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[Doc] Update docs on handling OOM (#15357)

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Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>
Signed-off-by: Roger Wang <ywang@roblox.com>
Co-authored-by: Roger Wang <ywang@roblox.com>
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Cyrus Leung
2025-03-25 05:29:34 +08:00
committed by GitHub
parent 3eb08ed9b1
commit 6dd55af6c9
6 changed files with 24 additions and 9 deletions
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docs/source/getting_started/v1_user_guide.md
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@@ -156,6 +156,9 @@ vLLM V1 is currently optimized for decoder-only transformers. Models requiring
For a complete list of supported models, see the [list of supported models](https://docs.vllm.ai/en/latest/models/supported_models.html).
## FAQ
## Frequently Asked Questions
TODO
**I'm using vLLM V1 and I'm getting CUDA OOM errors. What should I do?**
The default `max_num_seqs` has been raised from `256` in V0 to `1024` in V1. If you encounter CUDA OOM only when using V1 engine, try setting a lower value of `max_num_seqs` or `gpu_memory_utilization`.
On the other hand, if you get an error about insufficient memory for the cache blocks, you should increase `gpu_memory_utilization` as this indicates that your GPU has sufficient memory but you're not allocating enough to vLLM for KV cache blocks.