pengwangucla commented on issue #8458: Synchronized Batch normalization in multi GPUs training URL: https://github.com/apache/incubator-mxnet/issues/8458#issuecomment-483922116 > There is no easy way to solve Sync BN. I have implemented it using PyTorch (http://hangzh.com/PyTorch-Encoding/notes/syncbn.html) by rewriting DataParallel and cross-GPU communication. I will implement MXNet Gluon version as well, probably release it early next year. HI Hang, I used your sync_bn implementation for mxnet symbol. However, it reduced the performance of my network. I wonder whether you have ever tried with symbol API with your sync_bn other than gluon. Thanks
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