88 lines
3.2 KiB
C++
88 lines
3.2 KiB
C++
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#include <bench/spbench/spbenchsolver.h>
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void bench_printhelp()
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{
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cout<< " \nbenchsolver : performs a benchmark of all the solvers available in Eigen \n\n";
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cout<< " MATRIX FOLDER : \n";
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cout<< " The matrices for the benchmark should be collected in a folder specified with an environment variable EIGEN_MATRIXDIR \n";
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cout<< " The matrices are stored using the matrix market coordinate format \n";
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cout<< " The matrix and associated right-hand side (rhs) files are named respectively \n";
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cout<< " as MatrixName.mtx and MatrixName_b.mtx. If the rhs does not exist, a random one is generated. \n";
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cout<< " If a matrix is SPD, the matrix should be named as MatrixName_SPD.mtx \n";
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cout<< " If a true solution exists, it should be named as MatrixName_x.mtx; \n" ;
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cout<< " it will be used to compute the norm of the error relative to the computed solutions\n\n";
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cout<< " OPTIONS : \n";
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cout<< " -h or --help \n print this help and return\n\n";
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cout<< " -d matrixdir \n Use matrixdir as the matrix folder instead of the one specified in the environment variable EIGEN_MATRIXDIR\n\n";
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cout<< " -o outputfile.xml \n Output the statistics to a xml file \n\n";
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cout<< " --eps <RelErr> Sets the relative tolerance for iterative solvers (default 1e-08) \n\n";
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cout<< " --maxits <MaxIts> Sets the maximum number of iterations (default 1000) \n\n";
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}
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int main(int argc, char ** args)
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{
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bool help = ( get_options(argc, args, "-h") || get_options(argc, args, "--help") );
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if(help) {
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bench_printhelp();
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return 0;
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}
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// Get the location of the test matrices
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string matrix_dir;
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if (!get_options(argc, args, "-d", &matrix_dir))
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{
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if(getenv("EIGEN_MATRIXDIR") == NULL){
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std::cerr << "Please, specify the location of the matrices with -d mat_folder or the environment variable EIGEN_MATRIXDIR \n";
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std::cerr << " Run with --help to see the list of all the available options \n";
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return -1;
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}
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matrix_dir = getenv("EIGEN_MATRIXDIR");
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}
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std::ofstream statbuf;
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string statFile ;
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// Get the file to write the statistics
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bool statFileExists = get_options(argc, args, "-o", &statFile);
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if(statFileExists)
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{
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statbuf.open(statFile.c_str(), std::ios::out);
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if(statbuf.good()){
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statFileExists = true;
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printStatheader(statbuf);
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statbuf.close();
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}
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else
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std::cerr << "Unable to open the provided file for writing... \n";
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}
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// Get the maximum number of iterations and the tolerance
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int maxiters = 1000;
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double tol = 1e-08;
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string inval;
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if (get_options(argc, args, "--eps", &inval))
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tol = atof(inval.c_str());
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if(get_options(argc, args, "--maxits", &inval))
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maxiters = atoi(inval.c_str());
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string current_dir;
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// Test the real-arithmetics matrices
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Browse_Matrices<double>(matrix_dir, statFileExists, statFile,maxiters, tol);
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// Test the complex-arithmetics matrices
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Browse_Matrices<std::complex<double> >(matrix_dir, statFileExists, statFile, maxiters, tol);
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if(statFileExists)
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{
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statbuf.open(statFile.c_str(), std::ios::app);
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statbuf << "</BENCH> \n";
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cout << "\n Output written in " << statFile << " ...\n";
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statbuf.close();
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}
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return 0;
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}
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