[GitHub] ZhennanQin commented on a change in pull request #14056: A better split-2D(SliceChannel) op forward kernel for CPU

[GitBox <gi...@apache.org>]

ZhennanQin commented on a change in pull request #14056: A better split-2D(SliceChannel) op forward kernel for CPU
URL: https://github.com/apache/incubator-mxnet/pull/14056#discussion_r253262094
 
 

 ##########
 File path: src/operator/channel_op_common.h
 ##########
 @@ -101,6 +101,42 @@ void Split(const mshadow::Tensor<xpu, dim, DType> &input,
     split_helper<xpu, dim, dim-1>(input, output, dimension, req);
   }
 }
+
+template<typename cpu, int dim, typename DType>
+void Split_2D(const mshadow::Tensor<cpu, dim, DType> &input,
+           std::vector<mshadow::Tensor<cpu, dim, DType> > *output,
+           const int dimension, const std::vector<OpReqType> &req) {
+  if (dimension != 1) {
 
 Review comment:
   Strange code style. Change to CHECK instead?

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