Matrix FIDAP014

FIDAP014: 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: fidap014.mtx.gz (600444 bytes)
Right-hand-side in MatrixMarket array format: fidap014_rhs1.mtx.gz (538 bytes)

Compressed Harwell-Boeing format file: fidap014.rua.gz (521332 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

3251 x 3251, 66647 entries real unsymmetric

Nonzeros

total diagonal below diagonal above diagonal A-A'
65747 2351 31698 31698 0

Column Data Row Data

Average nonzeros per column : 20
Standard deviation : 7.9
index nonzeros
longest 154 37
shortest 2 6
Average nonzeros per row : 20
Standard deviation : 7.9
index nonzeros
longest 154 37
shortest 2 6

Bandwidths Profile Storage

lower 319 upper 319
average |i-j| 73 std.dev. 83

min max ave. std.dev.
lower bandwidth 0 318 68 83
upper bandwidth 0 318 68 83
Symmetric skyline storage requirement:224206

Heaviest diagonals

offset from main -2 2 0 -4 4 -6 6 -7 7 -5
nonzeros 2710 2710 2351 2187 2187 1835 1835 1782 1782 1684
accumulated percent 4.12 8.24 11.82 15.15 18.47 21.26 24.05 26.76 29.48 32.04

Top 10 out of 601 nonvoid diagonals.

Conditioning

Frobenius norm 1.1e+08 condition number (est.) 2.62e+16
2-norm (est.) 1.3e+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: ]