Matrix properties
number of rows	14,270
number of columns	14,270
nonzeros	305,750
structural full rank?	yes
structural rank	14,270
# of blocks from dmperm	1,564
# strongly connected comp.	31
entries not in dmperm blocks	19,612
explicit zero entries	2,108
nonzero pattern symmetry	1%
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	J. Mallya
editor	T. Davis
date	1994
kind	chemical process simulation problem
2D/3D problem?	no

Additional fields	size and type
b	full 14270-by-1

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	21,108,917	15,458,919	653,980
Cholesky flop count	8.5e+10	3.4e+10	5.1e+07
nnz(L+U), no partial pivoting	42,203,564	30,903,568	1,313,302
nnz(V) for QR, upper bound nnz(L) for LU	650,912	731,790	415,379
nnz(R) for QR, upper bound nnz(U) for LU	1,338,115	1,569,753	943,804

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 2108 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.