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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "mpi.h"
#include <stdio.h>
#include <stdlib.h>
#include "mpitest.h"
static char MTEST_Descrip[] = "";
int main(int argc, char *argv[])
{
int errs = 0, err;
int rank, size, source, dest;
int minsize = 2, count;
MPI_Comm comm;
MPI_Status status;
MTestDatatype sendtype, recvtype;
MTest_Init(&argc, &argv);
/* The following illustrates the use of the routines to
* run through a selection of communicators and datatypes.
* Use subsets of these for tests that do not involve combinations
* of communicators, datatypes, and counts of datatypes */
while (MTestGetIntracommGeneral(&comm, minsize, 1)) {
if (comm == MPI_COMM_NULL)
continue;
/* Determine the sender and receiver */
MPI_Comm_rank(comm, &rank);
MPI_Comm_size(comm, &size);
source = 0;
dest = size - 1;
/* To improve reporting of problems about operations, we
* change the error handler to errors return */
MPI_Comm_set_errhandler(comm, MPI_ERRORS_RETURN);
MTEST_DATATYPE_FOR_EACH_COUNT(count) {
while (MTestGetDatatypes(&sendtype, &recvtype, count)) {
if (rank == source) {
sendtype.InitBuf(&sendtype);
err = MPI_Send(sendtype.buf, sendtype.count, sendtype.datatype, dest, 0, comm);
if (err) {
errs++;
MTestPrintError(err);
}
MTestFreeDatatype(&sendtype);
} else if (rank == dest) {
recvtype.InitBuf(&recvtype);
err = MPI_Recv(recvtype.buf, recvtype.count,
recvtype.datatype, source, 0, comm, &status);
if (err) {
errs++;
fprintf(stderr, "Error with communicator %s and datatype %s\n",
MTestGetIntracommName(), MTestGetDatatypeName(&recvtype));
MTestPrintError(err);
}
err = MTestCheckRecv(&status, &recvtype);
if (err) {
errs += errs;
}
MTestFreeDatatype(&recvtype);
}
}
}
MTestFreeComm(&comm);
}
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
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