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- //---------------------------------------------------------------------------//
- // Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@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/timer/timer.hpp>
- #include <boost/compute/system.hpp>
- #include <boost/compute/command_queue.hpp>
- #include <boost/compute/algorithm/sort.hpp>
- #include <boost/compute/container/vector.hpp>
- #include "perf.hpp"
- int main(int argc, char *argv[])
- {
- perf_parse_args(argc, argv);
- std::cout << "size: " << PERF_N << std::endl;
- // setup context and queue for the default device
- boost::compute::device device = boost::compute::system::default_device();
- boost::compute::context context(device);
- boost::compute::command_queue queue(context, device);
- std::cout << "device: " << device.name() << std::endl;
- // create vector of random numbers on the host
- std::vector<int> random_vector(PERF_N);
- std::generate(random_vector.begin(), random_vector.end(), rand);
- // create input vector for gpu
- std::vector<int> gpu_vector = random_vector;
- // sort vector on gpu
- boost::timer::cpu_timer t;
- boost::compute::sort(
- gpu_vector.begin(), gpu_vector.end(), queue
- );
- queue.finish();
- std::cout << "time: " << t.elapsed().wall / 1e6 << " ms" << std::endl;
- // create input vector for host
- std::vector<int> host_vector = random_vector;
- // sort vector on host
- t.start();
- std::sort(host_vector.begin(), host_vector.end());
- std::cout << "host time: " << t.elapsed().wall / 1e6 << " ms" << std::endl;
- // ensure that both sorted vectors are equal
- if(!std::equal(gpu_vector.begin(), gpu_vector.end(), host_vector.begin())){
- std::cerr << "ERROR: sorted vectors not the same" << std::endl;
- return -1;
- }
- return 0;
- }
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