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FIDAP012: 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
3973 x 3973, 80151 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
79017 2839 38089 38089 0
Column Data Row Data
Average nonzeros per column : 20
Standard deviation : 8

indexnonzeros
longest97 37
shortest3913 7

Average nonzeros per row : 20
Standard deviation : 8

indexnonzeros
longest97 37
shortest3913 7

Bandwidths Profile Storage
lower110 upper110
average |i-j|41 std.dev.41
minmaxave.std.dev.
lower bandwidth0 109 45 42
upper bandwidth0 109 45 42

Symmetric skyline storage requirement:181695

Heaviest diagonals
offset from main-2 2 0 -4 4 -6 6 -7 7 -5
nonzeros3460 3460 2839 2667 2667 2075 2075 2062 2062 1976
accumulated percent 4.38 8.7612.3515.7319.1021.7324.3526.9629.5732.07

Top 10 out of 209 nonvoid diagonals.
Conditioning
Frobenius norm1.8e+03 condition number (est.)2.16e+20
2-norm (est.)1.3e+02 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: ]