/[escript]/trunk/cusplibrary/performance/graph/pseudo_peripheral.cu
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Contents of /trunk/cusplibrary/performance/graph/pseudo_peripheral.cu

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Revision 5148 - (show annotations)
Mon Sep 15 01:25:23 2014 UTC (6 years, 4 months ago) by caltinay
File size: 1536 byte(s)
Merging ripley diagonal storage + CUDA support into trunk.
Options file version has been incremented due to new options
'cuda' and 'nvccflags'.

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

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