1 Reply Latest reply on Jul 6, 2012 12:02 PM by binying

    Crash when using vector pointers as kernel arguments

    psamathos

      Hi,

       

      I have a kernel where I process blocks of 16 uchar/ushort and since OpenCL has a ushort16 type I thought it would be great to use those. However the kernel crashes, which I find odd since it works with Intel's OpenCL. It also works if I use vstore16/vload16, the memory is aligned on 4k-boundaries, it's only on the cpu. Using ushort8/uchar8 seems to work.

       

      Have I misunderstood something or is this a bug?

       

      Two simple kernels

       

      kernel void thisOneCrashes(global const uchar16* data1, global ushort16* data2)

      {

                data2[0] = (ushort16)(1);

      }

       

      kernel void thisOneDoesnt(global const uchar* data1, global ushort* data2)

      {

                vstore16((ushort16)(1), 0, data2);

      }

       

      regards

      Magnus Sjöstrand