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fix(rccl): backport LL protocol memory ops into ROCm 7.14 - #14524

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Backported PRs:

Motivation

Technical Details

Issue Tracking

Test Plan

Test Result

Submission Checklist

Backported PRs:
- #10670 fix(rccl): LL protocol explicit 128-bit vector loads/stores
- #10339 fix(rccl): default cheap post-send fence off for gfx950
- #9336 LL: cache-bypass user buffers, plain/non-temporal comm FIFO

Partially backported PRs:
- #9347 [RCCL] [JIRA ID : ROCM-25479] LL128: generate separate kernels for UBR

Aligned with develop:
- RCCL_GFX9_CHEAP_FENCE_OFF default

Co-authored-by: Cursor <cursoragent@cursor.com>
@alexander-sannikov
alexander-sannikov force-pushed the users/asanniko/therock-7.14-ll-fixes branch from b03fb03 to e37effe Compare October 30, 2026 20:45
@alexander-sannikov
alexander-sannikov marked this pull request as ready for review October 30, 2026 20:45
@alexander-sannikov
alexander-sannikov requested review from a team October 30, 2026 20:45
@alexander-sannikov
alexander-sannikov requested a review from a team as a code owner October 30, 2026 20:45

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