Matrix properties
number of rows	2,597
number of columns	2,597
nonzeros	71,601
structural full rank?	yes
structural rank	2,597
# of blocks from dmperm	242
# strongly connected comp.	242
entries not in dmperm blocks	0
explicit zero entries	4,766
nonzero pattern symmetry	94%
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 2597-by-1
x	full 2597-by-1

Notes:

next: - first: DRIVCAV/cavity10                         
pattern is the same as the transpose of DRIVCAV/cavity10

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	74,053	75,420	162,781
Cholesky flop count	3.5e+06	3.4e+06	1.6e+07
nnz(L+U), no partial pivoting	145,509	148,243	322,965
nnz(V) for QR, upper bound nnz(L) for LU	129,681	157,638	157,152
nnz(R) for QR, upper bound nnz(U) for LU	408,442	474,071	450,358

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 4766 explicit zero entries.

Maintained by Tim Davis, last updated 30-Sep-2008.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.