How to install openmpi?

[dragen1860]

Hi, thanks for your great job. However, i found it's complex to install openmpi, could you give some simple instructions?

[seongkyun]

• go to https://www.open-mpi.org/software/ompi/v3.1/ and download openmpi-3.1.2.tar.gz
• mkdir ~/openmpi and move openmpi-3.1.2.tar.gz file to that folder
• tar -zxvf openmpi-3.1.2.tar.gz to unzip file
• cd openmpi-3.1.2/
• ./configure --prefix=$HOME/openmpi to configure and compile
• make -j8 all to make (may taks 5~10min)
• make install to install
• vim ~/.bashrc to set the path
• add lines
  • export PATH=$HOME/openmpi/bin:$PATH
  • export LD_LIBRARY_PATH=$HOME/openmpi/lib:$LD_LIBRARY_PATH
• save, exit and source ~/.bashrc
• mpiexec --version and mpirun --version to check the installation

done.