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BCSPWR02: Power network patterns
Small test power system -- WSCC

from set BCSPWR, from the Harwell-Boeing Collection

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Visualizations

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Structure Plot
structure plot


Matrix Statistics

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Size Type
49 x 49, 108 entries pattern symmetric indefinite
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
167 49 59 59 0
Column Data Row Data
Average nonzeros per column : 3.4
Standard deviation : 1.4

indexnonzeros
longest23 7
shortest1 2

Average nonzeros per row : 3.4
Standard deviation : 1.4

indexnonzeros
longest23 7
shortest1 2

Bandwidths Profile Storage
lower35 upper35
average |i-j|6.4 std.dev.9.2
minmaxave.std.dev.
lower bandwidth1 35 8.7 10
upper bandwidth1 35 8.7 10

Symmetric skyline storage requirement:426

Heaviest diagonals
offset from main0 -1 1 -2 2 -27 -3 3 27 -9
nonzeros49 15 15 8 8 5 5 5 5 3
accumulated percent29.3438.3247.3152.1056.8959.8862.8765.8768.8670.66

Top 10 out of 47 nonvoid diagonals.
Conditioning
Pattern matrix. No conditioning information.


Set Information

Set BCSPWR
Source: Collected by B. Dembart and J. Lewis, Boeing Computer Services, Seattle, WA, USA
Discipline:Power networks
Accession:Summer 1981


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