/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
*
* (C) 2003 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#include "mpi.h"
#include "mpitestconf.h"
#include <stdio.h>
#include "mpitest.h"
/*
static char MTEST_Descrip[] = "Test MPI_MINLOC operations on datatypes dupported by MPICH";
*/
/*
* This test looks at the handling of char and types that are not required
* integers (e.g., long long). MPICH allows
* these as well. A strict MPI test should not include this test.
*
* The rule on min loc is that if there is a tie in the value, the minimum
* rank is used (see 4.9.3 in the MPI-1 standard)
*/
int main(int argc, char *argv[])
{
int errs = 0;
int rank, size;
MPI_Comm comm;
MTest_Init(&argc, &argv);
comm = MPI_COMM_WORLD;
MPI_Comm_rank(comm, &rank);
MPI_Comm_size(comm, &size);
/* 2 int */
{
struct twoint {
int val;
int loc;
} cinbuf[3], coutbuf[3];
cinbuf[0].val = 1;
cinbuf[0].loc = rank;
cinbuf[1].val = 0;
cinbuf[1].loc = rank;
cinbuf[2].val = (rank & 0x7f);
cinbuf[2].loc = rank;
coutbuf[0].val = 0;
coutbuf[0].loc = -1;
coutbuf[1].val = 1;
coutbuf[1].loc = -1;
coutbuf[2].val = 1;
coutbuf[2].loc = -1;
MPI_Reduce(cinbuf, coutbuf, 3, MPI_2INT, MPI_MINLOC, 0, comm);
if (rank == 0) {
if (coutbuf[0].val != 1 && coutbuf[0].loc != -1) {
errs++;
fprintf(stderr, "2int MINLOC(1) test failed\n");
}
if (coutbuf[1].val != 0 && coutbuf[1].loc != -1) {
errs++;
fprintf(stderr, "2int MINLOC(0) test failed\n");
}
if (coutbuf[2].val != 0 && coutbuf[2].loc != 0) {
errs++;
fprintf(stderr, "2int MINLOC(>) test failed\n");
}
}
}
/* float int */
{
struct floatint {
float val;
int loc;
} cinbuf[3], coutbuf[3];
cinbuf[0].val = 1;
cinbuf[0].loc = rank;
cinbuf[1].val = 0;
cinbuf[1].loc = rank;
cinbuf[2].val = (float) rank;
cinbuf[2].loc = rank;
coutbuf[0].val = 0;
coutbuf[0].loc = -1;
coutbuf[1].val = 1;
coutbuf[1].loc = -1;
coutbuf[2].val = 1;
coutbuf[2].loc = -1;
MPI_Reduce(cinbuf, coutbuf, 3, MPI_FLOAT_INT, MPI_MINLOC, 0, comm);
if (rank == 0) {
if (coutbuf[0].val != 1 && coutbuf[0].loc != -1) {
errs++;
fprintf(stderr, "float-int MINLOC(1) test failed\n");
}
if (coutbuf[1].val != 0 && coutbuf[1].loc != -1) {
errs++;
fprintf(stderr, "float-int MINLOC(0) test failed\n");
}
if (coutbuf[2].val != 0 && coutbuf[2].loc != 0) {
errs++;
fprintf(stderr, "float-int MINLOC(>) test failed\n");
}
}
}
/* long int */
{
struct longint {
long val;
int loc;
} cinbuf[3], coutbuf[3];
cinbuf[0].val = 1;
cinbuf[0].loc = rank;
cinbuf[1].val = 0;
cinbuf[1].loc = rank;
cinbuf[2].val = rank;
cinbuf[2].loc = rank;
coutbuf[0].val = 0;
coutbuf[0].loc = -1;
coutbuf[1].val = 1;
coutbuf[1].loc = -1;
coutbuf[2].val = 1;
coutbuf[2].loc = -1;
MPI_Reduce(cinbuf, coutbuf, 3, MPI_LONG_INT, MPI_MINLOC, 0, comm);
if (rank == 0) {
if (coutbuf[0].val != 1 || coutbuf[0].loc != 0) {
errs++;
fprintf(stderr, "long-int MINLOC(1) test failed\n");
}
if (coutbuf[1].val != 0 || coutbuf[1].loc != 0) {
errs++;
fprintf(stderr, "long-int MINLOC(0) test failed\n");
}
if (coutbuf[2].val != 0 || coutbuf[2].loc != 0) {
errs++;
fprintf(stderr, "long-int MINLOC(>) test failed\n");
}
}
}
/* short int */
{
struct shortint {
short val;
int loc;
} cinbuf[3], coutbuf[3];
cinbuf[0].val = 1;
cinbuf[0].loc = rank;
cinbuf[1].val = 0;
cinbuf[1].loc = rank;
cinbuf[2].val = rank;
cinbuf[2].loc = rank;
coutbuf[0].val = 0;
coutbuf[0].loc = -1;
coutbuf[1].val = 1;
coutbuf[1].loc = -1;
coutbuf[2].val = 1;
coutbuf[2].loc = -1;
MPI_Reduce(cinbuf, coutbuf, 3, MPI_SHORT_INT, MPI_MINLOC, 0, comm);
if (rank == 0) {
if (coutbuf[0].val != 1 || coutbuf[0].loc != 0) {
errs++;
fprintf(stderr, "short-int MINLOC(1) test failed\n");
}
if (coutbuf[1].val != 0 || coutbuf[1].loc != 0) {
errs++;
fprintf(stderr, "short-int MINLOC(0) test failed\n");
}
if (coutbuf[2].val != 0 || coutbuf[2].loc != 0) {
errs++;
fprintf(stderr, "short-int MINLOC(>) test failed\n");
}
}
}
/* double int */
{
struct doubleint {
double val;
int loc;
} cinbuf[3], coutbuf[3];
cinbuf[0].val = 1;
cinbuf[0].loc = rank;
cinbuf[1].val = 0;
cinbuf[1].loc = rank;
cinbuf[2].val = rank;
cinbuf[2].loc = rank;
coutbuf[0].val = 0;
coutbuf[0].loc = -1;
coutbuf[1].val = 1;
coutbuf[1].loc = -1;
coutbuf[2].val = 1;
coutbuf[2].loc = -1;
MPI_Reduce(cinbuf, coutbuf, 3, MPI_DOUBLE_INT, MPI_MINLOC, 0, comm);
if (rank == 0) {
if (coutbuf[0].val != 1 || coutbuf[0].loc != 0) {
errs++;
fprintf(stderr, "double-int MINLOC(1) test failed\n");
}
if (coutbuf[1].val != 0 || coutbuf[1].loc != 0) {
errs++;
fprintf(stderr, "double-int MINLOC(0) test failed\n");
}
if (coutbuf[2].val != 0 || coutbuf[2].loc != 0) {
errs++;
fprintf(stderr, "double-int MINLOC(>) test failed\n");
}
}
}
#ifdef HAVE_LONG_DOUBLE
/* long double int */
{
struct longdoubleint {
long double val;
int loc;
} cinbuf[3], coutbuf[3];
MTEST_VG_MEM_INIT(cinbuf, 3 * sizeof(cinbuf[0]));
cinbuf[0].val = 1;
cinbuf[0].loc = rank;
cinbuf[1].val = 0;
cinbuf[1].loc = rank;
cinbuf[2].val = rank;
cinbuf[2].loc = rank;
coutbuf[0].val = 0;
coutbuf[0].loc = -1;
coutbuf[1].val = 1;
coutbuf[1].loc = -1;
coutbuf[2].val = 1;
coutbuf[2].loc = -1;
if (MPI_LONG_DOUBLE != MPI_DATATYPE_NULL) {
MPI_Reduce(cinbuf, coutbuf, 3, MPI_LONG_DOUBLE_INT, MPI_MINLOC, 0, comm);
if (rank == 0) {
if (coutbuf[0].val != 1 || coutbuf[0].loc != 0) {
errs++;
fprintf(stderr, "long double-int MINLOC(1) test failed\n");
}
if (coutbuf[1].val != 0 || coutbuf[1].loc != 0) {
errs++;
fprintf(stderr, "long double-int MINLOC(0) test failed\n");
}
if (coutbuf[2].val != 0 || coutbuf[2].loc != 0) {
errs++;
fprintf(stderr, "long double-int MINLOC(>) test failed\n");
}
}
}
}
#endif
MTest_Finalize(errs);
return MTestReturnValue(errs);
}