Matrix properties
number of rows	3,565
number of columns	3,565
nonzeros	67,591
structural full rank?	yes
structural rank	3,565
# of blocks from dmperm	1,652
# strongly connected comp.	1,652
entries not in dmperm blocks	0
explicit zero entries	0
nonzero pattern symmetry	symmetric
numeric value symmetry	95%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	A. Baggag, Y. Saad
editor	A. Baggag, Y. Saad
date	1994
kind	computational fluid dynamics problem
2D/3D problem?	yes

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	98,073	99,944	98,073
Cholesky flop count	6.9e+06	6.6e+06	6.9e+06
nnz(L+U), no partial pivoting	192,581	196,323	192,581
nnz(V) for QR, upper bound nnz(L) for LU	144,196	161,347	152,842
nnz(R) for QR, upper bound nnz(U) for LU	398,386	392,116	382,804

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.