Matrix FIDAP025

FIDAP025: 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: fidap025.mtx.gz (210806 bytes)
Right-hand-side in MatrixMarket array format: fidap025_rhs1.mtx.gz (1297 bytes)

Compressed Harwell-Boeing format file: fidap025.rua.gz (157244 bytes)

Help: My browser can't read the compressed data files. What now?

Visualizations

Click on image to get an enlarged version. Click on label to get an explanation.

Structure Plot	City Plot

Size Type

848 x 848, 24532 entries real unsymmetric

Nonzeros

total diagonal below diagonal above diagonal A-A'
24261 608 11820 11833 540

Column Data Row Data

Average nonzeros per column : 29
Standard deviation : 15
index nonzeros
longest 171 62
shortest 25 6
Average nonzeros per row : 29
Standard deviation : 15
index nonzeros
longest 171 62
shortest 344 4

Bandwidths Profile Storage

lower 96 upper 96
average |i-j| 38 std.dev. 28

min max ave. std.dev.
lower bandwidth 0 95 59 23
upper bandwidth 0 95 59 23
Nonsymmetric skyline storage 98737

Heaviest diagonals

offset from main -2 2 1 -1 -3 3 0 -4 4 -5
nonzeros 711 711 652 642 626 626 608 467 467 339
accumulated percent 2.93 5.86 8.55 11.19 13.78 16.36 18.86 20.79 22.71 24.11

Top 10 out of 171 nonvoid diagonals.

Conditioning

Frobenius norm 1.7 condition number (est.) 7.9e+07
2-norm (est.) 0.65 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.

[ Home ] [ Search ] [ Browse ] [ Resources ]

Last change in this page: Wed Sep 22 13:34:02 US/Eastern 2004 [Comments: ]