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UTM1700A: Tokamak Matrices

from set TOKAMAK, from the SPARSKIT Collection

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Visualizations

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Structure Plot City Plot
structure plot city plot
3D Interactive City Plot

[ VRML Version 2, gzipped ] 677808 bytes


Matrix Statistics

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Size Type
1700 x 1700, 21313 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
21313 1700 9446 10167 28306
Column Data Row Data
Average nonzeros per column : 13
Standard deviation : 6.2

indexnonzeros
longest185 20
shortest51 1

Average nonzeros per row : 13
Standard deviation : 6.7

indexnonzeros
longest561 28
shortest1 1

Bandwidths Profile Storage
lower245 upper248
average |i-j|66 std.dev.81
minmaxave.std.dev.
lower bandwidth0 244 1.5e+02 61
upper bandwidth0 247 1.5e+02 61

Nonsymmetric skyline storage 495140

Heaviest diagonals
offset from main0 170 -170 -5 -1 5 1 -2 2 172
nonzeros1700 1442 1386 1294 1292 1286 1143 1036 898 790
accumulated percent 7.9814.7421.2527.3233.3839.4144.7849.6453.8557.56

Top 10 out of 68 nonvoid diagonals.
Conditioning
Frobenius norm41 condition number (est.)6.24e+06
2-norm (est.)2.3 diagonal dominanceno


Set Information

Set TOKAMAK
Source: Peter Brown (Lawrence Livermore National Lab)
Discipline:Nuclear physics (plasmas)


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Last change in this page: Wed Sep 22 13:34:04 US/Eastern 2004 [Comments: ]