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fix an outdated doc wrt CUDA_VISIBLE_DEVICES #7058

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loadams merged 2 commits into from
Feb 20, 2025
Merged

fix an outdated doc wrt CUDA_VISIBLE_DEVICES #7058

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fix an outdated doc wrt CUDA_VISIBLE_DEVICES
stas00 Feb 20, 2025
4b11f65
improve
stas00 Feb 20, 2025
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12 changes: 8 additions & 4 deletions docs/_tutorials/getting-started.md
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Expand Up @@ -316,10 +316,14 @@ local machine to discover the number of slots available. The `--include` and
`--exclude` arguments work as normal, but the user should specify 'localhost'
as the hostname.

Also note that `CUDA_VISIBLE_DEVICES` can't be used with DeepSpeed to control
which devices should be used. For example, to use only gpu1 of the current
node, do:
Also note that `CUDA_VISIBLE_DEVICES` can be used with `deepspeed` to control
which devices should be used on a single node. So either of these would work
to launch just on devices 0 and 1 of the current node:

```bash
deepspeed --include localhost:1 ...
deepspeed --include localhost:0,1 ...
```

```bash
CUDA_VISIBLE_DEVICES=0,1 deepspeed ...
```