3 Replies Latest reply on Apr 30, 2012 9:48 PM by drallan

    Problems with OpenCL-App from Milkyway@home

    robbstark

      Hello,

      I have problems with every newer driver than the release driver (8.921.2-120119a-132101E-ATI). I encounter the following problems with the OpenCL-Application:

      • Some tasks are not ending or send to CPU instead.
      • Often I encounter the message: "amdkmdap not responding and was restartet" (translated from german)
      • The screen is gone black and cannot be restored except of doing a reset.

      System Information:

      C2Q 9550 @ 3.4 GHz, Asus P5Q-E, 8GB, Win7 64 Bit, Boinc-Version 7.0.25

      2 Gigabyte 7950 WF3 (not crossfired when using BOINC, second card has a dummy plug instead of a display)

        • Re: Problems with OpenCL-App from Milkyway@home
          arsenm

          robbstark wrote:

           

          • Some tasks are not ending or send to CPU instead.

          Nothing will run on the CPU. After there is a problem from the driver the application will hang until killed though.

          • Re: Problems with OpenCL-App from Milkyway@home
            drallan

            Hi robbstart,

             

            Similar problems have been reported here by others. I have the same problems and have not been able to upgrade past the 8.92 drivers that came with the 7970 cards. The common point is multiple 7000 series cards, often with a headless card, mostly on Windows 7, A general summary:

             

            8.92 - works fine

            8.95 - all releases (up through most recent) frequent crashing, BSOD, and/or hanging video drivers.

            8.96 - all versions run fine no crash/hang. but - headless GPU's clock is stuck at 500MHz and cannot be adjusted.

            8.97 - (recent unofficial release) same as 8.96, runs OK, headless GPU clock still stuck at 500MHz.

             

            You said you use a VGA plug for one GPU. It is possible that the 8.96/8.97 500MHz clock issue will not happen when  using a plug, you might try one of the 8.96 drivers. They are often released on the popular gaming/over clocking sites.

             

            Please post anything you find interesting.

             

            drallan