b90c83840f
* Remodel the request. Added the wait sync primitive and integrate it into the PML and MTL infrastructure. The multi-threaded requests are now significantly less heavy and less noisy (only the threads associated with completed requests are signaled). * Fix the condition to release the request.
88 строки
3.4 KiB
C
88 строки
3.4 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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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) 2004-2016 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) 2004-2008 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) 2009 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2015 Los Alamos National Security, LLC. All rights
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* reserved.
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* Copyright (c) 2015 Research Organization for Information Science
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* and Technology (RIST). 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_PML_BASE_REQUEST_H
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#define MCA_PML_BASE_REQUEST_H
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#include "ompi_config.h"
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#include "opal/class/opal_free_list.h"
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#include "ompi/communicator/communicator.h"
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#include "ompi/request/request.h"
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#include "opal/datatype/opal_convertor.h"
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BEGIN_C_DECLS
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/**
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* External list for the requests. They are declared as lists of
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* the basic request type, which will allow all PML to overload
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* the list. Beware these free lists have to be initialized
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* directly by the PML who win the PML election.
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*/
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OMPI_DECLSPEC extern opal_free_list_t mca_pml_base_send_requests;
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OMPI_DECLSPEC extern opal_free_list_t mca_pml_base_recv_requests;
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/**
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* Type of request.
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*/
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/*
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* The following include pulls in shared typedefs with debugger plugins.
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* For more information on why we do this see the Notice to developers
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* comment at the top of the ompi_msgq_dll.c file.
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*/
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#include "pml_base_request_dbg.h"
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/**
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* Base type for PML P2P requests
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*/
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struct mca_pml_base_request_t {
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/* START: These fields have to match the definition of the mca_pml_cm_request_t */
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ompi_request_t req_ompi; /**< base request */
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volatile int32_t req_pml_complete; /**< flag indicating if the pt-2-pt layer is done with this request */
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volatile int32_t req_free_called; /**< flag indicating if the user has freed this request */
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mca_pml_base_request_type_t req_type; /**< MPI request type - used for test */
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struct ompi_communicator_t *req_comm; /**< communicator pointer */
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struct ompi_datatype_t *req_datatype; /**< pointer to data type */
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opal_convertor_t req_convertor; /**< always need the convertor */
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/* END: These field have to match the definition of the mca_pml_cm_request_t */
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void *req_addr; /**< pointer to application buffer */
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size_t req_count; /**< count of user datatype elements */
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int32_t req_peer; /**< peer process - rank w/in this communicator */
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int32_t req_tag; /**< user defined tag */
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struct ompi_proc_t* req_proc; /**< peer process */
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uint64_t req_sequence; /**< sequence number for MPI pt-2-pt ordering */
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};
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typedef struct mca_pml_base_request_t mca_pml_base_request_t;
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OMPI_DECLSPEC OBJ_CLASS_DECLARATION(mca_pml_base_request_t);
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END_C_DECLS
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#endif
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