Matrix properties
number of rows	1,182
number of columns	1,182
nonzeros	29,675
structural full rank?	yes
structural rank	1,182
# of blocks from dmperm	162
# strongly connected comp.	162
entries not in dmperm blocks	0
explicit zero entries	3,072
nonzero pattern symmetry	90%
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	A. Chapman
editor	A. Baggag, Y. Saad
date	1996
kind	subsequent computational fluid dynamics problem
2D/3D problem?	yes

Additional fields	size and type
b	full 1182-by-1
x	full 1182-by-1

Notes:

next: DRIVCAV/cavity07 first: DRIVCAV/cavity05          
pattern is the same as the transpose of DRIVCAV/cavity05

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	25,749	27,864	51,984
Cholesky flop count	8.2e+05	1.0e+06	3.6e+06
nnz(L+U), no partial pivoting	50,316	54,546	102,786
nnz(V) for QR, upper bound nnz(L) for LU	37,679	48,773	49,664
nnz(R) for QR, upper bound nnz(U) for LU	121,612	138,810	133,779

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 3072 explicit zero entries.

Maintained by Tim Davis, last updated 04-May-2008.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.