Matrix properties
number of rows	16,830
number of columns	16,830
nonzeros	2,866,352
structural full rank?	yes
structural rank	16,830
# 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	binary
structure	symmetric
Cholesky candidate?	yes
positive definite?	no

author	A. Ramage
editor	N. Gould, Y. Hu, J. Scott
date	2004
kind	computational fluid dynamics problem
2D/3D problem?	yes

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	17,785,665	11,229,569
Cholesky flop count	2.9e+10	1.0e+10
nnz(L+U), no partial pivoting	35,554,500	22,442,308
nnz(V) for QR, upper bound nnz(L) for LU	21,310,586	16,929,842
nnz(R) for QR, upper bound nnz(U) for LU	47,317,399	35,691,541

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.