performance/graph/pseudo_peripheral.cu

#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;
}

1	#include <cusp/csr_matrix.h>
2	#include <cusp/print.h>
3
4	#include <cusp/gallery/poisson.h>
5	#include <cusp/graph/pseudo_peripheral.h>
6	#include <cusp/io/matrix_market.h>
7
8	#include "../timer.h"
9
10	template<typename MemorySpace, typename MatrixType>
11	void PSEUDO(const MatrixType& G)
12	{
13	typedef typename MatrixType::index_type IndexType;
14	typedef cusp::csr_matrix<IndexType,IndexType,MemorySpace> BFSType;
15	typedef cusp::array1d<IndexType,MemorySpace> Array;
16
17	BFSType G_bfs(G);
18	std::cout << " pseudo-peripheral vertex : " << cusp::graph::pseudo_peripheral_vertex(G_bfs) << std::endl;
19	}
20
21	int main(int argc, char*argv[])
22	{
23	srand(time(NULL));
24
25	typedef int IndexType;
26	typedef float ValueType;
27	typedef cusp::device_memory MemorySpace;
28
29	cusp::csr_matrix<IndexType, ValueType, MemorySpace> A;
30	size_t size = 1024;
31
32	if (argc == 1)
33	{
34	// no input file was specified, generate an example
35	std::cout << "Generated matrix (poisson5pt) ";
36	cusp::gallery::poisson5pt(A, size, size);
37	}
38	else if (argc == 2)
39	{
40	// an input file was specified, read it from disk
41	cusp::io::read_matrix_market_file(A, argv[1]);
42	std::cout << "Read matrix (" << argv[1] << ") ";
43	}
44
45	std::cout << "with shape (" << A.num_rows << "," << A.num_cols << ") and "
46	<< A.num_entries << " entries" << "\n\n";
47
48	std::cout << " Device ";
49	PSEUDO<cusp::device_memory>(A);
50
51	std::cout << " Host ";
52	PSEUDO<cusp::host_memory>(A);
53
54	return EXIT_SUCCESS;
55	}
56