* Support for native Torch AMP and channels_last memory format added to train/validate scripts (`--channels-last`, ``--native-amp` vs `--apex-amp`)
* Support for native Torch AMP and channels_last memory format added to train/validate scripts (`--channels-last`, `--native-amp` vs `--apex-amp`)
* Models tested with channels_last on latest NGC 20.08 container. AdaptiveAvgPool in attn layers changed to mean((2,3)) to work around bug with NHWC kernel.