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FIDAP023: 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
1409 x 1409, 43481 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
42536 1008 20667 20861 3102
Column Data Row Data
Average nonzeros per column : 30
Standard deviation : 15

indexnonzeros
longest161 62
shortest54 6

Average nonzeros per row : 30
Standard deviation : 15

indexnonzeros
longest858 67
shortest1402 5

Bandwidths Profile Storage
lower198 upper203
average |i-j|39 std.dev.30
minmaxave.std.dev.
lower bandwidth0 197 60 28
upper bandwidth0 202 61 29

Nonsymmetric skyline storage 168559

Heaviest diagonals
offset from main-2 2 -1 1 -3 3 0 4 -4 -5
nonzeros1170 1170 1075 1069 1026 1023 1008 785 773 547
accumulated percent 2.75 5.50 8.0310.5412.9515.3617.7319.5721.3922.68

Top 10 out of 311 nonvoid diagonals.
Conditioning
Frobenius norm1.4e+06 condition number (est.)2.28e+13
2-norm (est.)2.7e+05 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: ]