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LNSP 131: Fluid flow modeling

from set LNS, from the Harwell-Boeing Collection

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Visualizations

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Structure Plot City Plot
structure plot city plot
Spectral Portrait 3D Interactive City Plot
spectral portrait

[ VRML Version 2, gzipped ] 67301 bytes


Matrix Statistics

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Size Type
131 x 131, 536 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
536 112 251 173 542
Column Data Row Data
Average nonzeros per column : 4.1
Standard deviation : 2.8

indexnonzeros
longest60 13
shortest2 1

Average nonzeros per row : 4.1
Standard deviation : 3.5

indexnonzeros
longest32 11
shortest1 1

Bandwidths Profile Storage
lower33 upper26
average |i-j|9.6 std.dev.10
minmaxave.std.dev.
lower bandwidth0 32 11 12
upper bandwidth0 25 10 11

Nonsymmetric skyline storage 2689

Heaviest diagonals
offset from main0 25 -25 5 -2 -4 -5 4 -23 -27
nonzeros112 45 43 39 35 32 30 19 17 16
accumulated percent20.9029.2937.3144.5951.1257.0962.6966.2369.4072.39

Top 10 out of 33 nonvoid diagonals.
Conditioning
Frobenius norm1.5e+10 condition number (est.)1.5e+15
2-norm (est.)9.8e+09 diagonal dominanceno


Set Information

Set LNS
Source: Ian Jones, Harwell Laboratory.
Discipline:Fluid flow modeling
Accession:Summer 1980


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Last change in this page: Wed Sep 22 13:33:43 US/Eastern 2004 [Comments: ]