Matrix properties
number of rows	16,428
number of columns	16,428
nonzeros	63,406
structural full rank?	yes
structural rank	16,428
# of blocks from dmperm	1,061
# strongly connected comp.	1
entries not in dmperm blocks	1,859
explicit zero entries	0
nonzero pattern symmetry	0%
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	M. Hohn
editor	T. Davis
date	2003
kind	materials problem
2D/3D problem?	yes

Additional fields	size and type
b	full 16428-by-1

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	8,300,663	13,738,475	666,919
Cholesky flop count	1.5e+10	2.9e+10	7.9e+07
nnz(L+U), no partial pivoting	16,584,898	27,460,522	1,319,269
nnz(V) for QR, upper bound nnz(L) for LU	766,230	645,015	618,232
nnz(R) for QR, upper bound nnz(U) for LU	1,452,963	1,280,606	1,218,572

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.