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whan01's avatar
whan01
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6 years ago
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Running HARP example design returns error value -54.

I modify the host code of example design. The original part in launching the first kernel is status = clEnqueueNDRangeKernel(queue, kernel, 1, NULL, gsize, lsize, 0, NULL, NULL) I modify this pa...
  • HRZ's avatar
    HRZ
    6 years ago

    Is there any reqd_work_group_size or max_work_group_size used in the kernel?

HRZ's avatar
HRZ
Icon for Frequent Contributor rankFrequent Contributor
6 years ago

Is there any reqd_work_group_size or max_work_group_size used in the kernel?

  • whan01's avatar
    whan01
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    6 years ago

    You remind me. There's neither reqd_work_group_size nor max_work_group_size, but at the head of each kernel function there's a declaration __attribute__((task)) which implicitly indicates the max work group dimension is 0. The max group work items is 1. So here's problem. Thanks!

    • HRZ's avatar
      HRZ
      Icon for Frequent Contributor rankFrequent Contributor
      6 years ago

      So the kernel is not even NDRange. 😅

      Be careful that just removing that attribute will not convert the kernel to NDRange; you will need to rewrite the kernel and replace the loops in it with get_global_id()/get_local_id().

    • whan01's avatar
      whan01
      Icon for New Contributor rankNew Contributor
      6 years ago

      Thanks for the further reminder. I'm new to HARP2 and OpenCL and maybe I need to go back to the programming manual.