test whether an MPI implementation allows input from stdin

/* stdin_test.c -- test whether an MPI implementation allows input from
* stdin
*
* Input: an int
* Output: prompt for input and int read (if stdin is OK)
*
* See Chap 8, p. 154 in PPMPI.
*/
#include
#include "mpi.h"

main(int argc, char* argv[]) {
int x;

MPI_Init(&argc, &argv);

printf("Enter an integer\n");
fflush(stdout);
scanf("%d", &x);
printf("We read x = %d\n", x);
fflush(stdout);

MPI_Finalize();
}