267 строки
7.9 KiB
C
267 строки
7.9 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights 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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/**
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* @file
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*/
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#ifndef MCA_BTL_SELF_H
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#define MCA_BTL_SELF_H
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#include "class/ompi_free_list.h"
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#include "class/ompi_bitmap.h"
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#include "class/ompi_fifo.h"
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#include "opal/event/event.h"
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#include "mca/pml/pml.h"
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#include "mca/btl/btl.h"
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#include "mca/btl/base/base.h"
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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/**
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* Shared Memory (SELF) BTL module.
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*/
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struct mca_btl_self_component_t {
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mca_btl_base_component_1_0_0_t super; /**< base BTL component */
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int free_list_num; /**< initial size of free lists */
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int free_list_max; /**< maximum size of free lists */
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int free_list_inc; /**< number of elements to alloc when growing free lists */
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opal_mutex_t self_lock;
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ompi_free_list_t self_frags_eager; /**< free list of self first */
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ompi_free_list_t self_frags_send; /**< free list of self second */
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ompi_free_list_t self_frags_rdma; /**< free list of self second */
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mca_btl_base_recv_reg_t self_reg[256];
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};
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typedef struct mca_btl_self_component_t mca_btl_self_component_t;
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extern mca_btl_self_component_t mca_btl_self_component;
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/**
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* Register shared memory module parameters with the MCA framework
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*/
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extern int mca_btl_self_component_open(void);
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/**
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* Any final cleanup before being unloaded.
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*/
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extern int mca_btl_self_component_close(void);
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/**
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* SELF module initialization.
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*
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* @param num_btls (OUT) Number of BTLs returned in BTL array.
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* @param enable_progress_threads (IN) Flag indicating whether BTL is allowed to have progress threads
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* @param enable_mpi_threads (IN) Flag indicating whether BTL must support multilple simultaneous invocations from different threads
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*
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*/
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extern mca_btl_base_module_t** mca_btl_self_component_init(
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int *num_btls,
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bool enable_progress_threads,
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bool enable_mpi_threads
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);
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extern mca_btl_base_module_t mca_btl_self;
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/**
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* Cleanup any resources held by the BTL.
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*
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* @param btl BTL instance.
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* @return OMPI_SUCCESS or error status on failure.
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*/
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extern int mca_btl_self_finalize(
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struct mca_btl_base_module_t* btl
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);
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/**
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* PML->BTL notification of change in the process list.
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* PML->BTL Notification that a receive fragment has been matched.
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* Called for message that is send from process with the virtual
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* address of the shared memory segment being different than that of
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* the receiver.
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*
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* @param btl (IN)
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* @param proc (IN)
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* @param peer (OUT)
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* @return OMPI_SUCCESS or error status on failure.
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*
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*/
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extern int mca_btl_self_add_procs(
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struct mca_btl_base_module_t* btl,
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size_t nprocs,
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struct ompi_proc_t **procs,
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struct mca_btl_base_endpoint_t** peers,
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struct ompi_bitmap_t* reachability
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);
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/**
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* PML->BTL notification of change in the process list.
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* PML->BTL Notification that a receive fragment has been matched.
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* Called for message that is send from process with the virtual
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* address of the shared memory segment being the same as that of
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* the receiver.
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*
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* @param btl (IN)
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* @param proc (IN)
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* @param peer (OUT)
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* @return OMPI_SUCCESS or error status on failure.
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*
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*/
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extern int mca_btl_self_add_procs_same_base_addr(
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struct mca_btl_base_module_t* btl,
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size_t nprocs,
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struct ompi_proc_t **procs,
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struct mca_btl_base_endpoint_t** peers,
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ompi_bitmap_t* reachability
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);
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/**
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* PML->BTL notification of change in the process list.
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*
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* @param btl (IN) BTL instance
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* @param proc (IN) Peer process
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* @param peer (IN) Peer addressing information.
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* @return Status indicating if cleanup was successful
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*
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*/
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extern int mca_btl_self_del_procs(
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struct mca_btl_base_module_t* btl,
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size_t nprocs,
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struct ompi_proc_t **procs,
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struct mca_btl_base_endpoint_t **peers
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);
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/**
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* Register a callback function that is called on receipt
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* of a fragment.
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*
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* @param btl (IN) BTL module
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* @return Status indicating if cleanup was successful
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*
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* When the process list changes, the PML notifies the BTL of the
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* change, to provide the opportunity to cleanup or release any
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* resources associated with the peer.
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*/
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extern int mca_btl_self_register(
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struct mca_btl_base_module_t* btl,
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mca_btl_base_tag_t tag,
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mca_btl_base_module_recv_cb_fn_t cbfunc,
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void* cbdata
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);
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/**
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* Allocate a segment.
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*
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* @param btl (IN) BTL module
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* @param size (IN) Request segment size.
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*/
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extern mca_btl_base_descriptor_t* mca_btl_self_alloc(
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struct mca_btl_base_module_t* btl,
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size_t size
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);
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/**
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* Return a segment allocated by this BTL.
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*
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* @param btl (IN) BTL module
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* @param segment (IN) Allocated segment.
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*/
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extern int mca_btl_self_free(
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struct mca_btl_base_module_t* btl,
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mca_btl_base_descriptor_t* segment
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);
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/**
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* Pack data
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*
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* @param btl (IN) BTL module
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* @param peer (IN) BTL peer addressing
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*/
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struct mca_btl_base_descriptor_t* mca_btl_self_prepare_src(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* endpoint,
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struct mca_mpool_base_registration_t* registration,
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struct ompi_convertor_t* convertor,
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size_t reserve,
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size_t* size
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);
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/**
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* Prepare data for RDMA
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*
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* @param btl (IN) BTL module
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* @param peer (IN) BTL peer addressing
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*/
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struct mca_btl_base_descriptor_t* mca_btl_self_prepare_dst(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* endpoint,
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struct mca_mpool_base_registration_t* registration,
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struct ompi_convertor_t* convertor,
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size_t reserve,
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size_t* size
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);
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/**
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* Initiate a send to the peer.
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*
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* @param btl (IN) BTL module
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* @param peer (IN) BTL peer addressing
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*/
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extern int mca_btl_self_send(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* endpoint,
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struct mca_btl_base_descriptor_t* descriptor,
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mca_btl_base_tag_t tag
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);
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/**
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* Initiate a put to the peer.
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*
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* @param btl (IN) BTL module
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* @param peer (IN) BTL peer addressing
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*/
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extern int mca_btl_self_rdma(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* endpoint,
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struct mca_btl_base_descriptor_t* descriptor
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);
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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#endif
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