Matrix FIDAP004

FIDAP004: 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: fidap004.mtx.gz (247222 bytes)
Right-hand-side in MatrixMarket array format: fidap004_rhs1.mtx.gz (1267 bytes)

Compressed Harwell-Boeing format file: fidap004.rua.gz (191966 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

1601 x 1601, 32287 entries real unsymmetric

Nonzeros

total diagonal below diagonal above diagonal A-A'
31837 1151 15343 15343 0

Column Data Row Data

Average nonzeros per column : 20
Standard deviation : 7.9
index nonzeros
longest 93 37
shortest 1598 6
Average nonzeros per row : 20
Standard deviation : 7.9
index nonzeros
longest 93 37
shortest 1598 6

Bandwidths Profile Storage

lower 113 upper 113
average |i-j| 46 std.dev. 33

min max ave. std.dev.
lower bandwidth 0 112 73 28
upper bandwidth 0 112 73 28
Symmetric skyline storage requirement:119229

Heaviest diagonals

offset from main -2 2 0 -4 4 -3 3 -5 5 -108
nonzeros 1346 1346 1151 793 793 734 734 555 555 511
accumulated percent 4.23 8.46 12.07 14.56 17.05 19.36 21.66 23.41 25.15 26.76

Top 10 out of 185 nonvoid diagonals.

Conditioning

Frobenius norm 16 condition number (est.) 5.17e+03
2-norm (est.) 1.6 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: ]