DickJC123 commented on issue #14029: Out of memory error in 3d Conv for matrix splits > 10, CUDNN strange behaviour URL: https://github.com/apache/incubator-mxnet/issues/14029#issuecomment-459178708 I was able to repro this OOM on a 12G Pascal. At the point of failure, it was asking for a 10G temporary workspace! Since you've set MXNET_CUDNN_AUTOTUNE_DEFAULT=0, doesn't that say you're willing to accept what cudnnGet() returns for the algo, regardless of workspace?
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