samskalicky edited a comment on issue #12255: Pretty high cpu load when import mxnet URL: https://github.com/apache/incubator-mxnet/issues/12255#issuecomment-444966304 Hi @larroy , setting that env var does seem to avoid the issue. Heres the testing with and without it: ``` $ python parallel_test.py 1: 3.71833109856 2: 2.17086696625 3: 46.48721385 ubuntu@ip-172-31-83-54:~$ export MXNET_USE_OPERATOR_TUNING=0 ubuntu@ip-172-31-83-54:~$ python parallel_test.py 1: 0.798185110092 2: 0.792401075363 3: 0.818596124649 ``` Notice that in the 2nd run with the env var, that all runs take ~0.8 seconds @cjolivier01 what are the performance implications for setting this env var? Does it only affect non-MKL/MKLDNN operators executing on CPU context?
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