if (myid == server) {   /* I am the rand server */
        do {
            MPI_Recv(&request, 1, MPI_INT, MPI_ANY_SOURCE, REQUEST, world, &status);
            if (request) {
                    int even = (status.MPI_SOURCE % 2) == 0;

                    int size_to_send = even ? CHUNKSIZE2 : CHUNKSIZE;
                    for (i = 0; i < size_to_send; i++) {
                        rands[i] = random() % INT_MAX;
                    }

//                  fprintf(stderr, "Send to %d with size %d\n", status.MPI_SOURCE, size_to_send);
                    if(even)
                        MPI_Send(rands, size_to_send, MPI_INT, status.MPI_SOURCE, REPLY, workers_even);
                    else
                        MPI_Send(rands, size_to_send, MPI_INT, status.MPI_SOURCE, REPLY, workers_odd);

            }
        } while(request > 0);
    } else {            /* I am a worker process */