I have two graphics card, one r9 290 and a 6950, running on one instance of cgminer 3.5.2.
I noticed that the r9 290 runs best with gpu-threads: "2" and the 6950 does best with 1 thread (it fails to run at 2).
So is there a way to configure each individual card its own value without having to run two instances of cgminer??
Thanks in advance!
BFGMiner 4.0 (due Soon Now) has this ability. If you want to give it a shot you can compile from the current Git source code.