pytorch

26f67e7a - fix scatter CPU kernel when (input size, src size) > index size (#25839)

fix scatter CPU kernel when (input size, src size) > index size (#25839) Summary: fixes https://github.com/pytorch/pytorch/issues/25836 According to doc, https://pytorch.org/docs/stable/tensors.html#torch.Tensor.scatter_ `index` must have the smallest size and we should iterate over `index` instead of `tensor`. cc: dlibenzi Pull Request resolved: https://github.com/pytorch/pytorch/pull/25839 Differential Revision: D17269116 Pulled By: ailzhang fbshipit-source-id: 0e8569fed6c0d2dd70e4e3ec5d29d8730cd2ae8f