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openmpi/ompi/mpi/c/win_unlock.c
Nathan Hjelm 37ae430424 rma: fix locking/unlocking of MPI_PROC_NULL
It is valid to lock/unlock MPI_PROC_NULL. It probably isn't work tracking
whether MPI_PROC_NULL is locked for MPI_PROC_NULL RMA operations so this
is probably the permanent solution.

Closes trac:4720

Tracking the 1.8.2 issue with this CMR.

cmr=v1.8.2:reviewer=bbenton

This commit was SVN r32011.

The following Trac tickets were found above:
  Ticket 4720 --> https://svn.open-mpi.org/trac/ompi/ticket/4720
2014-06-17 04:41:49 +00:00

64 строки
2.0 KiB
C

/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 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 (c) 2014 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include "ompi/mpi/c/bindings.h"
#include "ompi/runtime/params.h"
#include "ompi/communicator/communicator.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/win/win.h"
#include "ompi/mca/osc/osc.h"
#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Win_unlock = PMPI_Win_unlock
#endif
#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_Win_unlock";
int MPI_Win_unlock(int rank, MPI_Win win)
{
int rc;
if (MPI_PARAM_CHECK) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (ompi_win_invalid(win)) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_WIN, FUNC_NAME);
} else if (ompi_win_peer_invalid(win, rank)) {
return OMPI_ERRHANDLER_INVOKE(win, MPI_ERR_RANK, FUNC_NAME);
}
}
/* NTH: do not bother keeping track of unlocking MPI_PROC_NULL. */
if (MPI_PROC_NULL == rank) return MPI_SUCCESS;
OPAL_CR_ENTER_LIBRARY();
rc = win->w_osc_module->osc_unlock(rank, win);
OMPI_ERRHANDLER_RETURN(rc, win, rc, FUNC_NAME);
}