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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2020/07/01 00:11:15 UTC

[GitHub] [incubator-mxnet] stu1130 commented on issue #18646: BatchNorm with axis=-1 is much slower than axis=1

stu1130 commented on issue #18646:
URL: https://github.com/apache/incubator-mxnet/issues/18646#issuecomment-652111953


   @wkcn Thanks for you detailed explanation. 
   So I think there are two phrases. 
   1. enable cuDNN when axis is not 1
   2. use `cudnnBatchNormalizationForwardTrainingEx` for NHWC case (I checked the source code, we are all using cudnnBatchNormalizationForwardTraining)


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