Matrix properties
number of rows	2,870
number of columns	2,870
nonzeros	23,754
structural full rank?	yes
structural rank	2,870
# of blocks from dmperm	180
# strongly connected comp.	180
entries not in dmperm blocks	0
explicit zero entries	0
nonzero pattern symmetry	symmetric
numeric value symmetry	100%
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'))	65,420	66,021	65,420
Cholesky flop count	2.5e+06	2.4e+06	2.5e+06
nnz(L+U), no partial pivoting	127,970	129,172	127,970
nnz(V) for QR, upper bound nnz(L) for LU	100,227	95,900	98,824
nnz(R) for QR, upper bound nnz(U) for LU	187,313	180,035	186,069

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.