Matrix properties
number of rows	2,597
number of columns	2,597
nonzeros	76,171
structural full rank?	yes
structural rank	2,597
# of blocks from dmperm	242
# strongly connected comp.	242
entries not in dmperm blocks	4,652
explicit zero entries	196
nonzero pattern symmetry	94%
numeric value symmetry	64%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

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

Additional fields	size and type
b	full 2597-by-1
x	full 2597-by-1

Notes:

next: DRIVCAV/cavity11 first: DRIVCAV/cavity10

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	90,335	93,757	160,679
Cholesky flop count	4.9e+06	4.7e+06	1.6e+07
nnz(L+U), no partial pivoting	178,073	184,917	323,413
nnz(V) for QR, upper bound nnz(L) for LU	142,400	155,396	142,947
nnz(R) for QR, upper bound nnz(U) for LU	463,077	465,010	434,557

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 196 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.