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
|
/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "mpi.h"
#include <stdio.h>
#include "mpitest.h"
int main(int argc, char *argv[])
{
int errs = 0;
int newrank, merr, rank;
int index[2], edges[2];
MTest_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
/* Graph map where there are no nodes for this process */
MPI_Comm_set_errhandler(MPI_COMM_WORLD, MPI_ERRORS_RETURN);
/* Here is a singleton graph, containing only the root process */
index[0] = 0;
edges[0] = 0;
merr = MPI_Graph_map(MPI_COMM_WORLD, 1, index, edges, &newrank);
if (merr) {
errs++;
printf("Graph map returned an error\n");
MTestPrintError(merr);
}
if (rank != 0 && newrank != MPI_UNDEFINED) {
errs++;
printf("Graph map with no local nodes did not return MPI_UNDEFINED\n");
}
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
|
