1 //---------------------------------------------------------------------------//
2 // Copyright (c) 2014 Roshan <thisisroshansmail@gmail.com>
3 //
4 // Distributed under the Boost Software License, Version 1.0
5 // See accompanying file LICENSE_1_0.txt or copy at
6 // http://www.boost.org/LICENSE_1_0.txt
7 //
8 // See http://boostorg.github.com/compute for more information.
9 //---------------------------------------------------------------------------//
10
11 #include <algorithm>
12 #include <iostream>
13 #include <numeric>
14 #include <vector>
15
16 #include <boost/compute/system.hpp>
17 #include <boost/compute/algorithm/includes.hpp>
18 #include <boost/compute/container/vector.hpp>
19
20 #include "perf.hpp"
21
rand_int()22 int rand_int()
23 {
24 return static_cast<int>((rand() / double(RAND_MAX)) * 25.0);
25 }
26
main(int argc,char * argv[])27 int main(int argc, char *argv[])
28 {
29 perf_parse_args(argc, argv);
30 std::cout << "size: " << PERF_N << std::endl;
31
32 // setup context and queue for the default device
33 boost::compute::device device = boost::compute::system::default_device();
34 boost::compute::context context(device);
35 boost::compute::command_queue queue(context, device);
36 std::cout << "device: " << device.name() << std::endl;
37
38 // create vectors of random numbers on the host
39 std::vector<int> host_vector(PERF_N);
40 std::generate(host_vector.begin(), host_vector.end(), rand_int);
41 std::sort(host_vector.begin(), host_vector.end());
42
43 // create vectors on the device and copy the data
44 boost::compute::vector<int> device_vector(PERF_N, context);
45 boost::compute::copy(
46 host_vector.begin(), host_vector.end(), device_vector.begin(), queue
47 );
48
49 boost::compute::vector<int> device_vector2(PERF_N, context);
50 boost::compute::copy(
51 host_vector.begin(), host_vector.end(), device_vector2.begin(), queue
52 );
53
54 perf_timer t;
55 for(size_t trial = 0; trial < PERF_TRIALS; trial++){
56 t.start();
57 boost::compute::includes(
58 device_vector.begin(), device_vector.end(),
59 device_vector2.begin(), device_vector2.end(),
60 queue
61 );
62 queue.finish();
63 t.stop();
64 }
65 std::cout << "time: " << t.min_time() / 1e6 << " ms" << std::endl;
66
67 return 0;
68 }
69