Matrix properties
number of rows	34,454
number of columns	34,454
nonzeros	190,224
structural full rank?	yes
structural rank	34,454
# of blocks from dmperm	4,450
# strongly connected comp.	4,430
entries not in dmperm blocks	21,205
explicit zero entries	25,638
nonzero pattern symmetry	0%
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	P. Hollinger
editor	T. Davis
date	2001
kind	economic problem
2D/3D problem?	no

Additional fields	size and type
b	full 34454-by-1
x	full 34454-by-1

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	1,781,413	2,064,673	1,918,791
Cholesky flop count	6.3e+08	8.3e+08	8.0e+08
nnz(L+U), no partial pivoting	3,528,372	4,094,892	3,824,333
nnz(V) for QR, upper bound nnz(L) for LU	1,999,877	1,478,764	1,335,370
nnz(R) for QR, upper bound nnz(U) for LU	5,520,413	4,377,487	3,902,222

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 25638 explicit zero entries.

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.