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Multi-dimensional sum is already implemented, and it's trivial to implement mean in terms of sum, so just do it.

Bonus: Fix incomplete language in the torch.sum documentation which doesn't take into account multiple dimensions when describing unsqueeze (at the same time as introducing similar language in torch.mean).

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@umanwizard has imported this pull request. If you are a Facebook employee, you can view this diff on Phabricator.

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@umanwizard has imported this pull request. If you are a Facebook employee, you can view this diff on Phabricator.

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fbgemm submodule has been accidentally updated

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LGTM, although I'm not familiar with the torch/csrc/jit/passes/shape_analysis.cpp code.

// Additionally:
// - First input should be the only tensor input
// - has a bool keepdim argument
static const register_formula_for multidim_reduce_ops {
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@zou3519 are you familiar with this file? Can you take a look at this change?

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@colesbury shape prop lgtm

zdevito pushed a commit to zdevito/ATen that referenced this pull request Nov 28, 2018
Summary:
Multi-dimensional `sum` is already implemented, and it's trivial to implement `mean` in terms of `sum`, so just do it.

Bonus: Fix incomplete language in the `torch.sum` documentation which doesn't take into account multiple dimensions when describing `unsqueeze` (at the same time as introducing similar language in `torch.mean`).
Pull Request resolved: pytorch/pytorch#14252

Differential Revision: D13161157

Pulled By: umanwizard

fbshipit-source-id: c45da692ba83c0ec80815200c5543302128da75c
@ezyang ezyang added the merged label Jun 25, 2019
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5 participants