Files

Gahow Wang 445e491123 Add vLLM v0.18.1 source tree with KV transfer abort fix

third_party/vllm/ now tracked in git for direct patch management.
Based on vLLM v0.18.1 release with one patch applied:

  vllm/v1/core/sched/scheduler.py:
    Replace fatal assert with graceful skip when KV transfer callback
    arrives for an already-aborted request during PD disaggregated serving.

Future vLLM modifications should be made directly in third_party/vllm/
and committed normally. The patches/ directory is kept as documentation
of what changed from upstream.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-05-22 00:30:38 +08:00

803 B

Raw Blame History

N-Gram Speculation

The following code configures vLLM to use speculative decoding where proposals are generated by matching n-grams in the prompt. For more information read this thread.

from vllm import LLM, SamplingParams

prompts = ["The future of AI is"]
sampling_params = SamplingParams(temperature=0.8, top_p=0.95)

llm = LLM(
    model="Qwen/Qwen3-8B",
    tensor_parallel_size=1,
    speculative_config={
        "method": "ngram",
        "num_speculative_tokens": 5,
        "prompt_lookup_max": 4,
    },
)
outputs = llm.generate(prompts, sampling_params)

for output in outputs:
    prompt = output.prompt
    generated_text = output.outputs[0].text
    print(f"Prompt: {prompt!r}, Generated text: {generated_text!r}")

803 B Raw Blame History

N-Gram Speculation

803 B

Raw Blame History