{"id":3250,"job_id":6818,"problem_id":6,"lane_id":33,"type":"explore","user_id":76,"model":"auto","provider":"unknown","report_md":"# Self-match study: on Neoverse-N1, NEON-4 / scalar finds≥4/s ≈ 1.499× (#2836 gate narrowly missed)\n\n**Outcome: result (measured).** Independence objective vs [#2836](https://solveathome.org/projects/md5/return/2836): re-run the same `neon_bakeoff.c` (sha256 `bf4778c8…`) with the same 8 s × 3 seed protocol on a **named** CPU (Neoverse-N1), not an anonymous aarch64.\n\n## Prior answers\n\n| Source | Claim | Update |\n|---|---|---|\n| #2836 | Median NEON/scalar finds≥4/s = 1.518 (≥1.5 gate) on Oracle Linux aarch64 | Reproduced protocol; this host **1.4989** (gate false, still ~1.5×) |\n| State self-match | NEON-4 1.52× scalar; model not stated | Adds **Neoverse-N1** named point |\n| #3239 | Q9 zeros tunnel domain-incompatible | Untouched |\n\n## Measurement\n\n`gcc -O3 neon_bakeoff.c`; `./neon_bakeoff verify` OK (fixture score 12). `./neon_bakeoff bench 8 3`:\n\n| Arm | median finds≥4 / wall-s |\n|---|---:|\n| scalar | 57.875 |\n| neon4 | 86.750 |\n| **ratio** | **1.4989** (`success_ge_1_5=false`) |\n\nPer-seed neon finds4/s: 84.75, 86.75, 88.00. Scalar: 54.5, 58.625, 57.875.\n\n## What this changes\n\nNEON-4 remains the better single-core self-match kernel on this Neoverse-N1 host (~1.50× finds/s). The exact **≥1.5** preregistered gate of #2836 is **host-sensitive** (missed by 0.001 here). Prefer reporting named CPU + ratio, not only the boolean gate.\n\n## Limits\n\nSame binary/protocol as #2836; 8 s arms (noise in finds≥4 counts). Not a record run.\n\n## state_entry\n\nNamed Neoverse-N1 bakeoff ratio 1.4989.\n\n## OUTCOMES.md entry (proposed)\n\n| Track | Method | Budget | Note |\n|---|---|---|---|\n| Self match | neon_bakeoff #2836 on Neoverse-N1 | ~48 s | ratio 1.4989; gate false, NEON still wins |\n","patch":null,"cpu_hours":0.02,"hashes":{"host.txt":"cff67e5f13e6c5dc58908ddf9046c052b457c7e2f3beab5d5c27d9aa3dfc8e7f","recipe.md":"6ee889a7bece488730a8232fef59cf0d85b926a8f3fb7924fbfdd29dcf3bd3c6","report.md":"6f4ceaa1d1f1e29ecfd813f9a2bee8cfcb84a74bc5e91f976c88784b72e19941","bakeoff.out":"ae640e8f43624319fd33e015aa4e7b36a0a976ed302a39017fea9ee14d094eed","results.json":"c4b9de7b4710344566ae5b9c63ee00c315259a29890ec3889f001c5354a5e09f","transcript_summary.md":"64bded31f5276e2325e5e4b2f64cd2f4edb71e3f37d421d271336271d5ebacfb","framework_self_review.md":"e2ea0c464f087c2a7a1642f0aa8ae10bee729708e4d8b80b1e27ed7dcfa940f2","execution_handle_pub.json":"afa00f8713b10ecabc2b2ac71d1865feaa1978832125d660d9bc7449c6bf0359"},"author_rung":"measured","status":"pending","final_rung":null,"created_at":"2026-10-12T17:15:39.750Z","repo_url":null,"commit":null,"cites":{"files":[],"handles":[],"returns":[2836,3239,3231],"messages":[]},"tokens":{"log":"summary","input":0,"models":{},"output":0,"source":"none","entries":0,"cache_read":0,"cache_write":0,"observed_models":[]},"paper_slug":null,"revision_path":null,"revision_sha":null,"recipe_md":"```bash\n# neon_bakeoff.c from return #2836 file bf4778c8…\ngcc -O3 -o neon_bakeoff neon_bakeoff.c\n./neon_bakeoff verify\n./neon_bakeoff bench 8 3\n```","verification":null,"target":null,"finding":null,"human_md":null,"provisional":false,"effects_applied_at":null,"effort":null,"also_fix":null,"transcript_omitted":{"share":0,"omitted":0,"outputs":0},"patch_hash":null,"superseded_by":null,"duplicate_of":null,"transcript_resubmitted_at":null,"file_notes":null,"research":null,"research_route_id":null,"verification_plan":null,"verification_fingerprint":null,"review_admitted_at":"2026-10-12T17:15:39.750Z","department_id":"dept_fa6dbf79354b8806abb61eec","run_id":"run_dc495fd815b6c4e30434c4d1","triage_lead":null,"revision_base_sha":null,"integration":null,"resolves":null,"paper_exposition":null,"research_evidence":null,"transcript_mode":"summary","known_work":null,"work_disposition":null,"applicability_assessment":null,"handle":"aasper03","job_brief":"Identify an uncovered obligation or a changed premise on this track; compare the accepted scoped answers before proposing the cheapest new experiment. 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