bartekkuncer commented on a change in pull request #20666:
URL: https://github.com/apache/incubator-mxnet/pull/20666#discussion_r792453753



##########
File path: src/operator/nn/mkldnn/mkldnn_convolution.cc
##########
@@ -113,16 +113,28 @@ 
std::shared_ptr<mkldnn::convolution_forward::primitive_desc> GetConvFwdImpl(
       [&param, &data, &weights, &output, &attr](const 
mkldnn::convolution_forward::desc& desc) {
         auto engine = CpuEngine::Get()->get_engine();
         try {
-          // MKL-DNN introduced padded formats since 0.15 which require more 
memory
-          // compared to the actual size of the tensor. Currently, MKL-DNN 
operators
-          // still reuse memory from memory planning, so here we need to 
select a
-          // suboptimal kernel for computation that has the expected memory 
size requirements
+          // MKLDNN introduced padded formats since 0.15 which require more
+          // memory compared to the actual size of the tensor. Currently, 
MKLDNN
+          // operators still reuse memory from memory planning, so here we need
+          // to select a suboptimal kernel for computation that has the 
expected
+          // memory size requirements
           auto conv_pd =
-              
std::make_shared<mkldnn::convolution_forward::primitive_desc>(desc, attr, 
engine);
-          while (conv_pd->dst_desc().get_size() != GetArraySize(output) ||
-                 conv_pd->src_desc().get_size() != GetArraySize(data) ||
-                 (!param.mkldnn_param.quantized &&
-                  conv_pd->weights_desc().get_size() != 
GetArraySize(weights))) {
+              std::make_shared<mkldnn::convolution_forward::primitive_desc>(
+                  desc, attr, engine);
+          while (
+              conv_pd->dst_desc().get_size() != GetArraySize(output) ||
+              conv_pd->src_desc().get_size() != GetArraySize(data) ||
+              (!param.mkldnn_param.quantized &&
+               conv_pd->weights_desc().get_size() != GetArraySize(weights)) ||
+              // With the upgrade of MKLDNN to version 2.4+
+              // tests/python/mkl/test_subgraph.py::test_pos_conv_add
+              // started failing. Switching away from primitive with weight
+              // mkldnn::format_tag ABcd4b16a4b is in place to temporairly fix

Review comment:
       ```suggestion
                 // mkldnn::format_tag ABcd4b16a4b in order to temporarily fix
   ```




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