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LNSP 511: Fluid flow modeling

from set LNS, from the Harwell-Boeing Collection

[Download] [Visualizations] [Matrix Statistics] [Set Information]


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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 ] 340905 bytes


Matrix Statistics

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Size Type
511 x 511, 2796 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
2796 422 1366 1008 2802
Column Data Row Data
Average nonzeros per column : 5.5
Standard deviation : 3.2

indexnonzeros
longest110 13
shortest2 1

Average nonzeros per row : 5.5
Standard deviation : 3.4

indexnonzeros
longest57 11
shortest1 1

Bandwidths Profile Storage
lower58 upper51
average |i-j|18 std.dev.22
minmaxave.std.dev.
lower bandwidth0 57 30 24
upper bandwidth0 50 29 23

Nonsymmetric skyline storage 29729

Heaviest diagonals
offset from main0 50 -50 5 -5 -2 -4 4 -48 -52
nonzeros422 275 273 264 240 170 122 89 82 81
accumulated percent15.0924.9334.6944.1352.7258.8063.1666.3469.2872.17

Top 10 out of 50 nonvoid diagonals.
Conditioning
Frobenius norm1.1e+11 condition number (est.)6.4e+15
2-norm (est.)4.2e+10 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: ]