NNC666: Nuclear reactor models

from set NUCL, from the Harwell-Boeing Collection

Download as

Compressed MatrixMarket format file: nnc666.mtx.gz (14930 bytes)
Compressed Harwell-Boeing format file: nnc666.rua.gz (8949 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 ] 91906 bytes

Matrix Statistics

Size	Type
666 x 666, 4044 entries	real unsymmetric
Nonzeros
total diagonal below diagonal above diagonal A-A' 4032 410 1618 2004 2128
Column Data	Row Data
Average nonzeros per column : 6.1 Standard deviation : 3.3 index nonzeros longest 67 16 shortest 15 1	Average nonzeros per row : 6.1 Standard deviation : 2.5 index nonzeros longest 67 16 shortest 15 1
Bandwidths	Profile Storage
lower 262 upper 262 average |i-j| 23 std.dev. 25	min max ave. std.dev. lower bandwidth 1 262 28 32 upper bandwidth 1 262 28 32 Nonsymmetric skyline storage 36886
Heaviest diagonals
offset from main 0 4 3 5 6 7 -4 -3 8 2 nonzeros 410 131 130 111 104 95 93 92 92 89 accumulated percent 10.17 13.42 16.64 19.39 21.97 24.33 26.64 28.92 31.20 33.41 Top 10 out of 201 nonvoid diagonals.
Conditioning
Frobenius norm 6.5e+03 condition number (est.) 1.8e+11 2-norm (est.) 1.1e+03 diagonal dominance no

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Last change in this page: Wed Sep 22 13:33:47 US/Eastern 2004 [Comments: ]