Ferrite

[0.6.3-alpha] — 2026-05-03

Added

• AC offer-based Rust kernel (/ferrite redstone ac-rust on). Mirrors AC's powerNetwork() loop in Rust: offer-based propagation with flow-direction tracking, priority-queue ordered output. Parity-clean (0 oracle mismatches sustained across Phase 3 validation). ~16% aggregate wire-cost reduction vs the existing relaxation kernel on heavy workloads.

Notes

• Existing relaxation kernel (RUST_BFS) stays in tree as fallback. Both kernels coexist; AC-Rust activates first when enabled, BFS takes over if the AC path bails (overflow / native unavailable).
• Phase 3 depower fix: runRustAcBatch() now calls findPower(wire, true) after findExternalPower() to pull outside-cascade wire contributions before serializing. Fixes boundary wire power=0 mismatches the oracle surfaced during initial validation (~5% mismatch rate before fix, 0 after).