Igneum: the GPU-mined zkEVM L1. Node, miner, app, spec and site.
2f718001e6
The finding (tests/ca4_trace.rs, the first export traced at 22:16 UTC): the per-load class derived 10,728 distinct items of 12,288 over three units (the class v4 shape 12,286), 1,482 same-iteration duplicate lanes at sites 8, 10 and 15; the mechanism is not the sub-block's last writer alone: a lossy base writer (mul, mulhi, or) followed by 27 passes of a 16-instruction map collapses a load's source register to 1 to 17 distinct values in 32 lanes before the next load (the census's 29 failing seeds of 64 at 22:16 UTC name mulhi, mul, or, rotl and load as the last base writers). The fix, two layers: (1) generator: a per-load sub-block instruction that writes the NEXT load's source register is redrawn from the injecting families when its op is mul, mulhi or or (consumes a draw; the class's own stream); (2) accept.rs: the dynamic test steps the per-load sub-blocks inside run_unit (alu_step, the same arithmetic as the arms) so saturation and distinctness are judged on the register file the loads read from, and a new rejection DuplicateLanes (the per-load class only) refuses a candidate whose load reads one address in two lanes of a unit; a rejected candidate redraws the attempt. After: the trace reads 12,287 of 12,288 with 0 duplicate lanes on the genesis seed; the 64-seed census on a second dataset reads 1 duplicate pair in 16,384 rows (seed ca4-census/49, the chance floor of a 2^24 index space, about 0.5 expected; the class v4 shape's own 2 of 12,288 are the same floor). verify.rs gains trace_load_indices (the diagnostic). Suite on igneum-build-2: 64 + 2 + 7 + 4 + 19 + 2 + 7 passed, 0 failed (RESULT rc=0, 22:23 UTC). The pinned packs unchanged; mx8+shl256x27's accepted attempt and id move, so the pack is re-exported. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> |
||
|---|---|---|
| .claude/agents | ||
| .github/workflows | ||
| app | ||
| brand | ||
| docs | ||
| igneum-census | ||
| igneum-pow | ||
| infra | ||
| packaging | ||
| pool | ||
| proto-cuda | ||
| proto-metal | ||
| proto-newpow | ||
| proto-opencl | ||
| proto-vdf | ||
| proving | ||
| relay | ||
| scene | ||
| sim | ||
| site | ||
| tools | ||
| .gitignore | ||
| .vercelignore | ||
| CLAUDE.md | ||
| rust-toolchain.toml | ||