Matrix FIDAP027

FIDAP027: 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: fidap027.mtx.gz (354343 bytes)
Right-hand-side in MatrixMarket array format: fidap027_rhs1.mtx.gz (7856 bytes)

Compressed Harwell-Boeing format file: fidap027.rua.gz (297238 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

974 x 974, 40736 entries real unsymmetric

Nonzeros

total diagonal below diagonal above diagonal A-A'
37602 782 18090 18730 20220

Column Data Row Data

Average nonzeros per column : 39
Standard deviation : 27
index nonzeros
longest 228 205
shortest 44 6
Average nonzeros per row : 39
Standard deviation : 23
index nonzeros
longest 203 92
shortest 594 2

Bandwidths Profile Storage

lower 116 upper 137
average |i-j| 47 std.dev. 33

min max ave. std.dev.
lower bandwidth 0 115 71 27
upper bandwidth 0 136 72 28
Nonsymmetric skyline storage 137917

Heaviest diagonals

offset from main 0 -1 1 2 -2 -3 3 -4 4 48
nonzeros 782 754 744 730 728 686 678 558 556 484
accumulated percent 2.08 4.08 6.06 8.00 9.94 11.77 13.57 15.05 16.53 17.82

Top 10 out of 252 nonvoid diagonals.

Conditioning

Frobenius norm 0.95 condition number (est.) 1.75e+06
2-norm (est.) 0.26 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: ]