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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/compute/system.hpp>
- #include <boost/compute/algorithm/sort_by_key.hpp>
- #include <boost/compute/algorithm/is_sorted.hpp>
- #include <boost/compute/container/vector.hpp>
- #include <boost/compute/types/fundamental.hpp>
- #include "perf.hpp"
- int main(int argc, char *argv[])
- {
- using boost::compute::int_;
- using boost::compute::long_;
- 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_> host_keys(PERF_N);
- std::generate(host_keys.begin(), host_keys.end(), rand);
- std::vector<long_> host_values(PERF_N);
- std::copy(host_keys.begin(), host_keys.end(), host_values.begin());
- // create vector on the device and copy the data
- boost::compute::vector<int_> device_keys(PERF_N, context);
- boost::compute::vector<long_> device_values(PERF_N, context);
- perf_timer t;
- for(size_t trial = 0; trial < PERF_TRIALS; trial++){
- boost::compute::copy(
- host_keys.begin(), host_keys.end(), device_keys.begin(), queue
- );
- boost::compute::copy(
- host_values.begin(), host_values.end(), device_values.begin(), queue
- );
- t.start();
- // sort vector
- boost::compute::sort_by_key(
- device_keys.begin(), device_keys.end(), device_values.begin(), queue
- );
- queue.finish();
- t.stop();
- }
- std::cout << "time: " << t.min_time() / 1e6 << " ms" << std::endl;
- // verify keys are sorted
- if(!boost::compute::is_sorted(device_keys.begin(), device_keys.end(), queue)){
- std::cout << "ERROR: is_sorted() returned false for the keys" << std::endl;
- return -1;
- }
- // verify values are sorted
- if(!boost::compute::is_sorted(device_values.begin(), device_values.end(), queue)){
- std::cout << "ERROR: is_sorted() returned false for the values" << std::endl;
- return -1;
- }
- return 0;
- }
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