PoisFFT

Free parallel fast Poisson solver. Requires FFTW3 and optionally PFFT.

fortran-list

Generic list implementation in Fortran 2003. Uses unlimited polymorphics or parametric polymorphism.

Fortran---CGAL-polyhedra

Fortran bindings to the CGAL library to query whether a point is inside of a polyhedron and their distance.

Fortran-RefCount

Simple reference counting for Fortran

euler1d

Fortran 95 code for solving compressible euler equations in 1D (quite old)