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FIDAP014: 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
3251 x 3251, 66647 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
65747 2351 31698 31698 0
Column Data Row Data
Average nonzeros per column : 20
Standard deviation : 7.9

indexnonzeros
longest154 37
shortest2 6

Average nonzeros per row : 20
Standard deviation : 7.9

indexnonzeros
longest154 37
shortest2 6

Bandwidths Profile Storage
lower319 upper319
average |i-j|73 std.dev.83
minmaxave.std.dev.
lower bandwidth0 318 68 83
upper bandwidth0 318 68 83

Symmetric skyline storage requirement:224206

Heaviest diagonals
offset from main-2 2 0 -4 4 -6 6 -7 7 -5
nonzeros2710 2710 2351 2187 2187 1835 1835 1782 1782 1684
accumulated percent 4.12 8.2411.8215.1518.4721.2624.0526.7629.4832.04

Top 10 out of 601 nonvoid diagonals.
Conditioning
Frobenius norm1.1e+08 condition number (est.)2.62e+16
2-norm (est.)1.3e+07 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: ]