Request For Help With Daz Crashing

tristanthorne1997

Lately Daz is crashing every other time I try to render. Then I re-open the scene and I am able to render. Then I make some small adjustments like a pose change or a camera angle change, render, and I get a crash.

Then I re-open the scene AGAIN and it renders fine. 

Below is part of the error log.

My question is....why does my PC run out of memory during one render, but then when I re-open after a crash, it renders fine? It's a scene with two characters wearing little clothing (bikinis) and a beach HDRI Environment.

Rendering...

2018-02-19 14:10:12.081 Iray VERBOSE - module:category(IRAY:RENDER):   1.8   IRAY   rend progr: CUDA device 0 (GeForce GTX 970): Processing scene...

2018-02-19 14:10:17.384 Iray VERBOSE - module:category(IRAY:RENDER):   1.4   IRAY   rend stat : Geometry memory consumption: 216.908 MiB (device 0), 0 B (host)

2018-02-19 14:11:51.474 WARNING: dzneuraymgr.cpp(307): Iray ERROR - module:category(IRAY:RENDER):   1.4   IRAY   rend error: Unable to allocate 67108864 bytes from 43749376 bytes of available device memory

2018-02-19 14:11:51.482 WARNING: dzneuraymgr.cpp(307): Iray ERROR - module:category(IRAY:RENDER):   1.8   IRAY   rend error: CUDA device 0 (GeForce GTX 970): Scene setup failed

2018-02-19 14:11:51.486 WARNING: dzneuraymgr.cpp(307): Iray ERROR - module:category(IRAY:RENDER):   1.8   IRAY   rend error: CUDA device 0 (GeForce GTX 970): Device failed while rendering

2018-02-19 14:11:51.495 WARNING: dzneuraymgr.cpp(307): Iray WARNING - module:category(IRAY:RENDER):   1.8   IRAY   rend warn : All available GPUs failed.

2018-02-19 14:11:51.496 Iray INFO - module:category(IRAY:RENDER):   1.8   IRAY   rend info : Falling back to CPU rendering.

2018-02-19 14:11:51.501 WARNING: dzneuraymgr.cpp(307): Iray WARNING - module:category(IRAY:RENDER):   1.8   IRAY   rend warn : Re-rendering iteration because of device failure

2018-02-19 14:11:51.501 WARNING: dzneuraymgr.cpp(307): Iray ERROR - module:category(IRAY:RENDER):   1.8   IRAY   rend error: All workers failed: aborting render

2018-02-19 14:11:51.517 Iray INFO - module:category(IRAY:RENDER):   1.0   IRAY   rend info : CPU: using 8 cores for rendering

2018-02-19 14:11:51.517 Iray INFO - module:category(IRAY:RENDER):   1.0   IRAY   rend info : Rendering with 1 device(s):

2018-02-19 14:11:51.518 Iray INFO - module:category(IRAY:RENDER):   1.0   IRAY   rend info : CPU

2018-02-19 14:11:51.518 Iray INFO - module:category(IRAY:RENDER):   1.0   IRAY   rend info : Rendering...

2018-02-19 14:11:51.525 Iray INFO - module:category(IRAY:RENDER):   1.4   IRAY   rend info : Initializing light hierarchy.

2018-02-19 14:11:51.526 Iray VERBOSE - module:category(IRAY:RENDER):   1.8   IRAY   rend progr: CPU: Processing scene...

2018-02-19 14:11:51.532 Iray INFO - module:category(IRAY:RENDER):   1.4   IRAY   rend info : Light hierarchy initialization took 0.01s

2018-02-19 14:11:51.884 Iray VERBOSE - module:category(IRAY:RENDER):   1.4   IRAY   rend stat : Native CPU code generated in 0.000238s

2018-02-19 14:11:52.921 Iray INFO - module:category(IRAY:RENDER):   1.8   IRAY   rend info : CPU: Scene processed in 1.401s

2018-02-19 14:11:52.925 Iray INFO - module:category(IRAY:RENDER):   1.4   IRAY   rend info : CPU: Allocated 10.6092 MiB for frame buffer

2018-02-19 14:11:53.330 Iray INFO - module:category(IRAY:RENDER):   1.0   IRAY   rend info : Received update to 00001 iterations after 101.220s.

2018-02-19 14:11:53.341 Iray INFO - module:category(IRAY:RENDER):   1.0   IRAY   rend info : Scene size has decreased since out-of-memory failure. Re-enable CUDA device 0.

2018-02-19 14:11:53.345 Iray INFO - module:category(IRAY:RENDER):   1.0   IRAY   rend info : Rendering with 1 device(s):

2018-02-19 14:11:53.345 Iray INFO - module:category(IRAY:RENDER):   1.0   IRAY   rend info : CUDA device 0 (GeForce GTX 970)

2018-02-19 14:11:53.345 Iray INFO - module:category(IRAY:RENDER):   1.0   IRAY   rend info : Rendering...

2018-02-19 14:11:53.351 WARNING: dzneuraymgr.cpp(307): Iray ERROR - module:category(IRAY:RENDER):   1.4   IRAY   rend error: Unable to allocate 134217728 bytes from 13639680 bytes of available device memory

BeeMKay

Does the error happen every time, no matter what you are rendering, or just in that particular scene?

If the latter, what size is the scene you are running, and how much free memory do you have in your RAM when you load it? Rule of thumb is that a scene adds its size again to the memory when you are rendering in CPU, so if you have 16 GB RAM, and an 8GB size scene, when trying to render you would be at 16 GB+ from the cene alone. Insta-crash. The last message also points at a memory problem:

134.217.728 bytes from 13.639.680 bytes of available device memory saying that it tried to allocate 134 MB when it just had 13MB of free space on your card (if I in terprete that correctly)

Could you please check your Task manager as to the used RAM before and after you load the scene into DAZ Studio?

tristanthorne1997

It happens in complex scenes. But like I said, sometimes I can render the same scene after it crashes just by reloading it and trying again.

I'm currently trying to render a somewhat complex scene and it has been stuck at 0% progress forever. I opened Task Manager per your suggestion and noticed that the CPU was at 99% capacity under the Daz application, while the GPU isn't even being used at all! What is up with that? I have a GTX 970 card. Please see attachment.