Matrix properties
number of rows	9,728
number of columns	9,728
nonzeros	725,144
structural full rank?	yes
structural rank	9,728
# 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	binary
structure	symmetric
Cholesky candidate?	yes
positive definite?	no

author	A. Andrianov
editor	T. Davis
date	2006
kind	optimization problem
2D/3D problem?	no

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	12,293,576	9,726,138
Cholesky flop count	2.4e+10	1.5e+10
nnz(L+U), no partial pivoting	24,577,424	19,442,548
nnz(V) for QR, upper bound nnz(L) for LU	26,906,965	26,792,440
nnz(R) for QR, upper bound nnz(U) for LU	42,517,635	43,694,142

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.