1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
//---------------------------------------------------------------------------//
// 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 <iostream>
#include <vector>
#include <boost/spirit/include/karma.hpp>
#include <boost/compute/system.hpp>
#include <boost/compute/algorithm/sort.hpp>
namespace compute = boost::compute;
namespace karma = boost::spirit::karma;
int rand_int()
{
return rand() % 100;
}
// this example demonstrates how to sort a std::vector of ints on the GPU
int main()
{
// get default device and setup context
compute::device gpu = compute::system::default_device();
compute::context context(gpu);
compute::command_queue queue(context, gpu);
std::cout << "device: " << gpu.name() << std::endl;
// create vector of random values on the host
std::vector<int> vector(8);
std::generate(vector.begin(), vector.end(), rand_int);
// print input vector
std::cout << "input: [ "
<< karma::format(karma::int_ % ", ", vector)
<< " ]"
<< std::endl;
// sort vector
compute::sort(vector.begin(), vector.end(), queue);
// print sorted vector
std::cout << "output: [ "
<< karma::format(karma::int_ % ", ", vector)
<< " ]"
<< std::endl;
return 0;
}
|
