320 строки
8.8 KiB
C
320 строки
8.8 KiB
C
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/*
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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_PTL_MX_H
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#define MCA_PTL_MX_H
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/* Standard system includes */
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#include <sys/types.h>
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#include <string.h>
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/* Open MPI includes */
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#include "class/ompi_free_list.h"
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#include "class/ompi_bitmap.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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#include "opal/util/output.h"
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#include "mca/mpool/mpool.h"
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#include "mca/btl/btl.h"
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#include "myriexpress.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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#define MCA_BTL_HAS_MPOOL 0
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/**
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* MX BTL component.
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*/
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struct mca_btl_mx_component_t {
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mca_btl_base_component_1_0_0_t super; /**< base BTL component */
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uint32_t mx_num_btls;
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uint32_t mx_max_btls;
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/**< number of hcas available to the MX component */
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struct mca_btl_mx_module_t** mx_btls;
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/**< array of available BTL modules */
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int mx_free_list_num;
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/**< initial size of free lists */
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int mx_free_list_max;
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/**< maximum size of free lists */
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int mx_max_posted_recv;
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/**< number of posted receives on each NIC */
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int mx_free_list_inc;
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/**< number of elements to alloc when growing free lists */
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opal_list_t mx_procs; /**< list of mx proc structures */
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uint32_t mx_filter;
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ompi_free_list_t mx_send_eager_frags; /**< free list of mx eager send fragments */
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ompi_free_list_t mx_send_user_frags; /**< free list of mx user send fragments */
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ompi_free_list_t mx_recv_frags; /**< free list of mx recv fragments */
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opal_list_t mx_pending_acks; /**< queue of pending sends */
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opal_mutex_t mx_lock; /**< lock for accessing module state */
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char* mx_mpool_name; /**< name of memory pool */
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};
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typedef struct mca_btl_mx_component_t mca_btl_mx_component_t;
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extern mca_btl_mx_component_t mca_btl_mx_component;
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/**
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* BTL Module Interface
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*/
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struct mca_btl_mx_module_t {
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mca_btl_base_module_t super; /**< base BTL interface */
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mca_btl_base_recv_reg_t mx_reg[MCA_BTL_TAG_MAX];
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mx_endpoint_t mx_endpoint; /**< */
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mx_endpoint_addr_t mx_endpoint_addr; /**< */
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opal_list_t mx_peers; /**< */
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uint32_t mx_posted_request; /**< number of posted MX request */
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opal_mutex_t mx_lock; /**< lock for accessing module state */
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#if MCA_BTL_HAS_MPOOL
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struct mca_mpool_base_module_t* mx_mpool;
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#endif
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};
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typedef struct mca_btl_mx_module_t mca_btl_mx_module_t;
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extern mca_btl_mx_module_t mca_btl_mx_module;
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/**
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* Register MX component parameters with the MCA framework
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*/
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extern int mca_btl_mx_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_mx_component_close(void);
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/**
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* MX component initialization.
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*
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* @param num_btl_modules (OUT) Number of BTLs returned in BTL array.
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* @param allow_multi_user_threads (OUT) Flag indicating wether BTL supports user threads (TRUE)
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* @param have_hidden_threads (OUT) Flag indicating wether BTL uses threads (TRUE)
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*/
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extern mca_btl_base_module_t** mca_btl_mx_component_init(
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int *num_btl_modules,
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bool allow_multi_user_threads,
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bool have_hidden_threads
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);
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/**
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* MX component progress.
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*/
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extern int mca_btl_mx_component_progress(void);
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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_mx_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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*
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* @param btl (IN)
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* @param nprocs (IN) Number of processes
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* @param procs (IN) Set of processes
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* @param peers (OUT) Set of (optional) peer addressing info.
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* @param peers (IN/OUT) Set of processes that are reachable via this BTL.
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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_mx_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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ompi_bitmap_t* reachable
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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 nproc (IN) Number of processes.
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* @param procs (IN) Set of processes.
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* @param peers (IN) Set of peer data structures.
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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_mx_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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* Initiate an asynchronous send.
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*
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* @param btl (IN) BTL module
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* @param endpoint (IN) BTL addressing information
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* @param descriptor (IN) Description of the data to be transfered
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* @param tag (IN) The tag value used to notify the peer.
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*/
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extern int mca_btl_mx_send(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* btl_peer,
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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 an asynchronous put.
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*
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* @param btl (IN) BTL module
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* @param endpoint (IN) BTL addressing information
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* @param descriptor (IN) Description of the data to be transferred
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*/
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extern int mca_btl_mx_put(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* btl_peer,
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struct mca_btl_base_descriptor_t* decriptor
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);
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/**
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* Initiate an asynchronous get.
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*
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* @param btl (IN) BTL module
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* @param endpoint (IN) BTL addressing information
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* @param descriptor (IN) Description of the data to be transferred
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*/
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extern int mca_btl_mx_get(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* btl_peer,
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struct mca_btl_base_descriptor_t* decriptor
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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 registration was successful
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*
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*/
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extern int mca_btl_mx_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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* Allocate a descriptor with a segment of the requested size.
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* Note that the BTL layer may choose to return a smaller size
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* if it cannot support the request.
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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_mx_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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* 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 descriptor (IN) Allocated descriptor.
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*/
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extern int mca_btl_mx_free(
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struct mca_btl_base_module_t* btl,
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mca_btl_base_descriptor_t* des);
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/**
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* Prepare a descriptor for send/rdma using the supplied
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* convertor. If the convertor references data that is contigous,
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* the descriptor may simply point to the user buffer. Otherwise,
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* this routine is responsible for allocating buffer space and
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* packing if required.
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*
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* @param btl (IN) BTL module
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* @param endpoint (IN) BTL peer addressing
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* @param convertor (IN) Data type convertor
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* @param reserve (IN) Additional bytes requested by upper layer to precede user data
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* @param size (IN/OUT) Number of bytes to prepare (IN), number of bytes actually prepared (OUT)
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*/
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mca_btl_base_descriptor_t* mca_btl_mx_prepare_src(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* peer,
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struct mca_mpool_base_registration_t*,
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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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extern mca_btl_base_descriptor_t* mca_btl_mx_prepare_dst(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* peer,
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struct mca_mpool_base_registration_t*,
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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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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#endif
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