cd /path/to/mpiP tar xf mpiP-3.5.tar.gz cd mpiP-3.5
./configure CC=mpicc F77=mpifort CXX=mpicxx --build=aarch64-unknown-linux-gnu --prefix=/path/to/mpiP/
make make install
export LD_LIBRARY_PATH=/path/to/mpiP/lib:$LD_LIBRARY_PATH