Matrix properties
number of rows	97,569
number of columns	97,569
nonzeros	5,156,379
structural full rank?	yes
structural rank	97,569
# 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?	no

author	Y. Zhou, Y. Saad, M. Tiago, J. Chelikowsky
editor	T. Davis
date	2005
kind	theoretical/quantum chemistry problem
2D/3D problem?	no

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	1,203,023,767	436,195,658
Cholesky flop count	2.4e+13	3.6e+12
nnz(L+U), no partial pivoting	2.405950e+09	872,293,747
nnz(V) for QR, upper bound nnz(L) for LU	1,267,654,373	802,220,714
nnz(R) for QR, upper bound nnz(U) for LU	2,120,162,332	1,429,766,723

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.