Inverse Matrix python3 mpi4py EOFError

Can you help me with this error? Why is that error here? I'm calculating the inverse of matrix. Here is code: import numpy as np from [login to view URL] import inv from [login to view URL] import det from mpi4py import MPI comm = MPI.COMM_WORLD rank = comm.Get_rank() size = comm.Get_size() m = input("Enter number of rows, m = \n") n = input("Enter number of columns, n = \n") if rank==0: matrix = [login to view URL]((m,n)) determinant = [login to view URL]((2)) for i in range (0,m): for j in range(0,n): print("Enter the value for the field: m = ", i+1, ", n = ", j+1,"\n") matrix[i][j] = float(input()) [login to view URL](matrix, dest=1, tag=0) [login to view URL](matrix, dest=2, tag=0) [login to view URL](determinant, source=1, tag=0) [login to view URL](matrix, source=2, tag=0) if(determinant[0]==0): print("There is no inverse matrix since the determinant is 0!") else: print("Inverse matrix:\n",matrix) elif rank==1: matrix = [login to view URL]((m,n)) determinant = [login to view URL]((2)) [login to view URL](matrix, source=0, tag=0) determinant = [login to view URL]([[det(matrix)],[0]]) [login to view URL](determinant, dest=0) elif rank==2: matrix = [login to view URL]((m,n)) [login to view URL](matrix, source=0, tag=0) matrix = inv(matrix) [login to view URL](matrix, dest=0) else: exit()