text: //---------------------------------------------------------------------------//
  // Copyright (c) 2014 Roshan <thisisroshansmail@gmail.com>
  //
  // Distributed under the Boost Software License, Version 1.0
  // See accompanying file LICENSE_1_0.txt or copy at
  // http://www.boost.org/LICENSE_1_0.txt
  //
  // See http://boostorg.github.com/compute for more information.
  //---------------------------------------------------------------------------//
  
  #include <algorithm>
  #include <iostream>
  #include <vector>
  
  #include <boost/compute/system.hpp>
  #include <boost/compute/container/vector.hpp>
  #include <boost/compute/random/default_random_engine.hpp>
  #include <boost/compute/random/discrete_distribution.hpp>
  
  #include "perf.hpp"
  
  namespace compute = boost::compute;
  
  int main(int argc, char *argv[])
  {
      perf_parse_args(argc, argv);
      std::cout << "size: " << PERF_N << std::endl;
  
      compute::device device = compute::system::default_device();
      compute::context context(device);
      compute::command_queue queue(context, device);
  
      compute::vector<compute::uint_> vector(PERF_N, context);
  
      int weights[] = {1, 1};
  
      compute::default_random_engine rng(queue);
      compute::discrete_distribution<compute::uint_> dist(weights, weights+2);
  
      perf_timer t;
      t.start();
      dist.generate(vector.begin(), vector.end(), rng, queue);
      queue.finish();
      t.stop();
      std::cout << "time: " << t.min_time() / 1e6 << " ms" << std::endl;
  
      return 0;
  }
  