612570134f
to let the PML (or io, more generally the low level request manager)
to have it's own release function (what was before the req_fini). This
function will only be called from the low level while the req_free will
be called from the upper level (MPI layer) in order to mark the request
as not used by the user anymore.
From the request point of view the requests will be marked as inactive
everytime we read their status (true for persistent as well). As
MPI_REQUEST_NULL is already marked as inactive, the test and wait functions
are simpler. The drawback is that now we have to change in the
ompi_request_{test|wait} the req_status of the request once we get it's
status.
This commit was SVN r9290.
81 строка
2.9 KiB
C
81 строка
2.9 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_PML_BASE_REQUEST_H
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#define MCA_PML_BASE_REQUEST_H
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#include "ompi/class/ompi_free_list.h"
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#include "ompi/request/request.h"
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/*#include "ompi/communicator/communicator.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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OMPI_DECLSPEC extern opal_class_t mca_pml_base_request_t_class;
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/**
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* Type of request.
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*/
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typedef enum {
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MCA_PML_REQUEST_NULL,
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MCA_PML_REQUEST_SEND,
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MCA_PML_REQUEST_RECV,
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MCA_PML_REQUEST_IPROBE,
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MCA_PML_REQUEST_PROBE
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} mca_pml_base_request_type_t;
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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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ompi_request_t req_ompi; /**< base request */
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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_communicator_t *req_comm; /**< communicator pointer */
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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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struct ompi_datatype_t *req_datatype; /**< pointer to data type */
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mca_pml_base_request_type_t req_type; /**< MPI request type - used for test */
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volatile bool req_pml_complete; /**< flag indicating if the pt-2-pt layer is done with this request */
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volatile bool req_free_called; /**< flag indicating if the user has freed this request */
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};
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typedef struct mca_pml_base_request_t mca_pml_base_request_t;
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/*
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* Mark the MPI request as completed and trigger the condition if required.
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*/
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#define MCA_PML_BASE_REQUEST_MPI_COMPLETE( request ) \
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do { \
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(request)->req_complete = true; \
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ompi_request_completed++; \
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if(ompi_request_waiting) { \
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opal_condition_broadcast(&ompi_request_cond); \
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} \
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} while(0)
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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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