anirudh2290 commented on issue #13602: Fix for import mxnet taking long time if multiple process launched URL: https://github.com/apache/incubator-mxnet/pull/13602#issuecomment-447261489 @pengzhao-intel yes i saw that issue. that issue checks for omp overhead serially so it launches different parallel section (with 2,..18 threads) serially. So I think for 36 cores omp runtime would try to reuse the already launched threads and not launch 170 threads. This can still be a problem when we fork the process into many subprocesses and we tried to disable operator tuning subprocesses but it wasn't trivial. Therefore the solution implemented here would be a good intermediate solution for a reasonable number of processes forked. We should revisit the long term solution to disable tuning in forked processes though.
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