pymc-devs/pymc
Only sample using a single thread when sampling multiple chains in parallel
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#5,453 opened on 2022/02/09
help wantedrequest discussionv4
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説明
My prior of what cores=4 does when calling pm.sample() is that pymc would use 4 of my cores. However, because of multi-threading this might not be the case. Furthermore, multi-threading is causing problems when running multiple chains in parallel: https://github.com/pymc-devs/pymc/issues/3140
I thus think we should set os.environ['OMP_NUM_THREADS'] = '1' if we're sampling on > 1 core.