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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "mpitest.h"
#include <stdio.h>
#include <string.h>
#define MTEST_LARGE_PORT_NAME
#ifdef MTEST_LARGE_PORT_NAME
#define PORT_SIZE 4096
#define INIT_PORT_INFO(info) \
do { \
MPI_Info_create(&(info)); \
MPI_Info_set(info, "port_name_size", "4096"); \
} while (0)
#define FREE_PORT_INFO(info) MPI_Info_free(&(info))
#else
#define PORT_SIZE MPI_MAX_PORT_NAME
#define INIT_PORT_INFO(info) do {info = MPI_INFO_NULL;} while (0)
#define FREE_PORT_INFO(info) do { } while (0)
#endif /* MTEST_LARGE_PORT_NAME */
int main(int argc, char *argv[])
{
int errs = 0;
char serv_name[256] = "MyTest";
char port_name[PORT_SIZE];
MPI_Info port_info;
int rank;
MPI_Comm inter_comm;
MTest_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
INIT_PORT_INFO(port_info);
if (rank == 0) {
MPI_Open_port(port_info, port_name);
MPI_Publish_name(serv_name, port_info, port_name);
MPI_Barrier(MPI_COMM_WORLD);
MPI_Comm_accept(port_name, MPI_INFO_NULL, 0, MPI_COMM_SELF, &inter_comm);
MPI_Unpublish_name(serv_name, MPI_INFO_NULL, port_name);
} else {
MPI_Barrier(MPI_COMM_WORLD);
MPI_Lookup_name(serv_name, port_info, port_name);
MPI_Comm_connect(port_name, MPI_INFO_NULL, 0, MPI_COMM_SELF, &inter_comm);
}
MPI_Comm_disconnect(&inter_comm);
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
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