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FIDAP020: 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
2203 x 2203, 69579 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
67429 1603 32716 33110 3460
Column Data Row Data
Average nonzeros per column : 31
Standard deviation : 15

indexnonzeros
longest786 65
shortest26 6

Average nonzeros per row : 31
Standard deviation : 16

indexnonzeros
longest205 67
shortest25 6

Bandwidths Profile Storage
lower118 upper134
average |i-j|51 std.dev.36
minmaxave.std.dev.
lower bandwidth0 117 77 29
upper bandwidth0 133 78 30

Nonsymmetric skyline storage 338881

Heaviest diagonals
offset from main2 -2 -1 1 3 -3 0 4 -4 5
nonzeros1851 1850 1658 1658 1636 1617 1603 1274 1273 915
accumulated percent 2.75 5.49 7.9510.4112.8315.2317.6119.5021.3922.74

Top 10 out of 196 nonvoid diagonals.
Conditioning
Frobenius norm3.7 condition number (est.)5.89e+08
2-norm (est.)1.5 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: ]