Athena Cluster

Hello MPI in Python

Here are the steps, briefly, for running a MPI Python Script on Athena

1. log into athena.brynmawr.edu
2. find out which /data path you have a shared directory (either /data1, or /data2)
3. create a python program in your /dataN/userid/ directory
4. create a PBS script
5. submit the PBS script
6. check on status
7. see the results

Step 3: Create a Python script

# More tutorials available at:
# http://mpi4py.scipy.org/docs/usrman/tutorial.html

from mpi4py import MPI
import platform

comm = MPI.COMM_WORLD
rank = comm.Get_rank()
size = comm.Get_size()
machine = platform.node()

print("Hello MPI from %s %d of %d" % (machine, rank, size))