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Summary: A missing environment variable raised a missing key error. Now it raises a more descriptive error of the actual problem, for example: ValueError: Error initializing torch.distributed using env:// rendezvous: environment variable WORLD_SIZE expected, but not set Pull Request resolved: pytorch#11782 Differential Revision: D9888962 fbshipit-source-id: 1134175e30c123043328c9bccff1ad73c9e19ce1
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Summary:
A missing environment variable raised a missing key error. Now it
raises a more descriptive error of the actual problem, for example:
ValueError: env:// rendezvous: WORLD_SIZE not set
Differential Revision: D9888962