Someone now why it don't work? Thank you !
and sorry for my english, i'm french abed pretty bad in hardware too -_-
how is nvlink supposed to work ?
Moderators: ChrisHekman, aoktar
Hi ! i need your help on something! we have a huge scene with lot of texture at work and we reach the limit of all the vram , so we get an nvlink bridge and link 2 2080ti but it seems that the memory pooling doesn't work... it still crash.. I activate the nvlink in nvidia panel, put the peer in octane....but still crash (it work if we use the out or core) but we have the nvlink.. so it will be cool to use it 
Someone now why it don't work? Thank you !
and sorry for my english, i'm french abed pretty bad in hardware too -_-
Someone now why it don't work? Thank you !
and sorry for my english, i'm french abed pretty bad in hardware too -_-
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leehenshall
- Posts: 184
- Joined: Sun Oct 25, 2015 5:44 pm
- Location: England
- Contact:
I've not found NVLink to be very useful in Octane (yet) In scenes where I could max out physical vRam, I would get regular Cuda/Optix errors when rendering with NVLink enabled.
In the latest 2020.1.x builds the developers have acknowledged this issue and have marked it as "Currently Under Investigation" It is really helpful for them to communicate this in my opinion:
In Standalone there is a useful blue Peer to Peer usage bar in the bottom right hand corner of the render window. In Octane for C4D there is no such user interface in the live viewer which also makes it less useful in production.
I'm sure Ahmet will add this when we gets time though.
In case you don't already know NVLink allows you to use your second second GPUs memory as an Out of Core source. Due to the transfer rates of PCI Express, it is much more desirable to do this instead of using system memory because there will be less performance degradation.
But at present, unfortunately my NVLink adaptor remains unused due to software still looking for the best way to utilize the technology.
In the latest 2020.1.x builds the developers have acknowledged this issue and have marked it as "Currently Under Investigation" It is really helpful for them to communicate this in my opinion:
I'm sure Ahmet will add this when we gets time though.
In case you don't already know NVLink allows you to use your second second GPUs memory as an Out of Core source. Due to the transfer rates of PCI Express, it is much more desirable to do this instead of using system memory because there will be less performance degradation.
But at present, unfortunately my NVLink adaptor remains unused due to software still looking for the best way to utilize the technology.
Just in case you haven't explored this aspect, you might get some more memory wiggle room by manually setting the compression options on your textures.
http://www.aoktar.com/octane/OCTANE%20H ... ssion.html
http://www.aoktar.com/octane/OCTANE%20H ... ssion.html
Animation Technical Director - Washington DC
Thank you @frankmci i have the octane 2020 version but it seems that this option doesn't exist anymore. You kno we also tried to compress directuly our texture in DDS format and save a lot of space but we really want to know how use the nvlink with octane T_T