[Openmp-dev] nvlink fatal : Could not open input file '/tmp/get_mem-decc5d.cubin'

Mon May 18 18:11:34 PDT 2020

As far as I know, it is not a linker problem but a driver problem.

It will eventually go away but we are still working on other issues in 
this area.

On 5/18/20 7:43 PM, Itaru Kitayama via Openmp-dev wrote:
> Will ld or LLD be able to handle mixed objects
> in future? That’s slightly un intuitive adding -fopenmp-targets=nvptx64 to
> the C_FLAGS while there’s zero C files containing omp target pragmas.
>
> On Tue, May 19, 2020 at 7:29 Alexey Bataev <a.bataev at outlook.com> wrote:
>
>> I think thereis a mix of "fat/not-fat" objects. But linker expects that
>> all objects are compiled as "fat" objects. Do you have a C code in this
>> project? DCMAKE_CXX_FLAGS affects only c++ compiler.
>>
>> Best regards,
>> Alexey Bataev
>>
>>> 18 мая 2020 г., в 17:31, Itaru Kitayama <itaru.kitayama at gmail.com>
>> написал(а):
>>> Thank you, Alexey for building the app. In my environment, I stick to
>>> CUDA Toolkt 10.1, as 8 seems
>>> require older GCC releases, but higher than CentOS 7's default 4.8.
>>> Anyway, in summary
>>> by configuring NEST with yours, builds went well without an issue.
>>> Both -O0 and -O3 works.
>>>
>>> Below is mine
>>> cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=clang
>>> -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_CXX_FLAGS="-fopenmp
>>> -fopenmp-targets=nvptx64"
>>> -DCMAKE_INSTALL_PREFIX=$HOME/opt/nest-clang-offloading
>>> -Dwith-python=OFF ~/projects/nest-simulator
>>>
>>>> On Tue, May 19, 2020 at 6:20 AM Alexey.Bataev <a.bataev at outlook.com>
>> wrote:
>>>> Tried to build without -O0, builds fine.
>>>>
>>>> -------------
>>>> Best regards,
>>>> Alexey Bataev
>>>>
>>>> 18.05.2020 4:16 PM, Itaru Kitayama via Openmp-dev пишет:
>>>>
>>>> Do you use CUDA Toolkit 8 or 10 release?
>>>> I’ll try your config in my dev environment.
>>>>
>>>>> On Tue, May 19, 2020 at 5:12 Alexey.Bataev <a.bataev at outlook.com>
>> wrote:
>>>>> Hi, tried to rebuild it from the scratch, did not see any issue. My
>> config:
>>>>> cmake -DCMAKE_INSTALL_PREFIX=~/test/NEST/install
>> -Dwith-openmp="-fopenmp -fopenmp-targets=nvptx64-nvidia-cuda -O0"
>> -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ ../nest-simulator
>> -DCMAKE_CXX_FLAGS="-I ~/build_llvm/projects/openmp/runtime/src -L
>> ~/build_llvm/projects/openmp/libomptarget/" -DCMAKE_C_FLAGS="-I
>> /~/build_llvm/projects/openmp/runtime/src -L
>> ~/build_llvm/projects/openmp/libomptarget/" -DCMAKE_BUILD_TYPE=Release
>> -Dwith-python=OFF
>>>>> -------------
>>>>> Best regards,
>>>>> Alexey Bataev
>>>>>
>>>>> 14.05.2020 6:42 AM, Itaru Kitayama via Openmp-dev пишет:
>>>>>
>>>>> Hi,
>>>>>
>>>>> During my app build I get an error (Clang is the latest from master
>>>>> with CUDA Toolkit 10.1):
>>>>>
>>>>> ...
>>>>> [  3%] Linking CXX shared library libsli.so
>>>>> cd /home/usr4/c74014k/builds/nest-clang-offloading/sli &&
>>>>> /home/usr4/c74014k/cmake-3.17.1-Linux-x86_64/bin/cmake -E
>>>>> cmake_link_script CMakeFiles/sli_lib.dir/link.txt --verbose=1
>>>>> /home/usr4/c74014k/opt/clang/current/bin/clang++ -fPIC -fopenmp
>>>>> -fopenmp-targets=nvptx64 -std=c++11 -O2 -Wall -fopenmp=libomp
>>>>> -shared -Wl,-soname,libsli.so -o libsli.so
>>>>> CMakeFiles/sli_lib.dir/allocator.cpp.o
>>>>> CMakeFiles/sli_lib.dir/arraydatum.cc.o
>>>>> CMakeFiles/sli_lib.dir/booldatum.cc.o
>>>>> CMakeFiles/sli_lib.dir/charcode.cc.o CMakeFiles/sli_lib.dir/datum.cc.o
>>>>> CMakeFiles/sli_lib.dir/dict.cc.o CMakeFiles/sli_lib.dir/dictdatum.cc.o
>>>>> CMakeFiles/sli_lib.dir/dictstack.cc.o
>>>>> CMakeFiles/sli_lib.dir/dictutils.cc.o
>>>>> CMakeFiles/sli_lib.dir/doubledatum.cc.o
>>>>> CMakeFiles/sli_lib.dir/fdstream.cc.o
>>>>> CMakeFiles/sli_lib.dir/filesystem.cc.o
>>>>> CMakeFiles/sli_lib.dir/functiondatum.cc.o
>>>>> CMakeFiles/sli_lib.dir/get_mem.c.o
>>>>> CMakeFiles/sli_lib.dir/integerdatum.cc.o
>>>>> CMakeFiles/sli_lib.dir/interpret.cc.o
>>>>> CMakeFiles/sli_lib.dir/iostreamdatum.cc.o
>>>>> CMakeFiles/sli_lib.dir/literaldatum.cc.o
>>>>> CMakeFiles/sli_lib.dir/name.cc.o CMakeFiles/sli_lib.dir/slinames.cpp.o
>>>>> CMakeFiles/sli_lib.dir/namedatum.cc.o
>>>>> CMakeFiles/sli_lib.dir/oosupport.cc.o
>>>>> CMakeFiles/sli_lib.dir/parser.cc.o
>>>>> CMakeFiles/sli_lib.dir/processes.cc.o
>>>>> CMakeFiles/sli_lib.dir/scanner.cc.o CMakeFiles/sli_lib.dir/sli_io.cc.o
>>>>> CMakeFiles/sli_lib.dir/sliactions.cc.o
>>>>> CMakeFiles/sli_lib.dir/sliarray.cc.o
>>>>> CMakeFiles/sli_lib.dir/slibuiltins.cc.o
>>>>> CMakeFiles/sli_lib.dir/slicontrol.cc.o
>>>>> CMakeFiles/sli_lib.dir/slidata.cc.o
>>>>> CMakeFiles/sli_lib.dir/slidict.cc.o
>>>>> CMakeFiles/sli_lib.dir/sliexceptions.cc.o
>>>>> CMakeFiles/sli_lib.dir/sligraphics.cc.o
>>>>> CMakeFiles/sli_lib.dir/slimath.cc.o
>>>>> CMakeFiles/sli_lib.dir/slimodule.cc.o
>>>>> CMakeFiles/sli_lib.dir/sliregexp.cc.o
>>>>> CMakeFiles/sli_lib.dir/slistack.cc.o
>>>>> CMakeFiles/sli_lib.dir/slistartup.cc.o
>>>>> CMakeFiles/sli_lib.dir/slitype.cc.o
>>>>> CMakeFiles/sli_lib.dir/slitypecheck.cc.o
>>>>> CMakeFiles/sli_lib.dir/specialfunctionsmodule.cc.o
>>>>> CMakeFiles/sli_lib.dir/stringdatum.cc.o
>>>>> CMakeFiles/sli_lib.dir/symboldatum.cc.o
>>>>> CMakeFiles/sli_lib.dir/tarrayobj.cc.o
>>>>> CMakeFiles/sli_lib.dir/token.cc.o
>>>>> CMakeFiles/sli_lib.dir/tokenarray.cc.o
>>>>> CMakeFiles/sli_lib.dir/tokenstack.cc.o
>>>>> CMakeFiles/sli_lib.dir/tokenutils.cc.o
>>>>> CMakeFiles/sli_lib.dir/triedatum.cc.o
>>>>> CMakeFiles/sli_lib.dir/typechk.cc.o CMakeFiles/sli_lib.dir/utils.cc.o
>>>>>
>> -Wl,-rpath,/home/usr4/c74014k/builds/nest-clang-offloading/libnestutil::::::::::::::::::
>>>>> ../libnestutil/libnestutil.so /usr/lib64/libgsl.so
>>>>> /usr/lib64/libgslcblas.so
>>>>> nvlink fatal   : Could not open input file '/tmp/get_mem-decc5d.cubin'
>>>>> clang-11: error: nvlink command failed with exit code 1 (use -v to see
>>>>> invocation)
>>>>> make[2]: *** [sli/libsli.so] Error 1
>>>>> make[2]: Leaving directory
>> `/home/usr4/c74014k/builds/nest-clang-offloading'
>>>>> make[1]: *** [sli/CMakeFiles/sli_lib.dir/all] Error 2
>>>>> make[1]: Leaving directory
>> `/home/usr4/c74014k/builds/nest-clang-offloading'
>>>>> make: *** [all] Error 2
>>>>> _______________________________________________
>>>>> Openmp-dev mailing list
>>>>> Openmp-dev at lists.llvm.org
>>>>> https://lists.llvm.org/cgi-bin/mailman/listinfo/openmp-dev
>>>>
>>>> _______________________________________________
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>>>> Openmp-dev at lists.llvm.org
>>>> https://lists.llvm.org/cgi-bin/mailman/listinfo/openmp-dev
>
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