445 строки
18 KiB
C
445 строки
18 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) 2004-2009 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) 2004-2007 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) 2008 UT-Battelle, LLC. All rights reserved.
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* Copyright (c) 2010 Oracle and/or its affiliates. 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_BFO_RECV_REQUEST_H
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#define OMPI_PML_BFO_RECV_REQUEST_H
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#include "pml_bfo.h"
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#include "pml_bfo_rdma.h"
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#include "pml_bfo_rdmafrag.h"
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#include "ompi/proc/proc.h"
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#include "ompi/mca/pml/bfo/pml_bfo_comm.h"
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#include "ompi/mca/mpool/base/base.h"
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#include "ompi/mca/pml/base/pml_base_recvreq.h"
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/* BFO FAILOVER CODE - begin */
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#define RECVREQ_RECVERRSENT 0x01
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#define RECVREQ_RNDVRESTART_RECVED 0x02
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#define RECVREQ_RNDVRESTART_ACKED 0x04
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/* BFO FAILOVER CODE - end */
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BEGIN_C_DECLS
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struct mca_pml_bfo_recv_request_t {
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mca_pml_base_recv_request_t req_recv;
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ompi_ptr_t remote_req_send;
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/* BFO FAILOVER CODE - begin */
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int32_t req_msgseq; /* PML sequence number */
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int32_t req_events; /* number of outstanding events on request */
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int32_t req_restartseq; /* sequence number of restarted request */
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int32_t req_errstate; /* state of request if in error */
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/* BFO FAILOVER CODE - end */
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int32_t req_lock;
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size_t req_pipeline_depth;
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size_t req_bytes_received; /**< amount of data transferred into the user buffer */
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size_t req_bytes_expected; /**< local size of the data as suggested by the user */
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size_t req_rdma_offset;
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size_t req_send_offset;
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uint32_t req_rdma_cnt;
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uint32_t req_rdma_idx;
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bool req_pending;
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bool req_ack_sent; /**< whether ack was sent to the sender */
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bool req_match_received; /**< Prevent request to be completed prematurely */
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opal_mutex_t lock;
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mca_pml_bfo_com_btl_t req_rdma[1];
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};
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typedef struct mca_pml_bfo_recv_request_t mca_pml_bfo_recv_request_t;
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OBJ_CLASS_DECLARATION(mca_pml_bfo_recv_request_t);
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static inline bool lock_recv_request(mca_pml_bfo_recv_request_t *recvreq)
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{
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return OPAL_THREAD_ADD32(&recvreq->req_lock, 1) == 1;
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}
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static inline bool unlock_recv_request(mca_pml_bfo_recv_request_t *recvreq)
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{
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return OPAL_THREAD_ADD32(&recvreq->req_lock, -1) == 0;
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}
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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_BFO_RECV_REQUEST_ALLOC(recvreq, rc) \
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do { \
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ompi_free_list_item_t* item; \
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rc = OMPI_SUCCESS; \
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OMPI_FREE_LIST_GET(&mca_pml_base_recv_requests, item, rc); \
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recvreq = (mca_pml_bfo_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_BFO_RECV_REQUEST_INIT( 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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MCA_PML_BASE_RECV_REQUEST_INIT( &(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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* Mark the request as completed at MPI level for internal purposes.
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*
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* @param recvreq (IN) Receive request.
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*/
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#define MCA_PML_BFO_RECV_REQUEST_MPI_COMPLETE( recvreq ) \
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do { \
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PERUSE_TRACE_COMM_EVENT( PERUSE_COMM_REQ_COMPLETE, \
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&(recvreq->req_recv.req_base), PERUSE_RECV ); \
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ompi_request_complete( &(recvreq->req_recv.req_base.req_ompi), true ); \
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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_BFO_RECV_REQUEST_RETURN(recvreq) \
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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_base_recv_requests, \
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(ompi_free_list_item_t*)(recvreq)); \
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}
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/**
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* Complete receive request. Request structure cannot be accessed after calling
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* this function any more.
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*
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* @param recvreq (IN) Receive request.
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*/
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static inline void
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recv_request_pml_complete(mca_pml_bfo_recv_request_t *recvreq)
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{
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size_t i;
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assert(false == recvreq->req_recv.req_base.req_pml_complete);
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if(recvreq->req_recv.req_bytes_packed > 0) {
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PERUSE_TRACE_COMM_EVENT( PERUSE_COMM_REQ_XFER_END,
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&recvreq->req_recv.req_base, PERUSE_RECV );
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}
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for(i = 0; i < recvreq->req_rdma_cnt; i++) {
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mca_mpool_base_registration_t* btl_reg = recvreq->req_rdma[i].btl_reg;
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if( NULL != btl_reg && btl_reg->mpool != NULL) {
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btl_reg->mpool->mpool_deregister( btl_reg->mpool, btl_reg );
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}
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}
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recvreq->req_rdma_cnt = 0;
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/* BFO FAILOVER CODE - begin */
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/* Initialize to a value that we indicate it is invalid */
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recvreq->req_msgseq = 42;
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/* BFO FAILOVER CODE - end */
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OPAL_THREAD_LOCK(&ompi_request_lock);
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if(true == recvreq->req_recv.req_base.req_free_called) {
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MCA_PML_BFO_RECV_REQUEST_RETURN(recvreq);
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} else {
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/* initialize request status */
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recvreq->req_recv.req_base.req_pml_complete = true;
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recvreq->req_recv.req_base.req_ompi.req_status._count =
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(int)recvreq->req_bytes_received;
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if (recvreq->req_recv.req_bytes_packed > recvreq->req_bytes_expected) {
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recvreq->req_recv.req_base.req_ompi.req_status._count =
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(int)recvreq->req_recv.req_bytes_packed;
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recvreq->req_recv.req_base.req_ompi.req_status.MPI_ERROR =
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MPI_ERR_TRUNCATE;
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}
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MCA_PML_BFO_RECV_REQUEST_MPI_COMPLETE(recvreq);
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}
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OPAL_THREAD_UNLOCK(&ompi_request_lock);
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}
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static inline bool
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recv_request_pml_complete_check(mca_pml_bfo_recv_request_t *recvreq)
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{
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#if OPAL_HAVE_THREAD_SUPPORT
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opal_atomic_rmb();
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#endif
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if(recvreq->req_match_received &&
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recvreq->req_bytes_received >= recvreq->req_recv.req_bytes_packed &&
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(0 == recvreq->req_events) && lock_recv_request(recvreq)) {
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recv_request_pml_complete(recvreq);
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return true;
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}
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return false;
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}
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extern void mca_pml_bfo_recv_req_start(mca_pml_bfo_recv_request_t *req);
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#define MCA_PML_BFO_RECV_REQUEST_START(r) mca_pml_bfo_recv_req_start(r)
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static inline void prepare_recv_req_converter(mca_pml_bfo_recv_request_t *req)
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{
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if( req->req_recv.req_base.req_datatype->super.size | req->req_recv.req_base.req_count ) {
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opal_convertor_copy_and_prepare_for_recv(
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req->req_recv.req_base.req_proc->proc_convertor,
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&(req->req_recv.req_base.req_datatype->super),
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req->req_recv.req_base.req_count,
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req->req_recv.req_base.req_addr,
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0,
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&req->req_recv.req_base.req_convertor);
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opal_convertor_get_unpacked_size(&req->req_recv.req_base.req_convertor,
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&req->req_bytes_expected);
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}
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}
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#define MCA_PML_BFO_RECV_REQUEST_MATCHED(request, hdr) \
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recv_req_matched(request, hdr)
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static inline void recv_req_matched(mca_pml_bfo_recv_request_t *req,
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mca_pml_bfo_match_hdr_t *hdr)
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{
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req->req_recv.req_base.req_ompi.req_status.MPI_SOURCE = hdr->hdr_src;
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req->req_recv.req_base.req_ompi.req_status.MPI_TAG = hdr->hdr_tag;
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req->req_match_received = true;
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/* BFO FAILOVER CODE - begin */
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req->req_msgseq = hdr->hdr_seq;
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/* BFO FAILOVER CODE - end */
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#if OPAL_HAVE_THREAD_SUPPORT
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opal_atomic_wmb();
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#endif
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if(req->req_recv.req_bytes_packed > 0) {
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#if OPAL_ENABLE_HETEROGENEOUS_SUPPORT
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if(MPI_ANY_SOURCE == req->req_recv.req_base.req_peer) {
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/* non wildcard prepared during post recv */
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prepare_recv_req_converter(req);
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}
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#endif /* OPAL_ENABLE_HETEROGENEOUS_SUPPORT */
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PERUSE_TRACE_COMM_EVENT(PERUSE_COMM_REQ_XFER_BEGIN,
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&req->req_recv.req_base, PERUSE_RECV);
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}
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}
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/**
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*
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*/
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#define MCA_PML_BFO_RECV_REQUEST_UNPACK( 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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bytes_delivered = 0; \
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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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size_t n, offset = seg_offset; \
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mca_btl_base_segment_t* segment = segments; \
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\
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OPAL_THREAD_LOCK(&request->lock); \
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for( n = 0; n < num_segments; n++, segment++ ) { \
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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 - offset; \
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iov[iov_count].iov_base = (IOVBASE_TYPE*) \
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((unsigned char*)segment->seg_addr.pval + offset); \
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iov_count++; \
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offset = 0; \
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} \
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} \
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PERUSE_TRACE_COMM_OMPI_EVENT (PERUSE_COMM_REQ_XFER_CONTINUE, \
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&(recvreq->req_recv.req_base), max_data, \
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PERUSE_RECV); \
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opal_convertor_set_position( &(request->req_recv.req_base.req_convertor), \
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&data_offset ); \
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opal_convertor_unpack( &(request)->req_recv.req_base.req_convertor, \
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iov, \
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&iov_count, \
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&max_data ); \
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bytes_delivered = max_data; \
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OPAL_THREAD_UNLOCK(&request->lock); \
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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_bfo_recv_request_progress_match(
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mca_pml_bfo_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_bfo_recv_request_progress_frag(
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mca_pml_bfo_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_bfo_recv_request_progress_rndv(
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mca_pml_bfo_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_bfo_recv_request_progress_rget(
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mca_pml_bfo_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,
|
||
|
|
size_t num_segments);
|
||
|
|
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
void mca_pml_bfo_recv_request_matched_probe(
|
||
|
|
mca_pml_bfo_recv_request_t* req,
|
||
|
|
struct mca_btl_base_module_t* btl,
|
||
|
|
mca_btl_base_segment_t* segments,
|
||
|
|
size_t num_segments);
|
||
|
|
|
||
|
|
/**
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
int mca_pml_bfo_recv_request_schedule_once(
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||
|
|
mca_pml_bfo_recv_request_t* req, mca_btl_base_module_t* start_btl);
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||
|
|
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||
|
|
static inline int mca_pml_bfo_recv_request_schedule_exclusive(
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||
|
|
mca_pml_bfo_recv_request_t* req,
|
||
|
|
mca_bml_base_btl_t* start_bml_btl)
|
||
|
|
{
|
||
|
|
int rc;
|
||
|
|
|
||
|
|
do {
|
||
|
|
rc = mca_pml_bfo_recv_request_schedule_once(req, start_bml_btl ? start_bml_btl->btl : NULL);
|
||
|
|
if(OPAL_SOS_GET_ERROR_CODE(rc) == OMPI_ERR_OUT_OF_RESOURCE)
|
||
|
|
break;
|
||
|
|
} while(!unlock_recv_request(req));
|
||
|
|
|
||
|
|
if(OMPI_SUCCESS == rc)
|
||
|
|
recv_request_pml_complete_check(req);
|
||
|
|
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void mca_pml_bfo_recv_request_schedule(
|
||
|
|
mca_pml_bfo_recv_request_t* req,
|
||
|
|
mca_bml_base_btl_t* start_bml_btl)
|
||
|
|
{
|
||
|
|
if(!lock_recv_request(req))
|
||
|
|
return;
|
||
|
|
|
||
|
|
(void)mca_pml_bfo_recv_request_schedule_exclusive(req, start_bml_btl);
|
||
|
|
}
|
||
|
|
|
||
|
|
#define MCA_PML_BFO_ADD_ACK_TO_PENDING(P, S, D, O) \
|
||
|
|
do { \
|
||
|
|
mca_pml_bfo_pckt_pending_t *_pckt; \
|
||
|
|
int _rc; \
|
||
|
|
\
|
||
|
|
MCA_PML_BFO_PCKT_PENDING_ALLOC(_pckt,_rc); \
|
||
|
|
_pckt->hdr.hdr_common.hdr_type = MCA_PML_BFO_HDR_TYPE_ACK; \
|
||
|
|
_pckt->hdr.hdr_ack.hdr_src_req.lval = (S); \
|
||
|
|
_pckt->hdr.hdr_ack.hdr_dst_req.pval = (D); \
|
||
|
|
_pckt->hdr.hdr_ack.hdr_send_offset = (O); \
|
||
|
|
_pckt->proc = (P); \
|
||
|
|
_pckt->bml_btl = NULL; \
|
||
|
|
OPAL_THREAD_LOCK(&mca_pml_bfo.lock); \
|
||
|
|
opal_list_append(&mca_pml_bfo.pckt_pending, \
|
||
|
|
(opal_list_item_t*)_pckt); \
|
||
|
|
OPAL_THREAD_UNLOCK(&mca_pml_bfo.lock); \
|
||
|
|
} while(0)
|
||
|
|
|
||
|
|
int mca_pml_bfo_recv_request_ack_send_btl(ompi_proc_t* proc,
|
||
|
|
mca_bml_base_btl_t* bml_btl, uint64_t hdr_src_req, void *hdr_dst_req,
|
||
|
|
uint64_t hdr_rdma_offset, bool nordma);
|
||
|
|
|
||
|
|
static inline int mca_pml_bfo_recv_request_ack_send(ompi_proc_t* proc,
|
||
|
|
uint64_t hdr_src_req, void *hdr_dst_req, uint64_t hdr_send_offset,
|
||
|
|
bool nordma)
|
||
|
|
{
|
||
|
|
size_t i;
|
||
|
|
mca_bml_base_btl_t* bml_btl;
|
||
|
|
mca_bml_base_endpoint_t* endpoint =
|
||
|
|
(mca_bml_base_endpoint_t*)proc->proc_bml;
|
||
|
|
|
||
|
|
for(i = 0; i < mca_bml_base_btl_array_get_size(&endpoint->btl_eager); i++) {
|
||
|
|
bml_btl = mca_bml_base_btl_array_get_next(&endpoint->btl_eager);
|
||
|
|
if(mca_pml_bfo_recv_request_ack_send_btl(proc, bml_btl, hdr_src_req,
|
||
|
|
hdr_dst_req, hdr_send_offset, nordma) == OMPI_SUCCESS)
|
||
|
|
return OMPI_SUCCESS;
|
||
|
|
}
|
||
|
|
|
||
|
|
MCA_PML_BFO_ADD_ACK_TO_PENDING(proc, hdr_src_req, hdr_dst_req,
|
||
|
|
hdr_send_offset);
|
||
|
|
|
||
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
||
|
|
}
|
||
|
|
|
||
|
|
int mca_pml_bfo_recv_request_get_frag(mca_pml_bfo_rdma_frag_t* frag);
|
||
|
|
|
||
|
|
/* This function tries to continue recvreq that stuck due to resource
|
||
|
|
* unavailability. Recvreq is added to recv_pending list if scheduling of put
|
||
|
|
* operation cannot be accomplished for some reason. */
|
||
|
|
void mca_pml_bfo_recv_request_process_pending(void);
|
||
|
|
|
||
|
|
END_C_DECLS
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|