Matrix properties
number of rows	791
number of columns	791
nonzeros	10,685
structural full rank?	yes
structural rank	791
# of blocks from dmperm	36
# strongly connected comp.	7
entries not in dmperm blocks	491
explicit zero entries	0
nonzero pattern symmetry	23%
numeric value symmetry	12%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	M. Morandini
editor	T. Davis
date	2006
kind	structural problem
2D/3D problem?	yes

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	15,487	16,937	13,787
Cholesky flop count	3.4e+05	4.3e+05	2.9e+05
nnz(L+U), no partial pivoting	30,183	33,083	27,274
nnz(V) for QR, upper bound nnz(L) for LU	9,022	11,212	7,985
nnz(R) for QR, upper bound nnz(U) for LU	23,749	30,594	20,166

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.