Matrix properties
number of rows	103,430
number of columns	103,430
nonzeros	1,205,518
structural full rank?	yes
structural rank	103,430
# of blocks from dmperm	4,059
# strongly connected comp.	4,059
entries not in dmperm blocks	8,112
explicit zero entries	916,032
nonzero pattern symmetry	100%
numeric value symmetry	17%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	IBM
editor	O. Schenk
date	2003
kind	semiconductor device problem
2D/3D problem?	yes

Additional fields	size and type
b	full 103430-by-1

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	116,910,584	51,836,850	49,984,964
Cholesky flop count	4.1e+11	1.1e+11	1.0e+11
nnz(L+U), no partial pivoting	233,717,738	103,570,270	99,874,610
nnz(V) for QR, upper bound nnz(L) for LU	234,691,273	110,787,006	99,847,754
nnz(R) for QR, upper bound nnz(U) for LU	434,672,550	196,095,952	178,990,418

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 916032 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.