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openmpi/ompi/mca/coll/sync/coll_sync_reduce.c

48 строки
1.6 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2006 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "coll_sync.h"
/*
* reduce
*
* Function: - reduce
* Accepts: - same as MPI_Reduce()
* Returns: - MPI_SUCCESS or error code
*/
int mca_coll_sync_reduce(void *sbuf, void *rbuf, int count,
struct ompi_datatype_t *dtype,
struct ompi_op_t *op,
int root, struct ompi_communicator_t *comm,
mca_coll_base_module_t *module)
{
mca_coll_sync_module_t *s = (mca_coll_sync_module_t*) module;
if (s->in_operation) {
return s->c_coll.coll_reduce(sbuf, rbuf, count, dtype, op, root, comm,
s->c_coll.coll_reduce_module);
} else {
COLL_SYNC(s, s->c_coll.coll_reduce(sbuf, rbuf, count, dtype,
op, root, comm,
s->c_coll.coll_reduce_module));
}
}