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cuda._is_in_bad_fork->_C._cuda_isInBadFork (#87317)

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Former is always available, while later is only available if PyTorch compiled with CUDA And if it does, then
```
$ python -c "import torch;print(torch._C._cuda_isInBadFork == torch.cuda._is_in_bad_fork)"
True
```

Fixes https://github.com/pytorch/torchdynamo/issues/1709 ( at least the symptom)

cc @jansel @lezcano @fdrocha
Pull Request resolved: https://github.com/pytorch/pytorch/pull/87317
Approved by: https://github.com/voznesenskym, https://github.com/albanD, https://github.com/soumith, https://github.com/jansel
This commit is contained in:
Nikita Shulga 2022-10-19 22:15:28 +00:00 committed by PyTorch MergeBot
parent 56b150ac63
commit c8889f4e10
1 changed files with 1 additions and 1 deletions
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2
torch/_dynamo/variables/tensor.py
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@ -332,7 +332,7 @@ class TensorVariable(VariableTracker):
)
elif (
proxy.node.target == torch._C._DisableFuncTorch
or proxy.node.target == torch._C._cuda_isInBadFork
or proxy.node.target == torch.cuda._is_in_bad_fork
):
from . import UserDefinedObjectVariable