[GitHub] [incubator-mxnet] rongzha1 commented on a change in pull request #16195: [mkldnn-v1.0] Add MKL-DNN activation

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rongzha1 commented on a change in pull request #16195: [mkldnn-v1.0] Add MKL-DNN activation
URL: https://github.com/apache/incubator-mxnet/pull/16195#discussion_r326451726
 
 

 ##########
 File path: src/operator/nn/mkldnn/mkldnn_act-inl.h
 ##########
 @@ -67,8 +63,28 @@ MKLDNNActForward &GetActForward(const ActivationParam& param,
 void MKLDNNActivationForward(const nnvm::NodeAttrs& attrs, const OpContext &ctx,
                              const NDArray &in_data, const OpReqType &req,
                              const NDArray &out_data);
+
+mkldnn::eltwise_backward::primitive_desc GetActBwdDescImpl(
+    const ActivationParam &param, const mkldnn::memory &input_mem,
+    const mkldnn::memory &diff_dst_memory);
+
+class MKLDNNActBackward {
+  std::shared_ptr<mkldnn::eltwise_backward> bwd;
 
 Review comment:
   Thanks. Will change it.

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