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
|
#include <thrust/device_vector.h>
#include <thrust/host_vector.h>
#include <iostream>
int main()
{
// H has storage for 4 integers
thrust::host_vector<int> H(4);
// initialize individual elements
H[0] = 14;
H[1] = 20;
H[2] = 38;
H[3] = 46;
// H.size() returns the size of vector H
std::cout << "H has size " << H.size() << std::endl;
// print contents of H
for (size_t i = 0; i < H.size(); i++)
{
std::cout << "H[" << i << "] = " << H[i] << std::endl;
}
// resize H
H.resize(2);
std::cout << "H now has size " << H.size() << std::endl;
// Copy host_vector H to device_vector D
thrust::device_vector<int> D = H;
// elements of D can be modified
D[0] = 99;
D[1] = 88;
// print contents of D
for (size_t i = 0; i < D.size(); i++)
{
std::cout << "D[" << i << "] = " << D[i] << std::endl;
}
// H and D are automatically deleted when the function returns
return 0;
}
|
