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FIDAP021: Matrices generated by the FIDAP Package

from set FIDAP, from the SPARSKIT Collection

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


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Visualizations

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Structure Plot City Plot
structure plot city plot
3D Interactive City Plot

[ VRML Version 2, gzipped ] 544336 bytes


Matrix Statistics

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Size Type
656 x 656, 19142 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
18962 476 9243 9243 1058
Column Data Row Data
Average nonzeros per column : 29
Standard deviation : 15

indexnonzeros
longest149 62
shortest531 6

Average nonzeros per row : 29
Standard deviation : 15

indexnonzeros
longest149 62
shortest531 6

Bandwidths Profile Storage
lower168 upper168
average |i-j|35 std.dev.30
minmaxave.std.dev.
lower bandwidth0 167 55 31
upper bandwidth0 167 55 31

Symmetric skyline storage requirement:71336

Heaviest diagonals
offset from main-2 2 -1 1 0 -3 3 -4 4 -5
nonzeros530 530 506 506 476 459 459 350 350 251
accumulated percent 2.80 5.59 8.2610.9313.4415.8618.2820.1221.9723.29

Top 10 out of 307 nonvoid diagonals.
Conditioning
Frobenius norm2.2 condition number (est.)9.1e+08
2-norm (est.)0.51 diagonal dominanceno


Set Information

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


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