Matrix FIDAP028

FIDAP028: 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: fidap028.mtx.gz (662436 bytes)
Right-hand-side in MatrixMarket array format: fidap028_rhs1.mtx.gz (1160 bytes)

Compressed Harwell-Boeing format file: fidap028.rua.gz (526689 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

2603 x 2603, 77653 entries real unsymmetric

Nonzeros

total diagonal below diagonal above diagonal A-A'
76903 1853 37525 37525 922

Column Data Row Data

Average nonzeros per column : 30
Standard deviation : 15
index nonzeros
longest 175 62
shortest 25 8
Average nonzeros per row : 30
Standard deviation : 15
index nonzeros
longest 175 62
shortest 25 8

Bandwidths Profile Storage

lower 112 upper 112
average |i-j| 47 std.dev. 34

min max ave. std.dev.
lower bandwidth 0 111 72 28
upper bandwidth 0 111 72 28
Symmetric skyline storage requirement:372383

Heaviest diagonals

offset from main -2 2 -1 1 -3 3 0 -4 4 -5
nonzeros 2180 2180 2005 2005 1940 1940 1853 1444 1444 1029
accumulated percent 2.83 5.67 8.28 10.88 13.41 15.93 18.34 20.22 22.09 23.43

Top 10 out of 177 nonvoid diagonals.

Conditioning

Frobenius norm 5.8e+02 condition number (est.) 4.30e+05
2-norm (est.) 92 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: ]