Segment 22
This sub-session corrected a critical misunderstanding about PoRep C2 partition synthesis times (each partition takes ~32–37s, not ~4s) and the 'thundering herd' batch dispatch. The user proposed breaking the 10-circuit batch abstraction to treat each partition as an independent work unit, enabling immediate GPU dispatch upon completion. The assistant rigorously analyzed this model through Python simulations, discovering that the true benefit lies in cross-sector pipelining rather than single-sector gains. This insight drove the design of a Phase 7 architecture featuring 15–20 concurrent synthesis workers, per-partition GPU proving with num_circuits=1 to avoid costly b_g2_msm overhead, and a ProofAssembler for accumulating completed partitions. The design was documented in c2-optimization-proposal-7.md and committed to the repository, promising ~30% throughput improvement to ~30s/proof with 100% GPU utilization.