19 November 2024 4:51:15.198 PM SPARSEKIT_PRB06 FORTRAN90 version This program demonstrates the use of the SPARSKIT routines READMT and DINFO1 to read and report on a sparse matrix stored in a file in the format used by the Harwell-Boeing Sparse Matrix Collection or "HBSMC". * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * unsymmetric matrix of paul saylor - 14 by 17 2d grid may, 1983 * * Key = saylr1 , Type = rua * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Dimension N = 238 * * Number of nonzero elements = 1128 * * Average number of nonzero elements/Column = 4.7395 * * Standard deviation for above average = 0.4757 * * Nonzero elements in strict lower part = 445 * * Nonzero elements in strict upper part = 445 * * Nonzero elements in main diagonal = 238 * * Weight of longest column = 5 * * Weight of shortest column = 3 * * Weight of longest row = 5 * * Weight of shortest row = 3 * * Matching elements in symmetry = 1128 * * Relative Symmetry Match (symmetry=1) = 1.0000 * * Average distance of a(i,j) from diag. = 0.595E+01 * * Standard deviation for above average = 0.654E+01 * *-----------------------------------------------------------------* * Frobenius norm of A = 0.886E+09 * * Frobenius norm of symmetric part = 0.886E+09 * * Frobenius norm of nonsymmetric part = 0.155E+05 * * Maximum element in A = 0.306E+09 * * Percentage of weakly diagonally dominant rows = 0.744E+00 * * Percentage of weakly diagonally dominant columns = 0.761E+00 * *-----------------------------------------------------------------* * Lower bandwidth (max: i-j, a(i,j) /= 0) = 14 * * Upper bandwidth (max: j-i, a(i,j) /= 0) = 14 * * Maximum Bandwidth = 29 * * Average Bandwidth = 0.275E+02 * * Number of nonzeros in skyline storage = 6536 * * 90% of matrix is in the band of width = 27 * * 80% of matrix is in the band of width = 27 * * The total number of nonvoid diagonals is = 5 * * The 5 most important diagonals are (offsets) : * * 0 14 -14 1 -1 * * The accumulated percentages they represent are : * * 21.1 41.0 60.8 80.4 100.0 * *-----------------------------------------------------------------* * The matrix does not have a block structure * *-----------------------------------------------------------------* SPARSEKIT_PRB06 Normal end of execution. 19 November 2024 4:51:15.199 PM