Explain what torch.distributed.barrier does
OpenAIMachine Learning Engineer · Onsite
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This question evaluates understanding of PyTorch distributed synchronization primitives, process coordination, and concurrency control in distributed training workflows.
Question
In PyTorch distributed training, what does torch.distributed.barrier() do?
Follow-up questions
- 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?
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