README.md

CUPTI CUDA Profiler

This library provides an API for collecting CUDA profiling metrics and events from within a CUDA application. Programmers specify what metrics and events they want, and start the profiler before calling a CUDA kernel. The library sets up the appropriate CUPTI callbacks, calculates the number of kernel passes required, gathers values for the specified metrics and events, and returns them to the programmer.

Example Usage:

  vector<string> event_names {
                              "active_warps",
                              "gst_inst_32bit",
                              "active_cycles"
                             };
  vector<string> metric_names {
                               "flop_count_dp",
                               "flop_count_sp",
                               "inst_executed"
                              };

  cupti_profiler::profiler profiler(event_names, metric_names);

  // Get #passes required to compute all metrics and events
  const int passes = profiler.get_passes();

  profiler.start();
  for(int i=0; i<passes; ++i) {
    call_kernel(data);
  }
  profiler.stop();

  profiler.print_event_values(std::cout);
  profiler.print_metric_values(std::cout);