eric-haibin-lin commented on issue #9887: Non-blocking row_sparse_pull URL: https://github.com/apache/incubator-mxnet/pull/9887#issuecomment-370303541 This PR also fixed a bug in the original GPU "Unique" implementation, where the same pointer is passed as both the input/output to cub::unique. This results in incorrect output when the number of rowids is large. Fixed by storing the input/output in separate buffers.
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