WEST0156: Chemical engineering plant models
Simple chemical plant model

from set CHEMWEST, from the Harwell-Boeing Collection

Download as

Compressed MatrixMarket format file: west0156.mtx.gz (2328 bytes)
Compressed Harwell-Boeing format file: west0156.rua.gz (2345 bytes)

Visualizations

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

Structure Plot	City Plot
Spectral Portrait	3D Interactive City Plot
	[ VRML Version 2, gzipped ] 47340 bytes

Matrix Statistics

Size	Type
156 x 156, 371 entries	real unsymmetric
Nonzeros
total diagonal below diagonal above diagonal A-A' 362 0 169 193 724
Column Data	Row Data
Average nonzeros per column : 2.3 Standard deviation : 0.98 index nonzeros longest 144 6 shortest 1 1	Average nonzeros per row : 2.3 Standard deviation : 1.2 index nonzeros longest 2 7 shortest 6 1
Bandwidths	Profile Storage
lower 148 upper 110 average |i-j| 66 std.dev. 38	min max ave. std.dev. lower bandwidth 2 148 58 42 upper bandwidth 2 110 55 32 Nonsymmetric skyline storage 17579
Heaviest diagonals
offset from main 27 -16 25 26 90 76 77 -140 -111 -92 nonzeros 12 11 10 9 8 7 7 6 6 6 accumulated percent 3.31 6.35 9.12 11.60 13.81 15.75 17.68 19.34 20.99 22.65 Top 10 out of 154 nonvoid diagonals.
Conditioning
Frobenius norm 1.9e+07 condition number (est.) 1.6e+31 2-norm (est.) 1.9e+07 diagonal dominance no

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Last change in this page: Wed Sep 22 13:33:31 US/Eastern 2004 [Comments: ]