wuk_cupti_wrapper

This library provides an simple API to use CUPTI (the CUDA Profiling Tools Interface). The code is mainly modified from the cupti sample range_profiling.

Example Usage

For more detials, please refer to concurrent_profiling sample and the header.

auto reset = [&] {
  workload0.reset();
  workload1.reset();
};
auto run = [&] {
  workload0.run_async();
  workload1.run_async();
  workload0.sync();
  workload1.sync();
};
do {
  // https://docs.nvidia.com/cupti/main/main.html#metrics-mapping-table
  std::vector<std::string> metricNames{"sm__cycles_elapsed.sum",
                                       "sm__cycles_active.sum"};
  wuk::CuProfiler p(metricNames);
  p.ProfileKernels("range_name", reset, run);
  std::string res = wuk::CuProfiler::res_to_json(p.MetricValues());
  std::fprintf(stdout, "%s", res.c_str());
} while (0);

The output is a json.

[{"Metrics":{"sm__cycles_active.sum":2210120.000000,"sm__cycles_elapsed.sum":1322041456.000000},"RangeName":"range_name","RangeIndex":0}]

Build from Source

rm -rf $HOME/build
cmake -B $HOME/build .
cmake --build $HOME/build
cmake --build $HOME/build -t test
cat $HOME/build/Testing/Temporary/LastTest.log

See also

• cupti_profiler