piiswrong commented on a change in pull request #7772: Use memcopy instead of
assigning each individual element
URL: https://github.com/apache/incubator-mxnet/pull/7772#discussion_r137604171
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File path: src/operator/tensor/cast_storage-inl.h
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@@ -120,9 +119,13 @@ struct CastStorageRspDnsKernel {
IType rid = idx[i];
dim_t dns_offset = rid * row_length;
dim_t rsp_offset = i * row_length;
- for (dim_t col = 0; col < row_length; col++) {
- dns[dns_offset + col] = data[rsp_offset + col];
- }
+ #if defined(__CUDACC__)
+ for (dim_t col = 0; col < row_length; col++) {
+ dns[dns_offset + col] = data[rsp_offset + col];
+ }
+ #else
+ memcpy(dns + dns_offset, data + rsp_offset, sizeof(DType) * row_length);
Review comment:
Yes we need to have a mxnet wrapper.
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