CUDA keeps crashing
Member_257874
Posts: 76
I have 4.12 and a GTX 1070 and a 660 Ti.
For some reasons, the CUDA device keeps disappearing after one or two renders with iray. The next render then will be CPU only.
2019-12-06 20:58:34.334 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Allocating 1-layer frame buffer2019-12-06 20:58:34.346 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Using batch scheduling, caustic sampler disabled2019-12-06 20:58:34.346 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Initializing local rendering.2019-12-06 20:58:34.350 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : CPU: using 6 cores for rendering2019-12-06 20:58:34.396 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Rendering with 3 device(s):2019-12-06 20:58:34.396 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : CUDA device 0 (GeForce GTX 1070)2019-12-06 20:58:34.396 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : CUDA device 1 (GeForce GTX 660 Ti)2019-12-06 20:58:34.396 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : CPU2019-12-06 20:58:34.397 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Rendering...2019-12-06 20:58:34.397 Iray [INFO] - IRAY:RENDER :: 1.6 IRAY rend info : Using Embree 2.8.02019-12-06 20:58:34.397 Iray [VERBOSE] - IRAY:RENDER :: 1.4 IRAY rend progr: CPU: Processing scene...2019-12-06 20:58:34.397 Iray [INFO] - IRAY:RENDER :: 1.6 IRAY rend info : Initializing Embree2019-12-06 20:58:34.397 Iray [VERBOSE] - IRAY:RENDER :: 1.3 IRAY rend progr: CUDA device 1 (GeForce GTX 660 Ti): Processing scene...2019-12-06 20:58:34.398 Iray [VERBOSE] - IRAY:RENDER :: 1.2 IRAY rend progr: CUDA device 0 (GeForce GTX 1070): Processing scene...Second render
2019-12-06 21:00:32.775 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Allocating 1-layer frame buffer2019-12-06 21:00:32.787 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Using batch scheduling, caustic sampler disabled2019-12-06 21:00:32.787 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Initializing local rendering.2019-12-06 21:00:32.789 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : CPU: using 8 cores for rendering2019-12-06 21:00:32.789 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Rendering with 1 device(s):2019-12-06 21:00:32.789 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : CPU2019-12-06 21:00:32.789 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Rendering...2019-12-06 21:00:32.789 Iray [INFO] - IRAY:RENDER :: 1.3 IRAY rend info : Initializing Embree2019-12-06 21:00:32.789 Iray [VERBOSE] - IRAY:RENDER :: 1.2 IRAY rend progr: CPU: Processing scene...
Daz 3D is part of 
Connect
DAZ Productions, Inc.
7533 S Center View Ct #4664
West Jordan, UT 84084
Licensing Agreement | Terms of Service | Privacy Policy | EULA
© 2026 Daz Productions Inc. All Rights Reserved.
Comments
Which driver? The 440s seem to have issues - the current Public Build of DS, 4.12.1.490, has an Iray update that includes workarounds for the issues (though I'm not sure it's perfect) https://www.daz3d.com/daz-studio-beta
I had the issue with 4.11 sometimes but not as often. Recently it happens like every second session. I will try the beta, thanks.
@mindphuk_566386ef79
If you don't close a previous render window and you have a fairly complex screen, you may be running out of Vram on your GPUs. You will likely lose the 660 TI for almost any scene with more than a naked G8F.