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/*
* Copyright (c) 2001-2002 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 1998-2001 University of Notre Dame.
* All rights reserved.
* Copyright (c) 1994-1998 The Ohio State University.
* All rights reserved.
*
* This file is part of the LAM/MPI software package. For license
* information, see the LICENSE file in the top level directory of the
* LAM/MPI source distribution.
*
* $HEADER$
*
* $Id: put.c,v 1.6 2002/12/11 19:15:13 jsquyres Exp $
*
* Function: - put data into a window
* Accepts: - origin address
* - origin count
* - origin datatype
* - target rank
* - target displacement
* - target count
* - target datatype
* - window
* Returns: - MPI_SUCCESS or error code
*/
#include <errno.h>
#include <stdlib.h>
#include <blktype.h>
#include <mpi.h>
#include <mpisys.h>
#include <rpisys.h>
#include <typical.h>
/*@
MPI_Put - One Sided data placement operation
Input Parameters:
+ orgaddr - initial address of origin buffer (choice)
. orgcnt - number of entries in origin buffer (nonnegative integer)
. orgtype - datatype of each entry in origin buffer (handle)
. rank - rank of target (nonnegative integer)
. targdisp - displacement from start of window to target buffer (nonnegative integer)
. targcnt - number of entries in target buffer (nonnegative integer)
. targtype - datatype of each entry in target buffer (handle)
- win - window object used for communication (handle)
Notes:
The target_datatype argument is a handle to a datatype object that is
defined at the origin process, even though it defines a data layout in
the target process memory.
.N fortran
.N IMPI_MPI2
.N Errors
.N MPI_SUCCESS
.N MPI_ERR_WIN
.N MPI_ERR_RANK
.N MPI_ERR_OTHER
.N MPI_ERR_EPOCH
.N MPI_ERR_INTERN
.N MPI_ERR_TYPENOTSUP
.seealso MPI_Accumulate(3), MPI_Get(3), MPI_Win_create(3), MPI_Win_start(3), MPI_Win_complete(3), MPI_Win_fence(3), MPI_Win_free(3), MPI_Win_get_group(3), MPI_Win_get_group(3), MPI_Win_wait(3)
.N WEB
@*/
int
MPI_Put(void *orgaddr, int orgcnt, MPI_Datatype orgtype, int rank,
MPI_Aint targdisp, int targcnt, MPI_Datatype targtype, MPI_Win win)
{
struct _osdhdr *header; /* 1-sided protocol header */
int err; /* error code */
lam_initerr_m();
lam_setfunc_m(BLKMPIPUT);
/*
* Check arguments.
*/
if (win == MPI_WIN_NULL) {
return(lam_err_comm(MPI_COMM_WORLD, MPI_ERR_WIN, EINVAL,
"null handle"));
}
if (orgtype == MPI_DATATYPE_NULL || targtype == MPI_DATATYPE_NULL) {
return(lam_err_win(win, MPI_ERR_TYPE, 0, "null handle"));
}
/*
* Trivial case.
*/
if (rank == MPI_PROC_NULL) return(MPI_SUCCESS);
if (rank < 0 || rank >= win->w_comm->c_group->g_nprocs) {
return(lam_err_win(win, MPI_ERR_RANK, 0, "out of range"));
}
/*
* Check epoch.
*/
if (!((win->w_flags & LAM_WFACCEPOCH)
|| win->w_pstate[rank] & LAM_WFSTARTED)) {
if (win->w_flags & LAM_WFNOOUT) {
return(lam_err_win(win, MPI_ERR_EPOCH, 0, ""));
} else {
win->w_flags |= LAM_WFACCEPOCH | LAM_WFEXPEPOCH;
}
}
/*
* Sender protocol header followed by data.
*/
header = (struct _osdhdr *) malloc(sizeof(struct _osdhdr));
LAM_ZERO_ME(*header);
if (header == 0) {
return(lam_err_win(win, MPI_ERR_OTHER, errno,
"allocating header"));
}
err = lam_osd_fillheader(LAM_OSD_PUT, 0,
targdisp, targcnt, targtype, header);
if (err != MPI_SUCCESS) {
return(lam_err_win(win, err, 0, ""));
}
err = lam_osd_send(header, 1, lam_osdhdr_type, rank,
LAM_OSD_HEADER, win->w_comm, TRUE, TRUE);
if (err != MPI_SUCCESS) {
return(lam_errfunc(win->w_comm, BLKMPIPUT, err));
}
err = lam_osd_send(orgaddr, orgcnt, orgtype, rank,
LAM_OSD_PUT, win->w_comm, FALSE, FALSE);
if (err != MPI_SUCCESS) {
return(lam_errfunc(win->w_comm, BLKMPIPUT, err));
}
/*
* Make progress.
*/
err = lam_osd_push();
if (err != MPI_SUCCESS) {
return(lam_errfunc(win->w_comm, BLKMPIPUT, err));
}
lam_resetfunc_m(BLKMPIPUT);
return(MPI_SUCCESS);
}
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