Matrix FIDAP031

FIDAP031: Matrices generated by the FIDAP Package

from set FIDAP, from the SPARSKIT Collection

[Download] [Visualizations] [Matrix Statistics] [Set Information]

Download as

Compressed MatrixMarket format file: fidap031.mtx.gz (945168 bytes)
Right-hand-side in MatrixMarket array format: fidap031_rhs1.mtx.gz (3719 bytes)

Compressed Harwell-Boeing format file: fidap031.rua.gz (775641 bytes)

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Visualizations

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

Structure Plot	City Plot

Size Type

3909 x 3909, 115299 entries real unsymmetric

Nonzeros

total diagonal below diagonal above diagonal A-A'
91165 3279 44683 43203 47458

Column Data Row Data

Average nonzeros per column : 23
Standard deviation : 14
index nonzeros
longest 92 72
shortest 2 6
Average nonzeros per row : 23
Standard deviation : 14
index nonzeros
longest 224 75
shortest 4 7

Bandwidths Profile Storage

lower 142 upper 140
average |i-j| 61 std.dev. 43

min max ave. std.dev.
lower bandwidth 0 141 97 34
upper bandwidth 0 139 96 34
Nonsymmetric skyline storage 748166

Heaviest diagonals

offset from main 0 -4 4 3 7 -8 2 -131 62 -62
nonzeros 3279 2953 2750 1348 1273 1200 1194 1133 1129 1124
accumulated percent 3.60 6.84 9.85 11.33 12.73 14.04 15.35 16.60 17.83 19.07

Top 10 out of 236 nonvoid diagonals.

Conditioning

Frobenius norm 88 condition number (est.) 1.01e+06
2-norm (est.) 23 diagonal dominance no

Set Information

Set FIDAP
Source:	Isaac Hasbani (Fluid Dynamics International) Barry Rackner (Minnesota Supercomputer Center)
Discipline:	Finite element modeling

The Matrix Market is a service of the Mathematical and Computational Sciences Division / Information Technology Laboratory / National Institute of Standards and Technology.

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Last change in this page: Wed Sep 22 13:34:02 US/Eastern 2004 [Comments: matrixmarket@nist.gov ]