pytorch

2e0a8b75 - An implementation of torch.tile as requested in pytorch/pytorch#38349 (#47974)

An implementation of torch.tile as requested in pytorch/pytorch#38349 (#47974) Summary: The approach is to simply reuse `torch.repeat` but adding one more functionality to tile, which is to prepend 1's to reps arrays if there are more dimensions to the tensors than the reps given in input. Thus for a tensor of shape (64, 3, 24, 24) and reps of (2, 2) will become (1, 1, 2, 2), which is what NumPy does. I've encountered some instability with the test on my end, where I could get a random failure of the test (due to, sometimes, random value of `self.dim()`, and sometimes, segfaults). I'd appreciate any feedback on the test or an explanation for this instability so I can this. Pull Request resolved: https://github.com/pytorch/pytorch/pull/47974 Reviewed By: ngimel Differential Revision: D25148963 Pulled By: mruberry fbshipit-source-id: bf63b72c6fe3d3998a682822e669666f7cc97c58