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FIDAPM13: 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
3549 x 3549, 71975 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
70994 2568 34213 34213 2
Column Data Row Data
Average nonzeros per column : 20
Standard deviation : 7.8

indexnonzeros
longest116 37
shortest2790 7

Average nonzeros per row : 20
Standard deviation : 7.8

indexnonzeros
longest116 37
shortest2790 7

Bandwidths Profile Storage
lower226 upper226
average |i-j|51 std.dev.59
minmaxave.std.dev.
lower bandwidth0 225 51 59
upper bandwidth0 225 51 59

Symmetric skyline storage requirement:361373

Heaviest diagonals
offset from main-2 2 0 -4 4 -6 6 -7 7 -5
nonzeros2954 2954 2568 2298 2298 1799 1799 1748 1748 1690
accumulated percent 4.16 8.3211.9415.1818.4120.9523.4825.9428.4130.79

Top 10 out of 443 nonvoid diagonals.
Conditioning
Frobenius norm32 condition number (est.)2.20e+06
2-norm (est.)4.6 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 13:34:03 US/Eastern 2004 [Comments: ]