An error about cuDNN:CUDNN_STATUS_ALLOC_FAILED about mc-cnn HOT 4 OPEN

I have slove this problem ,and anthor problem about cuda complie setting.It run on my computer now. Thank you for sharing code!

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@Udonnoodle , Hi, I met a similar problem after I update the torch version to the newest one, the error is as follows: could you help me out?

My cuda is v7.5 and I use cudnnV7.0
Thanks a lot !

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I solved the problem by comment 'cudnn.benchmark=True', but I don't know why.

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cudnn.benchmark=True
on the doc, it says:
uses the inbuilt cudnn auto-tuner to find the fastest convolution algorithms.
If this is set to false, uses some in-built heuristics that might not always be fastest.

by default cudnn.benchmark is set to false. Setting to true will improve performance, at the expense of using more memory. The input shape should be the same for each batch, otherwise autotune will re-run for each batch, causing a huge slow-down.

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