WEST2021: Chemical engineering plant models
Fifteen stage column section, all rigorous

from set CHEMWEST, from the Harwell-Boeing Collection

Download as

Compressed MatrixMarket format file: west2021.mtx.gz (53181 bytes)
Compressed Harwell-Boeing format file: west2021.rua.gz (47761 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 ] 201558 bytes

Matrix Statistics

Size	Type
2021 x 2021, 7353 entries	real unsymmetric
Nonzeros
total diagonal below diagonal above diagonal A-A' 7310 5 4350 2955 14586
Column Data	Row Data
Average nonzeros per column : 3.6 Standard deviation : 3.7 index nonzeros longest 88 26 shortest 82 1	Average nonzeros per row : 3.6 Standard deviation : 2.4 index nonzeros longest 774 12 shortest 1 1
Bandwidths	Profile Storage
lower 1888 upper 1309 average |i-j| 4.3e+02 std.dev. 3.3e+02	min max ave. std.dev. lower bandwidth 2 2003 4.3e+02 3.2e+02 upper bandwidth 2 1976 7.8e+02 5.3e+02 Nonsymmetric skyline storage 2436401
Heaviest diagonals
offset from main 13 12 10 16 -547 -504 -461 -418 -375 -332 nonzeros 42 33 31 31 29 29 29 29 29 29 accumulated percent 0.57 1.03 1.45 1.87 2.27 2.67 3.06 3.46 3.86 4.25 Top 10 out of 1485 nonvoid diagonals.
Conditioning
Frobenius norm 1.8e+06 condition number (est.) 7.5e+12 2-norm (est.) 3.2e+05 diagonal dominance no

[ Home ] [ Search ] [ Browse ] [ Resources ]

Last change in this page: Wed Sep 22 13:33:32 US/Eastern 2004 [Comments: ]