[GitHub] eric-haibin-lin commented on a change in pull request #11012: [WIP] leaky relu speed

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eric-haibin-lin commented on a change in pull request #11012: [WIP] leaky relu speed
URL: https://github.com/apache/incubator-mxnet/pull/11012#discussion_r191014378
 
 

 ##########
 File path: src/operator/leaky_relu-inl.h
 ##########
 @@ -115,11 +116,27 @@ class LeakyReLUOp : public Operator {
       case leakyrelu::kPReLU: {
         weight = in_data[leakyrelu::kGamma].get<xpu, 1, DType>(s);
         if (weight.shape_.Size() == 1) {
-          Assign(out, req[leakyrelu::kOut],
-                 F<mshadow_op::xelu>(data, mshadow::expr::broadcast_scalar(weight, out.shape_)));
+          MXNET_ASSIGN_REQ_SWITCH(req[leakyrelu::kOut], Req, {
+            mxnet_op::Kernel<mxnet_op::op_with_req<op::mshadow_op::xelu, Req>, xpu>::Launch(
+              s, in_data[leakyrelu::kData].Size(), out_data[leakyrelu::kOut].dptr<DType>(),
+              in_data[leakyrelu::kData].dptr<DType>(), DType(weight[0]));
 
 Review comment:
   Cannot access gpu ptr outside kernel

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