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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2018/02/28 06:55:59 UTC

[GitHub] chengdazhi opened a new issue #9914: Gluon speed issus when input size varies across batches

chengdazhi opened a new issue #9914: Gluon speed issus when input size varies across batches
URL: https://github.com/apache/incubator-mxnet/issues/9914
 
 
   Hi. I have noticed that the gluon framework has speed issues when the input spatial size varies across batches. It causes an approximate **2x delay** on a single GPU, and makes **multiple GPUs to have little gain**. The framework discards previous GPU memory blocks when start processing a new batch, which leads to violent GPU memory fluctuations. 
   
   This problem is absent in previous non-gluon training systems.

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