Matrix properties
number of rows	317
number of columns	317
nonzeros	7,311
structural full rank?	yes
structural rank	317
# of blocks from dmperm	82
# strongly connected comp.	82
entries not in dmperm blocks	1,388
explicit zero entries	16
nonzero pattern symmetry	80%
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 317-by-1
x	full 317-by-1

Notes:

next: DRIVCAV/cavity04 first: DRIVCAV/cavity01
pattern is the same as DRIVCAV/cavity01       

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	6,120	7,014	6,722
Cholesky flop count	1.3e+05	1.9e+05	2.1e+05
nnz(L+U), no partial pivoting	11,923	13,711	14,515
nnz(V) for QR, upper bound nnz(L) for LU	6,413	5,909	6,331
nnz(R) for QR, upper bound nnz(U) for LU	16,042	16,286	15,637

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 16 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.