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
|
#include <cusp/csr_matrix.h>
#include <cusp/print.h>
#include <cusp/gallery/poisson.h>
#include <cusp/graph/pseudo_peripheral.h>
#include <cusp/io/matrix_market.h>
#include "../timer.h"
template<typename MemorySpace, typename MatrixType>
void PSEUDO(const MatrixType& G)
{
typedef typename MatrixType::index_type IndexType;
typedef cusp::csr_matrix<IndexType,IndexType,MemorySpace> BFSType;
typedef cusp::array1d<IndexType,MemorySpace> Array;
BFSType G_bfs(G);
std::cout << " pseudo-peripheral vertex : " << cusp::graph::pseudo_peripheral_vertex(G_bfs) << std::endl;
}
int main(int argc, char*argv[])
{
srand(time(NULL));
typedef int IndexType;
typedef float ValueType;
typedef cusp::device_memory MemorySpace;
cusp::csr_matrix<IndexType, ValueType, MemorySpace> A;
size_t size = 1024;
if (argc == 1)
{
// no input file was specified, generate an example
std::cout << "Generated matrix (poisson5pt) ";
cusp::gallery::poisson5pt(A, size, size);
}
else if (argc == 2)
{
// an input file was specified, read it from disk
cusp::io::read_matrix_market_file(A, argv[1]);
std::cout << "Read matrix (" << argv[1] << ") ";
}
std::cout << "with shape (" << A.num_rows << "," << A.num_cols << ") and "
<< A.num_entries << " entries" << "\n\n";
std::cout << " Device ";
PSEUDO<cusp::device_memory>(A);
std::cout << " Host ";
PSEUDO<cusp::host_memory>(A);
return EXIT_SUCCESS;
}
|
