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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
/* This test checks for proper error checking in MPI_Reduce_local, especially
* handling of MPI_IN_PLACE and buffer aliasing. */
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include "mpi.h"
#include "mpitest.h"
/* quick cop-out for now */
#define check(c_) assert(c_)
int main(int argc, char *argv[])
{
int err, errs = 0, i, errclass;
int rank = -1, size = -1;
int *buf;
int *recvbuf;
MTest_Init(&argc, &argv);
MPI_Comm_set_errhandler(MPI_COMM_WORLD, MPI_ERRORS_RETURN);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
buf = malloc(size * sizeof(int));
recvbuf = malloc(size * sizeof(int));
for (i = 0; i < size; ++i) {
buf[i] = i;
recvbuf[i] = -1;
}
/* check valid reduce_local does not fail */
err = MPI_Reduce_local(buf, recvbuf, size, MPI_INT, MPI_SUM);
check(err == MPI_SUCCESS);
/* ERR: check inbuf==MPI_IN_PLACE */
err = MPI_Reduce_local(MPI_IN_PLACE, recvbuf, size, MPI_INT, MPI_SUM);
check(err != MPI_SUCCESS);
MPI_Error_class(err, &errclass);
check(errclass == MPI_ERR_BUFFER);
/* ERR: check inoutbuf==MPI_IN_PLACE */
err = MPI_Reduce_local(buf, MPI_IN_PLACE, size, MPI_INT, MPI_SUM);
check(err != MPI_SUCCESS);
MPI_Error_class(err, &errclass);
check(errclass == MPI_ERR_BUFFER);
/* ERR: check buffer aliasing is caught */
err = MPI_Reduce_local(recvbuf, recvbuf, size, MPI_INT, MPI_SUM);
check(err != MPI_SUCCESS);
MPI_Error_class(err, &errclass);
check(errclass == MPI_ERR_BUFFER);
free(recvbuf);
free(buf);
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
|
