perf(cpu): push native CPU EP toward ORT/foundry parity on int4 decode

.squad/agents/chew/history.md

@@ -109,3 +109,5 @@ Recorded the integration rejection and subsequent approval after dependency meta
 
 ### 2026-07-22T14:59:36+0000 — WP-B landed
 WP-B landed: Chew's rejection of loader-IR shape authority directly informed the final Sapper WP-B3 v3 fix.
+
+2026-07-22T22:15:00Z — Approved Zhora’s `f8848c9` MatMulNBits f16/bf16 and topology tuning with non-blocking parity/regression follow-ups.

.squad/agents/gaff/history.md

@@ -133,3 +133,5 @@ CI now covers all 27 offline crates with warnings-as-errors and native Windows A
 
 ## 2026-07-22T21-35-00Z — ORT CUDA attention review
 Rejected Howie's ORT CUDA attention branch `7ff33496bda2` because `ONNX_GENAI_CUDA_ATTENTION` bypassed the typed `RuntimeConfig` registry. Named Deckard as reviser and locked Howie out of this artifact.
+
+2026-07-22T22:15:00Z — Approved Tyrell’s `122b31a` cross-OS affinity and safe auto-enable after N1/N2 fixes; Windows >64-CPU validation remains non-blocking.

.squad/agents/holden/history.md

@@ -128,3 +128,5 @@ CI now covers all 27 offline crates with warnings-as-errors and native Windows A
 
 - Holden reviewed Sapper's native CUDA fp16 int4 GEMV explicit-zero-point fix and returned 🟢 GREEN across all five criteria: SM-portability, capture-safety, symmetric no-regress, genericity, and correctness.
 - Validation evidence: 6/6 unit tests and 18/18 `matmul_nbits_gpu` integration tests passed; Sapper's fix merged to main as `48de993`.
+
+2026-07-22T22:15:00Z — Delivered portable CPU GQA SIMD tests in `82e44be`; Roy approved scalar-fallback dispatch coverage on non-AVX2 x86 and ARM.

.squad/agents/pris/history.md

@@ -123,6 +123,7 @@ CI now covers all 27 offline crates with warnings-as-errors and native Windows A
 
 Pris authored WP-B1 optional-modality metadata schema support and Bryant approved it; the work landed on origin/main as `a71c6f3`. Rachael's WP-B design note remains active for WP-B2/WP-B3 follow-up reference.
 
+- 2026-07-22T23:20:00Z — Authored the persistent SPMD decode-pool profile/implementation; the default-off lever advanced native M=1 int4 decode to about 17.3 tok/s with bit parity, then entered review and revision.
 ## 2026-07-24T15:10:00Z — Shared decode-lock helper revision
 
 Revised the Phi decode lock after Holden's rejection: environment-gated real-model coverage and generalized `common/decode_lock.rs` across Phi and Qwen. Holden approved; Pris co-owns the shared helper with Batty and Leon.

.squad/agents/roy/history.md

@@ -128,5 +128,7 @@ Authored CUDA Gather, Shape, and Constant kernels; coverage reached 65.
 
 ## 2026-07-21 — Wave-2 and CI milestone
 CI now covers all 27 offline crates with warnings-as-errors and native Windows ARM64. Capture-safe native fp16 CUDA decode wave 2 stacked GQA prep fusion, warp-shuffle RMSNorm, and specialized down-projection GEMV on wave 1, reaching 663–672 tok/s on H200 versus ORT GenAI at 657, with zero fallbacks. All CUDA EP kernel work must remain correct and fast across supported SM architectures, not only sm_90.
+
+2026-07-22T22:15:00Z — Approved Holden’s `82e44be` portable GQA SIMD test revision, including scalar fallback coverage.
 ### 2026-07-23T11:40Z
 Scribe note: Roy generic lm_head Transpose-fold + dense fp16 M==1 GEMV fast path was independently approved by Buster and merged to main as 0a2422d; Iran also recorded PROGRESS.md follow-up a933ffe.

.squad/agents/sebastian/history.md

@@ -83,3 +83,5 @@ CI now covers all 27 offline crates with warnings-as-errors and native Windows A
 
 ## 2026-07-21T11:15:00Z — Wave-3 long-context GQA
 - Raised capture-safe fp16 GQA `MAX_SPLITS` 8→16; Holden approved and `3b972bf` merged. Independent H200 review measured about 647→693 tok/s at 1024 tokens (+7.1%), flat at 256, with identical tokens and zero fallbacks.
+
+- 2026-07-22T23:20:00Z — Revised the rejected persistent SPMD pool under lockout; `cee3c20` added real 31-worker parity, precedence diagnostics, and panic-safe poisoning, then merged after approval.

.squad/agents/tyrell/history.md

@@ -31,3 +31,5 @@ CI now covers all 27 offline crates with warnings-as-errors and native Windows A
 
 ### 2026-07-22T14:59:36+0000 — WP-B landed
 WP-B landed: Progress docs should now treat WP-B as fully landed after WP-B3 `3d84b9b` plus clippy `6f217a4`.
+
+2026-07-22T22:15:00Z — Landed `122b31a` cross-OS decode affinity and safe multi-NUMA auto-enable; Gaff approved after N1/N2 fixes, with Windows multigroup validation remaining non-blocking.

.squad/agents/zhora/history.md

@@ -109,3 +109,5 @@ Added Rayon N-range partitioning for native CPU MatMulNBits.
 
 ### 2026-07-22T14:59:36+0000 — WP-B landed
 Zhora approved Rutger's clippy cleanup; required Clippy and targeted tests passed with scoped API-preserving fixes.
+
+2026-07-22T22:15:00Z — Landed `f8848c9`: f16/bf16 MatMulNBits widening/narrowing and topology-derived tuning; Chew approved with non-blocking coverage follow-ups.