Thanks.  I have not tried it yet, but it looks good, and I am confident it will work good on my nvidia cards (they seem to work good in linux).  My biggest concern is getting linux to work on my amd cards.  I have a rig that I want to put 12 rx 580's on, but had to split it up into half nvidia and half amd and run windows on it (I guess windows can't run 12 of the same cards).  If I can get linux to work with the amd cards, I will put them all on that one rig, then setup 2 rigs (6 nvidia each) with nvoc.

So I guess I am saying my first step is to get the 12 rx rig working in linux if that is possible.