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Improve performance of #pragma omp single
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Authored by tlwilmar on Jun 30 2016, 7:51 AM.

Details

Summary

Performance of single was considerably worse than plain barrier.
Adding a check to the code before the atomic compare and store helped
considerably.

Patch by Terry Wilmarth.

Diff Detail

Repository
rL LLVM

Event Timeline

tlwilmar updated this revision to Diff 62360.Jun 30 2016, 7:51 AM
tlwilmar retitled this revision from to Improve performance of #pragma omp single.
tlwilmar updated this object.
tlwilmar added reviewers: AndreyChurbanov, hbae.
tlwilmar set the repository for this revision to rL LLVM.
tlwilmar added a subscriber: openmp-commits.
hbae accepted this revision.Jun 30 2016, 8:07 AM
hbae edited edge metadata.

LGTM.

This revision is now accepted and ready to land.Jun 30 2016, 8:07 AM
This revision was automatically updated to reflect the committed changes.