Matrix properties
number of rows	63,838
number of columns	63,838
nonzeros	14,148,858
structural full rank?	yes
structural rank	63,838
# 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	S. Mayer
editor	J. Koster
date	2004
kind	structural problem
2D/3D problem?	yes

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	57,159,985	43,693,519
Cholesky flop count	9.0e+10	4.6e+10
nnz(L+U), no partial pivoting	114,256,132	87,323,200
nnz(V) for QR, upper bound nnz(L) for LU	83,204,962	-
nnz(R) for QR, upper bound nnz(U) for LU	229,827,082	-

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.