sxjscience commented on issue #10453: Bug of CuDNN RNN with variable sequence length URL: https://github.com/apache/incubator-mxnet/issues/10453#issuecomment-381819126 It's related to https://github.com/pytorch/pytorch/issues/953. `cudnnSetDropoutDescriptor` uses a large amount of GPU memory. One choice to solve this problem is to create a DropoutDescriptor when we create a stream and always use cudnnGetDropoutDescriptor
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