We introduced a new mode that schedule multiple GPU steps in advance, reducing CPU overhead (#7000, #7387, #7452, #7703). Initial result shows 20% improvements in QPS for a single GPU running 8B and 30B models. You can set --num-scheduler-steps 8 as a parameter to the API server (via vllm serve) or AsyncLLMEngine. We are working on expanding the coverage to LLM class and aiming to turning it on by default
Various enhancements:
Use flashinfer sampling kernel when avaiable, leading to 7% decoding throughput speedup (#7137)
Reduce Python allocations, leading to 24% throughput speedup (#7162, 7364)
Improvements to the zeromq based decoupled frontend (#7570, #7716, #7484)
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Bumps vllm from 0.5.4 to 0.5.5.
Release notes
Sourced from vllm's releases.
... (truncated)
Commits
09c7792
Bump version to v0.5.5 (#7823)f1df5db
[Misc] Updatemarlin
to use vLLMParameters (#7803)35ee2ad
[github][misc] promote asking llm first (#7809)e25fee5
[BugFix] Fix server crash on empty prompt (#7746)faeddb5
[misc] Add Torch profiler support for CPU-only devices (#7806)fc5ebbd
[Hardware][Intel GPU] refactor xpu_model_runner for tp (#7712)c01a6cb
[Ray backend] Better error when pg topology is bad. (#7584)b903e1b
[Frontend] error suppression cleanup (#7786)a152246
[Misc] fix typo in triton import warning (#7794)666ad0a
[ci] Cleanup & refactor Dockerfile to pass different Python versions and scca...Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
@dependabot rebase
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