[Mosaic GPU] Add a basic test for running collectives on Torch tensors #32514
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superbobry
approved these changes
Oct 10, 2025
| os.environ["RANK"] = str(jax.process_index()) | ||
| os.environ["WORLD_SIZE"] = str(jax.process_count()) | ||
| os.environ["MASTER_ADDR"] = "localhost" | ||
| os.environ["MASTER_PORT"] = "5728" |
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Should we use portpicker or similar?
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I tried, but unfortunately portpicker doesn't seem to return the same value in all shards, leading to hangs...
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| def test_remote_semaphore(self): | ||
| if dist.get_world_size() != 2: | ||
| self.skipTest("Test assumes 2 devics") |
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