UTM1700A: Tokamak Matrices

from set TOKAMAK, from the SPARSKIT Collection

Download as

Compressed MatrixMarket format file: utm1700a.mtx.gz (252892 bytes)
Right-hand-side in MatrixMarket array format: utm1700a_rhs1.mtx.gz (14087 bytes)
Compressed Harwell-Boeing format file: utm1700a.rua.gz (235080 bytes)

Visualizations

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

Structure Plot	City Plot
	3D Interactive City Plot
	[ VRML Version 2, gzipped ] 677808 bytes

Matrix Statistics

Size	Type
1700 x 1700, 21313 entries	real unsymmetric
Nonzeros
total diagonal below diagonal above diagonal A-A' 21313 1700 9446 10167 28306
Column Data	Row Data
Average nonzeros per column : 13 Standard deviation : 6.2 index nonzeros longest 185 20 shortest 51 1	Average nonzeros per row : 13 Standard deviation : 6.7 index nonzeros longest 561 28 shortest 1 1
Bandwidths	Profile Storage
lower 245 upper 248 average |i-j| 66 std.dev. 81	min max ave. std.dev. lower bandwidth 0 244 1.5e+02 61 upper bandwidth 0 247 1.5e+02 61 Nonsymmetric skyline storage 495140
Heaviest diagonals
offset from main 0 170 -170 -5 -1 5 1 -2 2 172 nonzeros 1700 1442 1386 1294 1292 1286 1143 1036 898 790 accumulated percent 7.98 14.74 21.25 27.32 33.38 39.41 44.78 49.64 53.85 57.56 Top 10 out of 68 nonvoid diagonals.
Conditioning
Frobenius norm 41 condition number (est.) 6.24e+06 2-norm (est.) 2.3 diagonal dominance no

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Last change in this page: Wed Sep 22 13:34:04 US/Eastern 2004 [Comments: ]