Matrix properties
number of rows	116,158
number of columns	116,158
nonzeros	8,516,500
structural full rank?	yes
structural rank	116,158
# of blocks from dmperm	1
# strongly connected comp.	1
entries not in dmperm blocks	0
explicit zero entries	0
nonzero pattern symmetry	42%
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	S. Norris
editor	T. Davis
date	2003
kind	2D/3D problem
2D/3D problem?	yes

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	15,162,244	18,007,730
Cholesky flop count	1.4e+10	1.8e+10
nnz(L+U), no partial pivoting	30,208,330	35,899,302
nnz(V) for QR, upper bound nnz(L) for LU	27,787,764	26,667,950
nnz(R) for QR, upper bound nnz(U) for LU	50,282,771	47,328,978

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.