Hi Tom,
well, the quotes you give are about different software.
It depends on the application, if and how it can use different GPUs.
But since I have only one GPU myself, I cannot give you watertight advice on that.
I only remember reading about it a couple times and that there is an option for it.
With Photoscan for example, you can define the use of GPUs very precisely and also deactivate CPU-Cores accordingly.
Also Wishgranter told me once that the cards don’t even need to be able to communicate by SLI or anything like that.
Maybe he will drop by eventually and confirm or correct me.
Hehe, I just noticed he did it already while I was still typing… :lol:
One example for a different post:
2x Geforce GTX 1080