The Matrix Market

Home Search Browse Resources

FIDAP026: 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
2163 x 2163, 93749 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
74195 1706 35555 36934 38570
Column Data Row Data
Average nonzeros per column : 34
Standard deviation : 24

indexnonzeros
longest2084 135
shortest1 6

Average nonzeros per row : 34
Standard deviation : 18

indexnonzeros
longest318 80
shortest2068 5

Bandwidths Profile Storage
lower209 upper2142
average |i-j|1.1e+02 std.dev.2.1e+02
minmaxave.std.dev.
lower bandwidth0 208 1.2e+02 52
upper bandwidth0 2141 1.5e+02 2.2e+02

Nonsymmetric skyline storage 575269

Heaviest diagonals
offset from main-3 3 0 2 -4 1 -2 -1 -5 4
nonzeros1728 1716 1706 1350 1326 1251 1246 1135 1055 1055
accumulated percent 2.33 4.64 6.94 8.7610.5512.2313.9115.4416.8718.29

Top 10 out of 1087 nonvoid diagonals.
Conditioning
Frobenius norm3.8e+02 condition number (est.)4.66e+18
2-norm (est.)82 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 13:34:02 US/Eastern 2004 [Comments: ]