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docs(state): close T-SYCL-ARC-SSIMULACRA2-PARITY-2026-06-03 (fixed by 8b7ae731a) #1332

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docs(state): close T-SYCL-ARC-SSIMULACRA2-PARITY-2026-06-03 (fixed by 8b7ae731a) #1332

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16 changes: 16 additions & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -10618,6 +10618,22 @@ core internal headers (`framesync.h`, `thread_pool.h`, `picture_pool.h`,
(62-run `--precision max` output matrix, 21 396 metric values). (ADR-1141)


- **docs(state):** Close `T-SYCL-ARC-SSIMULACRA2-PARITY-2026-06-03` in
`docs/state.md`. The defect the row named — uncompensated fp32
accumulation in the 3-pole IIR Charalampidis blur of
`core/src/feature/sycl/ssimulacra2_sycl.cpp::launch_blur` — was fixed on
2026-06-12 by `8b7ae731a` (PR #865), which added Kahan
compensated-summation state to all three poles, satisfying the row's own
closure condition (b). The ledger text was written against `dd02029f9`
(PR #852, the calibration-anchor partial fix) and was never refreshed, so
the row read as open for three months. The stale comment block and
`notes:` prose for the `sycl:0x8086:0x56a*` entry in
`scripts/ci/gpu_ulp_calibration.yaml` are corrected the same way; the
entry stays `status: placeholder` and its `ssimulacra2: 5.0e-3` tolerance
is unchanged, because the outstanding item is an Arc A380 re-measurement,
not a code fix. No behaviour change.


- **SHA-pin every GitHub Actions reference in `.github/workflows/*.yml`
(OSSF Scorecard `Pinned-Dependencies` remediation).** Every
`uses: <owner>/<repo>@<tag>` reference in the 13 fork workflows is
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14 changes: 14 additions & 0 deletions changelog.d/changed/1325-state-md-close-sycl-arc-ssimulacra2-parity.md
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@@ -0,0 +1,14 @@
- **docs(state):** Close `T-SYCL-ARC-SSIMULACRA2-PARITY-2026-06-03` in
`docs/state.md`. The defect the row named — uncompensated fp32
accumulation in the 3-pole IIR Charalampidis blur of
`core/src/feature/sycl/ssimulacra2_sycl.cpp::launch_blur` — was fixed on
2026-06-12 by `8b7ae731a` (PR #865), which added Kahan
compensated-summation state to all three poles, satisfying the row's own
closure condition (b). The ledger text was written against `dd02029f9`
(PR #852, the calibration-anchor partial fix) and was never refreshed, so
the row read as open for three months. The stale comment block and
`notes:` prose for the `sycl:0x8086:0x56a*` entry in
`scripts/ci/gpu_ulp_calibration.yaml` are corrected the same way; the
entry stays `status: placeholder` and its `ssimulacra2: 5.0e-3` tolerance
is unchanged, because the outstanding item is an Arc A380 re-measurement,
not a code fix. No behaviour change.
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