1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mpi.h"
int main(int argc, char **argv)
{
char *p;
int errs = 0, toterrs;
int size, rank;
MPI_Init(&argc, &argv);
MPI_Comm_size(MPI_COMM_WORLD, &size);
if (size != 2) {
errs++;
printf("Communicator size is %d, should be 2\n", size);
}
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
p = getenv("TMP_ENV_VAR");
if (!p) {
errs++;
printf("Did not find TMP_ENV_VAR\n");
} else if (strcmp(p, "1") != 0) {
errs++;
printf("Value of TMP_ENV_VAR was %s, expected 1\n", p);
}
MPI_Reduce(&errs, &toterrs, 1, MPI_INT, MPI_SUM, 0, MPI_COMM_WORLD);
if (rank == 0) {
if (toterrs == 0) {
printf(" No Errors\n");
} else {
printf(" Found %d errors\n", toterrs);
}
}
MPI_Finalize();
return 0;
}
|
