[GitHub] szha commented on a change in pull request #11316: MXNET_FORCE_ADDTAKEGRAD to disable AddTakeGradLargeBatchCaller

[GitBox <gi...@apache.org>]

szha commented on a change in pull request #11316: MXNET_FORCE_ADDTAKEGRAD to disable AddTakeGradLargeBatchCaller
URL: https://github.com/apache/incubator-mxnet/pull/11316#discussion_r195914883
 
 

 ##########
 File path: src/operator/tensor/indexing_op.h
 ##########
 @@ -598,7 +598,12 @@ void EmbeddingOpBackward(const nnvm::NodeAttrs& attrs,
         uint64_t shape_out_prod =
           static_cast<uint64_t>(grad_out.shape_[0])*
           static_cast<uint64_t>(grad_out.shape_[1]);
-        if (shape_out_prod < (uint64_t)16384 && shape_in_prod < (uint64_t)16384) {
+
+        const char *type = getenv("MXNET_FORCE_ADDTAKEGRAD");
+        const bool default_addtakegrad = (type == nullptr);
 
 Review comment:
   shall we do this in constructor and keep it as a private variable instead?

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