Installation of OpenMPI

Installation of OpenMPI

Availability and Restrictions

• Brief history of OpenMPI

• OpenMPI

Download the tarball of OpenMPI

Use wget or curl tool to download the tarball source from its official website to your Linux

• wget

wget https://download.open-mpi.org/release/open-mpi/v3.1/openmpi-3.1.3.tar.gz

• curl

curl -O https://download.open-mpi.org/release/open-mpi/v3.1/openmpi-3.1.3.tar.gz

Installation on Global (shared) directory for root/sudo

1. Install gcc compiler using command (skip this step if you have already installed gcc)

yum groupinstall "Development tools"

2. Uncompress the tarball

tar -xzvf openmpi-3.1.3.tar.gz

3. Navigate to OpenMPI folder and setting up compilation configuration for install

cd openmpi-3.1.3

./configure --prefix=/usr/local/

If you want to install other versions, you should define the --prefix to the specific directory, e.g.,

./configure --prefix=/usr/local/openmpi-3.1.3/

3. Install OpenMPI using make command

sudo make all install

After make install is completed, mpirun or orterun executable should be at /usr/local/bin/.

4. Set environment variables for OpenMPI using commands

echo "export PATH=$PATH:/usr/local/bin" >> $HOME/.bashrc

echo "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib" >> $HOME/.bashrc

Otherwise, put the following command into /etc/bashrc (only root/sudo can do), or into $HOME/.bashrc (for user)

export PATH=$PATH:/usr/local/bin

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib

5. Activate resource file

source $HOME/.bashrc

6. Check version of OpenMPI using command

mpirun --version

Installation on Local (in home) directory for user

Procedure is quite similar to installation with root/sudo.

1. Change directory to OpenMPI

cd openmpi-3.1.3

2. Set up configuration.

./configure --prefix="/$HOME/openmpi-3.1.3-local"

3. Compile OpenMPI

make

make install

4. Put the following commands into $HOME/.bashrc

export PATH="$PATH:/$HOME/openmpi-3.1.3-local/bin"

export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/$HOME/openmpi-3.1.3-local/lib/"

5. Activate .bashrc file.

source /$HOME/.bashrc

Error and Fix

If it fails, you can try the following command for setting up configuration and recompile.

./configure --prefix=/usr/local/openmpi-3.1.3 CC=icc CXX=icpc F77=ifort FC=ifort --with-devel-headers --enable-binaries

Rangsiman Ketkaew