vandanavk commented on a change in pull request #12446: [WIP][Bugfix] Fix flaky 
topk
URL: https://github.com/apache/incubator-mxnet/pull/12446#discussion_r220280496
 
 

 ##########
 File path: src/operator/tensor/ordering_op-inl.h
 ##########
 @@ -455,8 +457,7 @@ void TopKImpl(const RunContext &ctx,
   // Cast `ret_indices` from int to real_t could introduce conversion error 
when the element_num
   // is large enough.
   if (param.ret_typ == topk_enum::kReturnMask) {
-    Tensor<xpu, 2, DType> ret_mask =
-      ret[0].get_with_shape<xpu, 2, DType>(Shape2(ret[0].Size(), 1), s);
+    Tensor<xpu, 1, DType> ret_mask = ret[0].FlatTo1D<xpu, DType>(s);
     ret_mask = scalar<DType>(0);
 
 Review comment:
   @sxjscience were you able to resolve the error?

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