Files
FabledCurator/agent/fc_agent/gpu.py
T
bvandeusen 4a1a9ec5a7
CI / lint (push) Successful in 2s
CI / frontend-build (push) Successful in 18s
CI / backend-lint-and-test (push) Successful in 27s
CI / integration (push) Successful in 3m25s
feat(agent): GPU load readout + live worker-count tuning (#114)
Control UI gains what the operator asked for:
- GPU load (nvidia-smi): util %, VRAM used/total + bar, temp — so you can see how
  hard the card is working while you're at the desktop.
- Worker count is now a live − / + control (POST /concurrency), not just an env:
  the worker is a pool of independent slots (shared model, so slots add concurrent
  inference, not N× VRAM). Dial up for speed, down to free the card. Replaces
  pause/resume with Start/Stop + the worker dial.
- Graceful release on stop / pool-shrink: a slot hands its still-leased jobs back
  via client.release() so they're re-picked immediately (pairs with the server
  recovery sweep).

Not CI-tested (agent/ outside CI) — verified by running.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
2026-06-29 19:07:40 -04:00

31 lines
1.0 KiB
Python

"""GPU load readout via nvidia-smi (present in the container thanks to the
NVIDIA Container Toolkit's `utility` capability). Returns None if unavailable —
the UI just shows n/a (e.g. CPU-fallback run)."""
import subprocess
def read_gpu() -> dict | None:
try:
out = subprocess.run(
[
"nvidia-smi",
"--query-gpu=utilization.gpu,memory.used,memory.total,temperature.gpu",
"--format=csv,noheader,nounits",
],
capture_output=True, text=True, timeout=5, check=True,
).stdout.strip().splitlines()
except (OSError, subprocess.SubprocessError):
return None
if not out:
return None
parts = [p.strip() for p in out[0].split(",")]
try:
return {
"util_pct": int(float(parts[0])),
"mem_used_mb": int(float(parts[1])),
"mem_total_mb": int(float(parts[2])),
"temp_c": int(float(parts[3])),
}
except (ValueError, IndexError):
return None