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fvn_sparse/UMFPACK/Demo/umf4hb64.out 6.24 KB
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422234dc3   daniau   git-svn-id: https... 
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   Matrix key: WEST0067                      
  UMFPACK V5.1.0 (May 31, 2007), Control:
      Matrix entry defined as: double
      Int (generic integer) defined as: UF_long
  
      0: print level: 2
      1: dense row parameter:    0.2
          "dense" rows have    > max (16, (0.2)*16*sqrt(n_col) entries)
      2: dense column parameter: 0.2
          "dense" columns have > max (16, (0.2)*16*sqrt(n_row) entries)
      3: pivot tolerance: 0.1
      4: block size for dense matrix kernels: 32
      5: strategy: 0 (auto)
      6: initial allocation ratio: 0.7
      7: max iterative refinement steps: 2
      12: 2-by-2 pivot tolerance: 0.01
      13: Q fixed during numerical factorization: 0 (auto)
      14: AMD dense row/col parameter:    10
         "dense" rows/columns have > max (16, (10)*sqrt(n)) entries
          Only used if the AMD ordering is used.
      15: diagonal pivot tolerance: 0.001
          Only used if diagonal pivoting is attempted.
      16: scaling: 1 (divide each row by sum of abs. values in each row)
      17: frontal matrix allocation ratio: 0.5
      18: drop tolerance: 0
      19: AMD and COLAMD aggressive absorption: 1 (yes)
  
      The following options can only be changed at compile-time:
      8: BLAS library used:  Fortran BLAS.  size of BLAS integer: 4
      9: compiled for ANSI C
      10: CPU timer is POSIX times ( ) routine.
      11: compiled for normal operation (debugging disabled)
      computer/operating system: Linux
      size of int: 4 UF_long: 8 Int: 8 pointer: 8 double: 8 Entry: 8 (in bytes)
  
  symbolic analysis:
     status:     0.
     time:      0.00E+00 (sec)
     estimates (upper bound) for numeric LU:
     size of LU:          0.02 (MB)
     memory needed:       0.08 (MB)
     flop count:      0.14E+05
     nnz (L):             542.
     nnz (U):             902.
  numeric factorization:
     status:     0.
     time:      0.00E+00
     actual numeric LU statistics:
     size of LU:          0.01 (MB)
     memory needed:       0.06 (MB)
     flop count:      0.25E+04
     nnz (L):             323.
     nnz (U):             339.
  UMFPACK V5.1.0 (May 31, 2007), Info:
      matrix entry defined as:          double
      Int (generic integer) defined as: UF_long
      BLAS library used: Fortran BLAS.  size of BLAS integer: 4
      MATLAB:                           no.
      CPU timer:                        POSIX times ( ) routine.
      number of rows in matrix A:       67
      number of columns in matrix A:    67
      entries in matrix A:              294
      memory usage reported in:         16-byte Units
      size of int:                      4 bytes
      size of UF_long:                  8 bytes
      size of pointer:                  8 bytes
      size of numerical entry:          8 bytes
  
      strategy used:                    unsymmetric
      ordering used:                    colamd on A
      modify Q during factorization:    yes
      prefer diagonal pivoting:         no
      pivots with zero Markowitz cost:               1
      submatrix S after removing zero-cost pivots:
          number of "dense" rows:                    0
          number of "dense" columns:                 0
          number of empty rows:                      0
          number of empty columns                    0
          submatrix S not square or diagonal not preserved
      symbolic factorization defragmentations:       1
      symbolic memory usage (Units):                 1595
      symbolic memory usage (MBytes):                0.0
      Symbolic size (Units):                         241
      Symbolic size (MBytes):                        0
      symbolic factorization CPU time (sec):         0.00
      symbolic factorization wallclock time(sec):    0.00
  
      matrix scaled: yes (divided each row by sum of abs values in each row)
      minimum sum (abs (rows of A)):              1.00000e+00
      maximum sum (abs (rows of A)):              6.59006e+00
  
      symbolic/numeric factorization:      upper bound               actual      %
      variable-sized part of Numeric object:
          initial size (Units)                    1517                 1448    95%
          peak size (Units)                       3917                 2423    62%
          final size (Units)                       981                  435    44%
      Numeric final size (Units)                  1381                  802    58%
      Numeric final size (MBytes)                  0.0                  0.0    58%
      peak memory usage (Units)                   5133                 3639    71%
      peak memory usage (MBytes)                   0.1                  0.1    71%
      numeric factorization flops          1.41920e+04          2.50100e+03    18%
      nz in L (incl diagonal)                      542                  323    60%
      nz in U (incl diagonal)                      902                  339    38%
      nz in L+U (incl diagonal)                   1377                  595    43%
      largest front (# entries)                    483                   80    17%
      largest # rows in front                       21                   10    48%
      largest # columns in front                    23                   11    48%
  
      initial allocation ratio used:                 0.7
      # of forced updates due to frontal growth:     0
      nz in L (incl diagonal), if none dropped       323
      nz in U (incl diagonal), if none dropped       339
      number of small entries dropped                0
      nonzeros on diagonal of U:                     67
      min abs. value on diagonal of U:               2.74e-02
      max abs. value on diagonal of U:               2.28e+00
      estimate of reciprocal of condition number:    1.20e-02
      indices in compressed pattern:                 249
      numerical values stored in Numeric object:     605
      numeric factorization defragmentations:        1
      numeric factorization reallocations:           1
      costly numeric factorization reallocations:    0
      numeric factorization CPU time (sec):          0.00
      numeric factorization wallclock time (sec):    0.00
  
      solve flops:                                   1.19000e+03
      iterative refinement steps taken:              0
      iterative refinement steps attempted:          0
      solve CPU time (sec):                          0.00
      solve wall clock time (sec):                   0.00
  
      total symbolic + numeric + solve flops:        3.69100e+03
  
   norm (A*x-b):   3.10862447E-15
   norm (A*x-b):   2.13162821E-14
   norm (A*x-b):   2.13162821E-14