5     cout<< " \nbenchsolver : performs a benchmark of all the solvers available in Eigen \n\n";  in bench_printhelp()
6     cout<< " MATRIX FOLDER : \n";  in bench_printhelp()
7 …cout<< " The matrices for the benchmark should be collected in a folder specified with an environm…  in bench_printhelp()
8     cout<< " The matrices are stored using the matrix market coordinate format \n";  in bench_printhelp()
9     cout<< " The matrix and associated right-hand side (rhs) files are named respectively \n";  in bench_printhelp()
10 …cout<< " as MatrixName.mtx and MatrixName_b.mtx. If the rhs does not exist, a random one is genera…  in bench_printhelp()
11     cout<< " If a matrix is SPD, the matrix should be named as MatrixName_SPD.mtx \n";  in bench_printhelp()
12     cout<< " If a true solution exists, it should be named as MatrixName_x.mtx; \n"     ;  in bench_printhelp()
13 … cout<< " it will be used to compute the norm of the error relative to the computed solutions\n\n";  in bench_printhelp()
14     cout<< " OPTIONS : \n";   in bench_printhelp()
15     cout<< " -h or --help \n    print this help and return\n\n";  in bench_printhelp()
16 …cout<< " -d matrixdir \n    Use matrixdir as the matrix folder instead of the one specified in the…  in bench_printhelp()
17     cout<< " -o outputfile.xml \n    Output the statistics to a xml file \n\n";  in bench_printhelp()
18     cout<< " --eps <RelErr> Sets the relative tolerance for iterative solvers (default 1e-08) \n\n";  in bench_printhelp()
19     cout<< " --maxits <MaxIts> Sets the maximum number of iterations (default 1000) \n\n";  in bench_printhelp()
80     cout << "\n Output written in " << statFile << " ...\n";  in main()