cca1616368
UD is the Unreliable Datagram transport for Infiniband, specifically OpenIB. This BTL is derived from the existing openib BTL, which is RC (Reliable Connection) based. Still a work in progress, as there is a lot of work left to do. Specifically, performance, scalability, and flow control need to be addressed. Currently I'm playing around with different methods for handling receive buffers, as well as profiling to figure out where the time is going. This commit was SVN r10271.
73 строки
2.3 KiB
C
73 строки
2.3 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 (c) 2006 Sandia National Laboratories. 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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#ifndef MCA_BTL_UD_PROC_H
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#define MCA_BTL_UD_PROC_H
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#include "orte/mca/ns/ns.h"
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#include "opal/class/opal_object.h"
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#include "ompi/proc/proc.h"
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#include "btl_ud.h"
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#include "btl_ud_endpoint.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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OBJ_CLASS_DECLARATION(mca_btl_ud_proc_t);
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/**
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* Represents the state of a remote process and the set of addresses
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* that it exports. Also cache an instance of mca_btl_base_endpoint_t for
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* each
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* BTL instance that attempts to open a connection to the process.
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*/
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struct mca_btl_ud_proc_t {
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opal_list_item_t super;
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/**< allow proc to be placed on a list */
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ompi_proc_t *proc_ompi;
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/**< pointer to corresponding ompi_proc_t */
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orte_process_name_t proc_guid;
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/**< globally unique identifier for the process */
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struct mca_btl_ud_port_info_t* proc_ports;
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size_t proc_port_count;
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/**< number of ports published by endpoint */
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struct mca_btl_base_endpoint_t **proc_endpoints;
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/**< array of endpoints that have been created to access this proc */
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size_t proc_endpoint_count;
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/**< number of endpoints */
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opal_mutex_t proc_lock;
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/**< lock to protect against concurrent access to proc state */
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};
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typedef struct mca_btl_ud_proc_t mca_btl_ud_proc_t;
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mca_btl_ud_proc_t* mca_btl_ud_proc_create(ompi_proc_t* ompi_proc);
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int mca_btl_ud_proc_insert(mca_btl_ud_proc_t*, mca_btl_base_endpoint_t*);
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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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