Dynamo support for collective broadcast op

[zpcore]

Add dynamo path for torch.distributed.boardcast.

This PR is a requirement for pytorch/xla#7956.

cc @XilunWu @H-Huang @awgu @kwen2501 @wanchaol @fegin @fduwjj @wz337 @wconstab @d4l3k @c-p-i-o

[pytorch-bot]

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🧪 See artifacts and rendered test results at hud.pytorch.org/pr/135171

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✅ You can merge normally! (1 Unrelated Failure)

As of commit a34c4fb with merge base 30b9894 ():

FLAKY - The following job failed but was likely due to flakiness present on trunk:

• pull / linux-focal-py3.11-clang10 / test (default, 4, 4, linux.2xlarge) (gh) (detected as infra flaky with no log or failing log classifier)

This comment was automatically generated by Dr. CI and updates every 15 minutes.

[zpcore]

Add @JackCaoG in the review.

[JackCaoG]

@wconstab wondering if you can find anyone in your team can help review this pr?

[zpcore]

@pytorchbot label "release notes: distributed (c10d)"

[zpcore]

The failing test job seems didn't get launched.

[github-actions]

Looks like this PR hasn't been updated in a while so we're going to go ahead and mark this as Stale.
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[zpcore]

@pytorchbot rebase

[zpcore]

PyTorch/XLA is still requesting the feature, reopen. cc @bfolie

[pytorchmergebot]

@pytorchbot started a rebase job onto refs/remotes/origin/viable/strict. Check the current status here

[pytorchmergebot]

PR #135171 is closed, won't rebase