Matrix FIDAP023

FIDAP023: 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: fidap023.mtx.gz (342926 bytes)
Right-hand-side in MatrixMarket array format: fidap023_rhs1.mtx.gz (5326 bytes)

Compressed Harwell-Boeing format file: fidap023.rua.gz (267388 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

1409 x 1409, 43481 entries real unsymmetric

Nonzeros

total diagonal below diagonal above diagonal A-A'
42536 1008 20667 20861 3102

Column Data Row Data

Average nonzeros per column : 30
Standard deviation : 15
index nonzeros
longest 161 62
shortest 54 6
Average nonzeros per row : 30
Standard deviation : 15
index nonzeros
longest 858 67
shortest 1402 5

Bandwidths Profile Storage

lower 198 upper 203
average |i-j| 39 std.dev. 30

min max ave. std.dev.
lower bandwidth 0 197 60 28
upper bandwidth 0 202 61 29
Nonsymmetric skyline storage 168559

Heaviest diagonals

offset from main -2 2 -1 1 -3 3 0 4 -4 -5
nonzeros 1170 1170 1075 1069 1026 1023 1008 785 773 547
accumulated percent 2.75 5.50 8.03 10.54 12.95 15.36 17.73 19.57 21.39 22.68

Top 10 out of 311 nonvoid diagonals.

Conditioning

Frobenius norm 1.4e+06 condition number (est.) 2.28e+13
2-norm (est.) 2.7e+05 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: ]