• OPT_INST: Where to install optional libraries
• NP: Number of available processors to compile
• MPI_HOME: home of mpi directory
• MKLROOT: home of MKL

It is expected that the following variables are picked up, and that all libraries are compiled with the same compilers:

• CC: current c compiler
• CXX: current c++ compiler
• FC: current fortran compiler
• F77: current fortran77 compiler
• F90: current fortran90 compiler

OpenMPI modules on most clusters export these to mpicc, mpic++, etc. Make sure it happens on your configuration too...

Copy in the directory $OPT_INST the file external.conf, and source it from your .bashrc or .profile (whichever is that your system uses).

If you already set MPI, then start with

• petsc.sh

If you don't, then use

• petsc-serial.sh

This will also download openmpi and attempt to configure it for you.

At every installation step, use a new terminal. This will ensure that external.conf picks up all new libraries. Next step is

• slepc.sh

The following can all be done in parallel:

• sundials.sh
• trilinos.sh
• oce.sh
• arpack.sh
• p4est.sh
• assimp.sh

Start another terminal. Then proceed with

• dealii.sh
• deal2lkit.sh

If everything went well, then you should have in summary.log of deal.II and deal2lkit almost all external libraries enabled.