Segment 8

This sub-session executed the core implementation of Phase 2 (Steps 3-7) of the cuzk pipelined proving engine. The primary achievement was replacing the monolithic PoRep C2 prover with a per-partition pipelined synthesis/GPU architecture. This required creating the `srs_manager.rs` module for direct SRS loading via `SuprasealParameters` (bypassing the private `GROTH_PARAM_MEMORY_CACHE`), and the `pipeline.rs` module containing the `SynthesizedProof` type and the split `synthesize_porep_c2_partition()` / `gpu_prove()` functions. The engine was refactored to support a `pipeline.enabled` configuration, routing PoRep C2 jobs through the new pipeline when active. The work was committed as `beb3ca9c`, with all 15 unit tests passing and zero warnings from cuzk code. A critical design decision was per-partition pipelining for 32G PoRep, which reduces peak intermediate memory from ~136 GiB to ~13.6 GiB, enabling the pipeline to function on 128 GiB machines.

Create SRS manager moduleImplement per-partition pipeliningRefactor engine for pipeline modeImplement split synthesis/GPU prover functionsAdd pipeline configuration supportCommit Phase 2 core implementation

Engineering the Split: How the cuzk Phase 2 Pipeline Replaced Filecoin's Monolithic Prover 3042 words

Chunks