igneum-network/igneum
1
0
Fork 0
Code Issues Pull requests Releases Activity

Counter ASIC 2.0 status 21:41: the mixer timing session, x8 provisional

Browse source
This commit is contained in:
igneum-labs 2026-10-05 21:41:15 +00:00
parent 208487c300
commit f394016bc3
1 changed files with 12 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
docs/plans/counter-asic-2-status.md
View file

@ -394,3 +394,15 @@ Fast-time 3-node network, 21:33 to 21:38 UTC (fork 79bd8e10 + igneum-pow 66eeba3
## 21:40 x8 built and bit-exact beside x4; the mixer PC job retargeted to PC 1
ca2-mixer 504cae4 (LoadClass::MX8 "mx8", packs mx8-genesis and mx8-devnet-epoch0, the fuzz takes IGNEUM_MIXER_CLASS, playbooks with the x8 packs) and fe4e193 (mixer-x4.md per-tier build table and the x4/x8 rule; chip-model-v3.md with the mixer row as the headline, the layer 5 rows kept as measured not adopted with the PC g beside the Mac's; x8 rows 0.31x bare, 0.92x with the factor, 0.76x at equal silicon at year 0). x8 bit-exactness (run lock): both packs on Metal and Apple OpenCL 3/3 + 3/3, 96 of 96 lanes, one fingerprint per pack across both harnesses (7c28cfb06c5c65a9, bbb183f72692f840); 50-program x8 fuzz on Metal 50 of 50, every tenth on OpenCL 5 of 5. Indicative Mac builds (run lock): 30.0 ms at x8 against 30.2 at x4 (genesis pack), 22.0 against 21.7 (devnet pack): the Mac's build is latency-bound. The timing session (verifier v2 / x4 / x8, the fill, the build) is queued behind the measure lock. PC job: mixer-x4-pcjob.zip sha256 55a2913cb8790cd3b106dc3d0d29b6e2952b5a08378cd815935915ab82898a8e (v2 control plus the mx4 and mx8 genesis and devnet packs; a prepare per pack printing the worker's cache and dataset build ms); retargeted so both halves run on PC 1 (its 5090 and its AMD card), after the era job, about 22:05.
## 21:41 the mixer timing session: x8 passes the verifier half of the rule
M5 Max, one core, measure lock, 21:40:12 to 21:40:23 UTC, on a loaded box (load average 5.6 one-minute, 26 fifteen-minute: other agents' unlocked processes), so the absolute figures are about 2x the quiet 0.604 ms v2 baseline and the RATIOS are the measurement (two rounds, within 4%); a quiet-box re-run is owed for absolute numbers.
| Class | Verifier ms per warp, avg of 50 (round 1 / 2) | Worst cold unit | Ratio to v2 |
|---|---|---|---|
| v2 | 1.361 / 1.310 | 1.579 | 1 |
| x4 (genesis; devnet pack 1.923) | 1.956 / 1.923 | 2.043 | 1.45x |
| x8 (genesis; devnet pack 2.972) | 2.785 / 2.790 | 2.942 | 2.1x |
256 MiB cache fill on one core 172 to 175 ms. Metal 1 GiB build, GPU time: v2 21.0 ms (29.7 cold), x4 20.9 / 21.0, x8 21.9 / 21.9: the Mac's build is bound by the 8 dependent cache-line reads per item, not the arithmetic, so the "under 1 s on every discrete card" half of the rule is decided by the 5090 and 9070 XT rows of the mixer PC job (by the M16 arithmetic the 5090 is 54 ms at x4 and 107 ms at x8 if arithmetic-bound, 13.4 ms if latency-bound: far under 1 s either way). Verifier half: x8 passes with 7.1 ms of the 10 ms gate to spare on the loaded core (about 1.3 ms on a quiet core, approximate); x4 leaves 8.0 ms. Chip row at x8: 1,198,080 ops per hash, 41.7 MH/s, 0.31x bare, 0.92x with the 3x factor, 0.76x at equal silicon; x4 1.84x / 1.53x. C19 at these loaded figures: shares per core per second 735 / 511 / 358 (v2 / x4 / x8), a 22,000-member pool at one share per 10 s needs 3.0 / 4.3 / 6.1 cores; IBD over 108,000 headers on one core 2.4 / 3.5 / 5.0 min. Provisional choice under the rule: x8, confirmed when the PC build rows land (about 22:10).