Matrix CAN 96

CAN 96: Structures problems in aircraft design

from set CANNES, from the Harwell-Boeing Collection

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Compressed MatrixMarket format file: can___96.mtx.gz (815 bytes)

Compressed Harwell-Boeing format file: can___96.psa.gz (779 bytes)

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Visualizations

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Structure Plot

Size Type

96 x 96, 432 entries pattern symmetric indefinite

Nonzeros

total diagonal below diagonal above diagonal A-A'
768 96 336 336 0

Column Data Row Data

Average nonzeros per column : 8
Standard deviation : 1.4
index nonzeros
longest 17 9
shortest 1 6
Average nonzeros per row : 8
Standard deviation : 1.4
index nonzeros
longest 17 9
shortest 1 6

Bandwidths Profile Storage

lower 32 upper 32
average |i-j| 10 std.dev. 7.8

min max ave. std.dev.
lower bandwidth 1 32 16 6.9
upper bandwidth 1 32 16 6.9
Symmetric skyline storage requirement:1550

Heaviest diagonals

offset from main 0 -1 1 -15 15 -16 16 -17 17 -31
nonzeros 96 95 95 81 81 80 80 75 75 5
accumulated percent 12.50 24.87 37.24 47.79 58.33 68.75 79.17 88.93 98.70 99.35

Top 10 out of 11 nonvoid diagonals.

Conditioning

Pattern matrix. No conditioning information.

Set Information

Set CANNES
Source:	Lucien Marro, Programmation Scientifique, Aerospatiale Cannes, France.
Discipline:	Finite-element structures problems in aircraft design.
Accession:	June 3, 1981

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Last change in this page: Wed Sep 22 13:33:29 US/Eastern 2004 [Comments: ]