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Fix minGPT multi-node GPU count check #1428

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Fix minGPT multi-node GPU count check #1428

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4 changes: 3 additions & 1 deletion distributed/minGPT-ddp/mingpt/main.py
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Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,9 @@ def main(cfg: DictConfig):
destroy_process_group()

if __name__ == "__main__":
_min_gpu_count = 2
# torchrun sets LOCAL_WORLD_SIZE to the number of workers on this node.
# Each local worker needs its own accelerator.
_min_gpu_count = int(os.environ.get("LOCAL_WORLD_SIZE", "2"))
if not verify_min_gpu_count(min_gpus=_min_gpu_count):
print(f"Unable to locate sufficient {_min_gpu_count} gpus to run this example. Exiting.")
sys.exit()
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