Gheorghe-Teodor Bercea 06e08f0b0a [OpenMP][libomptarget] New reduction scheme for team reductions ... Summary: This patch adds a more sophisticated team reduction scheme to the OpenMP libomptarget-nvptx runtime. The scheme uses a fixed size global memory buffer whose length can be adjusted via compiler flag: ``` -fopenmp-cuda-teams-reduction-recs-num=1024 ``` The global buffer is a structure of arrays (with default size of 1024 each and controlled by the above flag), one array for each reduction variable. Values in the buffer are processed by the last team to finish executing the body of the target region. In addition to adding support for the new flag, the compiler also emits special functions used for the reduction of the intermediate reduction values. These changes will be added in a separate compiler patch following this one. Reviewers: ABataev, caomhin Reviewed By: ABataev Subscribers: guansong, jfb, jdoerfert, openmp-commits Tags: #openmp Differential Revision: https://reviews.llvm.org/D58409 llvm-svn: 354471		2019-02-20 14:55:55 +00:00
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nvptx	[OpenMP][libomptarget] New reduction scheme for team reductions	2019-02-20 14:55:55 +00:00
CMakeLists.txt	Update more file headers across all of the LLVM projects in the monorepo	2019-01-19 10:56:40 +00:00