NNC1374: Nuclear reactor models

from set NUCL, from the Harwell-Boeing Collection

Download as

Compressed MatrixMarket format file: nnc1374.mtx.gz (32017 bytes)
Compressed Harwell-Boeing format file: nnc1374.rua.gz (17786 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 ] 192718 bytes

Matrix Statistics

Size	Type
1374 x 1374, 8606 entries	real unsymmetric
Nonzeros
total diagonal below diagonal above diagonal A-A' 8588 870 3442 4276 4548
Column Data	Row Data
Average nonzeros per column : 6.3 Standard deviation : 3.4 index nonzeros longest 83 16 shortest 15 1	Average nonzeros per row : 6.3 Standard deviation : 2.5 index nonzeros longest 83 16 shortest 15 1
Bandwidths	Profile Storage
lower 618 upper 618 average |i-j| 30 std.dev. 37	min max ave. std.dev. lower bandwidth 1 618 39 48 upper bandwidth 1 618 39 48 Nonsymmetric skyline storage 106528
Heaviest diagonals
offset from main 0 4 3 5 6 7 8 9 -4 -3 nonzeros 870 259 258 230 220 207 201 187 181 180 accumulated percent 10.13 13.15 16.15 18.83 21.39 23.80 26.14 28.32 30.43 32.52 Top 10 out of 276 nonvoid diagonals.
Conditioning
Frobenius norm 9.6e+03 condition number (est.) 1e+02 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: ]