pengzhao-intel edited a comment on issue #13515: MKLDNN Perplexity Issue URL: https://github.com/apache/incubator-mxnet/issues/13515#issuecomment-443971093 @azai91 @lupesko I am trying with 1.4.x and latest master and the PPL is below than threshold (203) from my local training. commit d772a4b64e600eb55e019cdaec4e5a09de7643e6 Author: Anirudh Subramanian <[email protected]> Date: Mon Dec 3 15:39:53 2018 -0800 > 2018-12-04 12:27:47,825 Epoch[29] Train-perplexity=141.206610 > 2018-12-04 12:27:47,825 Epoch[29] Time cost=174.113 > 2018-12-04 12:27:53,691 Epoch[29] Validation-perplexity=189.776305 commit a29185a068568dba33452214e6cb017500a4b561 Author: Aaron Markham <[email protected]> Date: Wed Nov 28 17:46:10 2018 -0800 > 2018-12-04 12:50:37,061 Epoch[29] Train-perplexity=143.439135 > 2018-12-04 12:50:37,061 Epoch[29] Time cost=200.166 > 2018-12-04 12:50:42,988 Epoch[29] Validation-perplexity=189.409277
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