import mpi4py.MPI as MPI
 
def main():
    comm = MPI.COMM_WORLD
    rank = comm.Get_rank()
    size = comm.Get_size()
 
    data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]  # Заданий масив
 
    local_sum = sum(data[rank::size])  # Обчислення локальної суми
 
    global_sum = comm.reduce(local_sum, op=MPI.SUM, root=0)  # Збір загальної суми на процесі 0
 
    if rank == 0:
        average = global_sum / len(data)
        print("Середнє арифметичне:", average)
 
if __name__ == "__main__":
    main()
 

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