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DAZ switches to CPU render even though VRAM usage never exceeds 50%

lucas.carlyle007lucas.carlyle007 Posts: 0
in Technical Help (nuts n bolts)

Problem is already in the title, but I don't understand what's going on.

I have an RTX 2080 Super, Ryzen 7 3700X w/ 16GB of memory. Only the GPU is checked for renders, though CPU fallback is allowed because the render would stop otherwise. 

I've read that DAZ switches to CPU render once the VRAM is full. But both GPU-Z and Taskmanager report that VRAM usage never exceeds 4200-4300mb before CPU render kicks in. I have the lastest Nvidia Studio drivers, latest DAZ version and I even went ahead and reinstalled Windows. I don't know what's causing it but it's really annoying because I can barely render anything quickly, CPU render takes ages. 

I also render reletively small scenes with one or two persons and an environment. The scene optimiser script doesn't help either....

Any ideas? Don't really want to buy a new GPU for the little stuff I do...

Comments

  • PerttiAPerttiA Posts: 10,024

    Help->Troubleshooting->View Log File

    Attach your log to your post with the "Attach a File" above the "Post Comment" button

    There are badly made products which can bring down even the high end systems all by themselves, and if the product is too heavy, it still reserves VRAM even when rendering is done on CPU

  • lucas.carlyle007lucas.carlyle007 Posts: 0

    2021-09-27 01:12:15.601 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Scene processed in 2.605s
    2021-09-27 01:12:15.604 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Allocated 71.192 MiB for frame buffer
    2021-09-27 01:12:15.610 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Allocated 1.750 GiB of work space (2048k active samples in 0.006s)
    2021-09-27 01:12:15.610 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Used for display, optimizing for interactive usage (performance could be sacrificed)
    2021-09-27 01:12:16.292 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : Allocating 1-layer frame buffer
    2021-09-27 01:12:16.312 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00001 iterations after 3.316s.
    2021-09-27 01:12:16.956 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00002 iterations after 3.959s.
    2021-09-27 01:12:18.144 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00004 iterations after 5.147s.
    2021-09-27 01:12:20.227 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.2   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): an illegal memory access was encountered (while launching CUDA renderer in <internal>:966)
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.2   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Failed to launch renderer
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.4   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Device failed while rendering
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [WARNING] - IRAY:RENDER ::   1.4   IRAY   rend warn : CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER) is no longer available for rendering.
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [WARNING] - IRAY:RENDER ::   1.4   IRAY   rend warn : All available GPUs failed.
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [WARNING] - IRAY:RENDER ::   1.4   IRAY   rend warn : No devices activated. Enabling CPU fallback.
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.4   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): an illegal memory access was encountered (while initializing memory buffer)
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.4   IRAY   rend error: All workers failed: aborting render
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.4   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): an illegal memory access was encountered (while de-allocating memory)
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.4   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): an illegal memory access was encountered (while de-allocating memory)

  • lucas.carlyle007lucas.carlyle007 Posts: 0

    PerttiA said:

    Help->Troubleshooting->View Log File

    Attach your log to your post with the "Attach a File" above the "Post Comment" button

    There are badly made products which can bring down even the high end systems all by themselves, and if the product is too heavy, it still reserves VRAM even when rendering is done on CPU

    2021-09-27 01:12:15.601 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Scene processed in 2.605s
    2021-09-27 01:12:15.604 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Allocated 71.192 MiB for frame buffer
    2021-09-27 01:12:15.610 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Allocated 1.750 GiB of work space (2048k active samples in 0.006s)
    2021-09-27 01:12:15.610 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Used for display, optimizing for interactive usage (performance could be sacrificed)
    2021-09-27 01:12:16.292 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : Allocating 1-layer frame buffer
    2021-09-27 01:12:16.312 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00001 iterations after 3.316s.
    2021-09-27 01:12:16.956 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00002 iterations after 3.959s.
    2021-09-27 01:12:18.144 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00004 iterations after 5.147s.
    2021-09-27 01:12:20.227 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.2   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): an illegal memory access was encountered (while launching CUDA renderer in <internal>:966)
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.2   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Failed to launch renderer
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.4   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Device failed while rendering
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [WARNING] - IRAY:RENDER ::   1.4   IRAY   rend warn : CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER) is no longer available for rendering.
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [WARNING] - IRAY:RENDER ::   1.4   IRAY   rend warn : All available GPUs failed.
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [WARNING] - IRAY:RENDER ::   1.4   IRAY   rend warn : No devices activated. Enabling CPU fallback.
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.4   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): an illegal memory access was encountered (while initializing memory buffer)
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.4   IRAY   rend error: All workers failed: aborting render
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.4   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): an illegal memory access was encountered (while de-allocating memory)
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.4   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): an illegal memory access was encountered (while de-allocating memory) 

  • lucas.carlyle007lucas.carlyle007 Posts: 0

    2021-09-27 01:12:15.610 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Allocated 1.750 GiB of work space (2048k active samples in 0.006s)
    2021-09-27 01:12:15.610 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Used for display, optimizing for interactive usage (performance could be sacrificed)
    2021-09-27 01:12:16.292 Iray [INFO] - IRAY:RENDER ::   1.4   IRAY   rend info : Allocating 1-layer frame buffer
    2021-09-27 01:12:16.312 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00001 iterations after 3.316s.
    2021-09-27 01:12:16.956 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00002 iterations after 3.959s.
    2021-09-27 01:12:18.144 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00004 iterations after 5.147s.
    2021-09-27 01:12:20.227 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.2   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): an illegal memory access was encountered (while launching CUDA renderer in <internal>:966)
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.2   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Failed to launch renderer
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [ERROR] - IRAY:RENDER ::   1.4   IRAY   rend error: CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER): Device failed while rendering
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [WARNING] - IRAY:RENDER ::   1.4   IRAY   rend warn : CUDA device 0 (NVIDIA GeForce RTX 2080 SUPER) is no longer available for rendering.
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [WARNING] - IRAY:RENDER ::   1.4   IRAY   rend warn : All available GPUs failed.
    2021-09-27 01:12:20.228 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [WARNING] - IRAY:RENDER ::   1.4   IRAY   rend warn : No devices activated. Enabling CPU fallback.
     

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