Segment 28

This sub-session addressed four critical deployment issues found during live testing: raising synthesis_concurrency from 4 to 18, setting a minimum benchmark concurrency of 4, adding status_listen to the benchmark config, and stripping ANSI escape codes from UI logs. The benchmark was restructured into a three-phase model (warmup, timed, cooldown) to eliminate SRS reload overhead. A major SSH connectivity issue was diagnosed and fixed—the vast-manager host's SSH key was missing from instances and a concatenation bug merged keys onto a single line—prompting improved SSH error handling. To prevent OOM kills on 256GB machines, a memcheck.sh utility was built to detect cgroup memory limits, with a POST /memcheck API endpoint added to vast-manager and results surfaced in the dashboard UI. The memcheck was integrated into entrypoint.sh for dynamic budget/concurrency configuration, and auto-restart logic for cuzk/curio was added. Finally, the Docker image was rebuilt and pushed, and the vast-manager was rebuilt and deployed via SCP/systemd restart.

Fix synthesis_concurrency and benchmark concurrency defaultsAdd status_listen to benchmark config and strip ANSI codes from UIRestructure benchmark into three-phase warmup/timed/cooldown modelDiagnose and fix SSH connectivity issues and improve error handlingDesign and build memcheck.sh utility for cgroup-aware memory detectionIntegrate memcheck into vast-manager API, UI, and entrypoint.shAdd auto-restart logic for cuzk/curio and set CURIO_NODE_NAMERebuild Docker image and deploy updated vast-manager

From Deployment Firefighting to Systematic OOM Prevention: The Full Arc of Production Engineering in GPU Proving Infrastructure 3328 words

Chunks