GEMAT11: Optimal power flow problems
Power flow in 2400 bus system in western US -- initial basis

from set GEMAT, from the Harwell-Boeing Collection

Initial basis for contrained nonlinear optimization problem represented by GEMAT1.

Download as

Compressed MatrixMarket format file: gemat11.mtx.gz (314965 bytes)
Compressed Harwell-Boeing format file: gemat11.rua.gz (248683 bytes)

Visualizations

Click on image to get an enlarged version. Click on label to get an explanation.

Structure Plot	City Plot

Matrix Statistics

Size	Type
4929 x 4929, 33185 entries	real unsymmetric
Nonzeros
total diagonal below diagonal above diagonal A-A' 33108 13 18673 14422 66146
Column Data	Row Data
Average nonzeros per column : 6.7 Standard deviation : 3.4 index nonzeros longest 19 28 shortest 4579 1	Average nonzeros per row : 6.7 Standard deviation : 3 index nonzeros longest 37 27 shortest 4929 1
Bandwidths	Profile Storage
lower 4899 upper 4561 average |i-j| 1.2e+03 std.dev. 8.2e+02	min max ave. std.dev. lower bandwidth 0 4898 1.4e+03 8.9e+02 upper bandwidth 0 4560 8.4e+02 1.2e+03 Nonsymmetric skyline storage 11047577
Heaviest diagonals
offset from main -31 -40 -98 -97 -42 -11 402 -601 -39 -30 nonzeros 19 18 17 17 17 17 17 16 16 16 accumulated percent 0.06 0.11 0.16 0.21 0.27 0.32 0.37 0.42 0.47 0.51 Top 10 out of 5998 nonvoid diagonals.
Conditioning
Frobenius norm 8.2e+02 condition number (est.) 3.74e+08 2-norm (est.) 6.9e+02 diagonal dominance no

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Last change in this page: Wed Sep 22 13:33:39 US/Eastern 2004 [Comments: ]