1 #include <bench/spbench/spbenchsolver.h>
2
bench_printhelp()3 void bench_printhelp()
4 {
5 cout<< " \nbenchsolver : performs a benchmark of all the solvers available in Eigen \n\n";
6 cout<< " MATRIX FOLDER : \n";
7 cout<< " The matrices for the benchmark should be collected in a folder specified with an environment variable EIGEN_MATRIXDIR \n";
8 cout<< " This folder should contain the subfolders real/ and complex/ : \n";
9 cout<< " The matrices are stored using the matrix market coordinate format \n";
10 cout<< " The matrix and associated right-hand side (rhs) files are named respectively \n";
11 cout<< " as MatrixName.mtx and MatrixName_b.mtx. If the rhs does not exist, a random one is generated. \n";
12 cout<< " If a matrix is SPD, the matrix should be named as MatrixName_SPD.mtx \n";
13 cout<< " If a true solution exists, it should be named as MatrixName_x.mtx; \n" ;
14 cout<< " it will be used to compute the norm of the error relative to the computed solutions\n\n";
15 cout<< " OPTIONS : \n";
16 cout<< " -h or --help \n print this help and return\n\n";
17 cout<< " -d matrixdir \n Use matrixdir as the matrix folder instead of the one specified in the environment variable EIGEN_MATRIXDIR\n\n";
18 cout<< " -o outputfile.html \n Output the statistics to a html file \n\n";
19 cout<< " --eps <RelErr> Sets the relative tolerance for iterative solvers (default 1e-08) \n\n";
20 cout<< " --maxits <MaxIts> Sets the maximum number of iterations (default 1000) \n\n";
21
22 }
main(int argc,char ** args)23 int main(int argc, char ** args)
24 {
25
26 bool help = ( get_options(argc, args, "-h") || get_options(argc, args, "--help") );
27 if(help) {
28 bench_printhelp();
29 return 0;
30 }
31
32 // Get the location of the test matrices
33 string matrix_dir;
34 if (!get_options(argc, args, "-d", &matrix_dir))
35 {
36 if(getenv("EIGEN_MATRIXDIR") == NULL){
37 std::cerr << "Please, specify the location of the matrices with -d mat_folder or the environment variable EIGEN_MATRIXDIR \n";
38 std::cerr << " Run with --help to see the list of all the available options \n";
39 return -1;
40 }
41 matrix_dir = getenv("EIGEN_MATRIXDIR");
42 }
43
44 std::ofstream statbuf;
45 string statFile ;
46
47 // Get the file to write the statistics
48 bool statFileExists = get_options(argc, args, "-o", &statFile);
49 if(statFileExists)
50 {
51 statbuf.open(statFile.c_str(), std::ios::out);
52 if(statbuf.good()){
53 statFileExists = true;
54 printStatheader(statbuf);
55 statbuf.close();
56 }
57 else
58 std::cerr << "Unable to open the provided file for writting... \n";
59 }
60
61 // Get the maximum number of iterations and the tolerance
62 int maxiters = 1000;
63 double tol = 1e-08;
64 string inval;
65 if (get_options(argc, args, "--eps", &inval))
66 tol = atof(inval.c_str());
67 if(get_options(argc, args, "--maxits", &inval))
68 maxiters = atoi(inval.c_str());
69
70 string current_dir;
71 // Test the matrices in %EIGEN_MATRIXDIR/real
72 current_dir = matrix_dir + "/real";
73 Browse_Matrices<double>(current_dir, statFileExists, statFile,maxiters, tol);
74
75 // Test the matrices in %EIGEN_MATRIXDIR/complex
76 current_dir = matrix_dir + "/complex";
77 Browse_Matrices<std::complex<double> >(current_dir, statFileExists, statFile, maxiters, tol);
78
79 if(statFileExists)
80 {
81 statbuf.open(statFile.c_str(), std::ios::app);
82 statbuf << "</TABLE> \n";
83 cout << "\n Output written in " << statFile << " ...\n";
84 statbuf.close();
85 }
86
87 return 0;
88 }
89
90
91