a4619b1a11
Correct the problem introduced by the commit 8933 (thanks Tim). In order to avoid to much trafic on the bus we do not compute the bytes_delivered (require an atomic size_t add) we have to set it in the begining or otherwise we will report the wrong count in the MPI status. This commit was SVN r8968.
301 строка
14 KiB
C
301 строка
14 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 OMPI_PML_OB1_RECV_REQUEST_H
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#define OMPI_PML_OB1_RECV_REQUEST_H
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#include "pml_ob1.h"
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#include "pml_ob1_proc.h"
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#include "pml_ob1_rdma.h"
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#include "mca/mpool/base/base.h"
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#include "mca/pml/base/pml_base_recvreq.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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struct mca_pml_ob1_recv_request_t {
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mca_pml_base_recv_request_t req_recv;
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ompi_ptr_t req_send;
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#if OMPI_HAVE_THREAD_SUPPORT
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volatile int32_t req_lock;
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#else
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int32_t req_lock;
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#endif
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size_t req_pipeline_depth;
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size_t req_bytes_received;
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size_t req_bytes_delivered;
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size_t req_rdma_offset;
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mca_pml_ob1_rdma_btl_t req_rdma[MCA_PML_OB1_MAX_RDMA_PER_REQUEST];
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uint32_t req_rdma_cnt;
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uint32_t req_rdma_idx;
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};
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typedef struct mca_pml_ob1_recv_request_t mca_pml_ob1_recv_request_t;
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OBJ_CLASS_DECLARATION(mca_pml_ob1_recv_request_t);
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/**
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* Allocate a recv request from the modules free list.
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*
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* @param rc (OUT) OMPI_SUCCESS or error status on failure.
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* @return Receive request.
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*/
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#define MCA_PML_OB1_RECV_REQUEST_ALLOC(recvreq, rc) \
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do { \
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opal_list_item_t* item; \
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rc = OMPI_SUCCESS; \
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OMPI_FREE_LIST_GET(&mca_pml_ob1.recv_requests, item, rc); \
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recvreq = (mca_pml_ob1_recv_request_t*)item; \
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} while(0)
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/**
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* Initialize a receive request with call parameters.
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*
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* @param request (IN) Receive request.
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* @param addr (IN) User buffer.
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* @param count (IN) Number of elements of indicated datatype.
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* @param datatype (IN) User defined datatype.
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* @param src (IN) Source rank w/in the communicator.
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* @param tag (IN) User defined tag.
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* @param comm (IN) Communicator.
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* @param persistent (IN) Is this a ersistent request.
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*/
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#define MCA_PML_OB1_RECV_REQUEST_INIT( \
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request, \
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addr, \
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count, \
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datatype, \
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src, \
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tag, \
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comm, \
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persistent) \
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do { \
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(request)->req_rdma_cnt = 0; \
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MCA_PML_BASE_RECV_REQUEST_INIT( \
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&(request)->req_recv, \
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addr, \
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count, \
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datatype, \
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src, \
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tag, \
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comm, \
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persistent); \
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} while(0)
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/**
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* Return a recv request to the modules free list.
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*
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* @param request (IN) Receive request.
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*/
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#define MCA_PML_OB1_RECV_REQUEST_RETURN(recvreq) \
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do { \
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size_t r; \
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for(r=0; r<recvreq->req_rdma_cnt; r++) { \
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mca_mpool_base_registration_t* btl_reg = recvreq->req_rdma[r].btl_reg; \
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if(NULL != btl_reg) { \
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btl_reg->mpool->mpool_release(btl_reg->mpool, btl_reg); \
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} \
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} \
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MCA_PML_BASE_RECV_REQUEST_FINI(&(recvreq)->req_recv); \
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OMPI_FREE_LIST_RETURN(&mca_pml_ob1.recv_requests, (opal_list_item_t*)(recvreq)); \
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} while(0)
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/*
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* Free the PML receive request
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*/
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#define MCA_PML_OB1_RECV_REQUEST_FREE(recvreq) \
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{ \
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mca_pml_base_request_t* pml_request = (mca_pml_base_request_t*)(recvreq); \
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pml_request->req_free_called = true; \
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if( pml_request->req_pml_complete == true) { \
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MCA_PML_OB1_RECV_REQUEST_RETURN((recvreq)); \
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} \
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(recvreq) = (mca_pml_ob1_recv_request_t*)MPI_REQUEST_NULL; \
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}
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/**
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* Attempt to match the request against the unexpected fragment list
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* for all source ranks w/in the communicator.
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*
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* @param request (IN) Request to match.
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*/
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void mca_pml_ob1_recv_request_match_wild(mca_pml_ob1_recv_request_t* request);
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/**
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* Attempt to match the request against the unexpected fragment list
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* for a specific source rank.
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*
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* @param request (IN) Request to match.
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*/
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void mca_pml_ob1_recv_request_match_specific(mca_pml_ob1_recv_request_t* request);
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/**
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* Initialize diagnostic code for tracing rdma protocol timing
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*/
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/**
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* Start an initialized request.
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*
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* @param request Receive request.
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* @return OMPI_SUCESS or error status on failure.
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*/
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#define MCA_PML_OB1_RECV_REQUEST_START(request) \
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do { \
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/* init/re-init the request */ \
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(request)->req_bytes_received = 0; \
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(request)->req_bytes_delivered = 0; \
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(request)->req_lock = 0; \
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(request)->req_pipeline_depth = 0; \
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(request)->req_rdma_cnt = 0; \
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(request)->req_rdma_idx = 0; \
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(request)->req_recv.req_base.req_pml_complete = false; \
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(request)->req_recv.req_base.req_ompi.req_complete = false; \
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(request)->req_recv.req_base.req_ompi.req_state = OMPI_REQUEST_ACTIVE; \
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\
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/* always set the req_status.MPI_TAG to ANY_TAG before starting the \
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* request. This field is used if cancelled to find out if the request \
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* has been matched or not. \
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*/ \
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(request)->req_recv.req_base.req_ompi.req_status.MPI_TAG = OMPI_ANY_TAG; \
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(request)->req_recv.req_base.req_ompi.req_status.MPI_ERROR = OMPI_SUCCESS; \
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(request)->req_recv.req_base.req_ompi.req_status._cancelled = 0; \
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\
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/* attempt to match posted recv */ \
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if((request)->req_recv.req_base.req_peer == OMPI_ANY_SOURCE) { \
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mca_pml_ob1_recv_request_match_wild(request); \
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} else { \
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mca_pml_ob1_recv_request_match_specific(request); \
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} \
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} while (0)
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/**
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*
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*/
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#define MCA_PML_OB1_RECV_REQUEST_MATCHED( request, hdr ) \
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do { \
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(request)->req_recv.req_base.req_ompi.req_status.MPI_TAG = (hdr)->hdr_tag; \
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(request)->req_recv.req_base.req_ompi.req_status.MPI_SOURCE = (hdr)->hdr_src; \
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if((request)->req_recv.req_bytes_packed != 0) { \
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ompi_convertor_copy_and_prepare_for_recv( \
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(request)->req_recv.req_base.req_proc->proc_convertor, \
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(request)->req_recv.req_base.req_datatype, \
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(request)->req_recv.req_base.req_count, \
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(request)->req_recv.req_base.req_addr, \
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&(request)->req_recv.req_convertor ); \
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ompi_convertor_get_unpacked_size( &(request)->req_recv.req_convertor, \
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&(request)->req_bytes_delivered ); \
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} \
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} while (0)
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/**
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*
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*/
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#define MCA_PML_OB1_RECV_REQUEST_UNPACK( \
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request, \
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segments, \
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num_segments, \
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seg_offset, \
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data_offset, \
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bytes_received, \
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bytes_delivered) \
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do { \
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if(request->req_recv.req_bytes_packed > 0) { \
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struct iovec iov[MCA_BTL_DES_MAX_SEGMENTS]; \
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uint32_t iov_count = 0; \
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size_t max_data = bytes_received; \
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int32_t free_after = 0; \
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size_t n, offset = seg_offset; \
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\
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for(n=0; n<num_segments; n++) { \
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mca_btl_base_segment_t* segment = segments+n; \
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if(offset >= segment->seg_len) { \
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offset -= segment->seg_len; \
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} else { \
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iov[iov_count].iov_len = segment->seg_len - seg_offset; \
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iov[iov_count].iov_base = (void*)((unsigned char*)segment->seg_addr.pval + seg_offset); \
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iov_count++; \
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} \
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} \
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ompi_convertor_set_position( \
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&(request->req_recv.req_convertor), \
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&data_offset); \
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ompi_convertor_unpack( \
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&(request)->req_recv.req_convertor, \
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iov, \
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&iov_count, \
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&max_data, \
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&free_after); \
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bytes_delivered = max_data; \
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} else { \
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bytes_delivered = 0; \
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} \
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} while (0)
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/**
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*
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*/
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void mca_pml_ob1_recv_request_progress(
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mca_pml_ob1_recv_request_t* req,
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struct mca_btl_base_module_t* btl,
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mca_btl_base_segment_t* segments,
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size_t num_segments);
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/**
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*
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*/
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void mca_pml_ob1_recv_request_matched_probe(
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mca_pml_ob1_recv_request_t* req,
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struct mca_btl_base_module_t* btl,
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mca_btl_base_segment_t* segments,
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size_t num_segments);
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/**
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*
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*/
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void mca_pml_ob1_recv_request_schedule(
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mca_pml_ob1_recv_request_t* req);
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/**
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*
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*/
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void mca_pml_ob1_recv_request_fin(
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mca_pml_ob1_recv_request_t* req,
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size_t rdma_length);
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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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