[Openmp-commits] [PATCH] D103625: [OpenMP] Lazily assign root affinity

[Jonathan Peyton via Phabricator via Openmp-commits]

jlpeyton created this revision.
jlpeyton added reviewers: AndreyChurbanov, tlwilmar, hbae, Nawrin.
jlpeyton added a project: OpenMP.
Herald added subscribers: jfb, guansong, yaxunl.
jlpeyton requested review of this revision.
Herald added a reviewer: jdoerfert.
Herald added a subscriber: sstefan1.

Lazily set affinity for root threads. Previously, the root thread executing middle initialization would attempt to assign affinity to other existing root threads. This was not working properly as the `set_system_affinity()` function wasn't setting the affinity for the target thread. Instead, the middle initialization, which contains affinity initialization, thread was resetting the its own affinity using the target thread's affinity mask.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D103625

Files:
  openmp/runtime/src/kmp.h
  openmp/runtime/src/kmp_csupport.cpp
  openmp/runtime/src/kmp_ftn_entry.h
  openmp/runtime/src/kmp_runtime.cpp
  openmp/runtime/test/affinity/root-threads-affinity.c

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