[Openmp-commits] [PATCH] D136103: OpenMP asynchronous memory copy support

[Jisheng Zhao via Phabricator via Openmp-commits]

jz10 created this revision.
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Herald added subscribers: guansong, yaxunl.
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Herald added projects: clang, OpenMP.

We introduced the implementation of supporting asynchronous routines with depend objects specified in Version 5.1 of the OpenMP Application Programming Interface. In brief, these routines omp_target_memcpy_async and omp_target_memcpy_rect_async perform asynchronous (nonblocking) memory copies between any
combination of host and device pointers. The basic idea is to create the implicit tasks to carry the memory copy calls and handle dependencies specified by depend objects. The implicit tasks are executed via hidden helper thread in OpenMP runtime.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D136103

Files:
  clang/docs/ReleaseNotes.rst
  openmp/libomptarget/src/api.cpp
  openmp/libomptarget/src/exports
  openmp/libomptarget/src/private.h

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