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FabledCurator/agent
bvandeusen f0f031782d
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fix(agent): unfreeze status view + smoothed throughput-aware autoscaler + log pane
Operator: the status tiles (state/active/processed) and the Start/Stop buttons
freeze while the GPU meters stay live. Root cause: /status made an INLINE
blocking curator call (queue_status) on every poll, and with curator buried
under a 112k-job backlog that call stalled — freezing the whole status refresh
(the GPU bars survived because /gpu is a lock-free local read). Made worse by the
old util-band autoscaler, which grew workers toward the 32 cap forever because
util plateaus ~50% on this IO-bound load and never hit the 70 grow threshold —
piling load onto curator and the agent process.

- /status is now a pure in-memory read: worker.status() is lock-free, and the
  curator queue snapshot is refreshed by a background poller (never inline).
- Autoscaler replaced with a smoothed, throughput-aware climb that SETTLES:
  samples util every 2s and EWMA-smooths it (raw util swings 0↔99), then every
  ~24s grows by one only while each grow keeps lifting smoothed jobs/s; when a
  grow stops helping it backs off one and holds, re-probing occasionally. No
  runaway, no flopping.
- GPU util bar now shows a smoothed value: the agent's own EWMA (util_smooth,
  exposed on /gpu) when running, else smoothed client-side — so it glides
  instead of bouncing 0↔99.
- act() aborts a slow Start/Stop POST after 8s so the buttons can't stick; the
  now-always-fast /status refresh recovers state regardless.
- Log pane: bound the page to the viewport (height:100vh) so the Logs card
  scrolls INTERNALLY instead of overflowing off-screen; cap the ring buffer at
  400 lines.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa
2026-06-30 20:20:14 -04:00
..

FabledCurator GPU agent

A desktop-GPU worker that embeds characters (CCIP) + figure crops for FabledCurator. It talks to FC only over HTTP — it leases jobs, fetches image pixels, runs the models on your GPU, and posts results back. Your FC database and Redis stay private; the agent never touches them.

You run it when you want a burst and stop it to reclaim the card.

0. Host prerequisite — NVIDIA Container Toolkit

Docker needs the toolkit to hand the GPU to a container (else: "could not select device driver nvidia with capabilities gpu"). On Arch/CachyOS:

sudo pacman -S nvidia-container-toolkit
sudo nvidia-ctk runtime configure --runtime=docker
sudo systemctl restart docker
# verify:
docker run --rm --gpus all nvidia/cuda:12.4.1-base-ubuntu22.04 nvidia-smi

1. Get a token

In FC: Settings → Tagging → GPU agent → Generate token (or Rotate). Copy it.

2. Pull (CI publishes it alongside the web/ml images)

docker pull git.fabledsword.com/bvandeusen/fabledcurator-agent:latest

Local build for development instead: docker build -t fc-gpu-agent agent/

3. Run (on the machine with the GPU)

docker run --rm --gpus all -p 8770:8770 \
  -e FC_URL=http://curator.traefik.internal \
  -e FC_TOKEN=<paste-the-token> \
  -v fc-agent-models:/models \
  git.fabledsword.com/bvandeusen/fabledcurator-agent:latest

Then open http://localhost:8770 — the control page. Click Start to begin draining the queue; Pause/Stop to yield the GPU. The -v fc-agent-models volume caches the downloaded ONNX models so restarts are fast.

Kick off a backfill from FC (GPU agent card → Queue character embedding), then watch the queue counts on the control page (or FC's card) drain.

Config (env)

var default meaning
FC_URL http://localhost:8000 FC base URL
FC_TOKEN the bearer token (required)
AGENT_ID desktop-agent identifies this agent's leases
BATCH_SIZE 4 jobs leased per round (still processed one at a time)
CCIP_MODEL imgutils default CCIP model name
DETECTOR_LEVEL m person-detector size: n < s < m < x
POLL_IDLE_SECONDS 10 wait between empty leases

⚠️ Verify on first run

This part can't be CI-tested (no GPU/models in CI), so confirm against your installed dghs-imgutils (pip show dghs-imgutils) — see fc_agent/models.py:

  • imgutils.detect.detect_person(image, level=...) returns [((x0,y0,x1,y1), label, score), ...].
  • imgutils.metrics.ccip_extract_feature(image, model=...) returns a vector (768-d for caformer). If you want the F1-0.94 variant, set CCIP_MODEL=ccip-caformer_b36-24 (verify the exact string in imgutils).

If FC's matcher under/over-fires, tune the cosine threshold in backend/app/services/ml/ccip.py (DEFAULT_SIM_THRESHOLD) and use GET /api/ccip/overview + /api/ccip/images/<id> to spot-check.

CPU fallback

Swap onnxruntime-gpuonnxruntime in requirements.txt and drop --gpus all to grind it slowly on the server instead. Same agent, no card.