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/*
* Copyright (C) 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_MAX operations on optional 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.
*/
int main(int argc, char *argv[])
{
int errs = 0;
int rank, size;
MPI_Comm comm;
char cinbuf[3], coutbuf[3];
signed char scinbuf[3], scoutbuf[3];
unsigned char ucinbuf[3], ucoutbuf[3];
MTest_Init(&argc, &argv);
comm = MPI_COMM_WORLD;
MPI_Comm_rank(comm, &rank);
MPI_Comm_size(comm, &size);
#ifndef USE_STRICT_MPI
/* char */
MTestPrintfMsg(10, "Reduce of MPI_CHAR\n");
cinbuf[0] = 1;
cinbuf[1] = 0;
cinbuf[2] = rank;
coutbuf[0] = 0;
coutbuf[1] = 1;
coutbuf[2] = 1;
MPI_Reduce(cinbuf, coutbuf, 3, MPI_CHAR, MPI_MAX, 0, comm);
if (rank == 0) {
if (coutbuf[0] != 1) {
errs++;
fprintf(stderr, "char MAX(1) test failed\n");
}
if (coutbuf[1] != 0) {
errs++;
fprintf(stderr, "char MAX(0) test failed\n");
}
if (size < 128 && coutbuf[2] != size - 1) {
errs++;
fprintf(stderr, "char MAX(>) test failed\n");
}
}
#endif /* USE_STRICT_MPI */
/* signed char */
MTestPrintfMsg(10, "Reduce of MPI_SIGNED_CHAR\n");
scinbuf[0] = 1;
scinbuf[1] = 0;
scinbuf[2] = rank;
scoutbuf[0] = 0;
scoutbuf[1] = 1;
scoutbuf[2] = 1;
MPI_Reduce(scinbuf, scoutbuf, 3, MPI_SIGNED_CHAR, MPI_MAX, 0, comm);
if (rank == 0) {
if (scoutbuf[0] != 1) {
errs++;
fprintf(stderr, "signed char MAX(1) test failed\n");
}
if (scoutbuf[1] != 0) {
errs++;
fprintf(stderr, "signed char MAX(0) test failed\n");
}
if (size < 128 && scoutbuf[2] != size - 1) {
errs++;
fprintf(stderr, "signed char MAX(>) test failed\n");
}
}
/* unsigned char */
MTestPrintfMsg(10, "Reduce of MPI_UNSIGNED_CHAR\n");
ucinbuf[0] = 1;
ucinbuf[1] = 0;
ucinbuf[2] = rank;
ucoutbuf[0] = 0;
ucoutbuf[1] = 1;
ucoutbuf[2] = 1;
MPI_Reduce(ucinbuf, ucoutbuf, 3, MPI_UNSIGNED_CHAR, MPI_MAX, 0, comm);
if (rank == 0) {
if (ucoutbuf[0] != 1) {
errs++;
fprintf(stderr, "unsigned char MAX(1) test failed\n");
}
if (ucoutbuf[1]) {
errs++;
fprintf(stderr, "unsigned char MAX(0) test failed\n");
}
if (size < 256 && ucoutbuf[2] != size - 1) {
errs++;
fprintf(stderr, "unsigned char MAX(>) test failed\n");
}
}
#ifdef HAVE_LONG_DOUBLE
{
long double ldinbuf[3], ldoutbuf[3];
/* long double */
MTEST_VG_MEM_INIT(ldinbuf, 3 * sizeof(ldinbuf[0]));
ldinbuf[0] = 1;
ldinbuf[1] = 0;
ldinbuf[2] = rank;
ldoutbuf[0] = 0;
ldoutbuf[1] = 1;
ldoutbuf[2] = 1;
if (MPI_LONG_DOUBLE != MPI_DATATYPE_NULL) {
MTestPrintfMsg(10, "Reduce of MPI_LONG_DOUBLE\n");
MPI_Reduce(ldinbuf, ldoutbuf, 3, MPI_LONG_DOUBLE, MPI_MAX, 0, comm);
if (rank == 0) {
if (ldoutbuf[0] != 1) {
errs++;
fprintf(stderr, "long double MAX(1) test failed\n");
}
if (ldoutbuf[1] != 0.0) {
errs++;
fprintf(stderr, "long double MAX(0) test failed\n");
}
if (ldoutbuf[2] != size - 1) {
errs++;
fprintf(stderr, "long double MAX(>) test failed\n");
}
}
}
}
#endif /* HAVE_LONG_DOUBLE */
#ifdef HAVE_LONG_LONG
{
long long llinbuf[3], lloutbuf[3];
/* long long */
llinbuf[0] = 1;
llinbuf[1] = 0;
llinbuf[2] = rank;
lloutbuf[0] = 0;
lloutbuf[1] = 1;
lloutbuf[2] = 1;
if (MPI_LONG_LONG != MPI_DATATYPE_NULL) {
MTestPrintfMsg(10, "Reduce of MPI_LONG_LONG\n");
MPI_Reduce(llinbuf, lloutbuf, 3, MPI_LONG_LONG, MPI_MAX, 0, comm);
if (rank == 0) {
if (lloutbuf[0] != 1) {
errs++;
fprintf(stderr, "long long MAX(1) test failed\n");
}
if (lloutbuf[1] != 0) {
errs++;
fprintf(stderr, "long long MAX(0) test failed\n");
}
if (lloutbuf[2] != size - 1) {
errs++;
fprintf(stderr, "long long MAX(>) test failed\n");
}
}
}
}
#endif /* HAVE_LONG_LONG */
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
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