mfem

Free, lightweight, scalable C++ library for FEM.
http://www.mfem.org/

Current versions
3.3

mfem requires the following formulae to be installed:
superlu_dist 5.1.0_3 Distributed LU factorization for large linear systems

Recent formula history

Viktor Szakats mfem: secure url(s)
Geoffrey Oxberry mfem 3.3

Formula code at GitHub