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clarify that these should be run on two separate machines

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Andrej Karpathy 2023-01-16 06:02:46 +00:00
parent 9352df23de
commit 684800dd87
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train.py
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@ -9,7 +9,9 @@ To run with DDP on 4 gpus on 1 node, example:
$ torchrun --standalone --nproc_per_node=4 train.py
To run with DDP on 4 gpus across 2 nodes, example:
- Run on the first (master) node:
$ torchrun --nproc_per_node=8 --nnodes=2 --node_rank=0 --master_addr=123.456.123.456 --master_port=1234 train.py
- Run on the worker node:
$ torchrun --nproc_per_node=8 --nnodes=2 --node_rank=1 --master_addr=123.456.123.456 --master_port=1234 train.py
"""