This work was contributed by Oliver Wackerl (owackerl atsign gmx.net) This allows use of MPI to parallelize runs. ---- Using MPI feature of Fasthenry Under Fedora 22: install openmpi (dnf openmpi openmpi-devel) module load mpi/openmpi then just run the make in src/fasthenry folder and it autoselects the MPI built run the program in paralell, e.g. in examples folder mpiexec -n 4 ../fasthenry 30pin.inp Please be aware there is a limitation running it distributed: It assumes same architecture, (processor types / endiness / compiler settings / memory aligment / ...)