Matrix properties
number of rows	2,568
number of columns	2,568
nonzeros	75,628
structural full rank?	yes
structural rank	2,568
# of blocks from dmperm	1
# strongly connected comp.	1
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
nnz(chol(P*(A+A'+s*I)*P'))	81,264	102,265
Cholesky flop count	3.1e+06	5.6e+06
nnz(L+U), no partial pivoting	159,960	201,962
nnz(V) for QR, upper bound nnz(L) for LU	158,890	157,833
nnz(R) for QR, upper bound nnz(U) for LU	444,278	395,687

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.