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Help Center/ High Performance Computing/ User Guide/ Typical Applications in the BMS Scenario/ Installing and Using MPIs (x86 BMS)/ Intel MPI

Intel MPI

Updated on 2022-05-09 GMT+08:00

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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

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
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
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.
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

Parent topic: Installing and Using MPIs (x86 BMS)

Previous topic: Spectrum MPI

Next topic: Platform MPI

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