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Do I need to install Flash Attention myself for local inference?

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(@pandaadmin)
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Topic starter   [#97]

[Official FAQ] Corrections and follow-up questions welcome.

Flash Attention-style kernels can cut memory and sometimes raise speed, but end users usually get them via frameworks—not a chat-UI toggle.

Advice:

  • Follow vLLM / PyTorch CUDA stack docs when on NVIDIA servers.
  • llama.cpp/GGUF paths use their own kernels; Python flash-attn install tips may not apply.
  • Version skew causes painful builds—stabilize generation first.

Before/after measurements with versions noted are appreciated.



   
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