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Make DSv4 attention and indexer backward deterministic - #7708

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Connor-XY wants to merge 5 commits into

NVIDIA:mainfrom

Connor-XY:codex/dsv4-csa-determinism-packed

Open

Make DSv4 attention and indexer backward deterministic#7708
Connor-XY wants to merge 5 commits into
NVIDIA:mainfrom
Connor-XY:codex/dsv4-csa-determinism-packed

Commits on Oct 6, 2026
- Make DSv4 attention and indexer backward deterministic
  Connor-XY
  committed
  915d73c
- Fix deterministic CSA forward key order across grad modes
  
  Connor-XY
  and
  bobboli
  committed
  3989b77
- Align CSA parity test TopK with cuDNN score-recompute tiles
  Connor-XY
  committed
  cc6e840
Commits on Oct 13, 2026
- test(csa): select deterministic SM100 coverage on GB200
  FDecaYed
  committed
  dd480fe
Commits on Oct 22, 2026
- Merge main into codex/dsv4-csa-determinism-packed
  
  FDecaYed
  and
  claude
  committed
  ee6c688