Intel MPI

Scenarios

This section describes how to install and use Intel MPI (version l_mpi_2018.0.128 is used as an example) in a BMS cluster.

Perform this operation on each BMS in a cluster.

Prerequisites

Password-free login has been configured between BMSs in the cluster.

Procedure

1. Install Intel MPI.
   1. Download Intel MPI.

      Download path: https://software.intel.com/en-us/intel-mpi-library

   2. Decompress and install Intel MPI.

      For example, run the following commands to decompress and install l_mpi_2018.0.128.tgz:

      # tar -xvf l_mpi_2018.0.128.tgz

      # cd l_mpi_2018.0.128/

      # ./install.sh

      Figure 1 Installed Intel MPI
      

2. Configure environment variables.
   1. Add the following data to ~/.bashrc as a common user:

      export PATH=$PATH:/opt/intel/impi/2018.0.128/bin64

      export LD_LIBRARY_PATH=/opt/intel/impi/2018.0.128/lib64

   2. Run the following command to import environment variables:

      $ source ~/.bashrc

3. Run the following command to check whether environment variables have been imported:

   $ which mpirun

   Figure 2 Successful importing of Intel MPI environment variables
   

   If information shown in Figure 2 is displayed, the environment variables have been imported.

4. Run Intel MPI on a BMS.
   1. Run the following command to generate an executable file:

      $ mpicc hello.c -o hello

   2. Run the following command to run Intel MPI on a BMS:

      $ mpirun -np 2 /home/rhel/hello

      Figure 3 Running Intel MPI on a BMS