6 Replies Latest reply on Oct 16, 2010 5:02 PM by himanshu.gautam

    Multiple GPU problem

      How to use multiple GPU to do calculation


         Hi All:

               The "simpleMultipleDevice" seems wrongly written in the SDK sample, for example, the "input" and "output" is reversed in the kernel.

               Also it seems I can only use GPU[0] to do calculation, someone told me to disable crossfire, I did it , then I can only find two GPUs in my system.(Used to be four).

               Here is my sistem:

               CPU: i7,        Operatiing system: win 7 64 bit

              GPU:  two HD 5970.

            This problem has bothered me for a long time, any explanations on this?

        Thanks a lot.