Matrix properties
number of rows	1,182
number of columns	1,182
nonzeros	32,702
structural full rank?	yes
structural rank	1,182
# of blocks from dmperm	162
# strongly connected comp.	162
entries not in dmperm blocks	3,027
explicit zero entries	45
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: - first: DRIVCAV/cavity05        
pattern is the same as DRIVCAV/cavity05

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	33,060	35,836	54,166
Cholesky flop count	1.2e+06	1.4e+06	3.9e+06
nnz(L+U), no partial pivoting	64,938	70,490	110,177
nnz(V) for QR, upper bound nnz(L) for LU	42,951	54,089	49,479
nnz(R) for QR, upper bound nnz(U) for LU	124,143	156,299	138,811

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 45 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.