Matrix FIDAP008

FIDAP008: 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: fidap008.mtx.gz (813229 bytes)
Right-hand-side in MatrixMarket array format: fidap008_rhs1.mtx.gz (442 bytes)

Compressed Harwell-Boeing format file: fidap008.rua.gz (636072 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

3096 x 3096, 106302 entries real unsymmetric

Nonzeros

total diagonal below diagonal above diagonal A-A'
90799 3096 43277 44426 65306

Column Data Row Data

Average nonzeros per column : 29
Standard deviation : 11
index nonzeros
longest 212 50
shortest 262 12
Average nonzeros per row : 29
Standard deviation : 17
index nonzeros
longest 213 75
shortest 80 4

Bandwidths Profile Storage

lower 128 upper 128
average |i-j| 59 std.dev. 41

min max ave. std.dev.
lower bandwidth 0 127 91 31
upper bandwidth 0 127 92 31
Nonsymmetric skyline storage 563788

Heaviest diagonals

offset from main 0 -59 59 -3 3 -62 -56 62 56 1
nonzeros 3096 2931 2916 2869 2869 2739 2728 2721 2703 2030
accumulated percent 3.41 6.64 9.85 13.01 16.17 19.19 22.19 25.19 28.16 30.40

Top 10 out of 213 nonvoid diagonals.

Conditioning

Frobenius norm 4.2e+08 condition number (est.) 1.08e+11
2-norm (est.) 4.4e+07 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: ]