132 строки
3.8 KiB
C
132 строки
3.8 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2014-2015 Los Alamos National Security, LLC. All rights
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* reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#if !defined(OSC_RDMA_PASSIVE_TARGET_H)
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#define OSC_RDMA_PASSIVE_TARGET_H
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#include "osc_rdma.h"
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#include "osc_rdma_sync.h"
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#include "osc_rdma_lock.h"
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/**
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* @brief lock the target in the window using network/cpu atomics
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*
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* @param[in] lock_type mpi lock type (MPI_LOCK_SHARED, MPI_LOCK_EXCLUSIVE)
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* @param[in] target target process
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* @param[in] assert asserts
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* @param[in] win mpi window
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*
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* @returns OMPI_SUCCESS on success
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* @returns OMPI_ERR_RMA_SYNC if there is a conflicting RMA epoch
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*/
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int ompi_osc_rdma_lock_atomic (int lock_type, int target, int assert, ompi_win_t *win);
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/**
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* @brief unlock the target in the window using network/cpu atomics
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*
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* @param[in] target target process
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* @param[in] win mpi window
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*
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* @returns OMPI_SUCCESS on success
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* @returns OMPI_ERR_RMA_SYNC if the target is not locked
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*/
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int ompi_osc_rdma_unlock_atomic (int target, ompi_win_t *win);
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/**
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* @brief lock all targets in window using network/cpu atomics
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*
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* @param[in] assert asserts
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* @param[in] win mpi window
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*
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* @returns OMPI_SUCCESS on success
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* @returns OMPI_ERR_RMA_SYNC if there is a conflicting RMA epoch
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*/
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int ompi_osc_rdma_lock_all_atomic (int assert, struct ompi_win_t *win);
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/**
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* @brief unlock all targets in window using network/cpu atomics
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*
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* @param[in] assert asserts
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* @param[in] win mpi window
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*
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* @returns OMPI_SUCCESS on success
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* @returns OMPI_ERR_RMA_SYNC if the window is not in a lock all access epoch
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*/
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int ompi_osc_rdma_unlock_all_atomic (struct ompi_win_t *win);
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/**
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* @brief synchronize the public and private copies of the window
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*
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* @param[in] win mpi window
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*
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* @returns OMPI_SUCCESS on success
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*
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* Just acts as a memory barrier since this module only supports a unified memory
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* model.
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*/
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int ompi_osc_rdma_sync (struct ompi_win_t *win);
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/**
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* @brief flush rdma transactions to a target
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*
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* @param[in] target target process
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* @param[in] win mpi window
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*
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* @returns OMPI_SUCCESS on success
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* @returns OMPI_ERR_RMA_SYNC if the target is not locked
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*/
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int ompi_osc_rdma_flush (int target, struct ompi_win_t *win);
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/**
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* @brief flush rdma transactions to all target(s)
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*
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* @param[in] win mpi window
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*
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* @returns OMPI_SUCCESS on success
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* @returns OMPI_ERR_RMA_SYNC if no processes are locked
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*
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* osc/rdma does not make a distinction between local and remote rma
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* completion. this could change in a future release as small messages
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* may be internally buffered.
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*/
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int ompi_osc_rdma_flush_all (struct ompi_win_t *win);
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/**
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* @brief flush rdma transactions to a target (local completion)
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*
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* @param[in] target target process
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* @param[in] win mpi window
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*
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* @returns OMPI_SUCCESS on success
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* @returns OMPI_ERR_RMA_SYNC if the target is not locked
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*
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* osc/rdma does not make a distinction between local and remote rma
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* completion. this could change in a future release as small messages
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* may be internally buffered.
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*/
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int ompi_osc_rdma_flush_local (int target, struct ompi_win_t *win);
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/**
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* @brief flush rdma transactions to all target(s) (local completion)
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*
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* @param[in] win mpi window
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*
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* @returns OMPI_SUCCESS on success
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* @returns OMPI_ERR_RMA_SYNC if no processes are locked
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*
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* osc/rdma does not make a distinction between local and remote rma
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* completion. this could change in a future release as small messages
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* may be internally buffered.
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*/
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int ompi_osc_rdma_flush_local_all (struct ompi_win_t *win);
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#endif
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