0 Replies Latest reply on Jun 6, 2013 2:52 AM by hannes

    How does CodeXL GPU Profiling works under the hood?

    hannes

      I'm curious about how the gpu profiling is done in particular.

      The official site: http://developer.amd.com/tools-and-sdks/heterogeneous-computing/codexl/ only states:

       

      "AMD CodeXL also provides a GPU profiler that collects and visualizes GPU counter data, application trace, kernel occupancy and hotspots analysis for AMD APU and GPUs. The profiler gathers data from the OpenCL™ run-time and AMD Radeon™ GPUs during the execution of an OpenCL™ application."

       

      What profiling types are used in particular?

       

      Sampling?

      Event-based profiling with the help of something like clGetEventProfilingInfo ?

      Does CodeXL also instrument the program?

      If yes, how? Thorugh runtime instrumentation or runtime injection, ...?