$ wget https://download.open-mpi.org/release/open-mpi/v2.1/openmpi-2.1.6.tar.gz $ tar xvf openmpi-2.1.6.tar.gz $ cd openmpi-2.1.6 $ mkdir build $ cd build $ ../configure --prefix=/opt/openmpi-2.1.6 CC=gcc CXX=g++ --enable-mpi-cxx $ make -j $ make install