Matrix properties
number of rows	5,773
number of columns	5,773
nonzeros	71,701
structural full rank?	yes
structural rank	5,773
# of blocks from dmperm	212
# strongly connected comp.	212
entries not in dmperm blocks	104
explicit zero entries	104
nonzero pattern symmetry	symmetric
numeric value symmetry	50%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	A. Baggag, Y. Saad
editor	A. Baggag, Y. Saad
date	1994
kind	computational fluid dynamics problem
2D/3D problem?	yes

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	175,848	183,674	176,522
Cholesky flop count	9.3e+06	9.4e+06	9.3e+06
nnz(L+U), no partial pivoting	345,923	361,575	347,375
nnz(V) for QR, upper bound nnz(L) for LU	239,089	245,537	246,292
nnz(R) for QR, upper bound nnz(U) for LU	457,850	459,507	446,050

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 104 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.