1 /*
2 * Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
3 * University Research and Technology
4 * Corporation. All rights reserved.
5 * Copyright (c) 2004-2005 The University of Tennessee and The University
6 * of Tennessee Research Foundation. All rights
7 * reserved.
8 * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
9 * University of Stuttgart. All rights reserved.
10 * Copyright (c) 2004-2005 The Regents of the University of California.
11 * All rights reserved.
12 * Copyright (c) 2015 Research Organization for Information Science
13 * and Technology (RIST). All rights reserved.
14 * $COPYRIGHT$
15 *
16 * Additional copyrights may follow
17 *
18 * $HEADER$
19 */
20
21 #include "ompi_config.h"
22
23 #include "ompi/constants.h"
24 #include "ompi/datatype/ompi_datatype.h"
25 #include "coll_self.h"
26
27
28 /*
29 * gather_intra
30 *
31 * Function: - gather
32 * Accepts: - same arguments as MPI_Gather()
33 * Returns: - MPI_SUCCESS or error code
34 */
mca_coll_self_gather_intra(const void * sbuf,int scount,struct ompi_datatype_t * sdtype,void * rbuf,int rcount,struct ompi_datatype_t * rdtype,int root,struct ompi_communicator_t * comm,mca_coll_base_module_t * module)35 int mca_coll_self_gather_intra(const void *sbuf, int scount,
36 struct ompi_datatype_t *sdtype,
37 void *rbuf, int rcount,
38 struct ompi_datatype_t *rdtype,
39 int root, struct ompi_communicator_t *comm,
40 mca_coll_base_module_t *module)
41 {
42 if (MPI_IN_PLACE == sbuf) {
43 return MPI_SUCCESS;
44 } else {
45 return ompi_datatype_sndrcv(sbuf, scount, sdtype,
46 rbuf, rcount, rdtype);
47 }
48 }
49