[GitHub] rahul003 commented on a change in pull request #10845: [MXNET-406] support init/pull dense weight, push row_sparse grad in kvstore

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rahul003 commented on a change in pull request #10845: [MXNET-406] support init/pull dense weight, push row_sparse grad in kvstore
URL: https://github.com/apache/incubator-mxnet/pull/10845#discussion_r187449223
 
 

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 File path: src/kvstore/comm.h
 ##########
 @@ -228,7 +244,11 @@ class CommCPU : public Comm {
       NDArray retained_cpu = (is_same_ctx && is_diff_var) ? *out :
           NDArray(kRowSparseStorage, src.shape(), src.ctx(), true,
                   src.dtype(), src.aux_types());
-
+      if (!is_diff_var) {
+        common::LogOnce("The output of row_sparse_pull on key " + std::to_string(key) +
+                        "refers to the same NDArray as the one stored in KVStore."
+                        "Incorrect result may be generated.");
 
 Review comment:
   What does this refer to? "Incorrect result may be generated" is unclear

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