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[UMBP][1/10] Add shared connector, runtime contracts, and request lifecycle - #61789

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tjtanaa merged 2 commits into
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charxwu:review/umbp-split-1a-connector
Oct 15, 2026
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tjtanaa merged 2 commits into
vllm-project:mainfrom
charxwu:review/umbp-split-1a-connector

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@charxwu charxwu commented Oct 15, 2026

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This PR is split from the original full PR: #58568

Add the runtime-neutral object model, transfer plans, and IUMBPRuntime scheduler/worker contracts.
Add the UMBPStoreConnector facade and the request lifecycle for lookup, load, store, and block ownership.
Keep UMBP transport out of the scheduler and model runner. This slice registers no MORI backend.

Implementation only. Contract tests are in the next PR:

.venv/bin/python -m pytest -q tests/v1/kv_connector/unit/test_umbp_core.py

Commit: 2948e7ec7f. Review slice of vllm-project/vllm#58568 for RFC #57187.

AI assistance was used to draft this description. The submitting human reviews the code.

Introduce the runtime-neutral object model, connector facade, scheduler and worker lifecycle, transfer metadata, block ownership, and runtime adapter contracts.

Signed-off-by: CharlesWu <Charles.Wu@amd.com>
Co-authored-by: Yichao Zhu <Yichao.Zhu@amd.com>
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charxwu marked this pull request as ready for review October 15, 2026 09:28

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@tjtanaa tjtanaa added ready ONLY add when PR is ready to merge/full CI is needed verified Run pre-commit for new contributors without triggering other tests labels Oct 15, 2026
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✅ @charxwu, CI is now available for this PR.

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LGTM. Let's iterate again when we land the PR with unit test.

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tjtanaa commented Oct 15, 2026

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/ci run

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tjtanaa enabled auto-merge (squash) October 15, 2026 14:07
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✅ Triggered Buildkite CI #95144 for commit d52bf7e18030.

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tjtanaa merged commit a97d19d into vllm-project:main Oct 15, 2026
33 checks passed
michael-gpu pushed a commit to practical-inference/vllm-ampere-extended that referenced this pull request Oct 20, 2026
…ecycle (vllm-project#61789)

Signed-off-by: CharlesWu <Charles.Wu@amd.com>
Co-authored-by: Yichao Zhu <Yichao.Zhu@amd.com>
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