[Usage]: Why `use_beam_search` is eliminated in `vllm.SamplingParams` from v0.6.3?

[BAI-Yeqi]

Your current environment

I am asking a general API question regarding vllm, therefore, env info is not needed.

How would you like to use vllm

I want to ask why use_beam_search is eliminated in vllm.SamplingParams from v0.6.3 (https://docs.vllm.ai/en/v0.6.3/dev/sampling_params.html)?

How can we control the usage of beam search from v0.6.3 onwards?

To the best of my knowledge, use_beam_search is supported in all versions from v0.4.0.post1 to v0.6.2.

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[noooop]

PTAL

• [RFC] Drop beam search support #6226

• [RFC]: Reimplement and separate beam search on top of vLLM core #8306

• [Frontend] merge beam search implementations #9296

[BAI-Yeqi]

@noooop This is very informative. Thanks a lot!