Chunk 18.0

In this chunk, the assistant completed the implementation of a unified budget-based memory manager for the cuzk proving daemon, replacing the static `partition_workers` semaphore with a byte-level budget system tracking SRS, PCE, and synthesis working sets. After committing the core implementation and a critical `try_lock()` evictor fix (preventing a panic when the evictor callback ran from an async context), the binary was deployed to a remote 755 GiB machine. Initial tests revealed an OOM issue with auto budget (750 GiB) due to co-resident Curio processes; the assistant reconfigured to an explicit 400 GiB budget, which allowed all 30 partitions to process concurrently with peak RSS at 488 GiB (safely under the 529 GiB available). The run completed successfully: 3/3 proofs passed verification with 0.759 proofs/min throughput, and memory correctly returned to the 74.6 GiB baseline after completion. The user then requested a status API exposing pipeline progress, limiter states, major allocations, and GPU worker states for a 500ms-polled HTML UI. The assistant explored the codebase, designed a JSON status schema, and created a new `status.rs` module in cuzk-core with a `StatusTracker` (backed by `RwLock`) and serializable snapshot types. The tracker was wired into the Engine lifecycle at key points: job registration, SYNTH_START/END, GPU_PICKUP/END, and job completion. A `status_listen` config option was added to `DaemonConfig`, and `process_partition_result` was extended to accept the tracker. The assistant is now ready to add the lightweight HTTP server (using raw tokio TCP) in the daemon binary to serve the status endpoint, completing the integration.

From Memory Manager to Observatory: The Two-Act Story of a GPU Proving Engine's Evolution 3179 words

Message Articles

Subagent Sessions