The Matrix Market

Home Search Browse Resources

FIDAP019: Matrices generated by the FIDAP Package

from set FIDAP, from the SPARSKIT Collection

[Download] [Visualizations] [Matrix Statistics] [Set Information]


Download as

Help: My browser can't read the compressed data files. What now?


Visualizations

Click on image to get an enlarged version. Click on label to get an explanation.

Structure Plot City Plot
structure plot city plot


Matrix Statistics

Click on label to get an explanation.

Size Type
12005 x 12005, 259863 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
259561 12005 123929 123627 135242
Column Data Row Data
Average nonzeros per column : 22
Standard deviation : 12

indexnonzeros
longest261 50
shortest26 1

Average nonzeros per row : 22
Standard deviation : 12

indexnonzeros
longest261 50
shortest27 1

Bandwidths Profile Storage
lower170 upper170
average |i-j|80 std.dev.55
minmaxave.std.dev.
lower bandwidth0 169 1.2e+02 48
upper bandwidth0 169 1.2e+02 48

Nonsymmetric skyline storage 2835151

Heaviest diagonals
offset from main0 -80 80 -4 4 -76 76 -84 84 -160
nonzeros12005 11276 11276 10622 10622 10535 10535 10534 10534 5624
accumulated percent 4.63 8.9713.3117.4121.5025.5629.6233.6737.7339.90

Top 10 out of 185 nonvoid diagonals.
Conditioning
Frobenius norm3.3e+08 condition number (est.)1.34e+13
2-norm (est.)5.1e+07 diagonal dominanceno


Set Information

Set FIDAP
Source: Isaac Hasbani (Fluid Dynamics International) Barry Rackner (Minnesota Supercomputer Center)
Discipline:Finite element modeling


The Matrix Market is a service of the Mathematical and Computational Sciences Division / Information Technology Laboratory / National Institute of Standards and Technology.

[ Home ] [ Search ] [ Browse ] [ Resources ]

Last change in this page: Wed Sep 22 13:34:01 US/Eastern 2004 [Comments: ]