[None][chore] promote flashinfer-prims-ts source from #20298 by yuxianq · Pull Request #20731 · NVIDIA/TensorRT-LLM

yuxianq · 2026-10-21T05:48:52Z

Dev Engineer Review

The change updates only the flashinfer-prims-ts vendor branch in 3rdparty/vendor_sources.lock.yaml. The source SHA, vendor files, compatibility patch, and digests remain unchanged. No runtime, API, dependency, or source-code changes are reported.

QA Engineer Review

No test changes.

Per-File QA Perspective

3rdparty/vendor_sources.lock.yaml: The vendor source branch changes to trtllm-prims-ts-dev-20261012. QA should verify source materialization and lock integrity; no runtime behavior changes are expected.

Description

Promote the exact source revision reviewed in #20298.
Only the selected vendor lock URL/branch changes. The source SHA, selected vendor files, compatibility patch, and digests are unchanged.

Test Coverage

Source materialization and lock-only diff verified by the promotion tool. No new kernel behavior. The tool posts /bot skip --comment "skip CI since no code change" to request the bot's no-code-change CI path. Automatic GitHub checks and required reviews still apply.

PR Checklist

No runtime/API/dependency changes.
Immutable source pin and vendor content preserved.
Please check this after reviewing the above items as appropriate for this PR.

Required squash commit message

Preserve the following message, including the provenance block and DCO sign-off.

[None][chore] promote flashinfer-prims-ts source from #20298

----- BEGIN VENDOR PROMOTION V1 -----
{
  "attribution": {
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      "method": "same-edits",
      "upstream_base": "2895577720741ddfedff118202c89584996b8875",
      "upstream_head": "14770b419ec3261c2afc55e401051c92bb7f3fd9"
    },
    "ae3851ab5f958ba22f154059df5b38321f6369d2": {
      "method": "source-series-aggregate",
      "upstream_base": "2895577720741ddfedff118202c89584996b8875",
      "upstream_head": "14770b419ec3261c2afc55e401051c92bb7f3fd9"
    }
  },
  "attribution_scope": {
    "include": [
      "**/*.py"
    ],
    "source": "flashinfer/attention/prims_ts"
  },
  "canonical_branch": "trtllm-prims-ts-dev-20261012",
  "canonical_url": "https://github.com/yuxianq/flashinfer.git",
  "changes": [
    {
      "commits": [
        "6b00497398f491136be91fb0e60ac3f314da53ba",
        "ae3851ab5f958ba22f154059df5b38321f6369d2"
      ],
      "upstream_base": "2895577720741ddfedff118202c89584996b8875",
      "upstream_head": "14770b419ec3261c2afc55e401051c92bb7f3fd9",
      "upstream_merge": "f57c58b898cc0f96ddea03066a3fd66ad201337a",
      "upstream_pr": "https://github.com/flashinfer-ai/flashinfer/pull/6482"
    }
  ],
  "consumer_base": "release/1.3",
  "consumer_merge": "b053431a1a62303d5c3b7a3d9d5af7f82c7c76d0",
  "consumer_pr": "https://github.com/NVIDIA/TensorRT-LLM/pull/20298",
  "contributor_metadata": {
    "metadata_digest": "95942a2db5f1373b658ac1a2010629f282614a3ca905b68fc64f054d39c8129e",
    "pr_author": "yuxianq",
    "source_head": "a7d6732b1e451e67e1d5396251395f6a742a7e4f"
  },
  "kind": "promotion",
  "previous": "ae312f7cc1723b06fda5168105ade0f328ee47d8",
  "promoted": "ae3851ab5f958ba22f154059df5b38321f6369d2",
  "source_branch": "bug-6791733-prims-ts-cuda-graph--source-q-tma-release13",
  "source_url": "https://github.com/yuxianq/flashinfer.git",
  "upstream_base": "ae312f7cc1723b06fda5168105ade0f328ee47d8",
  "upstream_branch": "main",
  "upstream_observed_main": "a3f2525e39dffc98dcad4ce50706641a580358f0",
  "upstream_repository": "flashinfer-ai/flashinfer",
  "vendor": "flashinfer-prims-ts",
  "version": 1
}
----- END VENDOR PROMOTION V1 -----

Signed-off-by: Yuxian Qiu <142763828+yuxianq@users.noreply.github.com>

----- BEGIN VENDOR PROMOTION V1 ----- { "attribution": { "6b00497398f491136be91fb0e60ac3f314da53ba": { "method": "same-edits", "upstream_base": "2895577720741ddfedff118202c89584996b8875", "upstream_head": "14770b419ec3261c2afc55e401051c92bb7f3fd9" }, "ae3851ab5f958ba22f154059df5b38321f6369d2": { "method": "source-series-aggregate", "upstream_base": "2895577720741ddfedff118202c89584996b8875", "upstream_head": "14770b419ec3261c2afc55e401051c92bb7f3fd9" } }, "attribution_scope": { "include": [ "**/*.py" ], "source": "flashinfer/attention/prims_ts" }, "canonical_branch": "trtllm-prims-ts-dev-20261012", "canonical_url": "https://github.com/yuxianq/flashinfer.git", "changes": [ { "commits": [ "6b00497398f491136be91fb0e60ac3f314da53ba", "ae3851ab5f958ba22f154059df5b38321f6369d2" ], "upstream_base": "2895577720741ddfedff118202c89584996b8875", "upstream_head": "14770b419ec3261c2afc55e401051c92bb7f3fd9", "upstream_merge": "f57c58b898cc0f96ddea03066a3fd66ad201337a", "upstream_pr": "flashinfer-ai/flashinfer#6482" } ], "consumer_base": "release/1.3", "consumer_merge": "b053431a1a62303d5c3b7a3d9d5af7f82c7c76d0", "consumer_pr": "NVIDIA#20298", "contributor_metadata": { "metadata_digest": "95942a2db5f1373b658ac1a2010629f282614a3ca905b68fc64f054d39c8129e", "pr_author": "yuxianq", "source_head": "a7d6732b1e451e67e1d5396251395f6a742a7e4f" }, "kind": "promotion", "previous": "ae312f7cc1723b06fda5168105ade0f328ee47d8", "promoted": "ae3851ab5f958ba22f154059df5b38321f6369d2", "source_branch": "bug-6791733-prims-ts-cuda-graph--source-q-tma-release13", "source_url": "https://github.com/yuxianq/flashinfer.git", "upstream_base": "ae312f7cc1723b06fda5168105ade0f328ee47d8", "upstream_branch": "main", "upstream_observed_main": "a3f2525e39dffc98dcad4ce50706641a580358f0", "upstream_repository": "flashinfer-ai/flashinfer", "vendor": "flashinfer-prims-ts", "version": 1 } ----- END VENDOR PROMOTION V1 ----- Signed-off-by: Yuxian Qiu <142763828+yuxianq@users.noreply.github.com>

yuxianq · 2026-10-21T05:48:58Z

/bot skip --comment "skip CI since no code change"

coderabbitai · 2026-10-21T05:50:53Z

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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Review profile: CHILL
Plan: Enterprise
Run ID: 636e60d3-2c0b-478c-b559-69aeed76ad16

📥 Commits

Reviewing files that changed from the base of the PR and between b053431 and 6fb4a2c.

📒 Files selected for processing: 1

3rdparty/vendor_sources.lock.yaml

Included review availability: This review used your included allowance. Your plan provides up to 12 included reviews per hour; 11 remain after this review.

Walkthrough

The vendor source lockfile now points flashinfer-prims-ts to the trtllm-prims-ts-dev-20261012 branch instead of the previous branch.

Changes

Vendor source branch update

Layer / File(s)	Summary
Update vendor branch reference `3rdparty/vendor_sources.lock.yaml`	The `flashinfer-prims-ts` branch reference changes to `trtllm-prims-ts-dev-20261012`.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~2 minutes

Change: Other

Merge Risk: ⚪ Minimal · up to 6fb4a

No actionable merge-blocking risk is identified.

Pre-merge checks: 5

Check name	Status	Explanation
Title check		The title follows the required format and clearly identifies the promotion of the flashinfer-prims-ts source from PR `#20298`.
Description check		The description explains the purpose, scope, test coverage, CI handling, checklist status, and required squash commit metadata. It provides sufficient information for this lock-only promotion.
Docstring Coverage		No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)

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tensorrt-cicd · 2026-10-21T05:56:45Z

PR_Github #79545 [ skip ] triggered by Bot. Commit: 6fb4a2c Link to invocation

yuxianq · 2026-10-21T06:04:59Z

@farazkh80, could you help to review this PR as trt-llm-torch-attention-devs? Thanks~

Assignment explanation

Components	integration/dependencies (100%)
Tags	None identified
PR effort	1 points — A single mechanical lockfile edit requires checking that the source pin remains unchanged. The provenance narrative does not increase attention-code review scope.
Affinity (0–1)	0.500 component/tag match
Outstanding points at selection	30 → 31 (+1)
Points already reserved on this PR	0
Effective weight	1
Completed review points (preceding 168 hours)	63
Combined points after assignment	94
Demand-derived target	69.00 points (soft share)
Additional fair share before assignment	0.00 points
Share explanation	Whole PR / qualification or coverage constraint exceeds a soft share; assignment is allowed.
Selection rule	balance-first maintenance
Assignment scope (farazkh80)	all

Affinity and workload are snapshots at selection, not live counters. Existing reservations on this PR are counted once.

tensorrt-cicd · 2026-10-21T06:06:10Z

PR_Github #79545 [ skip ] completed with state SUCCESS. Commit: 6fb4a2c
Skipping testing for commit 6fb4a2c

Link to invocation

yihwang-nv

LGTM

github-actions · 2026-10-21T06:17:23Z

Automatically added "ci: full pre-merge approved" because this PR has satisfied the required GitHub review approvals. Unresolved review conversations and other required checks remain independent merge requirements.

yuxianq requested review from a team as code owners October 21, 2026 05:48

yuxianq requested review from ZhanruiSunCh, heyuhhh, lfr-0531 and tburt-nv October 21, 2026 05:48

github-actions Bot assigned yuxianq Oct 21, 2026

yuxianq enabled auto-merge (squash) October 21, 2026 05:49

yuxianq requested review from farazkh80 and removed request for heyuhhh and lfr-0531 October 21, 2026 06:05

yihwang-nv approved these changes Oct 21, 2026

View reviewed changes

yuxianq merged commit 688e8fd into NVIDIA:release/1.3 Oct 21, 2026
13 of 14 checks passed

trtllm-agent added the ci: full pre-merge approved label Oct 21, 2026

yunruis mentioned this pull request Oct 21, 2026

[None][feat] Add the PrimTS native sparse MLA FMHA for DeepSeek-V4 generation and enable it by default on SM100 #20209

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[None][chore] promote flashinfer-prims-ts source from #20298 - #20731

[None][chore] promote flashinfer-prims-ts source from #20298#20731
yuxianq merged 1 commit into
NVIDIA:release/1.3from
yuxianq:chore/flashinfer-prims-ts-promote-20298-ae3851ab5f95

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