Explain what torch.distributed.barrier does

Q: Explain what torch.distributed.barrier does

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Question

Question

In PyTorch distributed training, what does torch.distributed.barrier() do?

Follow-ups

Give an example of when you would use it.
What are the risks of calling it incorrectly?
How does it relate to deadlocks and performance?

Explain what torch.distributed.barrier does

Question

Follow-ups

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