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(Optional) Configuring a Shared Directory

If a shared directory or file system exists in the system and OpenMPI or IOR has been installed in the shared directory or file system, skip this step.

Procedure

  1. Use PuTTY to log in to the server where OpenMPI and IOR are installed as the root user.
  2. Run the following command on the server where OpenMPI and IOR are installed:
    1. vi /etc/exports
    2. Press i to enter the editing mode and add the following content to the end of the /etc/exports file:
      /home *(rw,no_root_squash,sync)
    3. Press Esc, enter :wq!, and press Enter to save the file and exit.
    4. systemctl restart nfs
    5. systemctl enable nfs
  3. Use PuTTY to log in to other servers as the root user.
  4. Run the following commands on other test nodes to share the directory with other test nodes:

    mkdir /home/OpenMPI

    mkdir /home/ior-master

    mount -t nfs NFS server IP address:/home/OpenMPI /home/OpenMPI

    mount -t nfs NFS server IP address:/home/io-master /home/io-master