step-2, a dealii code which enumerates the degrees of freedom in a finite element problem, and then renumbers them to reduce the bandwidth of the corresponding linear system.
The deal.II library is copyrighted by the deal.II authors. This term refers to the people listed in the file AUTHORS and in the authors list on the webpage.
The deal.II library is free software; it is licensed under the GNU Lesser General Public License v2.1 or later. The deal.II authors are in the process of relicensing the library to be dual-licensed under the Apache License 2.0 with LLVM Exception and the GNU Lesser General Public License v2.1 or later.