Matrix FIDAP002

FIDAP002: 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: fidap002.mtx.gz (212912 bytes)
Right-hand-side in MatrixMarket array format: fidap002_rhs1.mtx.gz (1157 bytes)

Compressed Harwell-Boeing format file: fidap002.rua.gz (170023 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

441 x 441, 26831 entries real unsymmetric

Nonzeros

total diagonal below diagonal above diagonal A-A'
26831 441 13195 13195 0

Column Data Row Data

Average nonzeros per column : 61
Standard deviation : 26
index nonzeros
longest 164 125
shortest 1 28
Average nonzeros per row : 61
Standard deviation : 26
index nonzeros
longest 164 125
shortest 1 28

Bandwidths Profile Storage

lower 130 upper 130
average |i-j| 37 std.dev. 31

min max ave. std.dev.
lower bandwidth 0 129 46 35
upper bandwidth 0 129 46 35
Symmetric skyline storage requirement:20942

Heaviest diagonals

offset from main 0 -1 1 -2 2 -3 3 -4 4 -5
nonzeros 441 428 428 417 417 404 404 393 393 378
accumulated percent 1.64 3.24 4.83 6.39 7.94 9.45 10.95 12.42 13.88 15.29

Top 10 out of 259 nonvoid diagonals.

Conditioning

Frobenius norm 9.8e+08 condition number (est.) 5.48e+10
2-norm (est.) 7e+08 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 13:34:00 US/Eastern 2004 [Comments: ]