Yet Another eXchange Tool  0.9.0
test_mpi_smartdedup.c
/*
* Keywords:
* Maintainer: Jörg Behrens <behrens@dkrz.de>
* Moritz Hanke <hanke@dkrz.de>
* Thomas Jahns <jahns@dkrz.de>
* URL: https://doc.redmine.dkrz.de/yaxt/html/
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of the DKRZ GmbH nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <mpi.h>
#include <yaxt.h>
#include "tests.h"
extern MPI_Comm
xt_mpi_comm_smart_dup(MPI_Comm comm, int *tag_offset);
extern void
xt_mpi_comm_smart_dedup(MPI_Comm *comm, int tag_offset);
static void comms_construct_destruct(MPI_Comm comm_world);
int main(void)
{
// init mpi
xt_mpi_call(MPI_Init(NULL, NULL), MPI_COMM_WORLD);
comms_construct_destruct(MPI_COMM_WORLD);
comms_construct_destruct(MPI_COMM_WORLD);
xt_mpi_call(MPI_Finalize(), MPI_COMM_WORLD);
return TEST_EXIT_CODE;
}
static void comms_construct_destruct(MPI_Comm comm_world)
{
enum {
num_comms = 128,
};
MPI_Comm comms[num_comms];
int tag_offsets[num_comms];
comms[0] = comm_world;
tag_offsets[0] = 0;
for (size_t i = 1; i < num_comms; ++i)
comms[i] = xt_mpi_comm_smart_dup(comms[i-1], tag_offsets+i);
for (size_t i = 1; i < num_comms; ++i)
xt_mpi_comm_smart_dedup(comms + i, tag_offsets[i]);
}
/*
* Local Variables:
* c-basic-offset: 2
* coding: utf-8
* indent-tabs-mode: nil
* show-trailing-whitespace: t
* require-trailing-newline: t
* End:
*/
@ MPI_COMM_WORLD
Definition: core.h:73
int MPI_Comm
Definition: core.h:64
void xt_initialize(MPI_Comm default_comm)
Definition: xt_init.c:70
void xt_finalize(void)
Definition: xt_init.c:89
MPI_Comm xt_mpi_comm_smart_dup(MPI_Comm comm, int *tag_offset)
Definition: xt_mpi.c:813
void xt_mpi_comm_smart_dedup(MPI_Comm *comm, int tag_offset)
Definition: xt_mpi.c:864
#define xt_mpi_call(call, comm)
Definition: xt_mpi.h:68
void xt_mpi_comm_mark_exclusive(MPI_Comm comm)
Definition: xt_mpi.c:881