blob: a23c5ac3b8e9576f8383241e5f8a7c6a36324a05 (
plain)
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
57
|
//---------------------------------------------------------------------------//
// Copyright (c) 2015 Jakub Szuppe <j.szuppe@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 <algorithm>
#include <vector>
#include <bolt/cl/count.h>
#include <bolt/cl/copy.h>
#include <bolt/cl/device_vector.h>
#include "perf.hpp"
int rand_int()
{
return static_cast<int>((rand() / double(RAND_MAX)) * 25.0);
}
int main(int argc, char *argv[])
{
perf_parse_args(argc, argv);
std::cout << "size: " << PERF_N << std::endl;
bolt::cl::control ctrl = bolt::cl::control::getDefault();
::cl::Device device = ctrl.getDevice();
std::cout << "device: " << device.getInfo<CL_DEVICE_NAME>() << std::endl;
// create vector of random numbers on the host
std::vector<int> h_vec(PERF_N);
std::generate(h_vec.begin(), h_vec.end(), rand_int);
// create device vector
bolt::cl::device_vector<int> d_vec(PERF_N);
// transfer data to the device
bolt::cl::copy(h_vec.begin(), h_vec.end(), d_vec.begin());
size_t count = 0;
perf_timer t;
for(size_t trial = 0; trial < PERF_TRIALS; trial++){
t.start();
count = bolt::cl::count(ctrl, d_vec.begin(), d_vec.end(), 4);
t.stop();
}
std::cout << "time: " << t.min_time() / 1e6 << " ms" << std::endl;
std::cout << "count: " << count << std::endl;
return 0;
}
|
