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FIDAP007: 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
1633 x 1633, 54487 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
46570 1633 22233 22704 15834
Column Data Row Data
Average nonzeros per column : 29
Standard deviation : 12

indexnonzeros
longest234 50
shortest3 6

Average nonzeros per row : 29
Standard deviation : 17

indexnonzeros
longest235 75
shortest1 6

Bandwidths Profile Storage
lower277 upper277
average |i-j|74 std.dev.74
minmaxave.std.dev.
lower bandwidth0 276 81 76
upper bandwidth0 276 81 76

Nonsymmetric skyline storage 262644

Heaviest diagonals
offset from main0 -3 3 1 -6 4 6 -2 -9 9
nonzeros1633 1443 1411 1102 1033 1024 1014 949 830 826
accumulated percent 3.51 6.61 9.6312.0014.2216.4218.6020.6322.4224.19

Top 10 out of 551 nonvoid diagonals.
Conditioning
Frobenius norm1.1e+10 condition number (est.)1.93e+11
2-norm (est.)1.9e+09 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: ]