Do we have a memory leak or??

V-Ray V-Ray for Houdini Issues
1

So I am trying to render a set of frames and it will crash with a (700) error which from what I understand this may be a memory issue. I have occ turned on atm
This is a pretty big sim using RTX to render by the way

Houdini 20.0.590
Vray 2.2

Frame 1
[11:12:29.326] Peak memory for “Misc.”: 9.72 GiB

Frame 16
[11:26:04.663] Peak memory for “Misc.”: 15.30 GiB

I did run about 100 frames last night and peak memory was like 100gig​

2

More info

Could not allocate 6990500 bytes of GPU memory
30636: Fatal error: Segmentation fault
Could not allocate 6990500 bytes of GPU memory
Could not allocate 6990500 bytes of GPU memory

FromVFB Below

[VUtils::VOptix::OptixPipelineWrapper::launch] 7900: OptiX error encountered in vray_optix7.cpp[319]. Error Code 7900
[14:58:07.330] Error : [VUtils::VOptix::OptixPipelineWrapper::launch] 7900: OptiX error encountered in vray_optix7.cpp[319]. Error Code 7900
[14:58:07.332] Error : C:\CI\cgrepo\vraysdk\samples\vray_plugins\rt_priva te\rt_opencl_(3488) : CUDA error 700​

3

Dear @mike_jag , hello.

Thank you for contacting us.

Please share with us the exact V-Ray version used (V-Ray > About V-Ray > Copy to Clipboard and paste here).
In addition please confirm also the installed GPU driver version. The recommended one could be found on this official page: V-Ray GPU | GPU rendering by Chaos

We have encountered something similar in other V-Ray integrations, but without the exact V-Ray version is hard to match.

Waiting for your answer.

Best regards,
TS

4

Here is the info, Sorry for the delay

This is happening on 3 different systems by the way. All but one have the recommended driver with the same version of Vray as well as Houdini.

V-Ray for Houdini hash:82c1b12 from 19 Feb 2024 11:02
V-Ray Core 6.20.05 [31923cf8] from 17 Feb 2024​

5

Thank you for the details.

Please try rendering the same scene with our latest stable builds, available here: Chaos
Certain improvements are implemented there.

If you are still experiencing this, please provide us with a test scene to perform actions in our environment with it.
Thanks in advance.

6

Thank you, I will try that today. Hopefully, this will fix the issue