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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"
#include "mpithreadtest.h"
/*
static char MTEST_Descrip[] = "Send to self in a threaded program";
*/
MTEST_THREAD_RETURN_TYPE send_thread(void *p);
MTEST_THREAD_RETURN_TYPE send_thread(void *p)
{
int rank;
char buffer[100];
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Send(buffer, sizeof(buffer), MPI_CHAR, rank, 0, MPI_COMM_WORLD);
return MTEST_THREAD_RETVAL_IGN;
}
int main(int argc, char *argv[])
{
int rank, size;
int provided;
char buffer[100];
MPI_Status status;
MTest_Init_thread(&argc, &argv, MPI_THREAD_MULTIPLE, &provided);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
if (provided != MPI_THREAD_MULTIPLE) {
if (rank == 0) {
printf
("MPI_Init_thread must return MPI_THREAD_MULTIPLE in order for this test to run.\n");
fflush(stdout);
}
return -1;
}
MTest_Start_thread(send_thread, NULL);
MPI_Probe(MPI_ANY_SOURCE, MPI_ANY_TAG, MPI_COMM_WORLD, &status);
MPI_Recv(buffer, sizeof(buffer), MPI_CHAR, rank, 0, MPI_COMM_WORLD, &status);
MTest_Join_threads();
MTest_Finalize(0);
return 0;
}
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