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SHERMAN2: Oil reservoir simulation challenge matrices
Thermal simulation with steam injection (NX = NY = 6, NZ = 5, NC = 5 )

from set SHERMAN, 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
3D Interactive City Plot

[ VRML Version 2, gzipped ] 643744 bytes


Matrix Statistics

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Size Type
1080 x 1080, 23094 entries real unsymmetric
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
23094 1080 9960 12054 29152
Column Data Row Data
Average nonzeros per column : 21
Standard deviation : 6.2

indexnonzeros
longest347 34
shortest33 1

Average nonzeros per row : 21
Standard deviation : 12

indexnonzeros
longest331 42
shortest33 1

Bandwidths Profile Storage
lower222 upper222
average |i-j|75 std.dev.93
minmaxave.std.dev.
lower bandwidth1 222 1.4e+02 98
upper bandwidth1 222 1.8e+02 82

Nonsymmetric skyline storage 342584

Heaviest diagonals
offset from main0 2 1 6 3 216 -216 -1 36 4
nonzeros1080 810 774 764 754 694 670 654 632 630
accumulated percent 4.68 8.1811.5414.8418.1121.1124.0126.8529.5832.31

Top 10 out of 67 nonvoid diagonals.
Conditioning
Frobenius norm7e+09 condition number (est.)1.4e+12
2-norm (est.)2.4e+09 diagonal dominanceno


Set Information

Set SHERMAN
Source: Andy Sherman, Nolan and Associates, Houston, TX.
Discipline:Oil reservoir modeling
Accession:Autumn 1984


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Last change in this page: Wed Sep 22 13:33:54 US/Eastern 2004 [Comments: ]