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FIDAP027: 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


Matrix Statistics

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Size Type
974 x 974, 40736 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
37602 782 18090 18730 20220
Column Data Row Data
Average nonzeros per column : 39
Standard deviation : 27

indexnonzeros
longest228 205
shortest44 6

Average nonzeros per row : 39
Standard deviation : 23

indexnonzeros
longest203 92
shortest594 2

Bandwidths Profile Storage
lower116 upper137
average |i-j|47 std.dev.33
minmaxave.std.dev.
lower bandwidth0 115 71 27
upper bandwidth0 136 72 28

Nonsymmetric skyline storage 137917

Heaviest diagonals
offset from main0 -1 1 2 -2 -3 3 -4 4 48
nonzeros782 754 744 730 728 686 678 558 556 484
accumulated percent 2.08 4.08 6.06 8.00 9.9411.7713.5715.0516.5317.82

Top 10 out of 252 nonvoid diagonals.
Conditioning
Frobenius norm0.95 condition number (est.)1.75e+06
2-norm (est.)0.26 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 13:34:02 US/Eastern 2004 [Comments: ]