I just wanted to leave out there that tonight I tested what happen when you try to run oobabooga with 8x 1060 GTX on a 13B model.

First of all it works like perfectly. No load on the cpu and 100% equal load on all gpu’s.

But sadly, those usb cables for the risers dont have the bandwidth to make it a viable option.

I get 0.47 token/s

So for anyone that Google this shenanigan, here’s the answer.

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*EDIT

I’d add that CUDA computing is equally shared across the card but not the vram usage. A LOT of vram is wasted in the process of sending data to compute to the other cards.