juliusshufan commented on issue #12591: USE_MKLDNN=1 is default in make build (mkldnn must be explicitly turned off) URL: https://github.com/apache/incubator-mxnet/pull/12591#issuecomment-423889618 ImageNet-1k training, we use the script under "example\image-classification", training executed on both GPU and CPU, with same hyper-parameters, without further tunings, training curses on GPU and CPU pretty aligned. The followings are corresponding to ResNet50 v1 and v2.  
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