WEST0167: Chemical engineering plant models
Rigorous model of a chemical stage

from set CHEMWEST, from the Harwell-Boeing Collection

Download as

Compressed MatrixMarket format file: west0167.mtx.gz (3623 bytes)
Compressed Harwell-Boeing format file: west0167.rua.gz (3517 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 ] 64146 bytes

Matrix Statistics

Size	Type
167 x 167, 507 entries	real unsymmetric
Nonzeros
total diagonal below diagonal above diagonal A-A' 506 14 176 316 976
Column Data	Row Data
Average nonzeros per column : 3 Standard deviation : 2.4 index nonzeros longest 8 19 shortest 2 1	Average nonzeros per row : 3 Standard deviation : 1.9 index nonzeros longest 126 9 shortest 7 1
Bandwidths	Profile Storage
lower 159 upper 21 average |i-j| 26 std.dev. 40	min max ave. std.dev. lower bandwidth 1 159 67 46 upper bandwidth 2 21 8.2 3.2 Nonsymmetric skyline storage 12337
Heaviest diagonals
offset from main 6 4 10 2 5 8 3 9 7 0 nonzeros 74 40 40 29 28 25 23 19 15 14 accumulated percent 14.62 22.53 30.43 36.17 41.70 46.64 51.19 54.94 57.91 60.67 Top 10 out of 107 nonvoid diagonals.
Conditioning
Frobenius norm 6.4e+05 condition number (est.) 1.7e+11 2-norm (est.) 3.2e+05 diagonal dominance no

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