UTM1700B: Tokamak Matrices

from set TOKAMAK, from the SPARSKIT Collection

Download as

Compressed MatrixMarket format file: utm1700b.mtx.gz (255075 bytes)
Right-hand-side in MatrixMarket array format: utm1700b_rhs1.mtx.gz (13583 bytes)
Compressed Harwell-Boeing format file: utm1700b.rua.gz (235774 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 ] 684189 bytes

Matrix Statistics

Size	Type
1700 x 1700, 21509 entries	real unsymmetric
Nonzeros
total diagonal below diagonal above diagonal A-A' 21509 1700 9848 9961 29252
Column Data	Row Data
Average nonzeros per column : 13 Standard deviation : 6.7 index nonzeros longest 225 20 shortest 46 1	Average nonzeros per row : 13 Standard deviation : 6.7 index nonzeros longest 466 29 shortest 1 1
Bandwidths	Profile Storage
lower 255 upper 258 average |i-j| 65 std.dev. 80	min max ave. std.dev. lower bandwidth 0 254 1.4e+02 61 upper bandwidth 0 257 1.5e+02 62 Nonsymmetric skyline storage 494148
Heaviest diagonals
offset from main 0 170 -170 -1 -5 5 1 -2 2 7 nonzeros 1700 1440 1376 1292 1177 1143 1099 1036 865 777 accumulated percent 7.90 14.60 21.00 27.00 32.47 37.79 42.90 47.71 51.74 55.35 Top 10 out of 72 nonvoid diagonals.
Conditioning
Frobenius norm 41 condition number (est.) 1.16e+07 2-norm (est.) 2.6 diagonal dominance no

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