HYPRE - http://www.llnl.gov/casc/hypre/ HYPRE is a library of high performance preconditioners and solvers featuring multigrid methods for the solution of large, sparse linear systems of equations on massively parallel computers. Documentation can be found at https://hypre.readthedocs.io/en/latest/. To install HYPRE, please see either the documentation or the file [INSTALL.md](./INSTALL.md). An overview of the HYPRE release history can be found in the file [CHANGELOG](./CHANGELOG). We appreciate feedback from users of this package. Please submit comments, suggestions, and issue reports to hypre-support@llnl.gov. Legal stuff (copyright, disclaimer, licensing restrictions, etc.) can be found in the file [COPYRIGHT](./COPYRIGHT). HYPRE is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License (as published by the Free Software Foundation) version 2.1 dated February 1999.