ATI GPU

Forums › Cruncher's Corner

Anonymous
25 Nov 2009 13:39:29 UTC
Topic 13792
(moderation:
    )

    Quote:
    When ATI GPU will be supported???

    It is unlikely that we will ever put work into an ATI Stream application.

    We're looking into OpenCL on ATI, NVidia and Cell, but it may take some time. Currently the speed of our OpenCL Einstein@home App is rather disappointing. In addition before Mac OS 10.6.2 OpenCL on ATI was unusable due to a horribly buggy runtime compiler.

    BM

    Bernd Machenschalk
    Bernd Machenschalk
    Joined: 15 Oct 04
    Posts: 2,684
    Credit: 25,950,161
    RAC: 34,820

    ATI GPU

    26 Nov 2009 12:28:00 UTC
    Message 3719
    (moderation:
      )

      Quote:
      If, and when, the OpenCL GPU clients are released you will be pleased with the ATI GPUs - especially the HD48xx series and the new HD58xx series, which is 4x faster than it's predecessor. On MW and Collatz these cards are giving RACs in the order of 250K, so a lot of science is being done quickly and accurately (double precision with MW)


      The problem is not the speed of calculations, but the memory access pattern of the current (GW search) algorithm. It's so wild that on NVidia hundreds of threads are blocking each other. I don't think that ATI cards have a significantly different memory architecture than NVidia has, or that the compiler is more advanced so that it could unscramble that.

      BM

      BM

      Comment viewing options

      Select your preferred way to display the comments and click "Save settings" to activate your changes.

      Forums › Cruncher's Corner