Commit Graph

2 Commits

Author SHA1 Message Date
Tristan Rice
7f4c3e7d2f distributed/serialization: support zero sized tensors (#164198)
Fixes
```
[4] ValueError: both buffer length (0) and count (-1) must not be 0
```

Test plan:

```
pytest test/distributed/test_serialization.py
```

Pull Request resolved: https://github.com/pytorch/pytorch/pull/164198
Approved by: https://github.com/amirafzali
2025-09-30 08:11:29 +00:00
Tristan Rice
23af9dde4d distributed/serialization: add experimental streaming torch.save/load methods (#146555)
Summary:

This is intended for use with torchft when we need to do a streaming state dict transfer. This is strictly superior to the prior streaming method in torchft as this supports all tensor subclasses such as DTensor.

This supports 100% of the inputs to torch.save/load but is not wire compatible nor intended to have any backwards compatibility.

Security wise this fully supports weights_only and defaults to True. It does use pickle for some metadata but uses weights_only for the metadata.

Adapted from:

https://github.com/pytorch/torchft/pull/101

https://github.com/pytorch/torchft/pull/54

Test Plan:

pytest test/distributed/test_serialization.py

Pull Request resolved: https://github.com/pytorch/pytorch/pull/146555
Approved by: https://github.com/fegin, https://github.com/mikaylagawarecki

Co-authored-by: Krishn Parasar <76171905+Krishn1412@users.noreply.github.com>
2025-02-07 18:08:11 +00:00