pastebin

from mpi4py import MPI

import numpy as np

 

comm = MPI.COMM_WORLD

size = comm.Get_size()

rank = comm.Get_rank()

 

data = 100*rank #date locale de trimis

 

 

if rank != 0:

    src = rank-1

else:

    src = size-1

   

if rank != size-1:

    dst = rank+1

else:

    dst = 0

 

 

if rank%2 == 0:    

    comm.send(data,dest=dst)

    data1 = comm.recv(source=src)

else:

    data1 = comm.recv(source=src)

    comm.send(data,dest=dst)

   

print(data1)