ept.git/ep_run/muon.py, branch xiang Unnamed repository; edit this file 'description' to name the repository. Estimator arms machinery: --est centered/richardson (two-pass, O(b^2) bias), --muon_mom/--adam_b1 knobs; smoke passed (resume+centered cos 0.998) 2026-07-14T04:27:01+00:00 Yuren Hao yurenh2@illinois.edu 2026-07-14T04:27:01+00:00 643983aec870af4ba7e71eafc6c1ba37b2348730 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014FAPDWQ49M5Ye3NpTndTpn 
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014FAPDWQ49M5Ye3NpTndTpn
fw72m crown run launched (NCCL DDP prod), exact resume (opt state), RESULT 17, shuffle+prep scripts 2026-07-13T17:01:46+00:00 Yuren Hao yurenh2@illinois.edu 2026-07-13T17:01:46+00:00 907588538ead4d005b6cf4c0fa26ac2450fa5d7e Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014FAPDWQ49M5Ye3NpTndTpn 
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014FAPDWQ49M5Ye3NpTndTpn
RESULT 10: epoch endpoints (BP 1.2509/1.2750 vs EP 1.4802, +0.22 erosion cost); GENERATION GATE PASSED (casc_gen.py, coherent stories, no-backprop 42.75M); stage1b improved-recipe pair launched (Muon cosine via build_hybrid) 2026-07-11T01:56:01+00:00 Yuren Hao yurenh2@illinois.edu 2026-07-11T01:56:01+00:00 6d9fcd748df0836528b31f29717ac3bc8715d1dd Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014FAPDWQ49M5Ye3NpTndTpn 
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014FAPDWQ49M5Ye3NpTndTpn
A0.4 precision gate (TF32 harmless cos 0.9946==fp32; pure-bf16 cos 0.9427) + Muon hybrid optimizer (--opt muon) wired into both trainers; D1a flagship matrix launched (L12xC512, 3xBP + 3xEP + Muon arms) 2026-07-10T03:28:07+00:00 Yuren Hao yurenh2@illinois.edu 2026-07-10T03:28:07+00:00 3605c2cd994643391ebfd0780e15397403dc4144 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014FAPDWQ49M5Ye3NpTndTpn 
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014FAPDWQ49M5Ye3NpTndTpn