CUDA rendering does'nt work (but CPU's one is OK..) Message :[RTOpenCL_impl::validate] 1: Abort was requested

[sverine_omichessan]

Hello,
I try to render with the CUDA option but it doesn't work: it takes long time to upload different things then show this message [RTOpenCL_impl::validate] 1: Abort was requested
I try with CPU and it's ok.

Config:

GPU: NVIDIA Quadro P1000 (VRAM 4GO)
CPU:INTEL(R) XEON(R) W-2102 CPU @ 2.90GHz
32 GO RAM

I've already try to change the value for the grass level of detail (under 100) Read somewhere..
My driver NVIDIA is OK I have the lastest version of Vray and Revit 2022.

Do you know what's the issue? How can I manage to resolve it and maybe what's part I have to improve (GPU, CPU or more RAM)


Thx (and sorry for my english ^^)

[tsvetomira.girginova]

Dear sverine_omichessan, hello.

In order to be more helpful, please provide us the following information:

• is it happening only in this particular scene
• is it happening in all views (both exterior and interior)
• are Artificial lights ON or OFF
• if you disable the Fur (used for Grass) is there any change

In conclusion, 4GB vRAM isn't that much, but the best thing will be to take a look at the scene and advice how the scene could be optimized.
If you agree I will describe what information we need and where to send it safely.
Be sure that it will be used only for support purposes.

Best regards,
TS

[sverine_omichessan]

Hello,
Thx for your answer

• It's happen in particular project (when it's an advanced project, when it's just few basic walls it's ok)
• In all views
• there is no artifical lights (only dome light)
• I try with no fur and it's the same

I'm ok to send you more info.

Regards,

[tsvetomira.girginova]

Thank you for sharing.
Please via our contact form send us the .rvt file itself + archive made like this:

1. V-Ray > Settings > Paths & Sharing > check Export as Archive
2. V-Ray > Render > Export V-Ray Scene

Visually explained here.
Also please include the installed graphics card driver version.

Share here the ticket number thereafter.
Waiting for it.

[tsvetomira.girginova]

Hello again, sverine_omichessan!

After investigating your scene in detail could approve that the issue is vRAM related.
In your particular case we could recommend:

• using CPU
• using Hybrid rendering = CUDA with only CPU chosen
• upgrading your setup (more VRAM capability), if you want to perform successful GPU rendering in more detailed projects

Other helpful advices are published here.

Your scene is using around 4GB vRAM without the Cosmos models.
When adding them, the usage is definitely over 4GB.
VFB2 is providing now direct access to statistics, take a look here.

Interesting to know is that some GPU optimizations are accessible through VRayPlugins.json (open with Notepad or similar) which could be found here:

[I]C:\Users\[COLOR=#e74c3c]USERNAME[/COLOR]\AppData\Roaming\Chaos Group\V-Ray for Revit 20**[/I]

If you change the 0 to 1 here:

{
"Parameter": "OpenclResizeTextures",
"Plugin": "SettingsRTEngine",
"SettingName": "GPU Resize textures",
"Type": "int",
"Constant": "[COLOR=#27ae60]1[/COLOR]"
}

you will turn on On-demand mipmapping mode of textures.
This option will be exposed in the UI in our further updates, for now it that way accessible.

Unfortunately, in your scene this won't help to fit into 4GB if you use the same count of Cosmos models as in the current phase of the model.

Contact us again if something more is needed or is still unclear.

Best regards,
TS