Software
AFEPack
APDEC (An Algorithmic and Framework for Applied PDE's)
CLAWPACK
CRUNCH
FEATFLOW
Finite Element and Solution Tools (FEAST)
Fluent
GeoFEM
PseudoPack, a spectral method package
SpecPack, a spectral method package
Triangle Mesh Generation Software
Trilinos: parallel solver algorithms at Sandia
UG