pengzhao-intel commented on a change in pull request #15870: update support
MKLDNN BN conditions
URL: https://github.com/apache/incubator-mxnet/pull/15870#discussion_r313207945
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File path: src/operator/nn/batch_norm.cc
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@@ -420,8 +419,7 @@ void BatchNormGradComputeExCPU(const nnvm::NodeAttrs
&attrs,
mxnet::TShape shape = inputs[0].shape();
// MKLDNN batchnorm only works well on the special MKLDNN layout.
- if (SupportMKLDNNBN(inputs[0], param)
- && (inputs[3].IsMKLDNNData() || inputs[0].IsMKLDNNData())) {
+ if (SupportMKLDNNBN(inputs[0], param)) {
Review comment:
why we don't need to check these two conditions?
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