myxce/src/worker/CLAUDE.md

XCE Worker Daemon (xcecd)

Overview

C daemon running on each compute node. Manages job execution, hardware monitoring, and process lifecycle on worker nodes.

Build

/xce-build worker   # lib + worker daemon (see build-deployment.md)

Architecture

• src/main.c — Main daemon entry point (int main); links against xcecd_srcs from src/xcecd.c and friends
• src/hardware_monitor.c — CPU/memory resource monitoring (no GPU)
• src/process_worker_manager.c + src/uv_proc.c — Job process lifecycle (fork xcecd_worker, spawn/exec the job command); src/process_manager.c is unused dead code for job spawn (its process_manager_start_process is never called) but is still wired up for generic create/update/destroy/reap in xcecd.c

Links against libxce from src/lib/.

Conventions

• C standard: gnu17
• Format with clang-format
• Headers in include/
• Shared types defined in src/include/xce/ (libxce)

See Also

• Shared library: src/lib/CLAUDE.md
• Root guidelines: CLAUDE.md (repo root)