Matrix FIDAP012

FIDAP012: 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: fidap012.mtx.gz (586428 bytes)
Right-hand-side in MatrixMarket array format: fidap012_rhs1.mtx.gz (1089 bytes)

Compressed Harwell-Boeing format file: fidap012.rua.gz (457613 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

3973 x 3973, 80151 entries real unsymmetric

Nonzeros

total diagonal below diagonal above diagonal A-A'
79017 2839 38089 38089 0

Column Data Row Data

Average nonzeros per column : 20
Standard deviation : 8
index nonzeros
longest 97 37
shortest 3913 7
Average nonzeros per row : 20
Standard deviation : 8
index nonzeros
longest 97 37
shortest 3913 7

Bandwidths Profile Storage

lower 110 upper 110
average |i-j| 41 std.dev. 41

min max ave. std.dev.
lower bandwidth 0 109 45 42
upper bandwidth 0 109 45 42
Symmetric skyline storage requirement:181695

Heaviest diagonals

offset from main -2 2 0 -4 4 -6 6 -7 7 -5
nonzeros 3460 3460 2839 2667 2667 2075 2075 2062 2062 1976
accumulated percent 4.38 8.76 12.35 15.73 19.10 21.73 24.35 26.96 29.57 32.07

Top 10 out of 209 nonvoid diagonals.

Conditioning

Frobenius norm 1.8e+03 condition number (est.) 2.16e+20
2-norm (est.) 1.3e+02 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: ]