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tde_m's avatar
tde_m
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Wall Clock Time on Device

Hello, is there a way in Intel FPGA OpenCL to get the wall clock time (in clock cycles) directly on the device? This could be useful, for example, to profile the occurrence of certain events. ...
  • tde_m's avatar
    tde_m
    Icon for Occasional Contributor rankOccasional Contributor
    6 years ago

    Hi Anil,

    thanks for your reply.
    As far as I know, OpenCL profiling events can be used to get timings at the "kernel level" (e.g. the entire kernel execution time).

    Instead, I was wondering if there is a way directly on device to get timing information (e.g. the number of clock cycles that passes between two events).

    Thanks

      • tde_m's avatar
        tde_m
        Icon for Occasional Contributor rankOccasional Contributor
        6 years ago

        Dear Anil,

        thanks for your reply, but it doesn't seem that Vtune can do what I was asking for.
        It seems that with vtune I can profile CPU/FPGA interaction (preview feature), similar to what I can do with OpenCL events.

        I was asking if there is the possibility to count clock cycles (or any other time units) directly on the device, pretty much like one takes the clock cycles (or the wall clock time) on the CPU.
        If this can be done with Vtune as well, can you please point me to the exact documentation?

        Thanks for your help,
        Tiziano