NVLINK for 4 2080ti

[cmittenaere]

Hello community,

I'm using octane render standalone 2018.3.
I've 4x rtx2080 ti wich is connect to 4 pci e 16x
Everyting work but I want use nvlink for get 2x 22 go vram.
I saw than it's import to active sli on nvidia panel config, but I can active only one sli.
So octane can active only one nvlink ...

Can you help me ?
Thank's

[nejck]

Afaik you need to plug the monitor into the second 2 cards, enable SLI on them and then disconnect the monitor but put in a dummy monitor plug (possibly once you've already shutdown your PC). Then plug in the monitor into your first 2 cards and enable SLI on them again. That way you kind of trick all of the cards to still have SLI on.

[glimpse]

as Nejck pointed You need to do that in specific steps, here is a bit more info on this topic.

[glimpse]

"To use SLI with NVIDIA Turing GPUs, all displays must be connected to the master GPU"

from driver release notes

[jimho]

I also tried for quite a few times, 2x2 Sli seems not working, seems it is Nvidia not allowing this happen,
not sure otoy can make it work on the both pairs, guess it need to jump over the nvidia control panel's setting...

[jimho]

as Nejck pointed You need to do that in specific steps, here is a bit more info on this topic.

Hi Glimpse, Could you give some hint on what the facebook said,
I am at a place where have no access to facebook...

Jim

[SSmolak]

It will not work anymore : https://www.nvidia.com/en-us/geforce/fo ... udio-driv/

[jimho]

It will not work anymore : https://www.nvidia.com/en-us/geforce/fo ... udio-driv/

Thanks for the info,
Guess it will never back...

[jimho]

It seems even for quadro, nvidia drivers do not support multiple pairs...
https://www.pugetsystems.com/labs/artic ... s-10-1688/