Every prior std79-doe.fth run's automatically-extracted CSV (scripts/extract_doe.sh) was silently empty -- g_doe_log_enabled (doe_log.c) defaults off, and nothing in the campaign ever called HB-ON. EXEC-STD79-DOE now calls HB-ON right before its trial loop and HB-OFF right after, so the per-heartbeat-tick physics/timing CSV (18 columns: tick_number, hot_word_count, avg_word_heat_q48, apic_ticks, per-VM heat_q48, etc.) finally covers the run's own window on all three architectures. Found and fixed two bugs along the way, one in a comment and one in the ad hoc QEMU orchestration script used to drive these runs (not part of this repo): - std79-doe.fth's own explanatory comment accidentally spelled out the literal "[HADES][DOE ]" tag string doe_log.c prefixes each row with -- the FORTH REPL's compile-time echo of that comment then matched scripts/extract_doe.sh's own extraction grep, corrupting the first extracted CSV row with comment text instead of real telemetry. Fixed by never spelling out the literal substring. - The harness script's completion-detection watched for "STD79-DOE: complete" anywhere in the log since before the whole capsule was fed, which matches the colon definition's own compile-time echo of that same string literal, not just the real end-of-run print. Without HB-ON the entire 27-trial run finished in a few seconds -- faster than one poll interval -- so the false match and the real one always landed in the same window and this never surfaced. HB-ON's added per-tick console I/O slowed real execution enough to expose it: the script sent BYE the moment compilation finished, truncating every trial after whatever point compilation had reached (aarch64 lost 9 of 27 trials this way on the first attempt). Fixed by feeding definitions and invocation as two genuinely separate connections, with the completion-watch window opened only after compilation is confirmed landed. Verified 27/27 trials correct on every architecture via the campcampaign's most distinctive result markers (both M*/M/MOD 18-19 digit values and the 2147483648 2/ result, all exactly 27 occurrences, zero faults) rather than exact substring reconstruction: HB-ON's async per-tick CSV printer and the trial loop's own console output share the same serial line with no locking, so CSV rows can splice mid-token into trial output on the wire (confirmed live -- cosmetic only, the underlying FORTH execution and values are unaffected). results-20260912-with-heartbeat-csv/ holds both the raw logs and their paired heartbeat CSVs; the earlier truncated runs' logs are kept too (never delete logs) as the record of how this was found. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EXieurDfDSsDFdnSyusuWo
experiments/
Design of Experiments (DoE) campaign data and analysis for the LithosAnanke kernel.
bare_metal/— the bare-metal DoE experiment: blind full-factorial 2⁴ runs measuring the L8 Jacquard mode selector's effect on the Steady-State Machine across amd64/aarch64/riscv64. Seeexperiments/bare_metal/README.mdfor the full directory layout (runs/,latest/,analysis/{charts,tables,report}).
Hosted-VM DoE campaigns (factorial/heartbeat/ablation studies) live under
docs/working/experiments/ instead — this top-level directory is
specifically the kernel/bare-metal side.