2.1.3 Numerical software

FEMLISP can make use of the following libraries:

• BLAS/LAPACK libraries
• The sparse direct solvers UMFPACK and/or SuperLU
• The 2D mesh generator Triangle by R. M. Shewchuk.
• The 3D mesh generator Tetgen by Hang Si
• An MPI implementation

Availability of the BLAS/LAPACK libraries as well as the sparse direct solvers can improve performance, although large parts of FEMLISP will work without them. In the same way, most of the FEMLISP demos are concerned with model problems for which no advanced mesh generation is necessary. Finally, MPI is needed only when you want to run FEMLISP as a distributed application.