Made the hello world more interesting.

Jonathan Rocher · Jonathan Rocher · commit b729e90e2299 · 2012-11-06T07:06:16.000-08:00
diff --git a/MPI/hello_world.py b/MPI/hello_world.py
@@ -4,6 +4,6 @@
 """
 
 from mpi4py import MPI
-import os
-
-print 'Hello, World from %s!' % os.getpid()
+comm = MPI.COMM_WORLD
+myrank = comm.Get_rank()
+print 'Hello, World from', myrank
