392 строки
21 KiB
C
392 строки
21 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_DR_SEND_REQUEST_H
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#define OMPI_PML_DR_SEND_REQUEST_H
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#include "opal/util/crc.h"
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#include "ompi_config.h"
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#include "ompi/datatype/convertor.h"
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#include "ompi/mca/btl/btl.h"
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#include "ompi/mca/pml/base/pml_base_sendreq.h"
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#include "ompi/mca/mpool/base/base.h"
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#include "ompi/mca/bml/bml.h"
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#include "pml_dr_proc.h"
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#include "pml_dr_comm.h"
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#include "pml_dr_hdr.h"
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#include "pml_dr_vfrag.h"
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#include "opal/event/event.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_dr_send_request_t {
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mca_pml_base_send_request_t req_send;
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/* ompi_proc_t* req_proc; */
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mca_bml_base_endpoint_t* req_endpoint;
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#if OMPI_HAVE_THREAD_SUPPORT
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volatile int32_t req_state;
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volatile int32_t req_lock;
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#else
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int32_t req_state;
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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_delivered;
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size_t req_send_offset;
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mca_pml_dr_vfrag_t* req_vfrag;
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mca_pml_dr_vfrag_t req_vfrag0;
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opal_list_t req_retrans;
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mca_btl_base_descriptor_t* descriptor; /* descriptor for first frag, retransmission */
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};
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typedef struct mca_pml_dr_send_request_t mca_pml_dr_send_request_t;
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OBJ_CLASS_DECLARATION(mca_pml_dr_send_request_t);
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#define MCA_PML_DR_SEND_REQUEST_ALLOC( \
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comm, \
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dst, \
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sendreq, \
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rc) \
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{ \
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ompi_proc_t *proc = \
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comm->c_pml_procs[dst]->proc_ompi; \
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opal_list_item_t* item; \
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\
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if(NULL == proc) { \
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rc = OMPI_ERR_OUT_OF_RESOURCE; \
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} else { \
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rc = OMPI_SUCCESS; \
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OMPI_FREE_LIST_WAIT(&mca_pml_dr.send_requests, item, rc); \
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sendreq = (mca_pml_dr_send_request_t*)item; \
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sendreq->req_send.req_base.req_proc = proc; \
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} \
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}
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#define MCA_PML_DR_SEND_REQUEST_INIT( \
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sendreq, \
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buf, \
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count, \
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datatype, \
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dst, \
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tag, \
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comm, \
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sendmode, \
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persistent) \
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{ \
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MCA_PML_BASE_SEND_REQUEST_INIT(&sendreq->req_send, \
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buf, \
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count, \
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datatype, \
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dst, \
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tag, \
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comm, \
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sendmode, \
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persistent); \
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}
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/**
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* Start a send request.
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*/
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#define MCA_PML_DR_SEND_REQUEST_START(sendreq, rc) \
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do { \
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mca_pml_dr_comm_t* comm = sendreq->req_send.req_base.req_comm->c_pml_comm; \
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mca_pml_dr_comm_proc_t* proc = comm->procs + sendreq->req_send.req_base.req_peer; \
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mca_bml_base_endpoint_t* endpoint = \
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(mca_bml_base_endpoint_t*)sendreq->req_send.req_base.req_proc->proc_pml; \
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mca_bml_base_btl_t* bml_btl; \
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size_t size = sendreq->req_send.req_bytes_packed; \
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size_t eager_limit; \
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if(endpoint == NULL) { \
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rc = OMPI_ERR_UNREACH; \
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break; \
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} \
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\
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sendreq->req_lock = 0; \
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sendreq->req_pipeline_depth = 0; \
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sendreq->req_bytes_delivered = 0; \
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sendreq->req_state = 0; \
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sendreq->req_send_offset = 0; \
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sendreq->req_send.req_base.req_pml_complete = false; \
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sendreq->req_send.req_base.req_ompi.req_complete = false; \
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sendreq->req_send.req_base.req_ompi.req_state = OMPI_REQUEST_ACTIVE; \
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sendreq->req_send.req_base.req_ompi.req_status._cancelled = 0; \
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sendreq->req_send.req_base.req_sequence = OPAL_THREAD_ADD32(&proc->send_sequence,1); \
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sendreq->req_endpoint = endpoint; \
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sendreq->req_vfrag0.vf_id = OPAL_THREAD_ADD32(&proc->vfrag_id,1); \
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sendreq->req_vfrag0.vf_ack = 0; \
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sendreq->req_vfrag0.vf_mask_processed = 0; \
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sendreq->req_vfrag = &sendreq->req_vfrag0; \
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\
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/* select a btl */ \
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bml_btl = mca_bml_base_btl_array_get_next(&endpoint->btl_eager); \
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eager_limit = bml_btl->btl_eager_limit - sizeof(mca_pml_dr_hdr_t); \
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if(size <= eager_limit) { \
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switch(sendreq->req_send.req_send_mode) { \
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case MCA_PML_BASE_SEND_SYNCHRONOUS: \
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rc = mca_pml_dr_send_request_start_rndv(sendreq, bml_btl, size, 0); \
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break; \
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case MCA_PML_BASE_SEND_BUFFERED: \
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rc = mca_pml_dr_send_request_start_copy(sendreq, bml_btl, size); \
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break; \
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case MCA_PML_BASE_SEND_COMPLETE: \
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rc = mca_pml_dr_send_request_start_prepare(sendreq, bml_btl, size); \
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break; \
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default: \
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if (bml_btl->btl_flags & MCA_BTL_FLAGS_SEND_INPLACE) { \
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rc = mca_pml_dr_send_request_start_prepare(sendreq, bml_btl, size); \
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} else { \
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rc = mca_pml_dr_send_request_start_copy(sendreq, bml_btl, size); \
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} \
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break; \
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} \
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} else { \
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size = eager_limit; \
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if(sendreq->req_send.req_send_mode == MCA_PML_BASE_SEND_BUFFERED) { \
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rc = mca_pml_dr_send_request_start_buffered(sendreq, bml_btl, size); \
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} else { \
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rc = mca_pml_dr_send_request_start_rndv(sendreq, bml_btl, size, 0); \
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} \
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} \
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} while (0)
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/*
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* Mark a send request as completed at the MPI level.
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*/
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#define MCA_PML_DR_SEND_REQUEST_MPI_COMPLETE(sendreq) \
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do { \
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(sendreq)->req_send.req_base.req_ompi.req_status.MPI_SOURCE = \
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(sendreq)->req_send.req_base.req_comm->c_my_rank; \
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(sendreq)->req_send.req_base.req_ompi.req_status.MPI_TAG = \
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(sendreq)->req_send.req_base.req_tag; \
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(sendreq)->req_send.req_base.req_ompi.req_status.MPI_ERROR = OMPI_SUCCESS; \
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(sendreq)->req_send.req_base.req_ompi.req_status._count = \
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(sendreq)->req_send.req_bytes_packed; \
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(sendreq)->req_send.req_base.req_ompi.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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/*
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* The PML has completed a send request. Note that this request
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* may have been orphaned by the user or have already completed
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* at the MPI level.
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*/
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#define MCA_PML_DR_SEND_REQUEST_PML_COMPLETE(sendreq) \
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do { \
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/* request completed at pml level */ \
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assert((sendreq)->req_send.req_base.req_pml_complete == false); \
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(sendreq)->req_send.req_base.req_pml_complete = true; \
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\
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/* user has already released the request so simply free it */ \
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if((sendreq)->req_send.req_base.req_free_called) { \
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/* if buffered send - release any resources */ \
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if ((sendreq)->req_send.req_send_mode == MCA_PML_BASE_SEND_BUFFERED && \
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(sendreq)->req_send.req_addr != (sendreq)->req_send.req_base.req_addr) { \
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mca_pml_base_bsend_request_fini((ompi_request_t*)sendreq); \
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} \
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MCA_PML_DR_SEND_REQUEST_RETURN(sendreq); \
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/* is request complete at mpi level */ \
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} else if ((sendreq)->req_send.req_base.req_ompi.req_complete == false) { \
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MCA_PML_DR_SEND_REQUEST_MPI_COMPLETE(sendreq); \
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/* buffered send - release any resources */ \
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} else if ((sendreq)->req_send.req_send_mode == MCA_PML_BASE_SEND_BUFFERED && \
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(sendreq)->req_send.req_addr != (sendreq)->req_send.req_base.req_addr) { \
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mca_pml_base_bsend_request_fini((ompi_request_t*)sendreq); \
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} \
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} while (0)
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/*
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* Release resources associated with a request
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*/
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#define MCA_PML_DR_SEND_REQUEST_RETURN(sendreq) \
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do { \
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/* Let the base handle the reference counts */ \
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MCA_PML_BASE_SEND_REQUEST_FINI((&(sendreq)->req_send)); \
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OMPI_FREE_LIST_RETURN( \
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&mca_pml_dr.send_requests, (opal_list_item_t*)sendreq); \
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} while(0)
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/*
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* Lookup/allocate a vfrag for the pending send
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*/
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#define MCA_PML_DR_SEND_REQUEST_VFRAG_INIT(sendreq, endpoint, size, vfrag) \
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do { \
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mca_pml_dr_comm_t* comm = sendreq->req_send.req_base.req_comm->c_pml_comm; \
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mca_pml_dr_comm_proc_t* proc = comm->procs + sendreq->req_send.req_base.req_peer; \
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size_t max_send_size = endpoint->btl_max_send_size - sizeof(mca_pml_dr_frag_hdr_t); \
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size_t div = size / max_send_size; \
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\
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if(div == 0) { \
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vfrag->vf_len = 1; \
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vfrag->vf_size = size; \
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vfrag->vf_mask = 1; \
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} else if(div > 64) { \
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vfrag->vf_len = 64; \
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vfrag->vf_size = (max_send_size << 6); /* size * 64 */ \
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vfrag->vf_mask = ~(uint64_t)0; \
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} else if (div == 64) { \
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size_t mod = size % max_send_size; \
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vfrag->vf_len = 64; \
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vfrag->vf_size = (mod ? (size - mod) : size); \
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vfrag->vf_mask = ~(uint64_t)0; \
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} else { \
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size_t mod = size % max_send_size; \
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vfrag->vf_len = div + (mod ? 1 : 0); \
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vfrag->vf_size = size; \
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if(vfrag->vf_len == 64) \
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vfrag->vf_mask = ~(uint64_t)0; \
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else \
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vfrag->vf_mask = (((uint64_t)1 << vfrag->vf_len) - (uint64_t)1); \
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} \
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\
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vfrag->vf_id = OPAL_THREAD_ADD32(&proc->vfrag_id,1); \
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vfrag->vf_offset = sendreq->req_send_offset; \
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vfrag->vf_ack = 0; \
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vfrag->vf_idx = 0; \
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vfrag->vf_mask_processed = 0; \
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vfrag->vf_max_send_size = max_send_size; \
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vfrag->vf_send.pval = sendreq; \
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sendreq->req_vfrag = vfrag; \
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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_DR_SEND_REQUEST_VFRAG_RETRANS(sendreq,hdr,vfrag) \
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do { \
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opal_list_item_t* item; \
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vfrag = NULL; \
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for(item = opal_list_get_first(&(sendreq)->req_retrans); \
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item != opal_list_get_end(&(sendreq)->req_retrans); \
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item = opal_list_get_next(item)) { \
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mca_pml_dr_vfrag_t* vf = (mca_pml_dr_vfrag_t*)item; \
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if(vf->vf_id == (hdr)->hdr_vid) { \
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vfrag = vf; \
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break; \
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} \
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} \
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} while(0)
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/*
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* Update bytes delivered on request based on supplied descriptor
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*/
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#define MCA_PML_DR_SEND_REQUEST_SET_BYTES_DELIVERED(sendreq, vfrag, hdrlen) \
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do { \
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sendreq->req_bytes_delivered += vfrag->vf_size; \
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} while(0)
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/*
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* Attempt to process any pending requests
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*/
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#define MCA_PML_DR_SEND_REQUEST_PROCESS_PENDING() \
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do { \
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/* advance pending requests */ \
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while(opal_list_get_size(&mca_pml_dr.send_pending)) { \
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mca_pml_dr_send_request_t* sendreq; \
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OPAL_THREAD_LOCK(&mca_pml_dr.lock); \
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sendreq = (mca_pml_dr_send_request_t*) \
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opal_list_remove_first(&mca_pml_dr.send_pending); \
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OPAL_THREAD_UNLOCK(&mca_pml_dr.lock); \
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if(NULL == sendreq) \
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break; \
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mca_pml_dr_send_request_schedule(sendreq); \
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} \
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} while (0)
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/**
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* Start the specified request
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*/
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int mca_pml_dr_send_request_start_buffered(
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mca_pml_dr_send_request_t* sendreq,
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mca_bml_base_btl_t* bml_btl,
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size_t size);
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int mca_pml_dr_send_request_start_copy(
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mca_pml_dr_send_request_t* sendreq,
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mca_bml_base_btl_t* bml_btl,
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size_t size);
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int mca_pml_dr_send_request_start_prepare(
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mca_pml_dr_send_request_t* sendreq,
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mca_bml_base_btl_t* bml_btl,
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size_t size);
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int mca_pml_dr_send_request_start_rndv(
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mca_pml_dr_send_request_t* sendreq,
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mca_bml_base_btl_t* bml_btl,
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size_t size,
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int flags);
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/**
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* Schedule additional fragments
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*/
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int mca_pml_dr_send_request_schedule(
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mca_pml_dr_send_request_t* sendreq);
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int mca_pml_dr_send_request_reschedule(
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mca_pml_dr_send_request_t* sendreq,
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mca_pml_dr_vfrag_t* vfrag);
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/**
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* Acknowledgment of vfrags
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*/
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void mca_pml_dr_send_request_match_ack(
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mca_btl_base_module_t* btl,
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mca_pml_dr_ack_hdr_t*);
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void mca_pml_dr_send_request_rndv_ack(
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mca_btl_base_module_t* btl,
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mca_pml_dr_ack_hdr_t*);
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void mca_pml_dr_send_request_frag_ack(
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mca_btl_base_module_t* btl,
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mca_pml_dr_ack_hdr_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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