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ezyang
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Sep 18, 2018
| bool gradIsSparse = false; | ||
| if (grad.type().scalarType() != at::kHalf) { | ||
| auto& sparseType = var.type().toBackend(var.is_cuda() ? Backend::SparseCUDA : Backend::SparseCPU); | ||
| gradIsSparse = grad.type() == sparseType; |
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ezyang
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If you want me to merge this I'm OK, but I think my preferred solution would be a smidge more robust to an eventual future where we do have half-precision sparse tensors.
Maybe you can construct a at::getVariableTypeOpt call from scratch, and then just test if the pointer is null or not, as a more robust patch.
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@ezyang can this go in? |
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soumith is landing this pull request. If you are a Facebook employee, you can view this diff on Phabricator.
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currently grad assignment for half type fails with a misleading RuntimeError