8 Replies Latest reply on Feb 22, 2010 8:13 AM by jbreitbart

    Matrixmultiplication SDK Sample - Not correct for all input sizes?

    jbreitbart

      Hi all,

       

      I have just been playing around with the SDK sample I and get a strange result (see below). Could someone please run the sample with the same options and tell me if this is a bug in the SDK sample or a local problem?

      I am using the 2.01 SDK and a Radeon 5870 / Core i7.

      Here is my output:

       

      jbreitbart@nv280 16:37:44 /usr/local/ati-stream/samples/opencl/bin/x86_64

      $ ./MatrixMultiplication --device cpu -t -x 128 -y 192 -z 256 -e -q

      Executing kernel for 1 iterations

      -------------------------------------------

      KernelTime (ms) : 14.752

      GFlops achieved : 0.852965

       

      Failed

       

      jbreitbart@nv280 16:37:51 /usr/local/ati-stream/samples/opencl/bin/x86_64

      $ ./MatrixMultiplication --device gpu -t -x 128 -y 192 -z 256 -e -q

      Executing kernel for 1 iterations

      -------------------------------------------

      KernelTime (ms) : 0.081736

      GFlops achieved : 153.946

       

      Failed