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UTM3060: 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


Matrix Statistics

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Size Type
3060 x 3060, 42211 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
42211 3060 19612 19539 57760
Column Data Row Data
Average nonzeros per column : 14
Standard deviation : 6.1

indexnonzeros
longest230 20
shortest46 1

Average nonzeros per row : 14
Standard deviation : 6.4

indexnonzeros
longest806 29
shortest1 1

Bandwidths Profile Storage
lower255 upper258
average |i-j|65 std.dev.80
minmaxave.std.dev.
lower bandwidth0 254 1.5e+02 53
upper bandwidth0 257 1.5e+02 54

Nonsymmetric skyline storage 933866

Heaviest diagonals
offset from main0 170 -170 -1 -5 5 1 -2 2 7
nonzeros3060 2712 2648 2584 2351 2285 2145 2072 1661 1557
accumulated percent 7.2513.6719.9526.0731.6437.0542.1347.0450.9854.67

Top 10 out of 72 nonvoid diagonals.
Conditioning
Frobenius norm55 condition number (est.)3.94e+07
2-norm (est.)2.6 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: ]