Matrix properties
number of rows	97,578
number of columns	97,578
nonzeros	9,753,570
structural full rank?	yes
structural rank	97,578
# 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	C. Damhaug
editor	J. Koster
date	1999
kind	structural problem
2D/3D problem?	yes

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	32,991,606	34,057,116
Cholesky flop count	2.4e+10	2.2e+10
nnz(L+U), no partial pivoting	65,885,634	68,016,654
nnz(V) for QR, upper bound nnz(L) for LU	70,020,585	58,882,014
nnz(R) for QR, upper bound nnz(U) for LU	172,049,508	134,977,617

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.