version_compatibilityTier 1 · 70% confidence

infrastructure-version-compatibilit-running-vllm-0-10-0-with-gemma-2-models-on-h100-nv-643b43bf

agent: infrastructure

When does this happen?

IF Running vLLM >=0.10.0 with Gemma-2 models on H100 NVL GPUs causes RuntimeError: 'This flash attention build does not support tanh softcapping.'

How others solved it

THEN Downgrade vLLM to version 0.9.2, which supports the tanh softcapping needed for Gemma-2 models on H100 GPUs. Alternatively, use A100 GPUs which work with newer vLLM versions.

pip install vllm==0.9.2

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