Matrix FIDAP005

FIDAP005: 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: fidap005.mtx.gz (1507 bytes)
Right-hand-side in MatrixMarket array format: fidap005_rhs1.mtx.gz (123 bytes)

Compressed Harwell-Boeing format file: fidap005.rua.gz (1504 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

	3D Interactive City Plot
	[ VRML Version 2, gzipped ] 33757 bytes

Size Type

27 x 27, 279 entries real unsymmetric

Nonzeros

total diagonal below diagonal above diagonal A-A'
279 27 126 126 0

Column Data Row Data

Average nonzeros per column : 10
Standard deviation : 3.3
index nonzeros
longest 4 15
shortest 1 6
Average nonzeros per row : 10
Standard deviation : 3.3
index nonzeros
longest 4 15
shortest 1 6

Bandwidths Profile Storage

lower 21 upper 21
average |i-j| 8.3 std.dev. 6.4

min max ave. std.dev.
lower bandwidth 0 20 10 7.5
upper bandwidth 0 20 10 7.5
Symmetric skyline storage requirement:303

Heaviest diagonals

offset from main 0 -1 1 -9 9 -10 -8 8 10 -18
nonzeros 27 24 24 18 18 16 16 16 16 9
accumulated percent 9.68 18.28 26.88 33.33 39.78 45.52 51.25 56.99 62.72 65.95

Top 10 out of 25 nonvoid diagonals.

Conditioning

Frobenius norm 9.1e+06 condition number (est.) 1.3e+08
2-norm (est.) 4.4e+06 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 13:34:01 US/Eastern 2004 [Comments: ]