[P/D] Sync with latest NIXL Integration PR vllm-project#17751

[tlrmchlsmth]

Sync with latest vllm-project#17751

local-completions (model=meta-llama/Llama-3.1-8B-Instruct,base_url=http://127.0.0.1:32917/v1/completions,num_concurrent=5,max_retries=3,tokenized_requests=False), gen_kwargs: (None), limit: 100.0, num_fewshot: None, batch_size: 1
|Tasks|Version|     Filter     |n-shot|  Metric   |   |Value|   |Stderr|
|-----|------:|----------------|-----:|-----------|---|----:|---|-----:|
|gsm8k|      3|flexible-extract|     5|exact_match|↑  | 0.80|±  |0.0402|
|     |       |strict-match    |     5|exact_match|↑  | 0.72|±  |0.0451|

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