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FIDAP013: 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
2568 x 2568, 75628 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
75628 2568 36530 36530 0
Column Data Row Data
Average nonzeros per column : 29
Standard deviation : 11

indexnonzeros
longest83 50
shortest2005 10

Average nonzeros per row : 29
Standard deviation : 11

indexnonzeros
longest83 50
shortest2005 10

Bandwidths Profile Storage
lower166 upper166
average |i-j|43 std.dev.44
minmaxave.std.dev.
lower bandwidth0 165 50 45
upper bandwidth0 165 50 45

Symmetric skyline storage requirement:129702

Heaviest diagonals
offset from main0 -1 1 -2 2 -3 3 -4 4 -5
nonzeros2568 2466 2466 2364 2364 2015 2015 1672 1672 1576
accumulated percent 3.40 6.66 9.9213.0416.1718.8321.5023.7125.9228.00

Top 10 out of 331 nonvoid diagonals.
Conditioning
Frobenius norm5.1e+10 condition number (est.)3.94e+15
2-norm (est.)1.3e+10 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: ]