Installing OpenMPI 4 on Ubuntu (Mint)

sudo mkdir /opt/openmpi
sudo chown user:group /opt/openmpi
wget https://download.open-mpi.org/release/open-mpi/v4.0/openmpi-4.0.0.tar.gz
tar -xvf open*.gz

rm open*.gz
mv /opt/openmpi/open*/* /opt/openmpi

./configure –prefix=”/opt/openmpi”

make && sudo make install

echo ‘export PATH=$PATH:”/opt/openmpi/bin”‘ >> ~/.bashrc
echo ‘export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:”/opt/openmpi/bin”‘ >> ~/.bashrc
echo ‘export PATH=$PATH:”/opt/openmpi/bin”‘ >> ~/.bash_profile
echo ‘export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:”/opt/openmpi/lib”‘ >> ~/.bash_profile