GMap an algorithm for visualizing clusters and relations. In Graphviz
sfdp a force directed algorithm for large scale graph drawing/graph layout, with state of the art overlap removal, in Graphviz .
GraphPlot a function for graph drawing/graph layout in Mathematica 6.0.
FindMinimum a function for nonlinear constrained optimization using nonlinear interior point method, Mathematica 6.0.
LinearProgramming a function for large scale linear programming problems using interior point method, Mathematica 5.0.
FCAT -- a tool for the coverage analysis of FORTRAN.
MONET -- a software which orders a unsymmetric into (single) bordered block diagonal matrix.
JASPA -- how does Java perform compared with C and F90?