three his 280x ,win7 13.1dirver.just get 57xx, it's too bad. use -t 0,0,1,1,2,2 .
if add -a 1, the miner can not run.
so, help me!
Which version do you use? I guess that you're using an old one. Use v0.1.4 or v0.2.2. If your monitor is attached to GPU 0, then I would use -t 0,1,1,2,2 and I would try -t 0,1,2 too. -a 1 should be fastest.
Hello NaN, I thought 0,1,2.... is the number of card ? because for 4 card i use 0,1,2,3.
What exactly is his number? eg for a single card I put t 0? it would change something to put 0,1,2 for a single card?
The numbers after -t are the DeviceIDs, which are shown during startup (DeviceID x). For each number in the list the miner starts one thread. Normally, the first GPU has DeviceID 0 so that -t 0 mines with one thread on the first card and -t 1 means that the miner uses one thread on the second card, etc. Thus, -t 2,2 means that the miner should launch two threads on the third GPU. It might increase your performance but at least the Windows driver of R9 290(X) seems to be broken and only the Linux driver functions with full speed. Just try whether -t 0,1,1,2,2,3,3 or -t 0,1,2,3 give you better performance if you are using four GPUs.