Files
Hartmut 34f89cc225 feat(gpu): GPU health check + RENDER_DEVICE_USED token + strict mode
- gpu_probe.py: Blender script that probes OPTIX/CUDA/HIP/ONEAPI and
  exits 1 on no GPU — used at startup + on-demand from Admin UI
- blender_render.py, still_render.py, turntable_render.py: emit
  RENDER_DEVICE_USED: engine=CYCLES device=GPU|CPU compute_type=...
  after GPU activation; exit 2 when CYCLES_DEVICE=gpu and CPU fallback
- render_blender.py: parse RENDER_DEVICE_USED token into render_log
  (device_used, compute_type, gpu_fallback); handle exit code 2 as
  explicit GPU strict-mode failure
- check_version.py: check_gpu() runs gpu_probe.py at container startup;
  CYCLES_DEVICE=gpu aborts startup if no GPU found
- docker-compose.yml: CYCLES_DEVICE=${CYCLES_DEVICE:-auto} env var
- gpu_tasks.py: probe_gpu Celery task on thumbnail_rendering queue;
  saves result to system_settings.gpu_probe_last_result; beat every 30min
- worker.py: POST /probe/gpu (trigger) + GET /probe/gpu/result (last result)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-08 20:57:36 +01:00

44 lines
1.3 KiB
Python

"""Blender Python script: GPU compute device probe.
Run via:
blender --background --python gpu_probe.py
Exit codes:
0 — GPU found, prints GPU_PROBE_OK line
1 — No GPU found or error, prints GPU_PROBE_FAIL line
"""
import sys
def main():
try:
import bpy
cprefs = bpy.context.preferences.addons['cycles'].preferences
for device_type in ('OPTIX', 'CUDA', 'HIP', 'ONEAPI'):
try:
cprefs.compute_device_type = device_type
cprefs.get_devices()
gpu_devices = [d for d in cprefs.devices if d.type != 'CPU']
if gpu_devices:
device_names = [(d.name, d.type) for d in gpu_devices]
print(
f"GPU_PROBE_OK: device_type={device_type} devices={device_names}",
flush=True,
)
sys.exit(0)
except Exception as e:
print(f"GPU_PROBE: {device_type} not available: {e}", flush=True)
print("GPU_PROBE_FAIL: no GPU compute device found", flush=True)
sys.exit(1)
except SystemExit:
raise
except Exception as e:
print(f"GPU_PROBE_FAIL: exception during probe: {e}", flush=True)
sys.exit(1)
main()