Running and Verification

Procedure

1. Use PuTTY to log in to the server as the root user.
2. Verify mpi4py.

   cd /path/to/mpi4py

3. Create an example.
   1. Create a test.py file.

      vim test.py

   2. Press i to enter the insert mode and add the following content to the file:

      from mpi4py import MPI
      comm = MPI.COMM_WORLD
      rank = comm.Get_rank()
      print ('My rank is ', rank)

   3. Press Esc, type :wq!, and press Enter to save the file and exit.
4. Perform the verification.

   mpirun --allow-run-as-root -np 4 python3 test.py

   Information similar to the following is displayed: