The Matrix Market

Home Search Browse Resources

FIDAPM03: 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
2532 x 2532, 50380 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
49669 1821 23924 23924 0
Column Data Row Data
Average nonzeros per column : 20
Standard deviation : 7.9

indexnonzeros
longest571 46
shortest3 7

Average nonzeros per row : 20
Standard deviation : 7.9

indexnonzeros
longest571 46
shortest3 7

Bandwidths Profile Storage
lower181 upper181
average |i-j|55 std.dev.61
minmaxave.std.dev.
lower bandwidth0 180 52 62
upper bandwidth0 180 52 62

Symmetric skyline storage requirement:135357

Heaviest diagonals
offset from main-2 2 0 -4 4 -5 5 -7 7 -3
nonzeros2086 2086 1821 1642 1642 1288 1288 1246 1246 1211
accumulated percent 4.20 8.4012.0715.3718.6821.2723.8626.3728.8831.32

Top 10 out of 359 nonvoid diagonals.
Conditioning
Frobenius norm39 condition number (est.)1.22e+04
2-norm (est.)3.2 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: ]