Matrix Market Database

• Relational database: ASCII files Set.db, Matrix.db, Generator.db

• accessed directly by search tool: CGI program in C (ad hoc)

• Perl scripts generate set, generator, matrix home pages from database, as well as other pages of lists

id	NOS5
set	LANPRO
collctn	Harwell-Boeing
problem	linear system
field	real
symm	symmetric positive definite
struct	sparse
storage	sparse assembled
shape	square
rows	468
cols	468
nnzero	2820
nrhs	0
exact	0
guess	0
for	3 story building with attached tower. 
	Each beam is modeled as a finite  
	element approximation to biharmonic 
	operator with one end free and one 
	end fixed. 80 elements with 3 DOF 
	per node.