new_contents: #!/usr/bin/env python
  
  import numpy
  from mpi4py import MPI
  import sys
  from mpi4py.MPI import ANY_SOURCE
  
  comm = MPI.COMM_WORLD
  rank = comm.Get_rank()
  size = comm.Get_size()
  
  n = float(sys.argv[1])       
  randNum = numpy.zeros(n)   
  
  if rank ==0:
          print "Process", rank, "before receiving has the numbers", randNum
          for i in range(1,size):
                  comm.Recv(randNum,source = ANY_SOURCE, tag = 3)
                  print "Process",i , "received the numbers", randNum
  else:
          randNum = numpy.random.random_sample(n)
          print "Process", rank, "before sending has the numbers", randNum
          comm.Send(randNum, dest=0, tag = 5)
  
subject: Create code_1.py