are serialized, but operations enqueued
+/// on different Streams may run concurrently.
+///
+/// Each Platform has a notion of the currently active device on a particular
+/// thread (see Platform::getActiveDeviceForThread and
+/// Platform::setActiveDeviceForThread). Each Stream is associated with a
+/// specific, fixed device, set to the current thread's active device when the
+/// Stream is created. Whenver a thread enqueues commands onto a Stream, its
+/// active device must match the Stream's device.
+class Stream {
+public:
+ Stream(const Stream &) = delete;
+ Stream &operator=(const Stream &) = delete;
+ Stream(Stream &&) noexcept;
+ Stream &operator=(Stream &&) noexcept;
+ ~Stream() = default;
+
+ /// Gets the index of the device on which this Stream operates.
+ int getDeviceIndex() { return TheDeviceIndex; }
+
+ /// Blocks the host until the Stream is done executing all previously enqueued
+ /// work.
+ ///
+ /// Returns a Status for any errors emitted by the asynchronous work on the
+ /// Stream, or by any error in the synchronization process itself. Clears the
+ /// Status state of the stream.
+ Status sync() ACXXEL_WARN_UNUSED_RESULT;
+
+ /// Makes all future work submitted to this stream wait until the event
+ /// reports completion.
+ ///
+ /// This is useful because the event argument may be recorded on a different
+ /// stream, so this method allows for synchronization between streams without
+ /// synchronizing all streams.
+ ///
+ /// Returns a Status for any errors emitted by the asynchronous work on the
+ /// Stream, or by any error in the synchronization process itself. Clears the
+ /// Status state of the stream.
+ Status waitOnEvent(Event &Event) ACXXEL_WARN_UNUSED_RESULT;
+
+ /// Adds a host callback function to the stream.
+ ///
+ /// The callback will be called on the host after all previously enqueued work
+ /// on the stream is complete, and no work enqueued after the callback will
+ /// begin until after the callback has finished.
+ Stream &addCallback(std::function<void(Stream &, const Status &)> Callback);
+
+ /// \name Asynchronous device memory copies.
+ ///
+ /// These functions enqueue asynchronous memory copy operations into the
+ /// stream. Only async host memory is allowed for host arguments to these
+ /// functions. Async host memory can be created from normal host memory by
+ /// registering it with Platform::registerHostMem. AsyncHostMemory can also be
+ /// allocated directly by calling Platform::newAsyncHostMem.
+ ///
+ /// For all these functions, DeviceSrcTy must be convertible to
+ /// DeviceMemorySpan<const T>, DeviceDstTy must be convertible to
+ /// DeviceMemorySpan<T>, HostSrcTy must be convertible to
+ /// AsyncHostMemorySpan<const T> and HostDstTy must be convertible to
+ /// AsyncHostMemorySpan<T>. Additionally, the T types must match for the
+ /// destination and source.
+ /// \{
+
+ /// Copies from device memory to device memory.
+ template <typename DeviceSrcTy, typename DeviceDstTy>
+ Stream &asyncCopyDToD(DeviceSrcTy &&DeviceSrc, DeviceDstTy &&DeviceDst);
+
+ /// Copies from device memory to device memory with a given element count.
+ template <typename DeviceSrcTy, typename DeviceDstTy>
+ Stream &asyncCopyDToD(DeviceSrcTy &&DeviceSrc, DeviceDstTy &&DeviceDst,
+ ptrdiff_t ElementCount);
+
+ /// Copies from device memory to host memory.
+ template <typename DeviceSrcTy, typename HostDstTy>
+ Stream &asyncCopyDToH(DeviceSrcTy &&DeviceSrc, HostDstTy &&HostDst);
+
+ /// Copies from device memory to host memory with a given element count.
+ template <typename DeviceSrcTy, typename HostDstTy>
+ Stream &asyncCopyDToH(DeviceSrcTy &&DeviceSrc, HostDstTy &&HostDst,
+ ptrdiff_t ElementCount);
+
+ /// Copies from host memory to device memory.
+ template <typename HostSrcTy, typename DeviceDstTy>
+ Stream &asyncCopyHToD(HostSrcTy &&HostSrc, DeviceDstTy &&DeviceDst);
+
+ /// Copies from host memory to device memory with a given element count.
+ template <typename HostSrcTy, typename DeviceDstTy>
+ Stream &asyncCopyHToD(HostSrcTy &&HostSrc, DeviceDstTy &DeviceDst,
+ ptrdiff_t ElementCount);
+
+ /// \}
+
+ /// \name Stream-synchronous device memory copies
+ ///
+ /// These functions block the host until the copy and all previously-enqueued
+ /// work on the stream has completed.
+ ///
+ /// For all these functions, DeviceSrcTy must be convertible to
+ /// DeviceMemorySpan<const T>, DeviceDstTy must be convertible to
+ /// DeviceMemorySpan<T>, HostSrcTy must be convertible to Span<const T> and
+ /// HostDstTy must be convertible to Span<T>. Additionally, the T types must
+ /// match for the destination and source.
+ /// \{
+
+ template <typename DeviceSrcTy, typename DeviceDstTy>
+ Stream &syncCopyDToD(DeviceSrcTy &&DeviceSrc, DeviceDstTy &&DeviceDst);
+
+ template <typename DeviceSrcTy, typename DeviceDstTy>
+ Stream &syncCopyDToD(DeviceSrcTy &&DeviceSrc, DeviceDstTy &&DeviceDst,
+ ptrdiff_t ElementCount);
+
+ template <typename DeviceSrcTy, typename HostDstTy>
+ Stream &syncCopyDToH(DeviceSrcTy &&DeviceSrc, HostDstTy &&HostDst);
+
+ template <typename DeviceSrcTy, typename HostDstTy>
+ Stream &syncCopyDToH(DeviceSrcTy &&DeviceSrc, HostDstTy &&HostDst,
+ ptrdiff_t ElementCount);
+
+ template <typename HostSrcTy, typename DeviceDstTy>
+ Stream &syncCopyHToD(HostSrcTy &&HostSrc, DeviceDstTy &&DeviceDst);
+
+ template <typename HostSrcTy, typename DeviceDstTy>
+ Stream &syncCopyHToD(HostSrcTy &&HostSrc, DeviceDstTy &DeviceDst,
+ ptrdiff_t ElementCount);
+
+ /// \}
+
+ /// Enqueues an operation in the stream to set the bytes of a given device
+ /// memory region to a given value.
+ ///
+ /// DeviceDstTy must be convertible to DeviceMemorySpan<T> for non-const T.
+ template <typename DeviceDstTy>
+ Stream &asyncMemsetD(DeviceDstTy &&DeviceDst, char ByteValue);
+
+ /// Enqueues a kernel launch operation on this stream.
+ Stream &asyncKernelLaunch(const Kernel &TheKernel,
+ KernelLaunchDimensions LaunchDimensions,
+ Span<void *> Arguments, Span<size_t> ArgumentSizes,
+ size_t SharedMemoryBytes = 0);
+
+ /// Enqueues an event in the stream.
+ Stream &enqueueEvent(Event &E);
+
+ // Allows implicit conversion to (CUstream_st *). This makes triple-chevron
+ // kernel calls look nicer because you can just pass a acxxel::Stream
+ // directly.
+ operator CUstream_st *() {
+ return static_cast<CUstream_st *>(TheHandle.get());
+ }
+
+ /// Gets the current status for the Stream and clears the Stream's status.
+ Status takeStatus() ACXXEL_WARN_UNUSED_RESULT {
+ Status OldStatus = TheStatus;
+ TheStatus = Status();
+ return OldStatus;
+ }
+
+private:
+ // Only a platform can make a stream.
+ friend class Platform;
+ Stream(Platform *APlatform, int DeviceIndex, void *AHandle,
+ HandleDestructor Destructor)
+ : ThePlatform(APlatform), TheDeviceIndex(DeviceIndex),
+ TheHandle(AHandle, Destructor) {}
+
+ const Status &setStatus(const Status &S) {
+ if (S.isError() && !TheStatus.isError()) {
+ TheStatus = S;
+ }
+ return S;
+ }
+
+ Status takeStatusOr(const Status &S) {
+ if (TheStatus.isError()) {
+ Status OldStatus = TheStatus;
+ TheStatus = Status();
+ return OldStatus;
+ }
+ return S;
+ }
+
+ // The platform that created the stream.
+ Platform *ThePlatform;
+
+ // The index of the device on which the stream operates.
+ int TheDeviceIndex;
+
+ // A handle to the platform-specific handle implementation.
+ std::unique_ptr<void, HandleDestructor> TheHandle;
+ Status TheStatus;
+};
+
+/// A user-created event on a device.
+///
+/// This is useful for setting synchronization points in a Stream. The host can
+/// synchronize with a Stream without using events, but that requires all the
+/// work in the Stream to be finished in order for the host to be notified.
+/// Events provide more flexibility by allowing the host to be notified when a
+/// single Event in the Stream is finished, rather than all the work in the
+/// Stream.
+class Event {
+public:
+ Event(const Event &) = delete;
+ Event &operator=(const Event &) = delete;
+ Event(Event &&) noexcept;
+ Event &operator=(Event &&That) noexcept;
+ ~Event() = default;
+
+ /// Checks to see if the event is done running.
+ bool isDone();
+
+ /// Blocks the host until the event is done.
+ Status sync();
+
+ /// Gets the time elapsed between the previous event's execution and this
+ /// event's execution.
+ Expected<float> getSecondsSince(const Event &Previous);
+
+private:
+ // Only a platform can make an event.
+ friend class Platform;
+ Event(Platform *APlatform, void *AHandle, HandleDestructor Destructor)
+ : ThePlatform(APlatform), TheHandle(AHandle, Destructor) {}
+
+ Platform *ThePlatform;
+ std::unique_ptr<void, HandleDestructor> TheHandle;
+};
+
+/// An accelerator platform.
+///
+/// This is the base class for all platforms such as CUDA and OpenCL. It
+/// contains many virtual methods that must be overridden by each platform
+/// implementation.
+///
+/// It also has some template wrapper functions that take care of type checking
+/// and then forward their arguments on to raw virtual functions that are
+/// implemented by each specific platform.
+class Platform {
+public:
+ virtual ~Platform(){};
+
+ /// Gets the number of devices for this platform in this system.
+ virtual Expected<int> getDeviceCount() = 0;
+
+ /// Sets the active device for this platform in this thread.
+ virtual Status setActiveDeviceForThread(int DeviceIndex) = 0;
+
+ /// Gets the currently active device for this platform in this thread.
+ virtual int getActiveDeviceForThread() = 0;
+
+ /// Creates a stream for the platform.
+ ///
+ /// The created Stream is associated with the active device for this thread.
+ virtual Expected<Stream> createStream() = 0;
+
+ /// Creates an event for the platform.
+ ///
+ /// The created Event is associated with the active device for this thread.
+ virtual Expected<Event> createEvent() = 0;
+
+ /// Allocates owned device memory.
+ ///
+ /// \warning This function only allocates space in device memory, it does not
+ /// call the constructor of T.
+ template <typename T>
+ Expected<DeviceMemory<T>> mallocD(ptrdiff_t ElementCount) {
+ Expected<void *> MaybePointer = rawMallocD(ElementCount * sizeof(T));
+ if (MaybePointer.isError())
+ return MaybePointer.getError();
+ return DeviceMemory<T>(this, MaybePointer.getValue(), ElementCount,
+ this->getDeviceMemoryHandleDestructor());
+ }
+
+ /// Creates a DeviceMemorySpan for a device symbol.
+ ///
+ /// This function is present to support __device__ variables in CUDA. Given a
+ /// pointer to a __device__ variable, this function returns a DeviceMemorySpan
+ /// referencing the device memory that stores that __device__ variable.
+ template <typename ElementType>
+ Expected<DeviceMemorySpan<ElementType>> getSymbolMemory(ElementType *Symbol) {
+ Expected<void *> MaybeAddress = rawGetDeviceSymbolAddress(Symbol);
+ if (MaybeAddress.isError())
+ return MaybeAddress.getError();
+ ElementType *Address = static_cast<ElementType *>(MaybeAddress.getValue());
+ Expected<ptrdiff_t> MaybeSize = rawGetDeviceSymbolSize(Symbol);
+ if (MaybeSize.isError())
+ return MaybeSize.getError();
+ ptrdiff_t Size = MaybeSize.getValue();
+ return DeviceMemorySpan<ElementType>(this, Address,
+ Size / sizeof(ElementType), 0);
+ }
+
+ /// \name Host memory registration functions.
+ /// \{
+
+ template <typename T>
+ Expected<AsyncHostMemory<const T>> registerHostMem(Span<const T> Memory) {
+ Status S = rawRegisterHostMem(Memory.data(), Memory.size() * sizeof(T));
+ if (S.isError())
+ return S;
+ return AsyncHostMemory<const T>(
+ Memory.data(), Memory.size(),
+ this->getUnregisterHostMemoryHandleDestructor());
+ }
+
+ template <typename T>
+ Expected<AsyncHostMemory<T>> registerHostMem(Span<T> Memory) {
+ Status S = rawRegisterHostMem(Memory.data(), Memory.size() * sizeof(T));
+ if (S.isError())
+ return S;
+ return AsyncHostMemory<T>(Memory.data(), Memory.size(),
+ this->getUnregisterHostMemoryHandleDestructor());
+ }
+
+ template <typename T, size_t N>
+ Expected<AsyncHostMemory<T>> registerHostMem(T (&Array)[N]) {
+ Span<T> Span(Array);
+ Status S = rawRegisterHostMem(Span.data(), Span.size() * sizeof(T));
+ if (S.isError())
+ return S;
+ return AsyncHostMemory<T>(Span.data(), Span.size(),
+ this->getUnregisterHostMemoryHandleDestructor());
+ }
+
+ /// Registers memory stored in a container with a data() member function and
+ /// which can be converted to a Span<T*>.
+ template <typename Container>
+ auto registerHostMem(Container &Cont) -> Expected<AsyncHostMemory<
+ typename std::remove_reference<decltype(*Cont.data())>::type>> {
+ using ValueType =
+ typename std::remove_reference<decltype(*Cont.data())>::type;
+ Span<ValueType> Span(Cont);
+ Status S = rawRegisterHostMem(Span.data(), Span.size() * sizeof(ValueType));
+ if (S.isError())
+ return S;
+ return AsyncHostMemory<ValueType>(
+ Span.data(), Span.size(),
+ this->getUnregisterHostMemoryHandleDestructor());
+ }
+
+ /// Allocates an owned, registered array of objects on the host.
+ ///
+ /// Default constructs each element in the resulting array.
+ template <typename T>
+ Expected<OwnedAsyncHostMemory<T>> newAsyncHostMem(ptrdiff_t ElementCount) {
+ Expected<void *> MaybeMemory =
+ rawMallocRegisteredH(ElementCount * sizeof(T));
+ if (MaybeMemory.isError())
+ return MaybeMemory.getError();
+ T *Memory = static_cast<T *>(MaybeMemory.getValue());
+ for (ptrdiff_t I = 0; I < ElementCount; ++I)
+ new (Memory + I) T;
+ return OwnedAsyncHostMemory<T>(Memory, ElementCount,
+ this->getFreeHostMemoryHandleDestructor());
+ }
+
+ /// \}
+
+ virtual Expected<Program>
+ createProgramFromSource(Span<const char> Source) = 0;
+
+protected:
+ friend class Stream;
+ friend class Event;
+ friend class Program;
+ template <typename T> friend class DeviceMemorySpan;
+
+ void *getStreamHandle(Stream &Stream) { return Stream.TheHandle.get(); }
+ void *getEventHandle(Event &Event) { return Event.TheHandle.get(); }
+
+ // Pass along access to Stream constructor to subclasses.
+ Stream constructStream(Platform *APlatform, void *AHandle,
+ HandleDestructor Destructor) {
+ return Stream(APlatform, getActiveDeviceForThread(), AHandle, Destructor);
+ }
+
+ // Pass along access to Event constructor to subclasses.
+ Event constructEvent(Platform *APlatform, void *AHandle,
+ HandleDestructor Destructor) {
+ return Event(APlatform, AHandle, Destructor);
+ }
+
+ // Pass along access to Program constructor to subclasses.
+ Program constructProgram(Platform *APlatform, void *AHandle,
+ HandleDestructor Destructor) {
+ return Program(APlatform, AHandle, Destructor);
+ }
+
+ virtual Status streamSync(void *Stream) = 0;
+ virtual Status streamWaitOnEvent(void *Stream, void *Event) = 0;
+
+ virtual Status enqueueEvent(void *Event, void *Stream) = 0;
+ virtual bool eventIsDone(void *Event) = 0;
+ virtual Status eventSync(void *Event) = 0;
+ virtual Expected<float> getSecondsBetweenEvents(void *StartEvent,
+ void *EndEvent) = 0;
+
+ virtual Expected<void *> rawMallocD(ptrdiff_t ByteCount) = 0;
+ virtual HandleDestructor getDeviceMemoryHandleDestructor() = 0;
+ virtual void *getDeviceMemorySpanHandle(void *BaseHandle, size_t ByteSize,
+ size_t ByteOffset) = 0;
+ virtual void rawDestroyDeviceMemorySpanHandle(void *Handle) = 0;
+
+ virtual Expected<void *> rawGetDeviceSymbolAddress(const void *Symbol) = 0;
+ virtual Expected<ptrdiff_t> rawGetDeviceSymbolSize(const void *Symbol) = 0;
+
+ virtual Status rawCopyDToD(const void *DeviceSrc,
+ ptrdiff_t DeviceSrcByteOffset, void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount) = 0;
+ virtual Status rawCopyDToH(const void *DeviceSrc,
+ ptrdiff_t DeviceSrcByteOffset, void *HostDst,
+ ptrdiff_t ByteCount) = 0;
+ virtual Status rawCopyHToD(const void *HostSrc, void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount) = 0;
+
+ virtual Status rawMemsetD(void *DeviceDst, ptrdiff_t ByteOffset,
+ ptrdiff_t ByteCount, char ByteValue) = 0;
+
+ virtual Status rawRegisterHostMem(const void *Memory,
+ ptrdiff_t ByteCount) = 0;
+ virtual HandleDestructor getUnregisterHostMemoryHandleDestructor() = 0;
+
+ virtual Expected<void *> rawMallocRegisteredH(ptrdiff_t ByteCount) = 0;
+ virtual HandleDestructor getFreeHostMemoryHandleDestructor() = 0;
+
+ virtual Status asyncCopyDToD(const void *DeviceSrc,
+ ptrdiff_t DeviceSrcByteOffset, void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount, void *Stream) = 0;
+ virtual Status asyncCopyDToH(const void *DeviceSrc,
+ ptrdiff_t DeviceSrcByteOffset, void *HostDst,
+ ptrdiff_t ByteCount, void *Stream) = 0;
+ virtual Status asyncCopyHToD(const void *HostSrc, void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount, void *Stream) = 0;
+
+ virtual Status asyncMemsetD(void *DeviceDst, ptrdiff_t ByteOffset,
+ ptrdiff_t ByteCount, char ByteValue,
+ void *Stream) = 0;
+
+ virtual Status addStreamCallback(Stream &Stream, StreamCallback Callback) = 0;
+
+ virtual Expected<void *> rawCreateKernel(void *Program,
+ const std::string &Name) = 0;
+ virtual HandleDestructor getKernelHandleDestructor() = 0;
+
+ virtual Status rawEnqueueKernelLaunch(void *Stream, void *Kernel,
+ KernelLaunchDimensions LaunchDimensions,
+ Span<void *> Arguments,
+ Span<size_t> ArgumentSizes,
+ size_t SharedMemoryBytes) = 0;
+};
+
+// Implementation of templated Stream functions.
+
+template <typename DeviceSrcTy, typename DeviceDstTy>
+Stream &Stream::asyncCopyDToD(DeviceSrcTy &&DeviceSrc,
+ DeviceDstTy &&DeviceDst) {
+ using SrcElementTy =
+ typename std::remove_reference<DeviceSrcTy>::type::value_type;
+ using DstElementTy =
+ typename std::remove_reference<DeviceDstTy>::type::value_type;
+ static_assert(std::is_same<SrcElementTy, DstElementTy>::value,
+ "asyncCopyDToD cannot copy between arrays of different types");
+ DeviceMemorySpan<const SrcElementTy> DeviceSrcSpan(DeviceSrc);
+ DeviceMemorySpan<DstElementTy> DeviceDstSpan(DeviceDst);
+ if (DeviceSrcSpan.size() != DeviceDstSpan.size()) {
+ setStatus(Status("asyncCopyDToD source element count " +
+ std::to_string(DeviceSrcSpan.size()) +
+ " does not equal destination element count " +
+ std::to_string(DeviceDstSpan.size())));
+ return *this;
+ }
+ setStatus(ThePlatform->asyncCopyDToD(
+ DeviceSrcSpan.baseHandle(), DeviceSrcSpan.byte_offset(),
+ DeviceDstSpan.baseHandle(), DeviceDstSpan.byte_offset(),
+ DeviceSrcSpan.byte_size(), TheHandle.get()));
+ return *this;
+}
+
+template <typename DeviceSrcTy, typename DeviceDstTy>
+Stream &Stream::asyncCopyDToD(DeviceSrcTy &&DeviceSrc, DeviceDstTy &&DeviceDst,
+ ptrdiff_t ElementCount) {
+ using SrcElementTy =
+ typename std::remove_reference<DeviceSrcTy>::type::value_type;
+ using DstElementTy =
+ typename std::remove_reference<DeviceDstTy>::type::value_type;
+ static_assert(std::is_same<SrcElementTy, DstElementTy>::value,
+ "asyncCopyDToD cannot copy between arrays of different types");
+ DeviceMemorySpan<const SrcElementTy> DeviceSrcSpan(DeviceSrc);
+ DeviceMemorySpan<DstElementTy> DeviceDstSpan(DeviceDst);
+ if (DeviceSrcSpan.size() < ElementCount) {
+ setStatus(Status("asyncCopyDToD source element count " +
+ std::to_string(DeviceSrcSpan.size()) +
+ " is less than requested element count " +
+ std::to_string(ElementCount)));
+ return *this;
+ }
+ if (DeviceDstSpan.size() < ElementCount) {
+ setStatus(Status("asyncCopyDToD destination element count " +
+ std::to_string(DeviceDst.size()) +
+ " is less than requested element count " +
+ std::to_string(ElementCount)));
+ return *this;
+ }
+ setStatus(ThePlatform->asyncCopyDToD(
+ DeviceSrcSpan.baseHandle(), DeviceSrcSpan.byte_offset(),
+ DeviceDstSpan.baseHandle(), DeviceDstSpan.byte_offset(),
+ ElementCount * sizeof(SrcElementTy), TheHandle.get()));
+ return *this;
+}
+
+template <typename DeviceSrcTy, typename HostDstTy>
+Stream &Stream::asyncCopyDToH(DeviceSrcTy &&DeviceSrc, HostDstTy &&HostDst) {
+ using SrcElementTy =
+ typename std::remove_reference<DeviceSrcTy>::type::value_type;
+ DeviceMemorySpan<const SrcElementTy> DeviceSrcSpan(DeviceSrc);
+ AsyncHostMemorySpan<SrcElementTy> HostDstSpan(HostDst);
+ if (DeviceSrcSpan.size() != HostDstSpan.size()) {
+ setStatus(Status("asyncCopyDToH source element count " +
+ std::to_string(DeviceSrcSpan.size()) +
+ " does not equal destination element count " +
+ std::to_string(HostDstSpan.size())));
+ return *this;
+ }
+ setStatus(ThePlatform->asyncCopyDToH(
+ DeviceSrcSpan.baseHandle(), DeviceSrcSpan.byte_offset(),
+ HostDstSpan.data(), DeviceSrcSpan.byte_size(), TheHandle.get()));
+ return *this;
+}
+
+template <typename DeviceSrcTy, typename HostDstTy>
+Stream &Stream::asyncCopyDToH(DeviceSrcTy &&DeviceSrc, HostDstTy &&HostDst,
+ ptrdiff_t ElementCount) {
+ using SrcElementTy =
+ typename std::remove_reference<DeviceSrcTy>::type::value_type;
+ DeviceMemorySpan<const SrcElementTy> DeviceSrcSpan(DeviceSrc);
+ AsyncHostMemorySpan<SrcElementTy> HostDstSpan(HostDst);
+ if (DeviceSrcSpan.size() < ElementCount) {
+ setStatus(Status("asyncCopyDToH source element count " +
+ std::to_string(DeviceSrcSpan.size()) +
+ " is less than requested element count " +
+ std::to_string(ElementCount)));
+ return *this;
+ }
+ if (HostDstSpan.size() < ElementCount) {
+ setStatus(Status("asyncCopyDToH destination element count " +
+ std::to_string(HostDstSpan.size()) +
+ " is less than requested element count " +
+ std::to_string(ElementCount)));
+ return *this;
+ }
+ setStatus(ThePlatform->asyncCopyDToH(
+ DeviceSrcSpan.baseHandle(), DeviceSrcSpan.byte_offset(),
+ HostDstSpan.data(), ElementCount * sizeof(SrcElementTy),
+ TheHandle.get()));
+ return *this;
+}
+
+template <typename HostSrcTy, typename DeviceDstTy>
+Stream &Stream::asyncCopyHToD(HostSrcTy &&HostSrc, DeviceDstTy &&DeviceDst) {
+ using DstElementTy =
+ typename std::remove_reference<DeviceDstTy>::type::value_type;
+ AsyncHostMemorySpan<const DstElementTy> HostSrcSpan(HostSrc);
+ DeviceMemorySpan<DstElementTy> DeviceDstSpan(DeviceDst);
+ if (HostSrcSpan.size() != DeviceDstSpan.size()) {
+ setStatus(Status("asyncCopyHToD source element count " +
+ std::to_string(HostSrcSpan.size()) +
+ " does not equal destination element count " +
+ std::to_string(DeviceDstSpan.size())));
+ return *this;
+ }
+ setStatus(ThePlatform->asyncCopyHToD(
+ HostSrcSpan.data(), DeviceDstSpan.baseHandle(),
+ DeviceDstSpan.byte_offset(), HostSrcSpan.byte_size(), TheHandle.get()));
+ return *this;
+}
+
+template <typename HostSrcTy, typename DeviceDstTy>
+Stream &Stream::asyncCopyHToD(HostSrcTy &&HostSrc, DeviceDstTy &DeviceDst,
+ ptrdiff_t ElementCount) {
+ using DstElementTy =
+ typename std::remove_reference<DeviceDstTy>::type::value_type;
+ AsyncHostMemorySpan<const DstElementTy> HostSrcSpan(HostSrc);
+ DeviceMemorySpan<DstElementTy> DeviceDstSpan(DeviceDst);
+ if (HostSrcSpan.size() < ElementCount) {
+ setStatus(Status("copyHToD source element count " +
+ std::to_string(HostSrcSpan.size()) +
+ " is less than requested element count " +
+ std::to_string(ElementCount)));
+ return *this;
+ }
+ if (DeviceDstSpan.size() < ElementCount) {
+ setStatus(Status("copyHToD destination element count " +
+ std::to_string(DeviceDstSpan.size()) +
+ " is less than requested element count " +
+ std::to_string(ElementCount)));
+ return *this;
+ }
+ setStatus(ThePlatform->asyncCopyHToD(
+ HostSrcSpan.data(), DeviceDstSpan.baseHandle(),
+ DeviceDstSpan.byte_offset(), ElementCount * sizeof(DstElementTy),
+ TheHandle.get()));
+ return *this;
+}
+
+template <typename DeviceDstTy>
+Stream &Stream::asyncMemsetD(DeviceDstTy &&DeviceDst, char ByteValue) {
+ using DstElementTy =
+ typename std::remove_reference<DeviceDstTy>::type::value_type;
+ DeviceMemorySpan<DstElementTy> DeviceDstSpan(DeviceDst);
+ setStatus(ThePlatform->asyncMemsetD(
+ DeviceDstSpan.baseHandle(), DeviceDstSpan.byte_offset(),
+ DeviceDstSpan.byte_size(), ByteValue, TheHandle.get()));
+ return *this;
+}
+
+template <typename DeviceSrcTy, typename DeviceDstTy>
+Stream &Stream::syncCopyDToD(DeviceSrcTy &&DeviceSrc, DeviceDstTy &&DeviceDst) {
+ using SrcElementTy =
+ typename std::remove_reference<DeviceSrcTy>::type::value_type;
+ using DstElementTy =
+ typename std::remove_reference<DeviceDstTy>::type::value_type;
+ static_assert(std::is_same<SrcElementTy, DstElementTy>::value,
+ "copyDToD cannot copy between arrays of different types");
+ DeviceMemorySpan<const SrcElementTy> DeviceSrcSpan(DeviceSrc);
+ DeviceMemorySpan<DstElementTy> DeviceDstSpan(DeviceDst);
+ if (DeviceSrcSpan.size() != DeviceDstSpan.size()) {
+ setStatus(Status("copyDToD source element count " +
+ std::to_string(DeviceSrcSpan.size()) +
+ " does not equal destination element count " +
+ std::to_string(DeviceDstSpan.size())));
+ return *this;
+ }
+ if (setStatus(ThePlatform->asyncCopyDToD(
+ DeviceSrcSpan.baseHandle(), DeviceSrcSpan.byte_offset(),
+ DeviceDstSpan.baseHandle(), DeviceDstSpan.byte_offset(),
+ DeviceSrcSpan.byte_size(), TheHandle.get()))
+ .isError()) {
+ return *this;
+ }
+ setStatus(sync());
+ return *this;
+}
+
+template <typename DeviceSrcTy, typename DeviceDstTy>
+Stream &Stream::syncCopyDToD(DeviceSrcTy &&DeviceSrc, DeviceDstTy &&DeviceDst,
+ ptrdiff_t ElementCount) {
+ using SrcElementTy =
+ typename std::remove_reference<DeviceSrcTy>::type::value_type;
+ using DstElementTy =
+ typename std::remove_reference<DeviceDstTy>::type::value_type;
+ static_assert(std::is_same<SrcElementTy, DstElementTy>::value,
+ "copyDToD cannot copy between arrays of different types");
+ DeviceMemorySpan<const SrcElementTy> DeviceSrcSpan(DeviceSrc);
+ DeviceMemorySpan<DstElementTy> DeviceDstSpan(DeviceDst);
+ if (DeviceSrcSpan.size() < ElementCount) {
+ setStatus(Status("copyDToD source element count " +
+ std::to_string(DeviceSrcSpan.size()) +
+ " is less than requested element count " +
+ std::to_string(ElementCount)));
+ return *this;
+ }
+ if (DeviceDstSpan.size() < ElementCount) {
+ setStatus(Status("copyDToD destination element count " +
+ std::to_string(DeviceDst.size()) +
+ " is less than requested element count " +
+ std::to_string(ElementCount)));
+ return *this;
+ }
+ if (setStatus(ThePlatform->asyncCopyDToD(
+ DeviceSrcSpan.baseHandle(), DeviceSrcSpan.byte_offset(),
+ DeviceDstSpan.baseHandle(), DeviceDstSpan.byte_offset(),
+ ElementCount * sizeof(SrcElementTy), TheHandle.get()))
+ .isError()) {
+ return *this;
+ }
+ setStatus(sync());
+ return *this;
+}
+
+template <typename DeviceSrcTy, typename HostDstTy>
+Stream &Stream::syncCopyDToH(DeviceSrcTy &&DeviceSrc, HostDstTy &&HostDst) {
+ using SrcElementTy =
+ typename std::remove_reference<DeviceSrcTy>::type::value_type;
+ DeviceMemorySpan<const SrcElementTy> DeviceSrcSpan(DeviceSrc);
+ Span<SrcElementTy> HostDstSpan(HostDst);
+ if (DeviceSrcSpan.size() != HostDstSpan.size()) {
+ setStatus(Status("copyDToH source element count " +
+ std::to_string(DeviceSrcSpan.size()) +
+ " does not equal destination element count " +
+ std::to_string(HostDstSpan.size())));
+ return *this;
+ }
+ if (setStatus(ThePlatform->asyncCopyDToH(
+ DeviceSrcSpan.baseHandle(), DeviceSrcSpan.byte_offset(),
+ HostDstSpan.data(), DeviceSrcSpan.byte_size(),
+ TheHandle.get()))
+ .isError()) {
+ return *this;
+ }
+ setStatus(sync());
+ return *this;
+}
+
+template <typename DeviceSrcTy, typename HostDstTy>
+Stream &Stream::syncCopyDToH(DeviceSrcTy &&DeviceSrc, HostDstTy &&HostDst,
+ ptrdiff_t ElementCount) {
+ using SrcElementTy =
+ typename std::remove_reference<DeviceSrcTy>::type::value_type;
+ DeviceMemorySpan<const SrcElementTy> DeviceSrcSpan(DeviceSrc);
+ Span<SrcElementTy> HostDstSpan(HostDst);
+ if (DeviceSrcSpan.size() < ElementCount) {
+ setStatus(Status("copyDToH source element count " +
+ std::to_string(DeviceSrcSpan.size()) +
+ " is less than requested element count " +
+ std::to_string(ElementCount)));
+ return *this;
+ }
+ if (HostDstSpan.size() < ElementCount) {
+ setStatus(Status("copyDToH destination element count " +
+ std::to_string(HostDstSpan.size()) +
+ " is less than requested element count " +
+ std::to_string(ElementCount)));
+ return *this;
+ }
+ if (setStatus(ThePlatform->asyncCopyDToH(
+ DeviceSrcSpan.baseHandle(), DeviceSrcSpan.byte_offset(),
+ HostDstSpan.data(), ElementCount * sizeof(SrcElementTy),
+ TheHandle.get()))
+ .isError()) {
+ return *this;
+ }
+ setStatus(sync());
+ return *this;
+}
+
+template <typename HostSrcTy, typename DeviceDstTy>
+Stream &Stream::syncCopyHToD(HostSrcTy &&HostSrc, DeviceDstTy &&DeviceDst) {
+ using DstElementTy =
+ typename std::remove_reference<DeviceDstTy>::type::value_type;
+ Span<const DstElementTy> HostSrcSpan(HostSrc);
+ DeviceMemorySpan<DstElementTy> DeviceDstSpan(DeviceDst);
+ if (HostSrcSpan.size() != DeviceDstSpan.size()) {
+ setStatus(Status("copyHToD source element count " +
+ std::to_string(HostSrcSpan.size()) +
+ " does not equal destination element count " +
+ std::to_string(DeviceDstSpan.size())));
+ return *this;
+ }
+ if (setStatus(ThePlatform->asyncCopyHToD(
+ HostSrcSpan.data(), DeviceDstSpan.baseHandle(),
+ DeviceDstSpan.byte_offset(), DeviceDstSpan.byte_size(),
+ TheHandle.get()))
+ .isError()) {
+ return *this;
+ }
+ setStatus(sync());
+ return *this;
+}
+
+template <typename HostSrcTy, typename DeviceDstTy>
+Stream &Stream::syncCopyHToD(HostSrcTy &&HostSrc, DeviceDstTy &DeviceDst,
+ ptrdiff_t ElementCount) {
+ using DstElementTy =
+ typename std::remove_reference<DeviceDstTy>::type::value_type;
+ Span<const DstElementTy> HostSrcSpan(HostSrc);
+ DeviceMemorySpan<DstElementTy> DeviceDstSpan(DeviceDst);
+ if (HostSrcSpan.size() < ElementCount) {
+ setStatus(Status("copyHToD source element count " +
+ std::to_string(HostSrcSpan.size()) +
+ " is less than requested element count " +
+ std::to_string(ElementCount)));
+ return *this;
+ }
+ if (DeviceDstSpan.size() < ElementCount) {
+ setStatus(Status("copyHToD destination element count " +
+ std::to_string(DeviceDstSpan.size()) +
+ " is less than requested element count " +
+ std::to_string(ElementCount)));
+ return *this;
+ }
+ if (setStatus(ThePlatform->asyncCopyHToD(
+ HostSrcSpan.data(), DeviceDstSpan.baseHandle(),
+ DeviceDstSpan.byte_offset(),
+ ElementCount * sizeof(DstElementTy), TheHandle.get()))
+ .isError()) {
+ return *this;
+ }
+ setStatus(sync());
+ return *this;
+}
+
+/// Owned device memory.
+///
+/// Device memory that frees itself when it goes out of scope.
+template <typename ElementType> class DeviceMemory {
+public:
+ using element_type = ElementType;
+ using index_type = std::ptrdiff_t;
+ using value_type = typename std::remove_const<element_type>::type;
+
+ DeviceMemory(const DeviceMemory &) = delete;
+ DeviceMemory &operator=(const DeviceMemory &) = delete;
+ DeviceMemory(DeviceMemory &&) noexcept;
+ DeviceMemory &operator=(DeviceMemory &&) noexcept;
+ ~DeviceMemory() = default;
+
+ /// Gets the raw base handle for the underlying platform implementation.
+ void *handle() const { return ThePointer.get(); }
+
+ index_type length() const { return TheSize; }
+ index_type size() const { return TheSize; }
+ index_type byte_size() const { // NOLINT
+ return TheSize * sizeof(element_type);
+ }
+ bool empty() const { return TheSize == 0; }
+
+ // These conversion operators are useful for making triple-chevron kernel
+ // launches more concise.
+ operator element_type *() {
+ return static_cast<element_type *>(ThePointer.get());
+ }
+ operator const element_type *() const { return ThePointer.get(); }
+
+ /// Converts a const object to a DeviceMemorySpan of const elements.
+ DeviceMemorySpan<const element_type> asSpan() const {
+ return DeviceMemorySpan<const element_type>(
+ ThePlatform, static_cast<const element_type *>(ThePointer.get()),
+ TheSize, 0);
+ }
+
+ /// Converts an object to a DeviceMemorySpan.
+ DeviceMemorySpan<element_type> asSpan() {
+ return DeviceMemorySpan<element_type>(
+ ThePlatform, static_cast<element_type *>(ThePointer.get()), TheSize, 0);
+ }
+
+private:
+ friend class Platform;
+ template <typename T> friend class DeviceMemorySpan;
+
+ DeviceMemory(Platform *ThePlatform, void *Pointer, index_type ElementCount,
+ HandleDestructor Destructor)
+ : ThePlatform(ThePlatform), ThePointer(Pointer, Destructor),
+ TheSize(ElementCount) {}
+
+ Platform *ThePlatform;
+ std::unique_ptr<void, HandleDestructor> ThePointer;
+ ptrdiff_t TheSize;
+};
+
+template <typename T>
+DeviceMemory<T>::DeviceMemory(DeviceMemory &&) noexcept = default;
+template <typename T>
+DeviceMemory<T> &DeviceMemory<T>::operator=(DeviceMemory &&) noexcept = default;
+
+/// View into device memory.
+///
+/// Like a Span, but for device memory rather than host memory.
+template <typename ElementType> class DeviceMemorySpan {
+public:
+ /// \name constants and types
+ /// \{
+ using element_type = ElementType;
+ using index_type = std::ptrdiff_t;
+ using pointer = element_type *;
+ using reference = element_type &;
+ using iterator = element_type *;
+ using const_iterator = const element_type *;
+ using value_type = typename std::remove_const<element_type>::type;
+ /// \}
+
+ DeviceMemorySpan()
+ : ThePlatform(nullptr), TheHandle(nullptr), TheSize(0), TheOffset(0),
+ TheSpanHandle(nullptr) {}
+
+ // Intentionally implicit.
+ template <typename OtherElementType>
+ DeviceMemorySpan(DeviceMemorySpan<OtherElementType> &ASpan)
+ : ThePlatform(ASpan.ThePlatform),
+ TheHandle(static_cast<pointer>(ASpan.baseHandle())),
+ TheSize(ASpan.size()), TheOffset(ASpan.offset()),
+ TheSpanHandle(nullptr) {}
+
+ // Intentionally implicit.
+ template <typename OtherElementType>
+ DeviceMemorySpan(DeviceMemorySpan<OtherElementType> &&ASpan)
+ : ThePlatform(ASpan.ThePlatform),
+ TheHandle(static_cast<pointer>(ASpan.baseHandle())),
+ TheSize(ASpan.size()), TheOffset(ASpan.offset()),
+ TheSpanHandle(nullptr) {}
+
+ // Intentionally implicit.
+ template <typename OtherElementType>
+ DeviceMemorySpan(DeviceMemory<OtherElementType> &Memory)
+ : ThePlatform(Memory.ThePlatform),
+ TheHandle(static_cast<value_type *>(Memory.handle())),
+ TheSize(Memory.size()), TheOffset(0), TheSpanHandle(nullptr) {}
+
+ ~DeviceMemorySpan() {
+ if (TheSpanHandle) {
+ ThePlatform->rawDestroyDeviceMemorySpanHandle(
+ const_cast<value_type *>(TheSpanHandle));
+ }
+ }
+
+ /// \name observers
+ /// \{
+ index_type length() const { return TheSize; }
+ index_type size() const { return TheSize; }
+ index_type byte_size() const { // NOLINT
+ return TheSize * sizeof(element_type);
+ }
+ index_type offset() const { return TheOffset; }
+ index_type byte_offset() const { // NOLINT
+ return TheOffset * sizeof(element_type);
+ }
+ bool empty() const { return TheSize == 0; }
+ /// \}
+
+ void *baseHandle() const {
+ return static_cast<void *>(const_cast<value_type *>(TheHandle));
+ }
+
+ /// Casts to a host memory pointer.
+ ///
+ /// This is only guaranteed to make sense for the CUDA platform, where device
+ /// pointers can be stored and manipulated much like host pointers. This makes
+ /// it easy to do triple-chevron kernel launches in CUDA because
+ /// DeviceMemorySpan values can be passed to parameters expecting regular
+ /// pointers.
+ ///
+ /// If the CUDA platform is using unified memory, it may also be possible to
+ /// dereference this pointer on the host.
+ ///
+ /// For platforms other than CUDA, this may return a garbage pointer.
+ operator element_type *() const {
+ if (!TheSpanHandle)
+ TheSpanHandle = ThePlatform->getDeviceMemorySpanHandle(
+ TheHandle, TheSize * sizeof(element_type),
+ TheOffset * sizeof(element_type));
+ return TheSpanHandle;
+ }
+
+ DeviceMemorySpan<element_type> first(index_type Count) const {
+ bool Valid = Count >= 0 && Count <= TheSize;
+ if (!Valid)
+ std::terminate();
+ return DeviceMemorySpan<element_type>(ThePlatform, TheHandle, Count,
+ TheOffset);
+ }
+
+ DeviceMemorySpan<element_type> last(index_type Count) const {
+ bool Valid = Count >= 0 && Count <= TheSize;
+ if (!Valid)
+ std::terminate();
+ return DeviceMemorySpan<element_type>(ThePlatform, TheHandle, Count,
+ TheOffset + TheSize - Count);
+ }
+
+ DeviceMemorySpan<element_type>
+ subspan(index_type Offset, index_type Count = dynamic_extent) const {
+ bool Valid =
+ (Offset == 0 || (Offset > 0 && Offset <= TheSize)) &&
+ (Count == dynamic_extent || (Count >= 0 && Offset + Count <= TheSize));
+ if (!Valid)
+ std::terminate();
+ return DeviceMemorySpan<element_type>(ThePlatform, TheHandle, Count,
+ TheOffset + Offset);
+ }
+
+private:
+ template <typename T> friend class DeviceMemory;
+ template <typename T> friend class DeviceMemorySpan;
+ friend class Platform;
+
+ DeviceMemorySpan(Platform *ThePlatform, pointer AHandle, index_type Size,
+ index_type Offset)
+ : ThePlatform(ThePlatform), TheHandle(AHandle), TheSize(Size),
+ TheOffset(Offset), TheSpanHandle(nullptr) {}
+
+ Platform *ThePlatform;
+ pointer TheHandle;
+ index_type TheSize;
+ index_type TheOffset;
+ pointer TheSpanHandle;
+};
+
+/// Asynchronous host memory.
+///
+/// This memory is pinned or otherwise registered in the host memory space to
+/// allow for asynchronous copies between it and device memory.
+///
+/// This memory unpins/unregisters itself when it goes out of scope, but does
+/// not free itself.
+template <typename ElementType> class AsyncHostMemory {
+public:
+ using value_type = ElementType;
+ using remove_const_type = typename std::remove_const<ElementType>::type;
+
+ AsyncHostMemory(const AsyncHostMemory &) = delete;
+ AsyncHostMemory &operator=(const AsyncHostMemory &) = delete;
+ AsyncHostMemory(AsyncHostMemory &&) noexcept;
+ AsyncHostMemory &operator=(AsyncHostMemory &&) noexcept;
+ ~AsyncHostMemory() = default;
+
+ template <typename OtherElementType>
+ AsyncHostMemory(AsyncHostMemory<OtherElementType> &&Other)
+ : ThePointer(std::move(Other.ThePointer)),
+ TheElementCount(Other.TheElementCount) {
+ static_assert(
+ std::is_assignable<ElementType *, OtherElementType *>::value,
+ "cannot assign OtherElementType pointer to ElementType pointer type");
+ }
+
+ ElementType *data() const {
+ return const_cast<ElementType *>(
+ static_cast<remove_const_type *>(ThePointer.get()));
+ }
+ ptrdiff_t size() const { return TheElementCount; }
+
+private:
+ template <typename U> friend class AsyncHostMemory;
+ friend class Platform;
+ AsyncHostMemory(ElementType *Pointer, ptrdiff_t ElementCount,
+ HandleDestructor Destructor)
+ : ThePointer(
+ static_cast<void *>(const_cast<remove_const_type *>(Pointer)),
+ Destructor),
+ TheElementCount(ElementCount) {}
+
+ std::unique_ptr<void, HandleDestructor> ThePointer;
+ ptrdiff_t TheElementCount;
+};
+
+template <typename T>
+AsyncHostMemory<T>::AsyncHostMemory(AsyncHostMemory &&) noexcept = default;
+template <typename T>
+AsyncHostMemory<T> &AsyncHostMemory<T>::
+operator=(AsyncHostMemory &&) noexcept = default;
+
+/// Owned registered host memory.
+///
+/// Like AsyncHostMemory, but this memory also frees itself in addition to
+/// unpinning/unregistering itself when it goes out of scope.
+template <typename ElementType> class OwnedAsyncHostMemory {
+public:
+ using remove_const_type = typename std::remove_const<ElementType>::type;
+
+ OwnedAsyncHostMemory(const OwnedAsyncHostMemory &) = delete;
+ OwnedAsyncHostMemory &operator=(const OwnedAsyncHostMemory &) = delete;
+ OwnedAsyncHostMemory(OwnedAsyncHostMemory &&) noexcept;
+ OwnedAsyncHostMemory &operator=(OwnedAsyncHostMemory &&) noexcept;
+
+ ~OwnedAsyncHostMemory() {
+ if (ThePointer.get()) {
+ // We use placement new to construct these objects, so we have to call the
+ // destructors explicitly.
+ for (ptrdiff_t I = 0; I < TheElementCount; ++I)
+ static_cast<ElementType *>(ThePointer.get())[I].~ElementType();
+ }
+ }
+
+ ElementType *get() const {
+ return const_cast<ElementType *>(
+ static_cast<remove_const_type *>(ThePointer.get()));
+ }
+
+ ElementType &operator[](ptrdiff_t I) const {
+ assert(I >= 0 && I < TheElementCount);
+ return get()[I];
+ }
+
+private:
+ template <typename T> friend class AsyncHostMemorySpan;
+
+ friend class Platform;
+
+ OwnedAsyncHostMemory(void *Memory, ptrdiff_t ElementCount,
+ HandleDestructor Destructor)
+ : ThePointer(Memory, Destructor), TheElementCount(ElementCount) {}
+
+ std::unique_ptr<void, HandleDestructor> ThePointer;
+ ptrdiff_t TheElementCount;
+};
+
+template <typename T>
+OwnedAsyncHostMemory<T>::OwnedAsyncHostMemory(
+ OwnedAsyncHostMemory &&) noexcept = default;
+template <typename T>
+OwnedAsyncHostMemory<T> &OwnedAsyncHostMemory<T>::
+operator=(OwnedAsyncHostMemory &&) noexcept = default;
+
+/// View into registered host memory.
+///
+/// Like Span but for registered host memory.
+template <typename ElementType> class AsyncHostMemorySpan {
+public:
+ /// \name constants and types
+ /// \{
+ using element_type = ElementType;
+ using index_type = std::ptrdiff_t;
+ using pointer = element_type *;
+ using reference = element_type &;
+ using iterator = element_type *;
+ using const_iterator = const element_type *;
+ using value_type = typename std::remove_const<element_type>::type;
+ /// \}
+
+ AsyncHostMemorySpan() : TheSpan() {}
+
+ // Intentionally implicit.
+ template <typename OtherElementType>
+ AsyncHostMemorySpan(AsyncHostMemory<OtherElementType> &Memory)
+ : TheSpan(Memory.data(), Memory.size()) {}
+
+ // Intentionally implicit.
+ template <typename OtherElementType>
+ AsyncHostMemorySpan(OwnedAsyncHostMemory<OtherElementType> &Owned)
+ : TheSpan(Owned.get(), Owned.TheElementCount) {}
+
+ // Intentionally implicit.
+ template <typename OtherElementType>
+ AsyncHostMemorySpan(AsyncHostMemorySpan<OtherElementType> &ASpan)
+ : TheSpan(ASpan) {}
+
+ // Intentionally implicit.
+ template <typename OtherElementType>
+ AsyncHostMemorySpan(AsyncHostMemorySpan<OtherElementType> &&Span)
+ : TheSpan(Span) {}
+
+ /// \name observers
+ /// \{
+ index_type length() const { return TheSpan.length(); }
+ index_type size() const { return TheSpan.size(); }
+ index_type byte_size() const { // NOLINT
+ return TheSpan.size() * sizeof(element_type);
+ }
+ bool empty() const { return TheSpan.empty(); }
+ /// \}
+
+ pointer data() const noexcept { return TheSpan.data(); }
+ operator element_type *() const { return TheSpan.data(); }
+
+ AsyncHostMemorySpan<element_type> first(index_type Count) const {
+ return AsyncHostMemorySpan<element_type>(TheSpan.first(Count));
+ }
+
+ AsyncHostMemorySpan<element_type> last(index_type Count) const {
+ return AsyncHostMemorySpan<element_type>(TheSpan.last(Count));
+ }
+
+ AsyncHostMemorySpan<element_type>
+ subspan(index_type Offset, index_type Count = dynamic_extent) const {
+ return AsyncHostMemorySpan<element_type>(TheSpan.subspan(Offset, Count));
+ }
+
+private:
+ template <typename T> friend class AsyncHostMemory;
+
+ explicit AsyncHostMemorySpan(Span<ElementType> ArraySpan)
+ : TheSpan(ArraySpan) {}
+
+ Span<ElementType> TheSpan;
+};
+
+} // namespace acxxel
+
+#endif // ACXXEL_ACXXEL_H
Added: parallel-libs/trunk/acxxel/config.h.in
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/config.h.in?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/config.h.in (added)
+++ parallel-libs/trunk/acxxel/config.h.in Tue Oct 25 15:18:56 2016
@@ -0,0 +1,16 @@
+//===--- config.h - Macros generated during configuration -------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// This file declares macros that are generated during the configuration stage
+/// of the build.
+///
+//===----------------------------------------------------------------------===//
+
+#cmakedefine ACXXEL_ENABLE_CUDA
+#cmakedefine ACXXEL_ENABLE_OPENCL
Added: parallel-libs/trunk/acxxel/cuda_acxxel.cpp
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/cuda_acxxel.cpp?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/cuda_acxxel.cpp (added)
+++ parallel-libs/trunk/acxxel/cuda_acxxel.cpp Tue Oct 25 15:18:56 2016
@@ -0,0 +1,548 @@
+//===--- cuda_acxxel.cpp - CUDA implementation of the Acxxel API ----------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// This file defines the standard CUDA implementation of the Acxxel API.
+///
+//===----------------------------------------------------------------------===//
+
+#include "acxxel.h"
+
+#include "cuda.h"
+#include "cuda_runtime.h"
+
+#include <array>
+#include <cassert>
+#include <sstream>
+#include <vector>
+
+namespace acxxel {
+
+namespace {
+
+/// Index of active device for this thread.
+thread_local int ActiveDeviceIndex = 0;
+
+static std::string getCUErrorMessage(CUresult Result) {
+ if (!Result)
+ return "success";
+ const char *ErrorName = "UNKNOWN_ERROR_NAME";
+ const char *ErrorDescription = "UNKNOWN_ERROR_DESCRIPTION";
+ cuGetErrorName(Result, &ErrorName);
+ cuGetErrorString(Result, &ErrorDescription);
+ std::ostringstream OutStream;
+ OutStream << "CUDA driver error: code = " << Result
+ << ", name = " << ErrorName
+ << ", description = " << ErrorDescription;
+ return OutStream.str();
+}
+
+static Status getCUError(CUresult Result, const std::string &Message) {
+ if (!Result)
+ return Status();
+ std::ostringstream OutStream;
+ OutStream << getCUErrorMessage(Result) << ", message = " << Message;
+ return Status(OutStream.str());
+}
+
+static std::string getCUDAErrorMessage(cudaError_t E) {
+ if (!E)
+ return "success";
+ std::ostringstream OutStream;
+ OutStream << "CUDA runtime error: code = " << E
+ << ", name = " << cudaGetErrorName(E)
+ << ", description = " << cudaGetErrorString(E);
+ return OutStream.str();
+}
+
+static Status getCUDAError(cudaError_t E, const std::string &Message) {
+ if (!E)
+ return Status();
+ std::ostringstream OutStream;
+ OutStream << getCUDAErrorMessage(E) << ", message = " << Message;
+ return Status(OutStream.str());
+}
+
+static void logCUWarning(CUresult Result, const std::string &Message) {
+ if (Result) {
+ std::ostringstream OutStream;
+ OutStream << Message << ": " << getCUErrorMessage(Result);
+ logWarning(OutStream.str());
+ }
+}
+
+/// A CUDA Platform implementation.
+class CUDAPlatform : public Platform {
+public:
+ ~CUDAPlatform() override = default;
+
+ static Expected<CUDAPlatform> create();
+
+ Expected<int> getDeviceCount() override;
+
+ Status setActiveDeviceForThread(int DeviceIndex) override;
+
+ int getActiveDeviceForThread() override;
+
+ Expected<Stream> createStream() override;
+
+ Status streamSync(void *Stream) override;
+
+ Status streamWaitOnEvent(void *Stream, void *Event) override;
+
+ Expected<Event> createEvent() override;
+
+protected:
+ Expected<void *> rawMallocD(ptrdiff_t ByteCount) override;
+ HandleDestructor getDeviceMemoryHandleDestructor() override;
+ void *getDeviceMemorySpanHandle(void *BaseHandle, size_t ByteSize,
+ size_t ByteOffset) override;
+ virtual void rawDestroyDeviceMemorySpanHandle(void *Handle) override;
+
+ Expected<void *> rawGetDeviceSymbolAddress(const void *Symbol) override;
+ Expected<ptrdiff_t> rawGetDeviceSymbolSize(const void *Symbol) override;
+
+ Status rawCopyDToD(const void *DeviceSrc, ptrdiff_t DeviceSrcByteOffset,
+ void *DeviceDst, ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount) override;
+ Status rawCopyDToH(const void *DeviceSrc, ptrdiff_t DeviceSrcByteOffset,
+ void *HostDst, ptrdiff_t ByteCount) override;
+ Status rawCopyHToD(const void *HostSrc, void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount) override;
+
+ Status rawMemsetD(void *DeviceDst, ptrdiff_t ByteOffset, ptrdiff_t ByteCount,
+ char ByteValue) override;
+
+ Status rawRegisterHostMem(const void *Memory, ptrdiff_t ByteCount) override;
+ HandleDestructor getUnregisterHostMemoryHandleDestructor() override;
+
+ Expected<void *> rawMallocRegisteredH(ptrdiff_t ByteCount) override;
+ HandleDestructor getFreeHostMemoryHandleDestructor() override;
+
+ Status asyncCopyDToD(const void *DeviceSrc, ptrdiff_t DeviceSrcByteOffset,
+ void *DeviceDst, ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount, void *Stream) override;
+ Status asyncCopyDToH(const void *DeviceSrc, ptrdiff_t DeviceSrcByteOffset,
+ void *HostDst, ptrdiff_t ByteCount,
+ void *Stream) override;
+ Status asyncCopyHToD(const void *HostSrc, void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset, ptrdiff_t ByteCount,
+ void *Stream) override;
+
+ Status asyncMemsetD(void *DeviceDst, ptrdiff_t ByteOffset,
+ ptrdiff_t ByteCount, char ByteValue,
+ void *Stream) override;
+
+ Status addStreamCallback(Stream &Stream, StreamCallback Callback) override;
+
+ Expected<Program> createProgramFromSource(Span<const char> Source) override;
+
+ Status enqueueEvent(void *Event, void *Stream) override;
+ bool eventIsDone(void *Event) override;
+ Status eventSync(void *Event) override;
+ Expected<float> getSecondsBetweenEvents(void *StartEvent,
+ void *EndEvent) override;
+
+ Expected<void *> rawCreateKernel(void *Program,
+ const std::string &Name) override;
+ HandleDestructor getKernelHandleDestructor() override;
+
+ Status rawEnqueueKernelLaunch(void *Stream, void *Kernel,
+ KernelLaunchDimensions LaunchDimensions,
+ Span<void *> Arguments,
+ Span<size_t> ArgumentSizes,
+ size_t SharedMemoryBytes) override;
+
+private:
+ explicit CUDAPlatform(const std::vector<CUcontext> &Contexts)
+ : TheContexts(Contexts) {}
+
+ // Vector of contexts for each device.
+ std::vector<CUcontext> TheContexts;
+};
+
+Expected<CUDAPlatform> CUDAPlatform::create() {
+ std::vector<CUcontext> Contexts;
+ if (CUresult Result = cuInit(0))
+ return getCUError(Result, "cuInit");
+
+ int DeviceCount = 0;
+ if (CUresult Result = cuDeviceGetCount(&DeviceCount))
+ return getCUError(Result, "cuDeviceGetCount");
+
+ for (int I = 0; I < DeviceCount; ++I) {
+ CUdevice Device;
+ if (CUresult Result = cuDeviceGet(&Device, I))
+ return getCUError(Result, "cuDeviceGet");
+ CUcontext Context;
+ if (CUresult Result = cuDevicePrimaryCtxRetain(&Context, Device))
+ return getCUError(Result, "cuDevicePrimaryCtxRetain");
+ if (CUresult Result = cuCtxSetCurrent(Context))
+ return getCUError(Result, "cuCtxSetCurrent");
+ Contexts.emplace_back(Context);
+ }
+
+ return CUDAPlatform(Contexts);
+}
+
+Status CUDAPlatform::setActiveDeviceForThread(int DeviceIndex) {
+ if (static_cast<size_t>(DeviceIndex) >= TheContexts.size())
+ return Status("invalid device index for SetActiveDevice: " +
+ std::to_string(DeviceIndex));
+ ActiveDeviceIndex = DeviceIndex;
+ return getCUError(cuCtxSetCurrent(TheContexts[DeviceIndex]),
+ "setActiveDeviceForThread cuCtxSetCurrent");
+}
+
+int CUDAPlatform::getActiveDeviceForThread() { return ActiveDeviceIndex; }
+
+Expected<int> CUDAPlatform::getDeviceCount() {
+ int Count = 0;
+ if (CUresult Result = cuDeviceGetCount(&Count))
+ return getCUError(Result, "cuDeviceGetCount");
+ return Count;
+}
+
+static void cudaDestroyStream(void *H) {
+ logCUWarning(cuStreamDestroy(static_cast<CUstream_st *>(H)),
+ "cuStreamDestroy");
+}
+
+Expected<Stream> CUDAPlatform::createStream() {
+ unsigned int Flags = CU_STREAM_DEFAULT;
+ CUstream Handle;
+ if (CUresult Result = cuStreamCreate(&Handle, Flags))
+ return getCUError(Result, "cuStreamCreate");
+ return constructStream(this, Handle, cudaDestroyStream);
+}
+
+Status CUDAPlatform::streamSync(void *Stream) {
+ return getCUError(cuStreamSynchronize(static_cast<CUstream_st *>(Stream)),
+ "cuStreamSynchronize");
+}
+
+Status CUDAPlatform::streamWaitOnEvent(void *Stream, void *Event) {
+ // CUDA docs says flags must be 0.
+ unsigned int Flags = 0u;
+ return getCUError(cuStreamWaitEvent(static_cast<CUstream_st *>(Stream),
+ static_cast<CUevent_st *>(Event), Flags),
+ "cuStreamWaitEvent");
+}
+
+static void cudaDestroyEvent(void *H) {
+ logCUWarning(cuEventDestroy(static_cast<CUevent_st *>(H)), "cuEventDestroy");
+}
+
+Expected<Event> CUDAPlatform::createEvent() {
+ unsigned int Flags = CU_EVENT_DEFAULT;
+ CUevent Handle;
+ if (CUresult Result = cuEventCreate(&Handle, Flags))
+ return getCUError(Result, "cuEventCreate");
+ return constructEvent(this, Handle, cudaDestroyEvent);
+}
+
+Status CUDAPlatform::enqueueEvent(void *Event, void *Stream) {
+ return getCUError(cuEventRecord(static_cast<CUevent_st *>(Event),
+ static_cast<CUstream_st *>(Stream)),
+ "cuEventRecord");
+}
+
+bool CUDAPlatform::eventIsDone(void *Event) {
+ return cuEventQuery(static_cast<CUevent_st *>(Event)) != CUDA_ERROR_NOT_READY;
+}
+
+Status CUDAPlatform::eventSync(void *Event) {
+ return getCUError(cuEventSynchronize(static_cast<CUevent_st *>(Event)),
+ "cuEventSynchronize");
+}
+
+Expected<float> CUDAPlatform::getSecondsBetweenEvents(void *StartEvent,
+ void *EndEvent) {
+ float Milliseconds;
+ if (CUresult Result = cuEventElapsedTime(
+ &Milliseconds, static_cast<CUevent_st *>(StartEvent),
+ static_cast<CUevent_st *>(EndEvent)))
+ return getCUError(Result, "cuEventElapsedTime");
+ return Milliseconds * 1e-6;
+}
+
+Expected<void *> CUDAPlatform::rawMallocD(ptrdiff_t ByteCount) {
+ if (!ByteCount)
+ return nullptr;
+ CUdeviceptr Pointer;
+ if (CUresult Result = cuMemAlloc(&Pointer, ByteCount))
+ return getCUError(Result, "cuMemAlloc");
+ return reinterpret_cast<void *>(Pointer);
+}
+
+static void cudaDestroyDeviceMemory(void *H) {
+ logCUWarning(cuMemFree(reinterpret_cast<CUdeviceptr>(H)), "cuMemFree");
+}
+
+HandleDestructor CUDAPlatform::getDeviceMemoryHandleDestructor() {
+ return cudaDestroyDeviceMemory;
+}
+
+void *CUDAPlatform::getDeviceMemorySpanHandle(void *BaseHandle, size_t,
+ size_t ByteOffset) {
+ return static_cast<char *>(BaseHandle) + ByteOffset;
+}
+
+void CUDAPlatform::rawDestroyDeviceMemorySpanHandle(void *) {
+ // Do nothing for this platform.
+}
+
+Expected<void *> CUDAPlatform::rawGetDeviceSymbolAddress(const void *Symbol) {
+ void *Address;
+ if (cudaError_t Status = cudaGetSymbolAddress(&Address, Symbol))
+ return getCUDAError(Status, "cudaGetSymbolAddress");
+ return Address;
+}
+
+Expected<ptrdiff_t> CUDAPlatform::rawGetDeviceSymbolSize(const void *Symbol) {
+ size_t Size;
+ if (cudaError_t Status = cudaGetSymbolSize(&Size, Symbol))
+ return getCUDAError(Status, "cudaGetSymbolSize");
+ return Size;
+}
+
+static const void *offsetVoidPtr(const void *Ptr, ptrdiff_t ByteOffset) {
+ return static_cast<const void *>(static_cast<const char *>(Ptr) + ByteOffset);
+}
+
+static void *offsetVoidPtr(void *Ptr, ptrdiff_t ByteOffset) {
+ return static_cast<void *>(static_cast<char *>(Ptr) + ByteOffset);
+}
+
+Status CUDAPlatform::rawCopyDToD(const void *DeviceSrc,
+ ptrdiff_t DeviceSrcByteOffset, void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount) {
+ return getCUError(cuMemcpyDtoD(reinterpret_cast<CUdeviceptr>(offsetVoidPtr(
+ DeviceDst, DeviceDstByteOffset)),
+ reinterpret_cast<CUdeviceptr>(offsetVoidPtr(
+ DeviceSrc, DeviceSrcByteOffset)),
+ ByteCount),
+ "cuMemcpyDtoD");
+}
+
+Status CUDAPlatform::rawCopyDToH(const void *DeviceSrc,
+ ptrdiff_t DeviceSrcByteOffset, void *HostDst,
+ ptrdiff_t ByteCount) {
+ return getCUError(
+ cuMemcpyDtoH(HostDst, reinterpret_cast<CUdeviceptr>(
+ offsetVoidPtr(DeviceSrc, DeviceSrcByteOffset)),
+ ByteCount),
+ "cuMemcpyDtoH");
+}
+
+Status CUDAPlatform::rawCopyHToD(const void *HostSrc, void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount) {
+ return getCUError(cuMemcpyHtoD(reinterpret_cast<CUdeviceptr>(offsetVoidPtr(
+ DeviceDst, DeviceDstByteOffset)),
+ HostSrc, ByteCount),
+ "cuMemcpyHtoD");
+}
+
+Status CUDAPlatform::rawMemsetD(void *DeviceDst, ptrdiff_t ByteOffset,
+ ptrdiff_t ByteCount, char ByteValue) {
+ return getCUError(cuMemsetD8(reinterpret_cast<CUdeviceptr>(
+ offsetVoidPtr(DeviceDst, ByteOffset)),
+ ByteValue, ByteCount),
+ "cuMemsetD8");
+}
+
+Status CUDAPlatform::rawRegisterHostMem(const void *Memory,
+ ptrdiff_t ByteCount) {
+ unsigned int Flags = 0;
+ return getCUError(
+ cuMemHostRegister(const_cast<void *>(Memory), ByteCount, Flags),
+ "cuMemHostRegiser");
+}
+
+static void cudaUnregisterHostMemoryHandleDestructor(void *H) {
+ logCUWarning(cuMemHostUnregister(H), "cuMemHostUnregister");
+}
+
+HandleDestructor CUDAPlatform::getUnregisterHostMemoryHandleDestructor() {
+ return cudaUnregisterHostMemoryHandleDestructor;
+}
+
+Expected<void *> CUDAPlatform::rawMallocRegisteredH(ptrdiff_t ByteCount) {
+ unsigned int Flags = 0;
+ void *Memory;
+ if (CUresult Result = cuMemHostAlloc(&Memory, ByteCount, Flags))
+ return getCUError(Result, "cuMemHostAlloc");
+ return Memory;
+}
+
+static void cudaFreeHostMemoryHandleDestructor(void *H) {
+ logCUWarning(cuMemFreeHost(H), "cuMemFreeHost");
+}
+
+HandleDestructor CUDAPlatform::getFreeHostMemoryHandleDestructor() {
+ return cudaFreeHostMemoryHandleDestructor;
+}
+
+Status CUDAPlatform::asyncCopyDToD(const void *DeviceSrc,
+ ptrdiff_t DeviceSrcByteOffset,
+ void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount, void *Stream) {
+ return getCUError(
+ cuMemcpyDtoDAsync(reinterpret_cast<CUdeviceptr>(
+ offsetVoidPtr(DeviceDst, DeviceDstByteOffset)),
+ reinterpret_cast<CUdeviceptr>(
+ offsetVoidPtr(DeviceSrc, DeviceSrcByteOffset)),
+ ByteCount, static_cast<CUstream_st *>(Stream)),
+ "cuMemcpyDtoDAsync");
+}
+
+Status CUDAPlatform::asyncCopyDToH(const void *DeviceSrc,
+ ptrdiff_t DeviceSrcByteOffset, void *HostDst,
+ ptrdiff_t ByteCount, void *Stream) {
+ return getCUError(
+ cuMemcpyDtoHAsync(HostDst, reinterpret_cast<CUdeviceptr>(offsetVoidPtr(
+ DeviceSrc, DeviceSrcByteOffset)),
+ ByteCount, static_cast<CUstream_st *>(Stream)),
+ "cuMemcpyDtoHAsync");
+}
+
+Status CUDAPlatform::asyncCopyHToD(const void *HostSrc, void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount, void *Stream) {
+ return getCUError(
+ cuMemcpyHtoDAsync(reinterpret_cast<CUdeviceptr>(
+ offsetVoidPtr(DeviceDst, DeviceDstByteOffset)),
+ HostSrc, ByteCount, static_cast<CUstream_st *>(Stream)),
+ "cuMemcpyHtoDAsync");
+}
+
+Status CUDAPlatform::asyncMemsetD(void *DeviceDst, ptrdiff_t ByteOffset,
+ ptrdiff_t ByteCount, char ByteValue,
+ void *Stream) {
+ return getCUError(
+ cuMemsetD8Async(
+ reinterpret_cast<CUdeviceptr>(offsetVoidPtr(DeviceDst, ByteOffset)),
+ ByteValue, ByteCount, static_cast<CUstream_st *>(Stream)),
+ "cuMemsetD8Async");
+}
+
+struct StreamCallbackUserData {
+ StreamCallbackUserData(Stream &Stream, StreamCallback Function)
+ : TheStream(Stream), TheFunction(std::move(Function)) {}
+
+ Stream &TheStream;
+ StreamCallback TheFunction;
+};
+
+static void CUDA_CB cuStreamCallbackShim(CUstream HStream, CUresult Status,
+ void *UserData) {
+ std::unique_ptr<StreamCallbackUserData> Data(
+ static_cast<StreamCallbackUserData *>(UserData));
+ Stream &TheStream = Data->TheStream;
+ assert(static_cast<CUstream_st *>(TheStream) == HStream);
+ Data->TheFunction(TheStream,
+ getCUError(Status, "stream callback error state"));
+}
+
+Status CUDAPlatform::addStreamCallback(Stream &Stream,
+ StreamCallback Callback) {
+ // CUDA docs say flags must always be 0 here.
+ unsigned int Flags = 0u;
+ std::unique_ptr<StreamCallbackUserData> UserData(
+ new StreamCallbackUserData(Stream, std::move(Callback)));
+ return getCUError(cuStreamAddCallback(Stream, cuStreamCallbackShim,
+ UserData.release(), Flags),
+ "cuStreamAddCallback");
+}
+
+static void cudaDestroyProgram(void *H) {
+ logCUWarning(cuModuleUnload(static_cast<CUmod_st *>(H)), "cuModuleUnload");
+}
+
+Expected<Program>
+CUDAPlatform::createProgramFromSource(Span<const char> Source) {
+ CUmodule Module;
+ constexpr int LogBufferSizeBytes = 1024;
+ char InfoLogBuffer[LogBufferSizeBytes];
+ char ErrorLogBuffer[LogBufferSizeBytes];
+ constexpr size_t OptionsCount = 4;
+ std::array<CUjit_option, OptionsCount> OptionNames = {
+ {CU_JIT_INFO_LOG_BUFFER, CU_JIT_INFO_LOG_BUFFER_SIZE_BYTES,
+ CU_JIT_ERROR_LOG_BUFFER, CU_JIT_ERROR_LOG_BUFFER_SIZE_BYTES}};
+ std::array<void *, OptionsCount> OptionValues = {
+ {InfoLogBuffer, const_cast<int *>(&LogBufferSizeBytes), ErrorLogBuffer,
+ const_cast<int *>(&LogBufferSizeBytes)}};
+ if (CUresult Result =
+ cuModuleLoadDataEx(&Module, Source.data(), OptionsCount,
+ OptionNames.data(), OptionValues.data())) {
+ InfoLogBuffer[LogBufferSizeBytes - 1] = '\0';
+ ErrorLogBuffer[LogBufferSizeBytes - 1] = '\0';
+ std::ostringstream OutStream;
+ OutStream << "Error creating program from source: "
+ << getCUErrorMessage(Result)
+ << "\nINFO MESSAGES\n================\n"
+ << InfoLogBuffer << "\nERROR MESSAGES\n==================\n"
+ << ErrorLogBuffer;
+ return Status(OutStream.str());
+ }
+ return constructProgram(this, Module, cudaDestroyProgram);
+}
+
+Expected<void *> CUDAPlatform::rawCreateKernel(void *Program,
+ const std::string &Name) {
+ CUmodule Module = static_cast<CUmodule>(Program);
+ CUfunction Kernel;
+ if (CUresult Result = cuModuleGetFunction(&Kernel, Module, Name.c_str()))
+ return getCUError(Result, "cuModuleGetFunction");
+ return Kernel;
+}
+
+static void cudaDestroyKernel(void *) {
+ // Do nothing.
+}
+
+HandleDestructor CUDAPlatform::getKernelHandleDestructor() {
+ return cudaDestroyKernel;
+}
+
+Status CUDAPlatform::rawEnqueueKernelLaunch(
+ void *Stream, void *Kernel, KernelLaunchDimensions LaunchDimensions,
+ Span<void *> Arguments, Span<size_t>, size_t SharedMemoryBytes) {
+ return getCUError(
+ cuLaunchKernel(static_cast<CUfunction>(Kernel), LaunchDimensions.GridX,
+ LaunchDimensions.GridY, LaunchDimensions.GridZ,
+ LaunchDimensions.BlockX, LaunchDimensions.BlockY,
+ LaunchDimensions.BlockZ, SharedMemoryBytes,
+ static_cast<CUstream>(Stream), Arguments.data(), nullptr),
+ "cuLaunchKernel");
+}
+
+} // namespace
+
+namespace cuda {
+
+/// Gets the CUDAPlatform instance and returns it as an unowned pointer to a
+/// Platform.
+Expected<Platform *> getPlatform() {
+ static auto MaybePlatform = []() -> Expected<CUDAPlatform *> {
+ Expected<CUDAPlatform> CreationResult = CUDAPlatform::create();
+ if (CreationResult.isError())
+ return CreationResult.getError();
+ else
+ return new CUDAPlatform(CreationResult.takeValue());
+ }();
+ return MaybePlatform;
+}
+
+} // namespace cuda
+
+} // namespace acxxel
Added: parallel-libs/trunk/acxxel/customdoxygen.css
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/customdoxygen.css?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/customdoxygen.css (added)
+++ parallel-libs/trunk/acxxel/customdoxygen.css Tue Oct 25 15:18:56 2016
@@ -0,0 +1,20 @@
+body {
+ background-color: #e0e0eb;
+}
+
+div.header {
+ margin-left: auto;
+ margin-right: auto;
+ max-width: 60em;
+ padding-left: 2em;
+ padding-right: 2em;
+}
+
+div.contents {
+ margin-left: auto;
+ margin-right: auto;
+ max-width: 60em;
+ background-color: white;
+ padding: 2em;
+ border-radius: 1em;
+}
Added: parallel-libs/trunk/acxxel/examples/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/examples/CMakeLists.txt?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/examples/CMakeLists.txt (added)
+++ parallel-libs/trunk/acxxel/examples/CMakeLists.txt Tue Oct 25 15:18:56 2016
@@ -0,0 +1,12 @@
+set(CUDA_HOST_COMPILER gcc)
+set(CUDA_NVCC_FLAGS -std=c++11)
+
+if(ACXXEL_ENABLE_CUDA)
+cuda_add_executable(simple_example simple_example.cu)
+target_link_libraries(simple_example acxxel)
+endif()
+
+if(ACXXEL_ENABLE_OPENCL)
+add_executable(opencl_example opencl_example.cpp)
+target_link_libraries(opencl_example acxxel ${OpenCL_LIBRARIES})
+endif()
Added: parallel-libs/trunk/acxxel/examples/opencl_example.cpp
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/examples/opencl_example.cpp?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/examples/opencl_example.cpp (added)
+++ parallel-libs/trunk/acxxel/examples/opencl_example.cpp Tue Oct 25 15:18:56 2016
@@ -0,0 +1,70 @@
+//===--- opencl_example.cpp - Example of using Acxxel with OpenCL ---------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// This file is an example of using OpenCL with Acxxel.
+///
+//===----------------------------------------------------------------------===//
+
+#include "acxxel.h"
+
+#include <array>
+#include <cstdio>
+#include <cstring>
+
+static const char *SaxpyKernelSource = R"(
+__kernel void saxpyKernel(float A, __global float *X, __global float *Y, int N) {
+ int I = get_global_id(0);
+ if (I < N)
+ X[I] = A * X[I] + Y[I];
+}
+)";
+
+template <size_t N>
+void saxpy(float A, std::array<float, N> &X, const std::array<float, N> &Y) {
+ acxxel::Platform *OpenCL = acxxel::getOpenCLPlatform().getValue();
+ acxxel::Stream Stream = OpenCL->createStream().takeValue();
+ auto DeviceX = OpenCL->mallocD<float>(N).takeValue();
+ auto DeviceY = OpenCL->mallocD<float>(N).takeValue();
+ Stream.syncCopyHToD(X, DeviceX).syncCopyHToD(Y, DeviceY);
+ acxxel::Program Program =
+ OpenCL
+ ->createProgramFromSource(acxxel::Span<const char>(
+ SaxpyKernelSource, std::strlen(SaxpyKernelSource)))
+ .takeValue();
+ acxxel::Kernel Kernel = Program.createKernel("saxpyKernel").takeValue();
+ float *RawX = static_cast<float *>(DeviceX);
+ float *RawY = static_cast<float *>(DeviceY);
+ int IntLength = N;
+ void *Arguments[] = {&A, &RawX, &RawY, &IntLength};
+ size_t ArgumentSizes[] = {sizeof(float), sizeof(float *), sizeof(float *),
+ sizeof(int)};
+ acxxel::Status Status =
+ Stream.asyncKernelLaunch(Kernel, N, Arguments, ArgumentSizes)
+ .syncCopyDToH(DeviceX, X)
+ .sync();
+ if (Status.isError()) {
+ std::fprintf(stderr, "Error during saxpy: %s\n",
+ Status.getMessage().c_str());
+ std::exit(EXIT_FAILURE);
+ }
+}
+
+int main() {
+ float A = 2.f;
+ std::array<float, 3> X = {0.f, 1.f, 2.f};
+ std::array<float, 3> Y = {3.f, 4.f, 5.f};
+ std::array<float, 3> Expected = {3.f, 6.f, 9.f};
+ saxpy(A, X, Y);
+ for (int I = 0; I < 3; ++I)
+ if (X[I] != Expected[I]) {
+ std::fprintf(stderr, "Mismatch at position %d, %f != %f\n", I, X[I],
+ Expected[I]);
+ std::exit(EXIT_FAILURE);
+ }
+}
Added: parallel-libs/trunk/acxxel/examples/simple_example.cu
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/examples/simple_example.cu?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/examples/simple_example.cu (added)
+++ parallel-libs/trunk/acxxel/examples/simple_example.cu Tue Oct 25 15:18:56 2016
@@ -0,0 +1,110 @@
+//===--- simple_example.cu - Simple example of using Acxxel ---------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// This file is a simple example of using Acxxel.
+///
+//===----------------------------------------------------------------------===//
+
+/// [Example simple saxpy]
+#include "acxxel.h"
+
+#include <array>
+#include <cstdio>
+#include <cstdlib>
+
+// A standard CUDA kernel.
+__global__ void saxpyKernel(float A, float *X, float *Y, int N) {
+ int I = (blockDim.x * blockIdx.x) + threadIdx.x;
+ if (I < N)
+ X[I] = A * X[I] + Y[I];
+}
+
+// A host library wrapping the CUDA kernel. All Acxxel calls are in here.
+template <size_t N>
+void saxpy(float A, std::array<float, N> &X, const std::array<float, N> &Y) {
+ // Get the CUDA platform and make a CUDA stream.
+ acxxel::Platform *CUDA = acxxel::getCUDAPlatform().getValue();
+ acxxel::Stream Stream = CUDA->createStream().takeValue();
+
+ // Allocate space for device arrays.
+ auto DeviceX = CUDA->mallocD<float>(N).takeValue();
+ auto DeviceY = CUDA->mallocD<float>(N).takeValue();
+
+ // Copy X and Y out to the device.
+ Stream.syncCopyHToD(X, DeviceX).syncCopyHToD(Y, DeviceY);
+
+ // Launch the kernel using triple-chevron notation.
+ saxpyKernel<<<1, N, 0, Stream>>>(A, DeviceX, DeviceY, N);
+
+ // Copy the results back to the host.
+ acxxel::Status Status = Stream.syncCopyDToH(DeviceX, X).takeStatus();
+
+ // Check for any errors.
+ if (Status.isError()) {
+ std::fprintf(stderr, "Error performing acxxel saxpy: %s\n",
+ Status.getMessage().c_str());
+ std::exit(EXIT_FAILURE);
+ }
+}
+/// [Example simple saxpy]
+
+/// [Example CUDA simple saxpy]
+template <size_t N>
+void cudaSaxpy(float A, std::array<float, N> &X, std::array<float, N> &Y) {
+ // This size is needed all over the place, so give it a name.
+ constexpr size_t Size = N * sizeof(float);
+
+ // Allocate space for device arrays.
+ float *DeviceX;
+ float *DeviceY;
+ cudaMalloc(&DeviceX, Size);
+ cudaMalloc(&DeviceY, Size);
+
+ // Copy X and Y out to the device.
+ cudaMemcpy(DeviceX, X.data(), Size, cudaMemcpyHostToDevice);
+ cudaMemcpy(DeviceY, Y.data(), Size, cudaMemcpyHostToDevice);
+
+ // Launch the kernel using triple-chevron notation.
+ saxpyKernel<<<1, N>>>(A, DeviceX, DeviceY, N);
+
+ // Copy the results back to the host.
+ cudaMemcpy(X.data(), DeviceX, Size, cudaMemcpyDeviceToHost);
+
+ // Free resources.
+ cudaFree(DeviceX);
+ cudaFree(DeviceY);
+
+ // Check for any errors.
+ cudaError_t Error = cudaGetLastError();
+ if (Error) {
+ std::fprintf(stderr, "Error performing cudart saxpy: %s\n",
+ cudaGetErrorString(Error));
+ std::exit(EXIT_FAILURE);
+ }
+}
+/// [Example CUDA simple saxpy]
+
+template <typename F> void testSaxpy(F &&SaxpyFunction) {
+ float A = 2.f;
+ std::array<float, 3> X = {{0.f, 1.f, 2.f}};
+ std::array<float, 3> Y = {{3.f, 4.f, 5.f}};
+ std::array<float, 3> Expected = {{3.f, 6.f, 9.f}};
+ SaxpyFunction(A, X, Y);
+ for (int I = 0; I < 3; ++I)
+ if (X[I] != Expected[I]) {
+ std::fprintf(stderr, "Result mismatch at index %d, %f != %f\n", I, X[I],
+ Expected[I]);
+ std::exit(EXIT_FAILURE);
+ }
+}
+
+int main() {
+ testSaxpy(saxpy<3>);
+ testSaxpy(cudaSaxpy<3>);
+}
Added: parallel-libs/trunk/acxxel/opencl_acxxel.cpp
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/opencl_acxxel.cpp?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/opencl_acxxel.cpp (added)
+++ parallel-libs/trunk/acxxel/opencl_acxxel.cpp Tue Oct 25 15:18:56 2016
@@ -0,0 +1,620 @@
+//===--- opencl_acxxel.cpp - OpenCL implementation of the Acxxel API ------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// This file defines the standard OpenCL implementation of the Acxxel API.
+///
+//===----------------------------------------------------------------------===//
+
+#include "acxxel.h"
+
+#include "CL/cl.h"
+
+#include <mutex>
+#include <sstream>
+#include <utility>
+#include <vector>
+
+namespace acxxel {
+
+namespace {
+
+/// An ID containing the platform ID and the device ID within the platform.
+struct FullDeviceID {
+ cl_platform_id PlatformID;
+ cl_device_id DeviceID;
+
+ FullDeviceID(cl_platform_id PlatformID, cl_device_id DeviceID)
+ : PlatformID(PlatformID), DeviceID(DeviceID) {}
+};
+
+thread_local int ActiveDeviceIndex = 0;
+
+static std::string getOpenCLErrorMessage(cl_int Result) {
+ if (!Result)
+ return "success";
+ std::ostringstream OutStream;
+ OutStream << "OpenCL error: code = " << Result;
+ return OutStream.str();
+}
+
+static Status getOpenCLError(cl_int Result, const std::string &Message) {
+ if (!Result)
+ return Status();
+ std::ostringstream OutStream;
+ OutStream << getOpenCLErrorMessage(Result) << ", message = " << Message;
+ return Status(OutStream.str());
+}
+
+static void logOpenCLWarning(cl_int Result, const std::string &Message) {
+ if (Result) {
+ std::ostringstream OutStream;
+ OutStream << Message << ": " << getOpenCLErrorMessage(Result);
+ logWarning(OutStream.str());
+ }
+}
+
+class OpenCLPlatform : public Platform {
+public:
+ ~OpenCLPlatform() override = default;
+
+ static Expected<OpenCLPlatform> create();
+
+ Expected<int> getDeviceCount() override;
+
+ Status setActiveDeviceForThread(int DeviceIndex) override;
+
+ int getActiveDeviceForThread() override;
+
+ Expected<Stream> createStream() override;
+
+ Expected<Event> createEvent() override;
+
+ Expected<Program> createProgramFromSource(Span<const char> Source) override;
+
+protected:
+ Status streamSync(void *Stream) override;
+
+ Status streamWaitOnEvent(void *Stream, void *Event) override;
+
+ Expected<void *> rawMallocD(ptrdiff_t ByteCount) override;
+ HandleDestructor getDeviceMemoryHandleDestructor() override;
+ void *getDeviceMemorySpanHandle(void *BaseHandle, size_t ByteSize,
+ size_t ByteOffset) override;
+ void rawDestroyDeviceMemorySpanHandle(void *Handle) override;
+
+ Expected<void *> rawGetDeviceSymbolAddress(const void *Symbol) override;
+ Expected<ptrdiff_t> rawGetDeviceSymbolSize(const void *Symbol) override;
+
+ Status rawCopyDToD(const void *DeviceSrc, ptrdiff_t DeviceSrcByteOffset,
+ void *DeviceDst, ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount) override;
+ Status rawCopyDToH(const void *DeviceSrc, ptrdiff_t DeviceSrcByteOffset,
+ void *HostDst, ptrdiff_t ByteCount) override;
+ Status rawCopyHToD(const void *HostSrc, void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount) override;
+
+ Status rawMemsetD(void *DeviceDst, ptrdiff_t ByteOffset, ptrdiff_t ByteCount,
+ char ByteValue) override;
+
+ Status rawRegisterHostMem(const void *Memory, ptrdiff_t ByteCount) override;
+ HandleDestructor getUnregisterHostMemoryHandleDestructor() override;
+
+ Expected<void *> rawMallocRegisteredH(ptrdiff_t ByteCount) override;
+ HandleDestructor getFreeHostMemoryHandleDestructor() override;
+
+ Status asyncCopyDToD(const void *DeviceSrc, ptrdiff_t DeviceSrcByteOffset,
+ void *DeviceDst, ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount, void *Stream) override;
+ Status asyncCopyDToH(const void *DeviceSrc, ptrdiff_t DeviceSrcByteOffset,
+ void *HostDst, ptrdiff_t ByteCount,
+ void *Stream) override;
+ Status asyncCopyHToD(const void *HostSrc, void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset, ptrdiff_t ByteCount,
+ void *Stream) override;
+
+ Status asyncMemsetD(void *DeviceDst, ptrdiff_t ByteOffset,
+ ptrdiff_t ByteCount, char ByteValue,
+ void *Stream) override;
+
+ Status addStreamCallback(Stream &Stream, StreamCallback Callback) override;
+
+ Status enqueueEvent(void *Event, void *Stream) override;
+ bool eventIsDone(void *Event) override;
+ Status eventSync(void *Event) override;
+ Expected<float> getSecondsBetweenEvents(void *StartEvent,
+ void *EndEvent) override;
+
+ Expected<void *> rawCreateKernel(void *Program,
+ const std::string &Name) override;
+ HandleDestructor getKernelHandleDestructor() override;
+
+ Status rawEnqueueKernelLaunch(void *Stream, void *Kernel,
+ KernelLaunchDimensions LaunchDimensions,
+ Span<void *> Arguments,
+ Span<size_t> ArgumentSizes,
+ size_t SharedMemoryBytes) override;
+
+private:
+ OpenCLPlatform(std::vector<FullDeviceID> &&FullDeviceIDs,
+ std::vector<cl_context> &&Contexts,
+ std::vector<cl_command_queue> &&CommandQueues)
+ : FullDeviceIDs(std::move(FullDeviceIDs)), Contexts(std::move(Contexts)),
+ CommandQueues(std::move(CommandQueues)) {}
+
+ std::vector<FullDeviceID> FullDeviceIDs;
+ std::vector<cl_context> Contexts;
+ std::vector<cl_command_queue> CommandQueues;
+};
+
+Expected<OpenCLPlatform> OpenCLPlatform::create() {
+ constexpr cl_uint MaxNumEntries = 100;
+ cl_platform_id Platforms[MaxNumEntries];
+ cl_uint NumPlatforms;
+ if (cl_int Result = clGetPlatformIDs(MaxNumEntries, Platforms, &NumPlatforms))
+ return getOpenCLError(Result, "clGetPlatformIDs");
+
+ std::vector<FullDeviceID> FullDeviceIDs;
+ for (cl_uint PlatformIndex = 0; PlatformIndex < NumPlatforms;
+ ++PlatformIndex) {
+ cl_uint NumDevices;
+ cl_device_id Devices[MaxNumEntries];
+ if (cl_int Result =
+ clGetDeviceIDs(Platforms[PlatformIndex], CL_DEVICE_TYPE_ALL,
+ MaxNumEntries, Devices, &NumDevices))
+ return getOpenCLError(Result, "clGetDeviceIDs");
+ for (cl_uint DeviceIndex = 0; DeviceIndex < NumDevices; ++DeviceIndex)
+ FullDeviceIDs.emplace_back(Platforms[PlatformIndex],
+ Devices[DeviceIndex]);
+ }
+
+ if (FullDeviceIDs.empty())
+ return Status("No OpenCL device available on this system.");
+
+ std::vector<cl_context> Contexts(FullDeviceIDs.size());
+ std::vector<cl_command_queue> CommandQueues(FullDeviceIDs.size());
+ for (size_t I = 0; I < FullDeviceIDs.size(); ++I) {
+ cl_int CreateContextResult;
+ Contexts[I] = clCreateContext(nullptr, 1, &FullDeviceIDs[I].DeviceID,
+ nullptr, nullptr, &CreateContextResult);
+ if (CreateContextResult)
+ return getOpenCLError(CreateContextResult, "clCreateContext");
+
+ cl_int CreateCommandQueueResult;
+ CommandQueues[I] = clCreateCommandQueue(
+ Contexts[I], FullDeviceIDs[I].DeviceID, CL_QUEUE_PROFILING_ENABLE,
+ &CreateCommandQueueResult);
+ if (CreateCommandQueueResult)
+ return getOpenCLError(CreateCommandQueueResult, "clCreateCommandQueue");
+ }
+
+ return OpenCLPlatform(std::move(FullDeviceIDs), std::move(Contexts),
+ std::move(CommandQueues));
+}
+
+Expected<int> OpenCLPlatform::getDeviceCount() { return FullDeviceIDs.size(); }
+
+Status OpenCLPlatform::setActiveDeviceForThread(int DeviceIndex) {
+ if (static_cast<size_t>(DeviceIndex) >= FullDeviceIDs.size())
+ return Status("Could not set active device index to " +
+ std::to_string(DeviceIndex) + " because there are only " +
+ std::to_string(FullDeviceIDs.size()) +
+ " devices in the system");
+ ActiveDeviceIndex = DeviceIndex;
+ return Status();
+}
+
+int OpenCLPlatform::getActiveDeviceForThread() { return ActiveDeviceIndex; }
+
+static void openCLDestroyStream(void *H) {
+ logOpenCLWarning(clReleaseCommandQueue(static_cast<cl_command_queue>(H)),
+ "clReleaseCommandQueue");
+}
+
+Expected<Stream> OpenCLPlatform::createStream() {
+ cl_int Result;
+ cl_command_queue Queue = clCreateCommandQueue(
+ Contexts[ActiveDeviceIndex], FullDeviceIDs[ActiveDeviceIndex].DeviceID,
+ CL_QUEUE_PROFILING_ENABLE, &Result);
+ if (Result)
+ return getOpenCLError(Result, "clCreateCommandQueue");
+ return constructStream(this, Queue, openCLDestroyStream);
+}
+
+static void openCLEventDestroy(void *H) {
+ cl_event *CLEvent = static_cast<cl_event *>(H);
+ logOpenCLWarning(clReleaseEvent(*CLEvent), "clReleaseEvent");
+ delete CLEvent;
+}
+
+Status OpenCLPlatform::streamSync(void *Stream) {
+ return getOpenCLError(clFinish(static_cast<cl_command_queue>(Stream)),
+ "clFinish");
+}
+
+Status OpenCLPlatform::streamWaitOnEvent(void *Stream, void *Event) {
+ cl_event *CLEvent = static_cast<cl_event *>(Event);
+ return getOpenCLError(
+ clEnqueueBarrierWithWaitList(static_cast<cl_command_queue>(Stream), 1,
+ CLEvent, nullptr),
+ "clEnqueueMarkerWithWaitList");
+}
+
+Expected<Event> OpenCLPlatform::createEvent() {
+ cl_int Result;
+ cl_event Event = clCreateUserEvent(Contexts[ActiveDeviceIndex], &Result);
+ if (Result)
+ return getOpenCLError(Result, "clCreateUserEvent");
+ if (cl_int Result = clSetUserEventStatus(Event, CL_COMPLETE))
+ return getOpenCLError(Result, "clSetUserEventStatus");
+ return constructEvent(this, new cl_event(Event), openCLEventDestroy);
+}
+
+static void openCLDestroyProgram(void *H) {
+ logOpenCLWarning(clReleaseProgram(static_cast<cl_program>(H)),
+ "clReleaseProgram");
+}
+
+Expected<Program>
+OpenCLPlatform::createProgramFromSource(Span<const char> Source) {
+ cl_int Error;
+ const char *CSource = Source.data();
+ size_t SourceSize = Source.size();
+ cl_program Program = clCreateProgramWithSource(Contexts[ActiveDeviceIndex], 1,
+ &CSource, &SourceSize, &Error);
+ if (Error)
+ return getOpenCLError(Error, "clCreateProgramWithSource");
+ cl_device_id DeviceID = FullDeviceIDs[ActiveDeviceIndex].DeviceID;
+ if (cl_int Error =
+ clBuildProgram(Program, 1, &DeviceID, nullptr, nullptr, nullptr))
+ return getOpenCLError(Error, "clBuildProgram");
+ return constructProgram(this, Program, openCLDestroyProgram);
+}
+
+Expected<void *> OpenCLPlatform::rawMallocD(ptrdiff_t ByteCount) {
+ cl_int Result;
+ cl_mem Memory = clCreateBuffer(Contexts[ActiveDeviceIndex], CL_MEM_READ_WRITE,
+ ByteCount, nullptr, &Result);
+ if (Result)
+ return getOpenCLError(Result, "clCreateBuffer");
+ return reinterpret_cast<void *>(Memory);
+}
+
+static void openCLDestroyDeviceMemory(void *H) {
+ logOpenCLWarning(clReleaseMemObject(static_cast<cl_mem>(H)),
+ "clReleaseMemObject");
+}
+
+HandleDestructor OpenCLPlatform::getDeviceMemoryHandleDestructor() {
+ return openCLDestroyDeviceMemory;
+}
+
+void *OpenCLPlatform::getDeviceMemorySpanHandle(void *BaseHandle,
+ size_t ByteSize,
+ size_t ByteOffset) {
+ cl_int Error;
+ cl_buffer_region Region;
+ Region.origin = ByteOffset;
+ Region.size = ByteSize;
+ cl_mem SubBuffer =
+ clCreateSubBuffer(static_cast<cl_mem>(BaseHandle), 0,
+ CL_BUFFER_CREATE_TYPE_REGION, &Region, &Error);
+ logOpenCLWarning(Error, "clCreateSubBuffer");
+ if (Error)
+ return nullptr;
+ return SubBuffer;
+}
+
+void OpenCLPlatform::rawDestroyDeviceMemorySpanHandle(void *Handle) {
+ openCLDestroyDeviceMemory(Handle);
+}
+
+Expected<void *>
+OpenCLPlatform::rawGetDeviceSymbolAddress(const void * /*Symbol*/) {
+ // This doesn't seem to have any equivalent in OpenCL.
+ return Status("not implemented");
+}
+
+Expected<ptrdiff_t>
+OpenCLPlatform::rawGetDeviceSymbolSize(const void * /*Symbol*/) {
+ // This doesn't seem to have any equivalent in OpenCL.
+ return Status("not implemented");
+}
+
+Status OpenCLPlatform::rawCopyDToD(const void *DeviceSrc,
+ ptrdiff_t DeviceSrcByteOffset,
+ void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount) {
+ cl_event DoneEvent;
+ if (cl_int Result = clEnqueueCopyBuffer(
+ CommandQueues[ActiveDeviceIndex],
+ static_cast<cl_mem>(const_cast<void *>(DeviceSrc)),
+ static_cast<cl_mem>(DeviceDst), DeviceSrcByteOffset,
+ DeviceDstByteOffset, ByteCount, 0, nullptr, &DoneEvent))
+ return getOpenCLError(Result, "clEnqueueCopyBuffer");
+ return getOpenCLError(clWaitForEvents(1, &DoneEvent), "clWaitForEvents");
+}
+
+Status OpenCLPlatform::rawCopyDToH(const void *DeviceSrc,
+ ptrdiff_t DeviceSrcByteOffset, void *HostDst,
+ ptrdiff_t ByteCount) {
+ cl_event DoneEvent;
+ if (cl_int Result = clEnqueueReadBuffer(
+ CommandQueues[ActiveDeviceIndex],
+ static_cast<cl_mem>(const_cast<void *>(DeviceSrc)), CL_TRUE,
+ DeviceSrcByteOffset, ByteCount, HostDst, 0, nullptr, &DoneEvent))
+ return getOpenCLError(Result, "clEnqueueReadBuffer");
+ return getOpenCLError(clWaitForEvents(1, &DoneEvent), "clWaitForEvents");
+}
+
+Status OpenCLPlatform::rawCopyHToD(const void *HostSrc, void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount) {
+ cl_event DoneEvent;
+ if (cl_int Result = clEnqueueWriteBuffer(
+ CommandQueues[ActiveDeviceIndex], static_cast<cl_mem>(DeviceDst),
+ CL_TRUE, DeviceDstByteOffset, ByteCount, HostSrc, 0, nullptr,
+ &DoneEvent))
+ return getOpenCLError(Result, "clEnqueueWriteBuffer");
+ return getOpenCLError(clWaitForEvents(1, &DoneEvent), "clWaitForEvents");
+}
+
+Status OpenCLPlatform::rawMemsetD(void *DeviceDst, ptrdiff_t ByteOffset,
+ ptrdiff_t ByteCount, char ByteValue) {
+ cl_event DoneEvent;
+ if (cl_int Result = clEnqueueFillBuffer(
+ CommandQueues[ActiveDeviceIndex], static_cast<cl_mem>(DeviceDst),
+ &ByteValue, 1, ByteOffset, ByteCount, 0, nullptr, &DoneEvent))
+ return getOpenCLError(Result, "clEnqueueFillBuffer");
+ return getOpenCLError(clWaitForEvents(1, &DoneEvent), "clWaitForEvents");
+}
+
+static void noOpHandleDestructor(void *) {}
+
+Status OpenCLPlatform::rawRegisterHostMem(const void * /*Memory*/,
+ ptrdiff_t /*ByteCount*/) {
+ // TODO(jhen): Do we want to do something to pin the memory here?
+ return Status();
+}
+
+HandleDestructor OpenCLPlatform::getUnregisterHostMemoryHandleDestructor() {
+ // TODO(jhen): Do we want to unpin the memory here?
+ return noOpHandleDestructor;
+}
+
+Expected<void *> OpenCLPlatform::rawMallocRegisteredH(ptrdiff_t ByteCount) {
+ // TODO(jhen): Do we want to do something to pin the memory here?
+ return std::malloc(ByteCount);
+}
+
+static void freeMemoryHandleDestructor(void *Memory) {
+ // TODO(jhen): Do we want to unpin the memory here?
+ std::free(Memory);
+}
+
+HandleDestructor OpenCLPlatform::getFreeHostMemoryHandleDestructor() {
+ return freeMemoryHandleDestructor;
+}
+
+Status OpenCLPlatform::asyncCopyDToD(const void *DeviceSrc,
+ ptrdiff_t DeviceSrcByteOffset,
+ void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount, void *Stream) {
+ return getOpenCLError(
+ clEnqueueCopyBuffer(static_cast<cl_command_queue>(Stream),
+ static_cast<cl_mem>(const_cast<void *>(DeviceSrc)),
+ static_cast<cl_mem>(DeviceDst), DeviceSrcByteOffset,
+ DeviceDstByteOffset, ByteCount, 0, nullptr, nullptr),
+ "clEnqueueCopyBuffer");
+}
+
+Status OpenCLPlatform::asyncCopyDToH(const void *DeviceSrc,
+ ptrdiff_t DeviceSrcByteOffset,
+ void *HostDst, ptrdiff_t ByteCount,
+ void *Stream) {
+ return getOpenCLError(
+ clEnqueueReadBuffer(static_cast<cl_command_queue>(Stream),
+ static_cast<cl_mem>(const_cast<void *>(DeviceSrc)),
+ CL_TRUE, DeviceSrcByteOffset, ByteCount, HostDst, 0,
+ nullptr, nullptr),
+ "clEnqueueReadBuffer");
+}
+
+Status OpenCLPlatform::asyncCopyHToD(const void *HostSrc, void *DeviceDst,
+ ptrdiff_t DeviceDstByteOffset,
+ ptrdiff_t ByteCount, void *Stream) {
+ return getOpenCLError(
+ clEnqueueWriteBuffer(static_cast<cl_command_queue>(Stream),
+ static_cast<cl_mem>(DeviceDst), CL_TRUE,
+ DeviceDstByteOffset, ByteCount, HostSrc, 0, nullptr,
+ nullptr),
+ "clEnqueueWriteBuffer");
+}
+
+Status OpenCLPlatform::asyncMemsetD(void *DeviceDst, ptrdiff_t ByteOffset,
+ ptrdiff_t ByteCount, char ByteValue,
+ void *Stream) {
+ return getOpenCLError(
+ clEnqueueFillBuffer(static_cast<cl_command_queue>(Stream),
+ static_cast<cl_mem>(DeviceDst), &ByteValue, 1,
+ ByteOffset, ByteCount, 0, nullptr, nullptr),
+ "clEnqueueFillBuffer");
+}
+
+struct StreamCallbackUserData {
+ StreamCallbackUserData(Stream &TheStream, StreamCallback Function,
+ cl_event EndEvent)
+ : TheStream(TheStream), TheFunction(std::move(Function)),
+ EndEvent(EndEvent) {}
+
+ Stream &TheStream;
+ StreamCallback TheFunction;
+ cl_event EndEvent;
+};
+
+// A function with the right signature to pass to clSetEventCallback.
+void CL_CALLBACK openCLStreamCallbackShim(cl_event,
+ cl_int EventCommandExecStatus,
+ void *UserData) {
+ std::unique_ptr<StreamCallbackUserData> Data(
+ static_cast<StreamCallbackUserData *>(UserData));
+ Data->TheFunction(
+ Data->TheStream,
+ getOpenCLError(EventCommandExecStatus, "stream callback error state"));
+ if (cl_int Result = clSetUserEventStatus(Data->EndEvent, CL_COMPLETE))
+ logOpenCLWarning(Result, "clSetUserEventStatus");
+ if (cl_int Result = clReleaseEvent(Data->EndEvent))
+ logOpenCLWarning(Result, "clReleaseEvent");
+}
+
+Status OpenCLPlatform::addStreamCallback(Stream &TheStream,
+ StreamCallback Callback) {
+ cl_int Result;
+ cl_event StartEvent = clCreateUserEvent(Contexts[ActiveDeviceIndex], &Result);
+ if (Result)
+ return getOpenCLError(Result, "clCreateUserEvent");
+ cl_event EndEvent = clCreateUserEvent(Contexts[ActiveDeviceIndex], &Result);
+ if (Result)
+ return getOpenCLError(Result, "clCreateUserEvent");
+ cl_event StartBarrierEvent;
+ if (cl_int Result = clEnqueueBarrierWithWaitList(
+ static_cast<cl_command_queue>(getStreamHandle(TheStream)), 1,
+ &StartEvent, &StartBarrierEvent))
+ return getOpenCLError(Result, "clEnqueueBarrierWithWaitList");
+
+ if (cl_int Result = clEnqueueBarrierWithWaitList(
+ static_cast<cl_command_queue>(getStreamHandle(TheStream)), 1,
+ &EndEvent, nullptr))
+ return getOpenCLError(Result, "clEnqueueBarrierWithWaitList");
+
+ std::unique_ptr<StreamCallbackUserData> UserData(
+ new StreamCallbackUserData(TheStream, std::move(Callback), EndEvent));
+ if (cl_int Result =
+ clSetEventCallback(StartBarrierEvent, CL_RUNNING,
+ openCLStreamCallbackShim, UserData.release()))
+ return getOpenCLError(Result, "clSetEventCallback");
+
+ if (cl_int Result = clSetUserEventStatus(StartEvent, CL_COMPLETE))
+ return getOpenCLError(Result, "clSetUserEventStatus");
+
+ if (cl_int Result = clReleaseEvent(StartBarrierEvent))
+ return getOpenCLError(Result, "clReleaseEvent");
+
+ return getOpenCLError(clReleaseEvent(StartEvent), "clReleaseEvent");
+}
+
+Status OpenCLPlatform::enqueueEvent(void *Event, void *Stream) {
+ cl_event *CLEvent = static_cast<cl_event *>(Event);
+ cl_event OldEvent = *CLEvent;
+ cl_event NewEvent;
+ if (cl_int Result = clEnqueueMarkerWithWaitList(
+ static_cast<cl_command_queue>(Stream), 0, nullptr, &NewEvent))
+ return getOpenCLError(Result, "clEnqueueMarkerWithWaitList");
+ *CLEvent = NewEvent;
+ return getOpenCLError(clReleaseEvent(OldEvent), "clReleaseEvent");
+}
+
+bool OpenCLPlatform::eventIsDone(void *Event) {
+ cl_event *CLEvent = static_cast<cl_event *>(Event);
+ cl_int EventStatus;
+ logOpenCLWarning(clGetEventInfo(*CLEvent, CL_EVENT_COMMAND_EXECUTION_STATUS,
+ sizeof(EventStatus), &EventStatus, nullptr),
+ "clGetEventInfo");
+ return EventStatus == CL_COMPLETE || EventStatus < 0;
+}
+
+Status OpenCLPlatform::eventSync(void *Event) {
+ cl_event *CLEvent = static_cast<cl_event *>(Event);
+ return getOpenCLError(clWaitForEvents(1, CLEvent), "clWaitForEvents");
+}
+
+Expected<float> OpenCLPlatform::getSecondsBetweenEvents(void *StartEvent,
+ void *EndEvent) {
+ cl_event *CLStartEvent = static_cast<cl_event *>(StartEvent);
+ cl_event *CLEndEvent = static_cast<cl_event *>(EndEvent);
+
+ cl_profiling_info ParamName = CL_PROFILING_COMMAND_END;
+ cl_ulong StartNanoseconds;
+ cl_ulong EndNanoseconds;
+ if (cl_int Result =
+ clGetEventProfilingInfo(*CLStartEvent, ParamName, sizeof(cl_ulong),
+ &StartNanoseconds, nullptr))
+ return getOpenCLError(Result, "clGetEventProfilingInfo");
+ if (cl_int Result = clGetEventProfilingInfo(
+ *CLEndEvent, ParamName, sizeof(cl_ulong), &EndNanoseconds, nullptr))
+ return getOpenCLError(Result, "clGetEventProfilingInfo");
+ return (EndNanoseconds - StartNanoseconds) * 1e-12;
+}
+
+Expected<void *> OpenCLPlatform::rawCreateKernel(void *Program,
+ const std::string &Name) {
+
+ cl_int Error;
+ cl_kernel Kernel =
+ clCreateKernel(static_cast<cl_program>(Program), Name.c_str(), &Error);
+ if (Error)
+ return getOpenCLError(Error, "clCreateKernel");
+ return Kernel;
+}
+
+static void openCLDestroyKernel(void *H) {
+ logOpenCLWarning(clReleaseKernel(static_cast<cl_kernel>(H)),
+ "clReleaseKernel");
+}
+
+HandleDestructor OpenCLPlatform::getKernelHandleDestructor() {
+ return openCLDestroyKernel;
+}
+
+Status OpenCLPlatform::rawEnqueueKernelLaunch(
+ void *Stream, void *Kernel, KernelLaunchDimensions LaunchDimensions,
+ Span<void *> Arguments, Span<size_t> ArgumentSizes,
+ size_t SharedMemoryBytes) {
+ if (SharedMemoryBytes != 0)
+ return Status("OpenCL kernel launches only accept zero for the shared "
+ "memory byte size");
+ cl_kernel TheKernel = static_cast<cl_kernel>(Kernel);
+ for (int I = 0; I < Arguments.size(); ++I)
+ if (cl_int Error =
+ clSetKernelArg(TheKernel, I, ArgumentSizes[I], Arguments[I]))
+ return getOpenCLError(Error, "clSetKernelArg");
+ size_t LocalWorkSize[] = {LaunchDimensions.BlockX, LaunchDimensions.BlockY,
+ LaunchDimensions.BlockZ};
+ size_t GlobalWorkSize[] = {LaunchDimensions.BlockX * LaunchDimensions.GridX,
+ LaunchDimensions.BlockY * LaunchDimensions.GridY,
+ LaunchDimensions.BlockZ * LaunchDimensions.GridZ};
+ return getOpenCLError(
+ clEnqueueNDRangeKernel(static_cast<cl_command_queue>(Stream), TheKernel,
+ 3, nullptr, GlobalWorkSize, LocalWorkSize, 0,
+ nullptr, nullptr),
+ "clEnqueueNDRangeKernel");
+}
+
+} // namespace
+
+namespace opencl {
+
+/// Gets an OpenCLPlatform instance and returns it as an unowned pointer to a
+/// Platform.
+Expected<Platform *> getPlatform() {
+ static auto MaybePlatform = []() -> Expected<OpenCLPlatform *> {
+ Expected<OpenCLPlatform> CreationResult = OpenCLPlatform::create();
+ if (CreationResult.isError())
+ return CreationResult.getError();
+ else
+ return new OpenCLPlatform(CreationResult.takeValue());
+ }();
+ return MaybePlatform;
+}
+
+} // namespace opencl
+
+} // namespace acxxel
Added: parallel-libs/trunk/acxxel/span.h
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/span.h?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/span.h (added)
+++ parallel-libs/trunk/acxxel/span.h Tue Oct 25 15:18:56 2016
@@ -0,0 +1,222 @@
+//===--- span- The span class -----------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef ACXXEL_SPAN_H
+#define ACXXEL_SPAN_H
+
+#include <array>
+#include <cstddef>
+#include <exception>
+#include <iterator>
+#include <type_traits>
+
+namespace acxxel {
+
+/// Value used to indicate slicing to the end of the span.
+static constexpr std::ptrdiff_t dynamic_extent = -1; // NOLINT
+
+class SpanBase {};
+
+/// Implementation of the proposed C++17 std::span class.
+///
+/// Based on the paper:
+/// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0122r1.pdf
+template <typename ElementType> class Span : public SpanBase {
+public:
+ /// \name constants and types
+ /// \{
+
+ using element_type = ElementType;
+ using index_type = std::ptrdiff_t;
+ using pointer = element_type *;
+ using reference = element_type &;
+ using iterator = element_type *;
+ using const_iterator = const element_type *;
+ using value_type = typename std::remove_const<element_type>::type;
+
+ /// \}
+
+ /// \name constructors, copy, assignment, and destructor.
+ /// \{
+
+ /// Constructs an empty span with null pointer data.
+ Span() : Data(nullptr), Size(0) {}
+
+ /// Constructs an empty span with null pointer data.
+ // Intentionally implicit.
+ Span(std::nullptr_t) : Data(nullptr), Size(0) {}
+
+ /// Constructs a span from a pointer and element count.
+ Span(pointer Ptr, index_type Count) : Data(Ptr), Size(Count) {
+ if (Count < 0 || (!Ptr && Count))
+ std::terminate();
+ }
+
+ /// Constructs a span from a pointer to the fist element in the range and a
+ /// pointer to one past the last element in the range.
+ Span(pointer FirstElem, pointer LastElem)
+ : Data(FirstElem), Size(std::distance(FirstElem, LastElem)) {
+ if (Size < 0)
+ std::terminate();
+ }
+
+ /// Constructs a span from an array.
+ // Intentionally implicit.
+ template <typename T, size_t N> Span(T (&Arr)[N]) : Data(Arr), Size(N) {}
+
+ /// Constructs a span from a std::array.
+ // Intentionally implicit.
+ template <size_t N>
+ Span(const std::array<typename std::remove_const<element_type>::type, N> &Arr)
+ : Data(Arr.data()), Size(N) {}
+
+ /// Constructs a span from a container such as a std::vector.
+ // TODO(jhen): Put in a check to make sure this constructor does not
+ // participate in overload resolution unless Container meets the following
+ // requirements:
+ // * Container is a contiguous container and a sequence container.
+ // Intentionally implicit.
+ template <typename Container>
+ Span(Container &Cont,
+ typename std::enable_if<
+ std::is_same<
+ typename std::remove_const<typename Container::value_type>::type,
+ typename std::remove_const<element_type>::type>::value &&
+ !std::is_array<Container>::value &&
+ !std::is_base_of<SpanBase, Container>::value &&
+ std::is_convertible<decltype(&Cont[0]), pointer>::value>::type * =
+ nullptr)
+ : Data(Cont.data()), Size(Cont.size()) {}
+
+ /// Avoids creating spans from expiring temporary objects.
+ // TODO(jhen): Put in a check to make sure this constructor does not
+ // participate in overload resolution unless Container meets the following
+ // requirements:
+ // * Container is a contiguous container and a sequence container.
+ template <typename Container>
+ Span(Container &&Cont,
+ typename std::enable_if<
+ std::is_same<
+ typename std::remove_const<typename Container::value_type>::type,
+ typename std::remove_const<element_type>::type>::value &&
+ !std::is_array<Container>::value &&
+ !std::is_base_of<SpanBase, Container>::value &&
+ std::is_convertible<decltype(&Cont[0]), pointer>::value>::type * =
+ nullptr) = delete;
+
+ Span(const Span &) noexcept = default;
+ Span(Span &&) noexcept;
+
+ /// Constructs a span from copying a span of another type that can be
+ /// implicitly converted to the type stored by the constructed span.
+ // Intentionally implicit.
+ template <typename OtherElementType>
+ Span(const Span<OtherElementType> &Other)
+ : Data(Other.Data), Size(Other.Size) {}
+
+ /// Constructs a span from moving a span of another type that can be
+ /// implicitly converted to the type stored by the constructed span.
+ // Intentionally implicit.
+ template <typename OtherElementType>
+ Span(Span<OtherElementType> &&Other) : Data(Other.Data), Size(Other.Size) {}
+
+ ~Span() = default;
+
+ Span &operator=(const Span &) noexcept = default;
+ Span &operator=(Span &&) noexcept;
+
+ /// \}
+
+ /// \name subviews
+ /// \{
+
+ /// Creates a span out of the first Count elements of this span.
+ Span<element_type> first(index_type Count) const {
+ bool Valid = Count >= 0 && Count <= size();
+ if (!Valid)
+ std::terminate();
+ return Span<element_type>(data(), Count);
+ }
+
+ /// Creates a span out of the last Count elements of this span.
+ Span<element_type> last(index_type Count) const {
+ bool Valid = Count >= 0 && Count <= size();
+ if (!Valid)
+ std::terminate();
+ return Span<element_type>(Count == 0 ? data() : data() + (size() - Count),
+ Count);
+ }
+
+ /// Creates a span out of the Count elements of this span beginning at Offset.
+ ///
+ /// If no arguments is provided for Count, the new span will extend to the end
+ /// of the current span.
+ Span<element_type> subspan(index_type Offset,
+ index_type Count = dynamic_extent) const {
+ bool Valid =
+ (Offset == 0 || (Offset > 0 && Offset <= size())) &&
+ (Count == dynamic_extent || (Count >= 0 && Offset + Count <= size()));
+ if (!Valid)
+ std::terminate();
+ return Span<element_type>(
+ data() + Offset, Count == dynamic_extent ? size() - Offset : Count);
+ }
+
+ /// \}
+
+ /// \name observers
+ /// \{
+
+ index_type length() const { return Size; }
+ index_type size() const { return Size; }
+ bool empty() const { return size() == 0; }
+
+ /// \}
+
+ /// \name element access
+ /// \{
+
+ reference operator[](index_type Idx) const {
+ bool Valid = Idx >= 0 && Idx < size();
+ if (!Valid)
+ std::terminate();
+ return Data[Idx];
+ }
+
+ reference operator()(index_type Idx) const { return operator[](Idx); }
+
+ pointer data() const noexcept { return Data; }
+
+ /// \}
+
+ /// \name iterator support
+ /// \{
+
+ iterator begin() const noexcept { return Data; }
+ iterator end() const noexcept { return Data + Size; }
+ const_iterator cbegin() const noexcept { return Data; }
+ const_iterator cend() const noexcept { return Data + Size; }
+
+ /// \}
+
+private:
+ template <typename OtherElementType> friend class Span;
+
+ pointer Data;
+ index_type Size;
+};
+
+template <typename ElementType>
+Span<ElementType>::Span(Span &&) noexcept = default;
+template <typename ElementType>
+Span<ElementType> &Span<ElementType>::operator=(Span &&) noexcept = default;
+
+} // namespace acxxel
+
+#endif // ACXXEL_SPAN_H
Added: parallel-libs/trunk/acxxel/status.h
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/status.h?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/status.h (added)
+++ parallel-libs/trunk/acxxel/status.h Tue Oct 25 15:18:56 2016
@@ -0,0 +1,236 @@
+//===--- status.h - Status and Expected classes -----------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef ACXXEL_STATUS_H
+#define ACXXEL_STATUS_H
+
+#include <cassert>
+#include <string>
+
+// The clang compiler supports annotating class declarations with the
+// warn_unused_result attribute, and this has the meaning that whenever that
+// type is returned from a function, the function is marked as
+// warn_unused_result.
+//
+// The gcc compiler does not support warn_unused_result for classes, only for
+// functions, so we only use this feature with clang.
+#ifdef __clang__
+#define ACXXEL_WARN_UNUSED_RESULT_TYPE __attribute__((warn_unused_result))
+#else
+#define ACXXEL_WARN_UNUSED_RESULT_TYPE
+#endif
+
+namespace acxxel {
+
+/// Status type.
+///
+/// May represent failure with a string error message, or may indicate success.
+class ACXXEL_WARN_UNUSED_RESULT_TYPE Status {
+public:
+ /// Creates a Status representing success.
+ Status() : HasMessage(false) {}
+
+ /// Creates a Status representing failure with the given error message.
+ explicit Status(const std::string &Message)
+ : HasMessage(true), Message(Message) {}
+
+ Status(const Status &) = default;
+
+ Status &operator=(const Status &) = default;
+
+ Status(Status &&) noexcept = default;
+
+ // Cannot use default because the move assignment operator for std::string is
+ // not marked noexcept.
+ Status &operator=(Status &&That) noexcept {
+ HasMessage = That.HasMessage;
+ Message = std::move(That.Message);
+ return *this;
+ }
+
+ ~Status() = default;
+
+ /// Returns true if this Status represents failure. Otherwise, returns false.
+ bool isError() const { return HasMessage; }
+
+ /// Returns true if this Status represents success. Otherwise, returns false.
+ operator bool() const { return !HasMessage; }
+
+ /// Gets a reference to the error message for this Status.
+ ///
+ /// Should only be called if isError() returns true.
+ const std::string &getMessage() const { return Message; }
+
+private:
+ bool HasMessage;
+ std::string Message;
+};
+
+class ExpectedBase {
+protected:
+ enum class State {
+ SUCCESS,
+ FAILURE,
+ MOVED,
+ };
+};
+
+/// Either a value of type T or a Status representing failure.
+template <typename T> class Expected : public ExpectedBase {
+public:
+ /// Creates an Expected representing failure with the given Error status.
+ // Intentionally implicit.
+ Expected(Status AnError)
+ : TheState(State::FAILURE), TheError(std::move(AnError)) {
+ assert(AnError.isError() && "constructing an error Expected value from a "
+ "success status is not allowed");
+ }
+
+ /// Creates an Expected representing success with the given value.
+ // Intentionally implicit.
+ Expected(T Value) : TheState(State::SUCCESS), TheValue(std::move(Value)) {}
+
+ Expected(const Expected &That) : TheState(That.TheState) {
+ switch (TheState) {
+ case State::SUCCESS:
+ new (&TheValue) T(That.TheValue);
+ break;
+ case State::FAILURE:
+ new (&TheError) Status(That.TheError);
+ break;
+ case State::MOVED:
+ // Nothing to do in this case.
+ break;
+ }
+ }
+
+ Expected &operator=(Expected That) {
+ TheState = That.TheState;
+ switch (TheState) {
+ case State::SUCCESS:
+ new (&TheValue) T(std::move(That.TheValue));
+ break;
+ case State::FAILURE:
+ new (&TheError) Status(std::move(That.TheError));
+ break;
+ case State::MOVED:
+ // Nothing to do in this case.
+ break;
+ }
+ return *this;
+ }
+
+ Expected(Expected &&That) noexcept : TheState(That.TheState) {
+ switch (TheState) {
+ case State::SUCCESS:
+ new (&TheValue) T(std::move(That.TheValue));
+ break;
+ case State::FAILURE:
+ new (&TheError) Status(std::move(That.TheError));
+ break;
+ case State::MOVED:
+ // Nothing to do in this case.
+ break;
+ }
+ That.TheState = State::MOVED;
+ }
+
+ template <typename U>
+ Expected(const Expected<U> &That) : TheState(That.TheState) {
+ switch (TheState) {
+ case State::SUCCESS:
+ new (&TheValue) T(That.TheValue);
+ break;
+ case State::FAILURE:
+ new (&TheError) Status(That.TheError);
+ break;
+ case State::MOVED:
+ // Nothing to do in this case.
+ break;
+ }
+ }
+
+ template <typename U> Expected(Expected<U> &&That) : TheState(That.TheState) {
+ switch (TheState) {
+ case State::SUCCESS:
+ new (&TheValue) T(std::move(That.TheValue));
+ break;
+ case State::FAILURE:
+ new (&TheError) Status(std::move(That.TheError));
+ break;
+ case State::MOVED:
+ // Nothing to do in this case.
+ break;
+ }
+ }
+
+ ~Expected() {
+ switch (TheState) {
+ case State::SUCCESS:
+ TheValue.~T();
+ break;
+ case State::FAILURE:
+ TheError.~Status();
+ break;
+ case State::MOVED:
+ // Nothing to do for this case.
+ break;
+ }
+ }
+
+ /// Returns true if this instance represents failure.
+ bool isError() const { return TheState != State::SUCCESS; }
+
+ /// Gets a reference to the Status object.
+ ///
+ /// Should only be called if isError() returns true.
+ const Status &getError() const {
+ assert(isError());
+ return TheError;
+ }
+
+ /// Gets a const reference to the value object.
+ ///
+ /// Should only be called if isError() returns false.
+ const T &getValue() const {
+ assert(!isError());
+ return TheValue;
+ }
+
+ /// Gets a reference to the value object.
+ ///
+ /// Should only be called if isError() returns false.
+ T &getValue() {
+ assert(!isError());
+ return TheValue;
+ }
+
+ /// Takes the value from this object by moving it to the return value.
+ ///
+ /// Should only be called if isError() returns false.
+ T takeValue() {
+ assert(!isError());
+ TheState = State::MOVED;
+ return std::move(TheValue);
+ }
+
+private:
+ template <typename U> friend class Expected;
+
+ State TheState;
+
+ union {
+ T TheValue;
+ Status TheError;
+ };
+};
+
+} // namespace acxxel
+
+#endif // ACXXEL_STATUS_H
Added: parallel-libs/trunk/acxxel/tests/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/tests/CMakeLists.txt?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/tests/CMakeLists.txt (added)
+++ parallel-libs/trunk/acxxel/tests/CMakeLists.txt Tue Oct 25 15:18:56 2016
@@ -0,0 +1,31 @@
+add_executable(acxxel_test acxxel_test.cpp)
+target_link_libraries(
+ acxxel_test
+ acxxel
+ ${GTEST_BOTH_LIBRARIES}
+ ${CMAKE_THREAD_LIBS_INIT})
+add_test(AcxxelTest acxxel_test)
+
+add_executable(span_test span_test.cpp)
+target_link_libraries(
+ span_test
+ ${GTEST_BOTH_LIBRARIES}
+ ${CMAKE_THREAD_LIBS_INIT})
+add_test(SpanTest span_test)
+
+add_executable(status_test status_test.cpp)
+target_link_libraries(
+ status_test
+ ${GTEST_BOTH_LIBRARIES}
+ ${CMAKE_THREAD_LIBS_INIT})
+add_test(StatusTest status_test)
+
+if(ACXXEL_ENABLE_OPENCL)
+add_executable(opencl_test opencl_test.cpp)
+target_link_libraries(
+ opencl_test
+ acxxel
+ ${GTEST_BOTH_LIBRARIES}
+ ${CMAKE_THREAD_LIBS_INIT})
+add_test(OpenCLTest opencl_test)
+endif()
Added: parallel-libs/trunk/acxxel/tests/acxxel_test.cpp
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/tests/acxxel_test.cpp?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/tests/acxxel_test.cpp (added)
+++ parallel-libs/trunk/acxxel/tests/acxxel_test.cpp Tue Oct 25 15:18:56 2016
@@ -0,0 +1,412 @@
+//===--- acxxel_test.cpp - Tests for the Acxxel API -----------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "acxxel.h"
+#include "config.h"
+#include "gtest/gtest.h"
+
+#include <chrono>
+#include <condition_variable>
+#include <mutex>
+#include <thread>
+
+namespace {
+
+template <typename T, size_t N> constexpr size_t size(T (&)[N]) { return N; }
+
+using PlatformGetter = acxxel::Expected<acxxel::Platform *> (*)();
+class AcxxelTest : public ::testing::TestWithParam<PlatformGetter> {};
+
+TEST_P(AcxxelTest, GetDeviceCount) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ int DeviceCount = Platform->getDeviceCount().getValue();
+ EXPECT_GE(DeviceCount, 0);
+}
+
+// Tests all the methods of a DeviceMemorySpan that was created from the asSpan
+// method of a DeviceMemory object.
+//
+// The length is the number of elements in the span. The ElementByteSize is the
+// number of bytes per element in the span.
+//
+// It is assumed that the input span has 10 or more elements.
+template <typename SpanType>
+void testFullDeviceMemorySpan(SpanType &&Span, ptrdiff_t Length,
+ ptrdiff_t ElementByteSize) {
+ EXPECT_GE(Length, 10);
+ EXPECT_GT(ElementByteSize, 0);
+
+ // Full span
+ EXPECT_EQ(Length, Span.length());
+ EXPECT_EQ(Length, Span.size());
+ EXPECT_EQ(Length * ElementByteSize, Span.byte_size());
+ EXPECT_EQ(0, Span.offset());
+ EXPECT_EQ(0, Span.byte_offset());
+ EXPECT_FALSE(Span.empty());
+
+ // Sub-span with first method.
+ auto First2 = Span.first(2);
+ EXPECT_EQ(2, First2.length());
+ EXPECT_EQ(2, First2.size());
+ EXPECT_EQ(2 * ElementByteSize, First2.byte_size());
+ EXPECT_EQ(0, First2.offset());
+ EXPECT_EQ(0, First2.byte_offset());
+ EXPECT_FALSE(First2.empty());
+
+ auto First0 = Span.first(0);
+ EXPECT_EQ(0, First0.length());
+ EXPECT_EQ(0, First0.size());
+ EXPECT_EQ(0, First0.byte_size());
+ EXPECT_EQ(0, First0.offset());
+ EXPECT_EQ(0, First0.byte_offset());
+ EXPECT_TRUE(First0.empty());
+
+ // Sub-span with last method.
+ auto Last2 = Span.last(2);
+ EXPECT_EQ(2, Last2.length());
+ EXPECT_EQ(2, Last2.size());
+ EXPECT_EQ(2 * ElementByteSize, Last2.byte_size());
+ EXPECT_EQ(Length - 2, Last2.offset());
+ EXPECT_EQ((Length - 2) * ElementByteSize, Last2.byte_offset());
+ EXPECT_FALSE(Last2.empty());
+
+ auto Last0 = Span.last(0);
+ EXPECT_EQ(0, Last0.length());
+ EXPECT_EQ(0, Last0.size());
+ EXPECT_EQ(0, Last0.byte_size());
+ EXPECT_EQ(Length, Last0.offset());
+ EXPECT_EQ(Length * ElementByteSize, Last0.byte_offset());
+ EXPECT_TRUE(Last0.empty());
+
+ // Sub-span with subspan method.
+ auto Middle2 = Span.subspan(4, 2);
+ EXPECT_EQ(2, Middle2.length());
+ EXPECT_EQ(2, Middle2.size());
+ EXPECT_EQ(2 * ElementByteSize, Middle2.byte_size());
+ EXPECT_EQ(4, Middle2.offset());
+ EXPECT_EQ(4 * ElementByteSize, Middle2.byte_offset());
+ EXPECT_FALSE(Middle2.empty());
+
+ auto Middle0 = Span.subspan(4, 0);
+ EXPECT_EQ(0, Middle0.length());
+ EXPECT_EQ(0, Middle0.size());
+ EXPECT_EQ(0, Middle0.byte_size());
+ EXPECT_EQ(4, Middle0.offset());
+ EXPECT_EQ(4 * ElementByteSize, Middle0.byte_offset());
+ EXPECT_TRUE(Middle0.empty());
+
+ auto Subspan2AtStart = Span.subspan(0, 2);
+ EXPECT_EQ(2, Subspan2AtStart.length());
+ EXPECT_EQ(2, Subspan2AtStart.size());
+ EXPECT_EQ(2 * ElementByteSize, Subspan2AtStart.byte_size());
+ EXPECT_EQ(0, Subspan2AtStart.offset());
+ EXPECT_EQ(0, Subspan2AtStart.byte_offset());
+ EXPECT_FALSE(Subspan2AtStart.empty());
+
+ auto Subspan2AtEnd = Span.subspan(Length - 2, 2);
+ EXPECT_EQ(2, Subspan2AtEnd.length());
+ EXPECT_EQ(2, Subspan2AtEnd.size());
+ EXPECT_EQ(2 * ElementByteSize, Subspan2AtEnd.byte_size());
+ EXPECT_EQ(Length - 2, Subspan2AtEnd.offset());
+ EXPECT_EQ((Length - 2) * ElementByteSize, Subspan2AtEnd.byte_offset());
+ EXPECT_FALSE(Subspan2AtEnd.empty());
+
+ auto Subspan0AtStart = Span.subspan(0, 0);
+ EXPECT_EQ(0, Subspan0AtStart.length());
+ EXPECT_EQ(0, Subspan0AtStart.size());
+ EXPECT_EQ(0, Subspan0AtStart.byte_size());
+ EXPECT_EQ(0, Subspan0AtStart.offset());
+ EXPECT_EQ(0, Subspan0AtStart.byte_offset());
+ EXPECT_TRUE(Subspan0AtStart.empty());
+
+ auto Subspan0AtEnd = Span.subspan(Length, 0);
+ EXPECT_EQ(0, Subspan0AtEnd.length());
+ EXPECT_EQ(0, Subspan0AtEnd.size());
+ EXPECT_EQ(0, Subspan0AtEnd.byte_size());
+ EXPECT_EQ(Length, Subspan0AtEnd.offset());
+ EXPECT_EQ(Length * ElementByteSize, Subspan0AtEnd.byte_offset());
+ EXPECT_TRUE(Subspan0AtEnd.empty());
+}
+
+TEST_P(AcxxelTest, DeviceMemory) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ acxxel::Expected<acxxel::DeviceMemory<int>> MaybeMemory =
+ Platform->mallocD<int>(10);
+ EXPECT_FALSE(MaybeMemory.isError());
+
+ // ref
+ acxxel::DeviceMemory<int> &MemoryRef = MaybeMemory.getValue();
+ EXPECT_EQ(10, MemoryRef.length());
+ EXPECT_EQ(10, MemoryRef.size());
+ EXPECT_EQ(10 * sizeof(int), static_cast<size_t>(MemoryRef.byte_size()));
+ EXPECT_FALSE(MemoryRef.empty());
+
+ // mutable span
+ acxxel::DeviceMemorySpan<int> MutableSpan = MemoryRef.asSpan();
+ testFullDeviceMemorySpan(MutableSpan, 10, sizeof(int));
+
+ // const ref
+ const acxxel::DeviceMemory<int> &ConstMemoryRef = MaybeMemory.getValue();
+ EXPECT_EQ(10, ConstMemoryRef.length());
+ EXPECT_EQ(10, ConstMemoryRef.size());
+ EXPECT_EQ(10 * sizeof(int), static_cast<size_t>(ConstMemoryRef.byte_size()));
+ EXPECT_FALSE(ConstMemoryRef.empty());
+
+ // immutable span
+ acxxel::DeviceMemorySpan<const int> ImmutableSpan = ConstMemoryRef.asSpan();
+ testFullDeviceMemorySpan(ImmutableSpan, 10, sizeof(int));
+}
+
+TEST_P(AcxxelTest, CopyHostAndDevice) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ acxxel::Stream Stream = Platform->createStream().takeValue();
+ int A[] = {0, 1, 2};
+ std::array<int, size(A)> B;
+ acxxel::DeviceMemory<int> X = Platform->mallocD<int>(size(A)).takeValue();
+ Stream.syncCopyHToD(A, X);
+ Stream.syncCopyDToH(X, B);
+ for (size_t I = 0; I < size(A); ++I)
+ EXPECT_EQ(A[I], B[I]);
+ EXPECT_FALSE(Stream.takeStatus().isError());
+}
+
+TEST_P(AcxxelTest, CopyDToD) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ acxxel::Stream Stream = Platform->createStream().takeValue();
+ int A[] = {0, 1, 2};
+ std::array<int, size(A)> B;
+ acxxel::DeviceMemory<int> X = Platform->mallocD<int>(size(A)).takeValue();
+ acxxel::DeviceMemory<int> Y = Platform->mallocD<int>(size(A)).takeValue();
+ Stream.syncCopyHToD(A, X);
+ Stream.syncCopyDToD(X, Y);
+ Stream.syncCopyDToH(Y, B);
+ for (size_t I = 0; I < size(A); ++I)
+ EXPECT_EQ(A[I], B[I]);
+ EXPECT_FALSE(Stream.takeStatus().isError());
+}
+
+TEST_P(AcxxelTest, AsyncCopyHostAndDevice) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ int A[] = {0, 1, 2};
+ std::array<int, size(A)> B;
+ acxxel::DeviceMemory<int> X = Platform->mallocD<int>(size(A)).takeValue();
+ acxxel::Stream Stream = Platform->createStream().takeValue();
+ acxxel::AsyncHostMemory<int> AsyncA =
+ Platform->registerHostMem(A).takeValue();
+ acxxel::AsyncHostMemory<int> AsyncB =
+ Platform->registerHostMem(B).takeValue();
+ EXPECT_FALSE(Stream.asyncCopyHToD(AsyncA, X).takeStatus().isError());
+ EXPECT_FALSE(Stream.asyncCopyDToH(X, AsyncB).takeStatus().isError());
+ EXPECT_FALSE(Stream.sync().isError());
+ for (size_t I = 0; I < size(A); ++I)
+ EXPECT_EQ(A[I], B[I]);
+}
+
+TEST_P(AcxxelTest, AsyncMemsetD) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ constexpr size_t ArrayLength = 10;
+ std::array<uint32_t, ArrayLength> Host;
+ acxxel::DeviceMemory<uint32_t> X =
+ Platform->mallocD<uint32_t>(ArrayLength).takeValue();
+ acxxel::Stream Stream = Platform->createStream().takeValue();
+ acxxel::AsyncHostMemory<uint32_t> AsyncHost =
+ Platform->registerHostMem(Host).takeValue();
+ EXPECT_FALSE(Stream.asyncMemsetD(X, 0x12).takeStatus().isError());
+ EXPECT_FALSE(Stream.asyncCopyDToH(X, AsyncHost).takeStatus().isError());
+ EXPECT_FALSE(Stream.sync().isError());
+ for (size_t I = 0; I < ArrayLength; ++I)
+ EXPECT_EQ(0x12121212u, Host[I]);
+}
+
+TEST_P(AcxxelTest, RegisterHostMem) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ auto Data = std::unique_ptr<int[]>(new int[3]);
+ acxxel::Expected<acxxel::AsyncHostMemory<const int>> MaybeAsyncHostMemory =
+ Platform->registerHostMem<int>({Data.get(), 3});
+ EXPECT_FALSE(MaybeAsyncHostMemory.isError())
+ << MaybeAsyncHostMemory.getError().getMessage();
+ acxxel::AsyncHostMemory<const int> AsyncHostMemory =
+ MaybeAsyncHostMemory.takeValue();
+ EXPECT_EQ(Data.get(), AsyncHostMemory.data());
+ EXPECT_EQ(3, AsyncHostMemory.size());
+}
+
+struct RefCounter {
+ static int Count;
+
+ RefCounter() { ++Count; }
+ ~RefCounter() { --Count; }
+ RefCounter(const RefCounter &) = delete;
+ RefCounter &operator=(const RefCounter &) = delete;
+};
+
+int RefCounter::Count;
+
+TEST_P(AcxxelTest, OwnedAsyncHost) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ RefCounter::Count = 0;
+ {
+ acxxel::OwnedAsyncHostMemory<RefCounter> A =
+ Platform->newAsyncHostMem<RefCounter>(3).takeValue();
+ EXPECT_EQ(3, RefCounter::Count);
+ }
+ EXPECT_EQ(0, RefCounter::Count);
+}
+
+TEST_P(AcxxelTest, OwnedAsyncCopyHostAndDevice) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ size_t Length = 3;
+ acxxel::OwnedAsyncHostMemory<int> A =
+ Platform->newAsyncHostMem<int>(Length).takeValue();
+ for (size_t I = 0; I < Length; ++I)
+ A[I] = I;
+ acxxel::OwnedAsyncHostMemory<int> B =
+ Platform->newAsyncHostMem<int>(Length).takeValue();
+ acxxel::DeviceMemory<int> X = Platform->mallocD<int>(Length).takeValue();
+ acxxel::Stream Stream = Platform->createStream().takeValue();
+ EXPECT_FALSE(Stream.asyncCopyHToD(A, X).takeStatus().isError());
+ EXPECT_FALSE(Stream.asyncCopyDToH(X, B).takeStatus().isError());
+ EXPECT_FALSE(Stream.sync().isError());
+ for (size_t I = 0; I < Length; ++I)
+ EXPECT_EQ(A[I], B[I]);
+}
+
+TEST_P(AcxxelTest, AsyncCopyDToD) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ int A[] = {0, 1, 2};
+ std::array<int, size(A)> B;
+ acxxel::DeviceMemory<int> X = Platform->mallocD<int>(size(A)).takeValue();
+ acxxel::DeviceMemory<int> Y = Platform->mallocD<int>(size(A)).takeValue();
+ acxxel::Stream Stream = Platform->createStream().takeValue();
+ acxxel::AsyncHostMemory<int> AsyncA =
+ Platform->registerHostMem(A).takeValue();
+ acxxel::AsyncHostMemory<int> AsyncB =
+ Platform->registerHostMem(B).takeValue();
+ EXPECT_FALSE(Stream.asyncCopyHToD(AsyncA, X).takeStatus().isError());
+ EXPECT_FALSE(Stream.asyncCopyDToD(X, Y).takeStatus().isError());
+ EXPECT_FALSE(Stream.asyncCopyDToH(Y, AsyncB).takeStatus().isError());
+ EXPECT_FALSE(Stream.sync().isError());
+ for (size_t I = 0; I < size(A); ++I)
+ EXPECT_EQ(A[I], B[I]);
+}
+
+TEST_P(AcxxelTest, Stream) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ acxxel::Stream Stream = Platform->createStream().takeValue();
+ EXPECT_FALSE(Stream.sync().isError());
+}
+
+TEST_P(AcxxelTest, Event) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ acxxel::Event Event = Platform->createEvent().takeValue();
+ EXPECT_TRUE(Event.isDone());
+ EXPECT_FALSE(Event.sync().isError());
+}
+
+TEST_P(AcxxelTest, RecordEventsInAStream) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ acxxel::Stream Stream = Platform->createStream().takeValue();
+ acxxel::Event Start = Platform->createEvent().takeValue();
+ acxxel::Event End = Platform->createEvent().takeValue();
+ EXPECT_FALSE(Stream.enqueueEvent(Start).takeStatus().isError());
+ EXPECT_FALSE(Start.sync().isError());
+ std::this_thread::sleep_for(std::chrono::milliseconds(10));
+ EXPECT_FALSE(Stream.enqueueEvent(End).takeStatus().isError());
+ EXPECT_FALSE(End.sync().isError());
+ EXPECT_GT(End.getSecondsSince(Start).takeValue(), 0);
+}
+
+TEST_P(AcxxelTest, StreamCallback) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ int Value = 0;
+ acxxel::Stream Stream = Platform->createStream().takeValue();
+ EXPECT_FALSE(
+ Stream
+ .addCallback([&Value](acxxel::Stream &, const acxxel::Status &) {
+ Value = 42;
+ })
+ .takeStatus()
+ .isError());
+ EXPECT_FALSE(Stream.sync().isError());
+ EXPECT_EQ(42, Value);
+}
+
+TEST_P(AcxxelTest, WaitForEventsInAStream) {
+ acxxel::Platform *Platform = GetParam()().takeValue();
+ acxxel::Stream Stream0 = Platform->createStream().takeValue();
+ acxxel::Stream Stream1 = Platform->createStream().takeValue();
+ acxxel::Event Event0 = Platform->createEvent().takeValue();
+ acxxel::Event Event1 = Platform->createEvent().takeValue();
+
+ // Thread loops on Stream0 until someone sets the GoFlag, then set the
+ // MarkerFlag.
+
+ std::mutex Mutex;
+ std::condition_variable ConditionVar;
+ bool GoFlag = false;
+ bool MarkerFlag = false;
+
+ EXPECT_FALSE(Stream0
+ .addCallback([&Mutex, &ConditionVar, &GoFlag, &MarkerFlag](
+ acxxel::Stream &, const acxxel::Status &) {
+ std::unique_lock<std::mutex> Lock(Mutex);
+ ConditionVar.wait(Lock,
+ [&GoFlag] { return GoFlag == true; });
+ MarkerFlag = true;
+ })
+ .takeStatus()
+ .isError());
+
+ // Event0 can only occur after GoFlag and MarkerFlag are set.
+ EXPECT_FALSE(Stream0.enqueueEvent(Event0).takeStatus().isError());
+
+ // Use waitOnEvent to make a callback on Stream1 wait for an event on Stream0.
+ EXPECT_FALSE(Stream1.waitOnEvent(Event0).isError());
+ EXPECT_FALSE(Stream1.enqueueEvent(Event1).takeStatus().isError());
+ EXPECT_FALSE(Stream1
+ .addCallback([&Mutex, &MarkerFlag](acxxel::Stream &,
+ const acxxel::Status &) {
+ std::unique_lock<std::mutex> Lock(Mutex);
+ // This makes sure that this callback runs after the
+ // callback on Stream0.
+ EXPECT_TRUE(MarkerFlag);
+ })
+ .takeStatus()
+ .isError());
+
+ // Allow the callback on Stream0 to set MarkerFlag and finish.
+ {
+ std::unique_lock<std::mutex> Lock(Mutex);
+ GoFlag = true;
+ }
+ ConditionVar.notify_one();
+
+ // Make sure the events have finished and that Event1 did not happen before
+ // Event0.
+ EXPECT_FALSE(Event0.sync().isError());
+ EXPECT_FALSE(Event1.sync().isError());
+ EXPECT_FALSE(Stream1.sync().isError());
+}
+
+#if defined(ACXXEL_ENABLE_CUDA) || defined(ACXXEL_ENABLE_OPENCL)
+INSTANTIATE_TEST_CASE_P(BothPlatformTest, AcxxelTest,
+ ::testing::Values(
+#ifdef ACXXEL_ENABLE_CUDA
+ acxxel::getCUDAPlatform
+#ifdef ACXXEL_ENABLE_OPENCL
+ ,
+#endif
+#endif
+#ifdef ACXXEL_ENABLE_OPENCL
+ acxxel::getOpenCLPlatform
+#endif
+ ));
+#endif
+
+} // namespace
Added: parallel-libs/trunk/acxxel/tests/opencl_test.cpp
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/tests/opencl_test.cpp?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/tests/opencl_test.cpp (added)
+++ parallel-libs/trunk/acxxel/tests/opencl_test.cpp Tue Oct 25 15:18:56 2016
@@ -0,0 +1,62 @@
+//===--- opencl_test.cpp - Tests for OpenCL and the Acxxel API ------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "acxxel.h"
+#include "gtest/gtest.h"
+
+#include <array>
+#include <cstring>
+
+namespace {
+
+static const char *SaxpyKernelSource = R"(
+__kernel void saxpyKernel(float A, __global float *X, __global float *Y, int N) {
+ int I = get_global_id(0);
+ if (I < N)
+ X[I] = A * X[I] + Y[I];
+}
+)";
+
+TEST(OpenCL, Saxpy) {
+ constexpr size_t Length = 3;
+
+ float A = 2.f;
+ std::array<float, Length> X = {{0.f, 1.f, 2.f}};
+ std::array<float, Length> Y = {{3.f, 4.f, 5.f}};
+ std::array<float, Length> Expected = {{3.f, 6.f, 9.f}};
+
+ acxxel::Platform *OpenCL = acxxel::getOpenCLPlatform().getValue();
+ acxxel::Stream Stream = OpenCL->createStream().takeValue();
+ auto DeviceX = OpenCL->mallocD<float>(Length).takeValue();
+ auto DeviceY = OpenCL->mallocD<float>(Length).takeValue();
+ Stream.syncCopyHToD(X, DeviceX);
+ Stream.syncCopyHToD(Y, DeviceY);
+ acxxel::Program Program =
+ OpenCL
+ ->createProgramFromSource(acxxel::Span<const char>(
+ SaxpyKernelSource, std::strlen(SaxpyKernelSource)))
+ .takeValue();
+ acxxel::Kernel Kernel = Program.createKernel("saxpyKernel").takeValue();
+ float *RawX = static_cast<float *>(DeviceX);
+ float *RawY = static_cast<float *>(DeviceY);
+ int IntLength = Length;
+ void *Arguments[] = {&A, &RawX, &RawY, &IntLength};
+ size_t ArgumentSizes[] = {sizeof(float), sizeof(float *), sizeof(float *),
+ sizeof(int)};
+ EXPECT_FALSE(
+ Stream.asyncKernelLaunch(Kernel, Length, Arguments, ArgumentSizes)
+ .takeStatus()
+ .isError());
+ Stream.syncCopyDToH(DeviceX, X);
+ EXPECT_FALSE(Stream.sync().isError());
+
+ EXPECT_EQ(X, Expected);
+}
+
+} // namespace
Added: parallel-libs/trunk/acxxel/tests/span_test.cpp
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/tests/span_test.cpp?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/tests/span_test.cpp (added)
+++ parallel-libs/trunk/acxxel/tests/span_test.cpp Tue Oct 25 15:18:56 2016
@@ -0,0 +1,293 @@
+//===--- span_test.cpp - Tests for the span class -------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "span.h"
+
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+#include <array>
+#include <vector>
+
+namespace {
+
+template <typename T, size_t N> size_t arraySize(T (&)[N]) { return N; }
+
+TEST(Span, NullConstruction) {
+ acxxel::Span<int> Span0;
+ EXPECT_EQ(nullptr, Span0.data());
+ EXPECT_EQ(0, Span0.size());
+
+ acxxel::Span<int> Span1(nullptr);
+ EXPECT_EQ(nullptr, Span1.data());
+ EXPECT_EQ(0, Span1.size());
+}
+
+TEST(Span, PtrSizeConstruction) {
+ int ZeroSize = 0;
+ acxxel::Span<int> Span0(nullptr, ZeroSize);
+ EXPECT_EQ(Span0.data(), nullptr);
+ EXPECT_EQ(Span0.size(), 0);
+
+ int Values[] = {0, 1, 2};
+ acxxel::Span<int> Span1(Values, arraySize(Values));
+ EXPECT_EQ(Span1.data(), Values);
+ EXPECT_EQ(static_cast<size_t>(Span1.size()), arraySize(Values));
+
+ acxxel::Span<int> Span2(Values, ZeroSize);
+ EXPECT_EQ(Span2.data(), Values);
+ EXPECT_EQ(Span2.size(), 0);
+}
+
+TEST(Span, PtrSizeConstruction_NegativeCount) {
+ int Values[] = {0, 1, 2};
+ EXPECT_DEATH(acxxel::Span<int> Span0(Values, -1), "terminate");
+}
+
+TEST(Span, PtrSizeConstruction_NullptrNonzeroSize) {
+ EXPECT_DEATH(acxxel::Span<int> Span0(nullptr, 1), "terminate");
+}
+
+TEST(Span, FirstLastConstruction) {
+ int Values[] = {0, 1, 2};
+
+ acxxel::Span<int> Span0(Values, Values);
+ EXPECT_EQ(Span0.data(), Values);
+ EXPECT_EQ(Span0.size(), 0);
+
+ acxxel::Span<int> Span(Values, Values + 2);
+ EXPECT_EQ(Span.data(), Values);
+ EXPECT_EQ(Span.size(), 2);
+}
+
+TEST(Span, FirstLastConstruction_LastBeforeFirst) {
+ int Values[] = {0, 1, 2};
+ EXPECT_DEATH(acxxel::Span<int> Span(Values + 2, Values), "terminate");
+}
+
+TEST(Span, ArrayConstruction) {
+ int Array[] = {0, 1, 2};
+ acxxel::Span<int> Span(Array);
+ EXPECT_EQ(Span.data(), Array);
+ EXPECT_EQ(Span.size(), 3);
+}
+
+TEST(Span, StdArrayConstruction) {
+ std::array<int, 3> Array{0, 1, 2};
+ acxxel::Span<int> Span(Array);
+ EXPECT_EQ(Span.data(), Array.data());
+ EXPECT_EQ(static_cast<size_t>(Span.size()), Array.size());
+
+ std::array<const int, 3> ConstArray{0, 1, 2};
+ acxxel::Span<const int> ConstSpan(ConstArray);
+ EXPECT_EQ(ConstSpan.data(), ConstArray.data());
+ EXPECT_EQ(static_cast<size_t>(ConstSpan.size()), ConstArray.size());
+}
+
+TEST(Span, ContainerConstruction) {
+ std::vector<int> Vector = {0, 1, 2};
+ acxxel::Span<int> Span(Vector);
+ EXPECT_EQ(Span.data(), &Vector[0]);
+ EXPECT_EQ(static_cast<size_t>(Span.size()), Vector.size());
+}
+
+TEST(Span, CopyConstruction) {
+ int Values[] = {0, 1, 2};
+ acxxel::Span<int> Span0(Values);
+ acxxel::Span<int> Span1(Span0);
+ EXPECT_EQ(Span1.data(), Values);
+ EXPECT_EQ(static_cast<size_t>(Span1.size()), arraySize(Values));
+}
+
+TEST(Span, CopyAssignment) {
+ int Values[] = {0, 1, 2};
+ acxxel::Span<int> Span0(Values);
+ acxxel::Span<int> Span1;
+ Span1 = Span0;
+ EXPECT_EQ(Span1.data(), Values);
+ EXPECT_EQ(static_cast<size_t>(Span1.size()), arraySize(Values));
+}
+
+TEST(Span, CopyConstFromNonConst) {
+ int Values[] = {0, 1, 2};
+ acxxel::Span<int> Span0(Values);
+ acxxel::Span<const int> Span1(Span0);
+ EXPECT_EQ(Span1.data(), Values);
+ EXPECT_EQ(static_cast<size_t>(Span1.size()), arraySize(Values));
+}
+
+TEST(Span, FirstMethod) {
+ int Values[] = {0, 1, 2};
+ acxxel::Span<int> Span(Values);
+ acxxel::Span<int> Span0 = Span.first(0);
+ acxxel::Span<int> Span1 = Span.first(1);
+ acxxel::Span<int> Span2 = Span.first(2);
+ acxxel::Span<int> Span3 = Span.first(3);
+
+ EXPECT_EQ(Span0.data(), Values);
+ EXPECT_EQ(Span1.data(), Values);
+ EXPECT_EQ(Span2.data(), Values);
+ EXPECT_EQ(Span3.data(), Values);
+
+ EXPECT_TRUE(Span0.empty());
+
+ EXPECT_THAT(Span1, ::testing::ElementsAre(0));
+ EXPECT_THAT(Span2, ::testing::ElementsAre(0, 1));
+ EXPECT_THAT(Span3, ::testing::ElementsAre(0, 1, 2));
+}
+
+TEST(Span, FirstMethod_IllegalArguments) {
+ int Values[] = {0, 1, 2};
+ acxxel::Span<int> Span(Values);
+
+ EXPECT_DEATH(Span.first(-1), "terminate");
+ EXPECT_DEATH(Span.first(4), "terminate");
+}
+
+TEST(Span, LastMethod) {
+ int Values[] = {0, 1, 2};
+ acxxel::Span<int> Span(Values);
+ acxxel::Span<int> Span0 = Span.last(0);
+ acxxel::Span<int> Span1 = Span.last(1);
+ acxxel::Span<int> Span2 = Span.last(2);
+ acxxel::Span<int> Span3 = Span.last(3);
+
+ EXPECT_EQ(Span0.data(), Values);
+ EXPECT_EQ(Span1.data(), Values + 2);
+ EXPECT_EQ(Span2.data(), Values + 1);
+ EXPECT_EQ(Span3.data(), Values);
+
+ EXPECT_TRUE(Span0.empty());
+
+ EXPECT_THAT(Span1, ::testing::ElementsAre(2));
+ EXPECT_THAT(Span2, ::testing::ElementsAre(1, 2));
+ EXPECT_THAT(Span3, ::testing::ElementsAre(0, 1, 2));
+}
+
+TEST(Span, LastMethod_IllegalArguments) {
+ int Values[] = {0, 1, 2};
+ acxxel::Span<int> Span(Values);
+
+ EXPECT_DEATH(Span.last(-1), "terminate");
+ EXPECT_DEATH(Span.last(4), "terminate");
+}
+
+TEST(Span, SubspanMethod) {
+ int Values[] = {0, 1, 2};
+ acxxel::Span<int> Span(Values);
+
+ acxxel::Span<int> Span0 = Span.subspan(0);
+ acxxel::Span<int> Span0e = Span.subspan(0, acxxel::dynamic_extent);
+ acxxel::Span<int> Span00 = Span.subspan(0, 0);
+ acxxel::Span<int> Span01 = Span.subspan(0, 1);
+ acxxel::Span<int> Span02 = Span.subspan(0, 2);
+ acxxel::Span<int> Span03 = Span.subspan(0, 3);
+
+ acxxel::Span<int> Span1 = Span.subspan(1);
+ acxxel::Span<int> Span1e = Span.subspan(1, acxxel::dynamic_extent);
+ acxxel::Span<int> Span10 = Span.subspan(1, 0);
+ acxxel::Span<int> Span11 = Span.subspan(1, 1);
+ acxxel::Span<int> Span12 = Span.subspan(1, 2);
+
+ acxxel::Span<int> Span2 = Span.subspan(2);
+ acxxel::Span<int> Span2e = Span.subspan(2, acxxel::dynamic_extent);
+ acxxel::Span<int> Span20 = Span.subspan(2, 0);
+ acxxel::Span<int> Span21 = Span.subspan(2, 1);
+
+ acxxel::Span<int> Span3 = Span.subspan(3);
+ acxxel::Span<int> Span3e = Span.subspan(3, acxxel::dynamic_extent);
+ acxxel::Span<int> Span30 = Span.subspan(3, 0);
+
+ EXPECT_EQ(Span0.data(), Values);
+ EXPECT_EQ(Span0e.data(), Values);
+ EXPECT_EQ(Span00.data(), Values);
+ EXPECT_EQ(Span01.data(), Values);
+ EXPECT_EQ(Span02.data(), Values);
+ EXPECT_EQ(Span03.data(), Values);
+
+ EXPECT_EQ(Span1.data(), Values + 1);
+ EXPECT_EQ(Span1e.data(), Values + 1);
+ EXPECT_EQ(Span10.data(), Values + 1);
+ EXPECT_EQ(Span11.data(), Values + 1);
+ EXPECT_EQ(Span12.data(), Values + 1);
+
+ EXPECT_EQ(Span2.data(), Values + 2);
+ EXPECT_EQ(Span2e.data(), Values + 2);
+ EXPECT_EQ(Span20.data(), Values + 2);
+ EXPECT_EQ(Span21.data(), Values + 2);
+
+ EXPECT_EQ(Span3.data(), Values + 3);
+ EXPECT_EQ(Span3e.data(), Values + 3);
+ EXPECT_EQ(Span30.data(), Values + 3);
+
+ EXPECT_TRUE(Span00.empty());
+ EXPECT_TRUE(Span10.empty());
+ EXPECT_TRUE(Span20.empty());
+ EXPECT_TRUE(Span30.empty());
+
+ EXPECT_THAT(Span0, ::testing::ElementsAre(0, 1, 2));
+ EXPECT_THAT(Span0e, ::testing::ElementsAre(0, 1, 2));
+ EXPECT_THAT(Span01, ::testing::ElementsAre(0));
+ EXPECT_THAT(Span02, ::testing::ElementsAre(0, 1));
+ EXPECT_THAT(Span03, ::testing::ElementsAre(0, 1, 2));
+
+ EXPECT_THAT(Span1, ::testing::ElementsAre(1, 2));
+ EXPECT_THAT(Span1e, ::testing::ElementsAre(1, 2));
+ EXPECT_THAT(Span11, ::testing::ElementsAre(1));
+ EXPECT_THAT(Span12, ::testing::ElementsAre(1, 2));
+
+ EXPECT_THAT(Span2, ::testing::ElementsAre(2));
+ EXPECT_THAT(Span2e, ::testing::ElementsAre(2));
+ EXPECT_THAT(Span21, ::testing::ElementsAre(2));
+
+ EXPECT_TRUE(Span3.empty());
+ EXPECT_TRUE(Span3e.empty());
+}
+
+TEST(Span, SubspanMethod_IllegalArguments) {
+ int Values[] = {0, 1, 2};
+ acxxel::Span<int> Span(Values);
+ EXPECT_DEATH(Span.subspan(-1, 0), "terminate");
+ EXPECT_DEATH(Span.subspan(0, -2), "terminate");
+ EXPECT_DEATH(Span.subspan(0, 4), "terminate");
+ EXPECT_DEATH(Span.subspan(1, 3), "terminate");
+ EXPECT_DEATH(Span.subspan(2, 2), "terminate");
+ EXPECT_DEATH(Span.subspan(3, 1), "terminate");
+ EXPECT_DEATH(Span.subspan(4, 0), "terminate");
+}
+
+TEST(Span, ElementAccess) {
+ int Values[] = {0, 1, 2};
+ acxxel::Span<int> Span(Values);
+
+ EXPECT_EQ(&Span[0], Values);
+ EXPECT_EQ(&Span[1], Values + 1);
+ EXPECT_EQ(&Span[2], Values + 2);
+ EXPECT_EQ(&Span(0), Values);
+ EXPECT_EQ(&Span(1), Values + 1);
+ EXPECT_EQ(&Span(2), Values + 2);
+
+ Span[0] = 5;
+ EXPECT_EQ(Values[0], 5);
+
+ Span(0) = 0;
+ EXPECT_EQ(Values[0], 0);
+
+ const int ConstValues[] = {0, 1, 2};
+ acxxel::Span<const int> ConstSpan(ConstValues);
+
+ EXPECT_EQ(&ConstSpan[0], ConstValues);
+ EXPECT_EQ(&ConstSpan[1], ConstValues + 1);
+ EXPECT_EQ(&ConstSpan[2], ConstValues + 2);
+ EXPECT_EQ(&ConstSpan(0), ConstValues);
+ EXPECT_EQ(&ConstSpan(1), ConstValues + 1);
+ EXPECT_EQ(&ConstSpan(2), ConstValues + 2);
+}
+
+} // namespace
Added: parallel-libs/trunk/acxxel/tests/status_test.cpp
URL: http://llvm.org/viewvc/llvm-project/parallel-libs/trunk/acxxel/tests/status_test.cpp?rev=285111&view=auto
==============================================================================
--- parallel-libs/trunk/acxxel/tests/status_test.cpp (added)
+++ parallel-libs/trunk/acxxel/tests/status_test.cpp Tue Oct 25 15:18:56 2016
@@ -0,0 +1,56 @@
+//===--- status_test.cpp - Tests for the Status and Expected classes ------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "status.h"
+
+#include "gtest/gtest.h"
+
+#include <memory>
+
+namespace {
+
+struct RefCounter {
+ static int Count;
+
+ RefCounter() { ++Count; }
+ ~RefCounter() { --Count; }
+ RefCounter(const RefCounter &) = delete;
+ RefCounter &operator=(const RefCounter &) = delete;
+};
+
+int RefCounter::Count;
+
+TEST(Expected, RefCounter) {
+ RefCounter::Count = 0;
+ using uptr = std::unique_ptr<RefCounter>;
+
+ acxxel::Expected<uptr> E0(uptr(new RefCounter));
+ EXPECT_FALSE(E0.isError());
+ EXPECT_EQ(1, RefCounter::Count);
+
+ acxxel::Expected<uptr> E1(std::move(E0));
+ EXPECT_FALSE(E1.isError());
+ EXPECT_EQ(1, RefCounter::Count);
+
+ acxxel::Expected<uptr> E2(acxxel::Status("nothing in here yet"));
+ EXPECT_TRUE(E2.isError());
+ EXPECT_EQ(1, RefCounter::Count);
+ E2 = std::move(E1);
+ EXPECT_FALSE(E2.isError());
+ EXPECT_EQ(1, RefCounter::Count);
+
+ EXPECT_EQ(1, E2.getValue()->Count);
+ EXPECT_FALSE(E2.isError());
+ EXPECT_EQ(1, RefCounter::Count);
+
+ EXPECT_EQ(1, E2.takeValue()->Count);
+ EXPECT_EQ(0, RefCounter::Count);
+}
+
+} // namespace
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