pengzhao-intel commented on issue #11977: Feature request: Enable or Disable MKL-DNN in MXNet via environment variable at module load time URL: https://github.com/apache/incubator-mxnet/issues/11977#issuecomment-409794300 @bhavinthaker This is a good idea for the performance optimization. As @srochel suggestions, the MKL-DNN is enabled by default, and you can switch it off to see the performance change. But switch all MKL-DNN on/off may don't have too much difference with the built binary w/ and w/o MKL-DNN . One possible solution is to provide more fine level control (or auto-tuning), such as environment variable MXNET_MKLDNN_CONV_OFF=1, to turn on/off each MKL-DNN OP in the runtime. I think this aligns with @marcoabreu 's idea. In practice, the new feature will introduce lots of changes and we need more unit and coverage tests. We have to discuss the detailed plan. @zheng-da is there any impact for the subgraph if we change the OP in runtime? @TaoLv @zhennanqin
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