Matrix properties
number of rows	1,733
number of columns	1,733
nonzeros	22,189
structural full rank?	yes
structural rank	1,733
# of blocks from dmperm	2
# strongly connected comp.	2
entries not in dmperm blocks	0
explicit zero entries	0
nonzero pattern symmetry	symmetric
numeric value symmetry	symmetric
type	real
structure	symmetric
Cholesky candidate?	yes
positive definite?	yes

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'))	33,725	40,082	33,725
Cholesky flop count	8.2e+05	1.3e+06	8.2e+05
nnz(L+U), no partial pivoting	65,717	78,431	65,717
nnz(V) for QR, upper bound nnz(L) for LU	34,827	50,191	38,701
nnz(R) for QR, upper bound nnz(U) for LU	67,851	92,698	70,455

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.