6 Replies Latest reply on Apr 19, 2013 3:14 AM by captian-n

    Catalyst 12.8 recognizes only 4 of 5 GPU and clGetPlatformIDs() crashes


      It´s seems there are BUGs for multi GPU in the latest whgl driver of AMD. Only 4 GPU of 5 are correct recognized. The Catalyst 12.6 has done that correct.


      The first call to clGetPlatformIDs(0, NULL, &numPlatforms); crashes like described before in the discussion:

      clGetPlatformIDs() crashes with 5 GPUs Catalyst 12.6 whql

      but it happens more often now. It crashes again in the aticaldd64.dll.



      Is their an explicit testing for OpenCL applications with multi GPU configs (more than 4 GPU) at AMD side, because that errors happens since the new CGN architecture is released. That is my fourth post to that theme and I not the alone with that problems.


      My Machine config is:

      HP Z820

      5x HD 7950 - four in a Cubix GPUXpander.

      64GB RAM

      Windows 7 Ult x64


      Best regards Nils.