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openmpi/orte/test/mpi/accept.c

44 строки
906 B
C

/* -*- C -*-
*
* $HEADER$
*
* Test of connect/accept - the accept (server) side
*/
#include <stdio.h>
#include "mpi.h"
int main(int argc, char* argv[])
{
int rank, size;
MPI_Info info;
char port[MPI_MAX_PORT_NAME];
MPI_Comm client;
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
printf("Hello, World, I am %d of %d\n", rank, size);
MPI_Info_create(&info);
MPI_Info_set(info, "ompi_global_scope", "true");
if (0 == rank) {
MPI_Open_port(MPI_INFO_NULL, port);
MPI_Publish_name("test-pub", info, port);
MPI_Comm_accept(port, MPI_INFO_NULL, 0, MPI_COMM_WORLD, &client);
}
MPI_Barrier(client);
if (0 == rank) {
MPI_Unpublish_name("test-pub", info, port);
MPI_Close_port(port);
}
MPI_Finalize();
return 0;
}