Please use this mailing list for discussion MPICH related questions only. If you have general parallel computing questions, please ask it on stack overflow or other generic discussion Forums. -- Huiwei Lu On Sat, Mar 7, 2015 at 5:56 AM, Chafik sanaa <[email protected]> wrote:

when I execute my program nothing appears, it must use a parallelism even for reading our text file !? this is my code: #include <stdio.h> #include <stdlib.h> #include "mpi.h" #define MAX_LIGNE 40 #define MAX_COL 40 #define Matrice_adjacence "fichier22.txt" #define Matrice_General "fichier111.txt" typedef int Matrice[MAX_LIGNE][MAX_COL]; int main(int argc, char** argv) { int nbr_proc, rang_proc; Matrice E; int m1, n1; FILE * aLire = fopen(Matrice_General, "r"); if (aLire == NULL) { printf("No file"); } else { fscanf(aLire, "%d%d", &n1, &m1); for (int i = 0; i < n1; i++) { for (int j = 0; j < m1; j++) fscanf(aLire, "%d", &E[i][j]); fscanf(aLire, "\n"); } } fclose(aLire); MPI_Init(&argc, &argv); MPI_Comm_rank(MPI_COMM_WORLD, &rang_proc); MPI_Comm_size(MPI_COMM_WORLD, &nbr_proc);

printf("Hi from proc %d ", rang_proc);

MPI_Barrier(MPI_COMM_WORLD); MPI_Finalize(); }

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