apeforest commented on a change in pull request #15948: Fix a memory
misalignment in topk operator
URL: https://github.com/apache/incubator-mxnet/pull/15948#discussion_r316402119
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File path: src/operator/tensor/ordering_op-inl.h
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@@ -414,30 +414,28 @@ void TopKImpl(const RunContext &ctx,
<< element_num << ", but the selected index_t can only represent "
<< mxnet::common::MaxIntegerValue<index_t>() << " elements";
Tensor<xpu, 3, DType> dat = src.FlatTo3D<xpu, DType>(axis, axis, s);
- size_t temp_size = 0;
- // Temp space needed by the gpu-based full sorts.
- temp_size = std::max(temp_size,
- mxnet::op::SortByKeyWorkspaceSize<int, int, xpu>(src.Size()));
- temp_size = std::max(temp_size,
- mxnet::op::SortByKeyWorkspaceSize<int, DType, xpu>(src.Size()));
- temp_size = std::max(temp_size,
- mxnet::op::SortByKeyWorkspaceSize<DType, int, xpu>(src.Size()));
+ // Temp space needed by the full sorts.
+ size_t temp_size = std::max(
+ mxnet::op::SortByKeyWorkspaceSize<index_t, DType, xpu>(src.Size()),
+ mxnet::op::SortByKeyWorkspaceSize<DType, index_t, xpu>(src.Size()));
Review comment:
Done
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