Daz3d using 2Gb VRAM for every render.

alternatyv

Hi, 

Daz3d, uses 1.906 Gb of Vram regardless of rendering, and i don't know why.

Can you guys have a solution or help me with this problem?

Here my specs :

 

RTX 3060 Ti 8gb

32Go Ram DDR4

Intel i5-12400F

And the part of the log :

 

2023-05-04 05:16:29.885 Iray [INFO] - IRAY:RENDER ::   1.8   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 3060 Ti): Allocated 87.012 MiB for frame buffer
2023-05-04 05:16:29.885 Iray [INFO] - IRAY:RENDER ::   1.8   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 3060 Ti): Allocated 1.906 GiB of work space (2048k active samples in 0.000s)
2023-05-04 05:16:29.885 Iray [INFO] - IRAY:RENDER ::   1.8   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 3060 Ti): Optimizing for cooperative usage (performance could be sacrificed)
2023-05-04 05:16:30.119 Iray [INFO] - IRAY:RENDER ::   1.8   IRAY   rend info : Allocating 1-layer frame buffer

 

Thanks.

 

PerttiA

Actually, much more is used, but the current DS doesn't report the VRAM usage for geometry and textures anymore.
That 1.9GiB is needed for the "Working Space" for the rendering process, the process can adjust it down if one is close to running out of VRAM, but if if gets smaller than 1GiB, the rendering starts getting slower.

In general an 8GB RTX GPU running on W10, will loose half of the VRAM to the baseloads by W10, DS, the Scene and the Working Space. Non-RTX GPU's will loose an additional 1GB for software emulation of the RTX features.

alternatyv

PerttiA said:

Actually, much more is used, but the current DS doesn't report the VRAM usage for geometry and textures anymore.
That 1.9GiB is needed for the "Working Space" for the rendering process, the process can adjust it down if one is close to running out of VRAM, but if if gets smaller than 1GiB, the rendering starts getting slower.

In general an 8GB RTX GPU running on W10, will loose half of the VRAM to the baseloads by W10, DS, the Scene and the Working Space. Non-RTX GPU's will loose an additional 1GB for software emulation of the RTX features.

Okat i see, so it's normal, i though it was a bug or something, or that my graphic card wasn't "fully used".

Thanks for your help, i hope it will awnser other people who can thinks it's a problem too.

alternatyv

Alright I see thank you for your help, hope this helps others who might think this is a problem.

So, it will be same with windows 11 i guess ?

There's no real solution to make W10 / 11 not loose half of the vram on the baseloads ? 

Because i guess that 8GB Vram il clearly not enough, or at a certain point for animation for exemple, it can be a problem ?

prixat

On windows 11 and a 12GB 3060, I get a slightly different amount of allocated work space:

CUDA device 0 (NVIDIA GeForce RTX 3060): Allocated 1.969 GiB of work space (2048k active samples in 0.000s)

 

For animation, while rendering to frames, it should clear memory between frames but there have been problems reported with that 'clearing' in the past versions.

The Frame Buffer is dependent on your render resolution:

CUDA device 0 (NVIDIA GeForce RTX 3060): Allocated 21.094 MiB for frame buffer ----------720p
CUDA device 0 (NVIDIA GeForce RTX 3060): Allocated 1.969 GiB of work space (2048k active samples in 0.000s)

CUDA device 0 (NVIDIA GeForce RTX 3060): Allocated 47.461 MiB for frame buffer ------------1080p
CUDA device 0 (NVIDIA GeForce RTX 3060): Allocated 1.969 GiB of work space (2048k active samples in 0.000s)

CUDA device 0 (NVIDIA GeForce RTX 3060): Allocated 189.844 MiB for frame buffer -------------2160p
CUDA device 0 (NVIDIA GeForce RTX 3060): Allocated 1.969 GiB of work space (2048k active samples in 0.000s)

PerttiA

alternatyv said:

Alright I see thank you for your help, hope this helps others who might think this is a problem.

So, it will be same with windows 11 i guess ?

There's no real solution to make W10 / 11 not loose half of the vram on the baseloads ? 

Because i guess that 8GB Vram il clearly not enough, or at a certain point for animation for exemple, it can be a problem ?

8GB's of VRAM started being a restriction some 2+ years ago, mostly because the newer assets were heavier on the system.

As far as newer Windows making something lighter on the system... [Giggle]... One of the reasons I'm still using W7, which takes only 200MB's of VRAM with 3 monitors connected.