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Set affinity to none/false in child processes
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Authored by jlpeyton on Jun 13 2017, 10:24 AM.

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Summary

Reset affinity to none (false for proc-bind-var) so that threads in the child
processes are not bound tightly, unless the user explicitly sets this in
KMP_AFFINITY/OMP_PROC_BIND, in child processes. This can improve
performance for scripting languages which fork for parallelism like Python's
multiprocessing module.

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Repository
rL LLVM

Event Timeline

jlpeyton created this revision.Jun 13 2017, 10:24 AM
This revision is now accepted and ready to land.Jun 13 2017, 10:33 AM
This revision was automatically updated to reflect the committed changes.