[Openmp-commits] [PATCH] D65001: [OpenMP][libomptarget] Add support for unified memory for regular maps

[Gheorghe-Teodor Bercea via Phabricator via Openmp-commits]

gtbercea created this revision.
gtbercea added reviewers: ABataev, jdoerfert, Hahnfeld, AlexEichenberger, caomhin.
Herald added subscribers: openmp-commits, guansong.
Herald added a project: OpenMP.

This patch adds support for using unified memory in the case of regular maps that happen when a target region is offloaded to the device.

For cases where only a single version of the data is required then the host address can be used. When variables need to be privatized in any way or globalized, then the copy to the device is still required for correctness.


Repository:
  rOMP OpenMP

https://reviews.llvm.org/D65001

Files:
  libomptarget/include/omptargetplugin.h
  libomptarget/plugins/cuda/src/rtl.cpp
  libomptarget/plugins/generic-elf-64bit/src/rtl.cpp
  libomptarget/src/api.cpp
  libomptarget/src/device.cpp
  libomptarget/src/device.h
  libomptarget/src/omptarget.cpp
  libomptarget/src/rtl.h

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