Setting up cgminer config for different GPUs

[edge929]

I'm well aware of how to set values for multiple GPUs but what I'm not sure of is how cgminer orders the cards. If I run 2x 290s and 2x 270s, how does cgminer order these (GPU0, GPU1, etc)? In other words, how do I know which is which? I prefer to use a config file as opposed to inline execution commands.

Is it based on the order that Windows sees them (placement of PCIe slots)? Is there a way to specify which GPU I want set? I have noticed on my 290s that cgminer numbers the cards opposite of what I would expect with the primary PCIe 16x slot being GPU1 (and not GPU0). Afterburner sees them as I would expect.

Order of cards: 290, 290, 270, 270

"gpu-engine" : "1060,1025,1100,1100",
"gpu-memclock" : "1425,1375,1250,1250"

I'm sure I could figure this out with trial and error but want to avoid clocking my 290s up to 1100 (they won't be stable).

 

[Core32]

Use the flag..... cgminer -n to get at least part of the info.
You could do it in steps, adding a 290, then a 270, then second 290, ......

 

[edge929]

But will cgminer change the order as I add them? How do I know if the settings for the card I added goes before or after the existing one?

 

[Parja]

But will cgminer change the order as I add them?

No, you have to make the order you put them in conform to their order in the system.

Run cgminer -n. That will tell you which card has which ID. Then you update your config for that order.

 

[edge929]

No, you have to make the order you put them in conform to their order in the system.

Run cgminer -n. That will tell you which card has which ID. Then you update your config for that order.

Got it. Thanks guys.