- No groups in the scene
- GPU head room: 100 - dontwork
- GPU head room: 512 - works
- GPU head room: 1024 - works
CUDA errors
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paride4331
- Posts: 3819
- Joined: Fri Sep 18, 2015 7:19 am
Hi samsue,
I am not a developer so I could say senseless things, but I think it depends on issues that come with the latest nvidia drivers when we need movements of large data packets (geometries and / or textures) between VRAM and RAM and VRAM are full.
keep in mind that 4k monitor/s, software editing, internet browser eat VRAM and Ram therefore Octane ends up having little VRAM.
Even denoiser wants VRAM.
My personal idea about a good hardware configuration to render is:
1 GPU to connect monitor/s (Windows and applications will use this GPU and VRAM to work).
It is deactivated in Octane. I will use it for denoiser.
1 or more GPU active in Octane.
Minimum 64 GB Ram (3dsMax as other applications eats Ram).
Then I will set 512MB head room (you can try 1024MB but it depends on VRAM available).
With very large scenes increase parallel sample and Max tile starting from 2/4 > 3/6 > 4/8..
And last but not least, optimize scenes e.g. having a very high poly forest with 8k textures away from the camera 500 meters will not make your render more beautiful but will eat a lot of VRAM or use Greyscale image texture node (specular, roughness, opacity, bump, diplacement ..) when needed instead of RGB image texture node.
Avoid grouping objects that create high amounts of polygons and textures. VRAM better manages small data packets.
Make all proxy movable.
Regards
I am not a developer so I could say senseless things, but I think it depends on issues that come with the latest nvidia drivers when we need movements of large data packets (geometries and / or textures) between VRAM and RAM and VRAM are full.
keep in mind that 4k monitor/s, software editing, internet browser eat VRAM and Ram therefore Octane ends up having little VRAM.
Even denoiser wants VRAM.
My personal idea about a good hardware configuration to render is:
1 GPU to connect monitor/s (Windows and applications will use this GPU and VRAM to work).
It is deactivated in Octane. I will use it for denoiser.
1 or more GPU active in Octane.
Minimum 64 GB Ram (3dsMax as other applications eats Ram).
Then I will set 512MB head room (you can try 1024MB but it depends on VRAM available).
With very large scenes increase parallel sample and Max tile starting from 2/4 > 3/6 > 4/8..
And last but not least, optimize scenes e.g. having a very high poly forest with 8k textures away from the camera 500 meters will not make your render more beautiful but will eat a lot of VRAM or use Greyscale image texture node (specular, roughness, opacity, bump, diplacement ..) when needed instead of RGB image texture node.
Avoid grouping objects that create high amounts of polygons and textures. VRAM better manages small data packets.
Make all proxy movable.
Regards
Last edited by paride4331 on Fri Apr 24, 2020 6:34 am, edited 1 time in total.
2 x Evga Titan X Hybrid / 3 x Evga RTX 2070 super Hybrid
So I'm assuming parenting instead of grouping would be the better way to go for Octane?
Thank you. This was helpful. Maybe someone can write this in the max doc?
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paride4331
- Posts: 3819
- Joined: Fri Sep 18, 2015 7:19 am
Hi samsue,samsue wrote:Hi,
i got this error.
did you check on out-of-core using Nvlink?
Regards?
2 x Evga Titan X Hybrid / 3 x Evga RTX 2070 super Hybrid