wkcn commented on issue #14607: split_and_load can now handle num_ctx > num_data. Github Issue #13909 URL: https://github.com/apache/incubator-mxnet/pull/14607#issuecomment-479478998 @mightydeveloper Thank you for the detailed explanation! Yes, only gradients for GPU 0, 1, 2 will be calculated. However, it seems that `trainer.step()` will update the weights by using all gradients on 5 GPU contexts. The gradients on GPU 3, 4 may be not zero-tensors.
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