[mpich-discuss] In MPI for multiple process scanf taking input only once

[Jeff Hammond]

Just read all variables from a file. I don't see how you can read from
stdin on every proc anyways.

Jeff

Sent from my iPhone

On Sep 15, 2013, at 4:48 AM, Mahesh Doijade <maheshdoijade at gmail.com> wrote:

I am trying to write MPI code with scanf which will take input for all
process individually, but only one process taking the input from user and
others assign garbage value to that variable. The program is as below

#include <stdlib.h>#include <stdio.h>#include "mpi.h"#include<string.h>
int main(int argc, char* argv[]) {int i, size, rank;int arr;
MPI_Init(&argc, &argv);
MPI_Comm_size(MPI_COMM_WORLD, &size);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
printf("Enter the number\n");
scanf("%d",&i);

printf("%d\n",i);
MPI_Finalize();
exit(0);}



-- 

Regards,
-- Mahesh Doijade





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