Matrix properties
number of rows	6,019
number of columns	6,019
nonzeros	40,965
structural full rank?	yes
structural rank	6,019
# 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	NASA
editor	G. Kumfert, A. Pothen
date	2003
kind	structural problem
2D/3D problem?	yes

Additional fields	size and type
coord	full 6019-by-2

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	113,825	121,894
Cholesky flop count	3.6e+06	4.2e+06
nnz(L+U), no partial pivoting	221,631	237,769
nnz(V) for QR, upper bound nnz(L) for LU	159,536	171,588
nnz(R) for QR, upper bound nnz(U) for LU	300,698	324,887

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.