Remote GPU confussion

[scottfolts1]

I've got a GTX 1080 GPU in my workstation and (3) Titan X's in a new BOXX slave. I'm trying to set up VRAY RT with a the most flexibility and I'm unclear how to control which GPUs are used when...

 

 

I thought I should be seeing all 4 GPU devices in the "VRAY RT Render Devices Select", so I could uncheck the card driving the viewport, but I'm only seeing the 1080 that's physically in that machine.

 

 

If I turn on DR to access the 3 Titans and uncheck the 1080 the render fails;

If I turn on DR to access 3 Titans and leave 1080 checked, It uses the 1080 and viewport performance degrades. (VFB has warning ...UI might be sluggish")

 

 

My question is why aren't Titans showing in device list, but working in DR? And how do I not use the local GPU for rendering?

Edited December 21, 2016 by scottfolts1