I am trying to reduce a current installation of 7 PCs networked together to run a simulator application running on a video wall of 6x4 1080p displays.
Each machine runs 4 displays. One machine acts as the simulator and sends data to the 6 graphics PCs to render and output to the video wall.
Task is to reduce this to a single (or max 2) PCs. I think we can probably get sufficient performance for rendering the unity application on a 4080/4090 or A series equivalent however the bigger issue seems to get getting the video to 24 displays due to the max 4 display limit per GPU.
I hoped to use the MST Feature of the displays to essentially run 6x 4K displays (6 physical connections over a couple of GPUs with each of the 6 displays daisy chained to 3 others) but apparently this isn’t possible despite the overall resolution being the same? Frustratingly I can’t see why it is any different but seems to be a software limitation?
It looks like NVIDIA used to make an 8 port card (NVS 810) but this is now discontinued without a replacement?
Any ideas? Outputting to a video wall processor seems to be around 3x the price of just running 7 mid-spec machines. We want to optimise our setup but can’t justify that premium.
Happy to run multiple GPUs if needed, possibly combined with some external hardware but PCI bandwidth (and physical slot count) may become a limitation if it’s more than 3-4cards.