nvidia rtx 6000 ada crashing Vray 7 3dsmax 2024 GPU/rt

[randy_dunnn]

Hi all,
Requesting help and/or guidance.
Cant seem to render with GPU.
When I get errors they are:

______

[11:38:40.231] error : c:\ci\cgrepo\vraysdk\samples\vray_plugins\rt_priva te\rt_opencl_(2153) : cuda error 700

[vutils::voptix:ptixpipelinewrapper::launch] 7900: optix error encountered in vray_optix7.cpp[315]. error code 7900

______

and sometimes 3dsmax will just quit. I've sent in all the reports.
Cant send the Scene in (work)
most of the time after rendering a few frames it stops and stops rendering,,, then If i tell it to continue then it crashes.

I did search and only found others asking for help also with the same or similar issues.

any fixes or help? at 1/3 the time the CPU renders of the same scene, i need this to work.

I've tried driver 572.16 and am currently on 573.06.
both have the same set of errors.
only happens with GPU rendering.

[Muhammed_Hamed]

Hi randy_dunnn and welcome to the forums!

Could you please install the recommended driver 572.xx with the clean install option turned on. Then restart your machine and rerender your sequence. It could be helpful to keep an eye on GPU memory usage. There was a memory leak with other drivers recently, I suspect this is the issue here. Let me know how this goes

Best,
Muhammed

[randy_dunnn]

Hi Muhammed
Yes I did that:
572.16-desktop-win10-win11-64bit-international-nsd-dch-whql.exe

same results.

[Muhammed_Hamed]

Are you using any Frame Buffer features like Render region?
Could you please try with GPU LC, does that help with stability?
If we reproduce on our side I will make sure this gets addressed. We do have the RTX 6000 Ada at office to test with
Is there a chance you could send us a sample scene that crashes for you, under NDA?

Best,
Muhammed

[randy_dunnn]

most of my work falls under the US ITAR restrictions , so I cant send you anything, sorry,

I will try with GPU LC.

[randy_dunnn]

572.16-desktop-win10-win11-64bit-international-nsd-dch-whql.exe
3dsmax 2024


this is after rendering 7 frames without errors:

[10:56:15.943] Error : C:\CI\cgrepo\vraysdk\samples\vray_plugins\rt_priva te\rt_opencl_(2175) : CUDA error 700

[10:56:15.954] Task ended : Building GPU light cache... (completed in 0h 0m 0.2s)

[10:56:16.015] Closing RTEngine (cancelled)

[10:56:16.015] Max. Mpaths per second: 0.000000

[10:56:16.015] Sampling level reached: 0 samples per pixel

[10:56:16.018] V-Ray GPU kernel render time: 0.00s

[10:56:16.018] Task ended : Rendering image... (completed in 0h 0m 1.3s)

[10:56:16.018] Total GPU samples 992800

[10:56:16.018] GPU Memory Stats:

[10:56:16.018] Device[0] : NVIDIA RTX 6000 Ada Generation

[10:56:16.020] Textures : 2.61MiB

[10:56:16.020] Dynamic geometry: 13.09MiB

[10:56:16.020] Pinned : 5.07MiB

[10:56:16.020] Misc : 1.46MiB

[10:56:16.020] Internal state : 596.82MiB

[10:56:16.022] Lights : 5.00MiB

[10:56:16.022] LightCache : 1.31MiB

[10:56:16.022] User attributes: 0.01MiB

[10:56:16.022] Texture data : 124.40MiB

[10:56:16.022] Total : 749.78MiB

[10:56:16.024] OCLBufman stats:

[10:56:16.024] Owners count : 68

[10:56:16.024] With replace ptrs: 168

[10:56:16.024] Geom pointers : 8

[10:56:16.024] Light pointers : 21

[10:56:16.026] Textures pointers: 330

[10:56:16.026] NVLink allocated : 0

[10:56:16.026] Misc pointers : 12

[10:56:16.026] Total pointers : 409

[10:56:16.028] Device 0 statistics:

[10:56:16.029] GPU time: 28.615071 %

[10:56:16.029] GPU ray trace time 78.647687 %

[10:56:16.029] Transfer to GPU time 21.174377 %

[10:56:16.029] Transfer from GPU time 0.177936 %

[10:56:16.029] Error : [MemoryManagerGpu::releaseUnmappedMemoryFromInstanc e] 700: Could not release device buffer

[10:56:16.042] Building GPU light cache...: done [00:00:00.2] (100.0%)

[10:56:16.042] Number of raycasts: 0 (0.00 per pixel)

[10:56:16.042] Camera rays: 0 (0.00 per pixel)

[10:56:16.042] Shadow rays: 0 (0.00 per pixel)

[10:56:16.042] GI rays: 0 (0.00 per pixel)

[10:56:16.044] Reflection rays: 0 (0.00 per pixel)

[10:56:16.044] Refraction rays: 0 (0.00 per pixel)

[10:56:16.044] Unshaded rays: 0 (0.00 per pixel)

[10:56:16.044] Number of light evaluations: 0 (0.00 per pixel)

[10:56:16.046] Task started : Clearing geometry...

[10:56:16.049] Task ended : Clearing geometry... (completed in 0h 0m 0.0s)

[10:56:16.049] Number of intersectable primitives: 135

[10:56:16.049] SD triangles: 0

[10:56:16.049] MB triangles: 0

[10:56:16.049] Static primitives: 122

[10:56:16.052] Moving primitives: 13

[10:56:16.052] Infinite primitives: 0

[10:56:16.052] Static hair segments: 0

[10:56:16.052] Moving hair segments: 0

[10:56:16.054] Clearing geometry...: done [00:52:45.4] (100.0%)

[10:56:16.322] Maximum memory usage for attributes: 0.00 MB

[10:56:16.347] Error : 2 error(s), 0 warning(s)

[10:56:16.355]


you said to try "GPU LC"
use light cache with the GPU 7 hotfix?
or
install the new VRAY GPU driver (that we don't have a license for)

[Muhammed_Hamed]

This one is a mind bender, Error 700 could be many things including hardware and software issues. Do you keep an eye on GPU memory usage, does V-Ray GPU run out of GPU memory?
Do you have displacement in this scene?
Could you please uninstall the Chaos Cosmos browser and disable the Comos service then renrender the sequence?
Also try without GPU LC, use BF/BF GI it will be a bit slower but will use less GPU memory

Best,
Muhammed