ZhennanQin edited a comment on issue #13593: Low CPU usage of MXNet in subprocesses URL: https://github.com/apache/incubator-mxnet/issues/13593#issuecomment-452204685 @YutingZhang If you just want to utilize 100% cpu for each process, please try `export KMP_AFFINITY=granularity=fine,noduplicates`, it works on my environment. If you want enable openmp multi-threading to utilize >100% cpu for each process, you need to make below change for MXNet: https://github.com/ZhennanQin/incubator-mxnet/commit/48fe761f0268c316477fac23d005d26b29c65a47 Then you can use `export OMP_NUM_THREADS=4` to specify 4x cpu usage for each process. If you don't want to change MXNet and just want to increase the efficiency of MKL dot, you can try `export MKL_NUM_THREADS=4`. It only works for MKL library.
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