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FIDAP036: Matrices generated by the FIDAP Package

from set FIDAP, from the SPARSKIT Collection

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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
3079 x 3079, 53851 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
53107 2575 25185 25347 480
Column Data Row Data
Average nonzeros per column : 17
Standard deviation : 7.4

indexnonzeros
longest237 37
shortest2 6

Average nonzeros per row : 17
Standard deviation : 7.4

indexnonzeros
longest237 37
shortest29 4

Bandwidths Profile Storage
lower165 upper165
average |i-j|59 std.dev.54
minmaxave.std.dev.
lower bandwidth0 164 71 56
upper bandwidth0 164 71 56

Nonsymmetric skyline storage 437041

Heaviest diagonals
offset from main0 4 -4 -11 11 -15 15 -8 8 -7
nonzeros2575 2123 2110 1077 1077 1064 1064 927 927 917
accumulated percent 4.85 8.8512.8214.8516.8818.8820.8822.6324.3726.10

Top 10 out of 303 nonvoid diagonals.
Conditioning
Frobenius norm3.2e+03 condition number (est.)2.17e+06
2-norm (est.)2.6e+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 13:34:02 US/Eastern 2004 [Comments: ]