27cea44a9c
* Make sure that the pval always writes to the correct portion of the
lval. This only matters on 32 bit big endian machines.
* On 32 bit machines when assigning to pval, the other 4 bytes of lval
weren't being written, which could lead to bogus data
We use macros so that there aren't casts all over the code and the pval
assignment can occur to the correct 4 bytes. Refs trac:587
This commit was SVN r12974.
The following Trac tickets were found above:
Ticket 587 --> https://svn.open-mpi.org/trac/ompi/ticket/587
492 строки
28 KiB
C
492 строки
28 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) 2004-2006 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) 2004-2006 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2006 Los Alamos National Security, LLC. All rights
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* 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 "ompi/mca/btl/btl.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 "pml_dr_endpoint.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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mca_pml_dr_comm_proc_t* req_proc;
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mca_pml_dr_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* req_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 = ompi_comm_peer_lookup( comm, dst ); \
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ompi_free_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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opal_list_append(&mca_pml_dr.send_active, \
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(opal_list_item_t*) sendreq); \
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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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addr, \
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count, \
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datatype, \
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peer, \
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tag, \
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comm, \
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sendmode, \
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persistent) \
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do { \
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mca_bml_base_endpoint_t* endpoint = \
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sendreq->req_send.req_base.req_proc->proc_bml; \
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bool do_csum = mca_pml_dr.enable_csum && \
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(endpoint->btl_flags_or & MCA_BTL_FLAGS_NEED_CSUM); \
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/* increment reference counts */ \
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OBJ_RETAIN(comm); \
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OBJ_RETAIN(datatype); \
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\
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OMPI_REQUEST_INIT(&(sendreq)->req_send.req_base.req_ompi, persistent); \
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(sendreq)->req_send.req_addr = addr; \
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(sendreq)->req_send.req_send_mode = sendmode; \
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(sendreq)->req_send.req_base.req_addr = addr; \
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(sendreq)->req_send.req_base.req_count = count; \
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(sendreq)->req_send.req_base.req_datatype = datatype; \
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(sendreq)->req_send.req_base.req_peer = (int32_t)peer; \
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(sendreq)->req_send.req_base.req_tag = (int32_t)tag; \
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(sendreq)->req_send.req_base.req_comm = comm; \
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(sendreq)->req_send.req_base.req_pml_complete = OPAL_INT_TO_BOOL(persistent); \
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(sendreq)->req_send.req_base.req_free_called = false; \
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(sendreq)->req_send.req_base.req_ompi.req_status._cancelled = 0; \
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\
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/* initialize datatype convertor for this request */ \
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/* if(count > 0) { */ \
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/* We will create a convertor specialized for the */ \
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/* remote architecture and prepared with the datatype. */ \
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ompi_convertor_copy_and_prepare_for_send( \
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(sendreq)->req_send.req_base.req_proc->proc_convertor, \
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(sendreq)->req_send.req_base.req_datatype, \
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(sendreq)->req_send.req_base.req_count, \
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(sendreq)->req_send.req_base.req_addr, \
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(do_csum ? CONVERTOR_WITH_CHECKSUM: 0), \
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&(sendreq)->req_send.req_convertor ); \
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ompi_convertor_get_packed_size(&(sendreq)->req_send.req_convertor, \
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&((sendreq)->req_send.req_bytes_packed) ); \
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/* } else { */ \
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/* (sendreq)->req_send.req_bytes_packed = 0; */ \
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/* } */ \
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} while(0)
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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_endpoint_t* pml_endpoint = \
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(mca_pml_dr_endpoint_t*)sendreq->req_send.req_base.req_proc->proc_pml; \
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mca_bml_base_endpoint_t* bml_endpoint = \
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sendreq->req_send.req_base.req_proc->proc_bml; \
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mca_pml_dr_comm_proc_t* proc = \
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comm->procs + sendreq->req_send.req_base.req_peer; \
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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(pml_endpoint == NULL || bml_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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bml_btl = mca_bml_base_btl_array_get_next(&bml_endpoint->btl_eager); \
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MCA_PML_DR_VFRAG_INIT(&sendreq->req_vfrag0); \
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sendreq->req_vfrag0.vf_id = OPAL_THREAD_ADD32(&pml_endpoint->vfrag_seq,1); \
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sendreq->req_vfrag0.bml_btl = bml_btl; \
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sendreq->req_vfrag = &sendreq->req_vfrag0; \
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sendreq->req_endpoint = pml_endpoint; \
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assert(pml_endpoint->bml_endpoint == bml_endpoint); \
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sendreq->req_proc = proc; \
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\
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sendreq->req_lock = 0; \
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sendreq->req_pipeline_depth = 1; \
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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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\
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/* select a btl */ \
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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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MCA_PML_BASE_REQUEST_MPI_COMPLETE( &((sendreq)->req_send.req_base.req_ompi) ); \
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} while(0)
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/*
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* The request fini is responsible for releasing all ressources at the PML
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* level. It will never be called directly from the upper level, as it should
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* only be an internal call to the PML. However, in the case when the user
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* already lost the MPI reference to the request (MPI_Request_free was called)
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* fini should completely free the MPI request.
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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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assert( false == sendreq->req_send.req_base.req_pml_complete ); \
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opal_list_remove_item(&mca_pml_dr.send_active, \
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(opal_list_item_t*) sendreq); \
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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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\
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if( false == sendreq->req_send.req_base.req_ompi.req_complete ) { \
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/* Should only be called for long messages (maybe synchronous) */ \
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MCA_PML_DR_SEND_REQUEST_MPI_COMPLETE(sendreq); \
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} \
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sendreq->req_send.req_base.req_pml_complete = true; \
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\
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if( sendreq->req_send.req_base.req_free_called ) { \
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MCA_PML_DR_SEND_REQUEST_RETURN( sendreq ); \
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} else { \
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if(sendreq->req_send.req_base.req_ompi.req_persistent && \
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(0 != sendreq->req_send.req_bytes_packed) ) { \
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/* rewind convertor */ \
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size_t offset = 0; \
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ompi_convertor_set_position(&sendreq->req_send.req_convertor, &offset); \
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} \
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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( &mca_pml_dr.send_requests, \
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(ompi_free_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, pml_endpoint, size, vfrag) \
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do { \
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size_t max_send_size = pml_endpoint->bml_endpoint->btl_max_send_size - \
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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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MCA_PML_DR_VFRAG_INIT(vfrag); \
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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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vfrag->vf_id = OPAL_THREAD_ADD32(&pml_endpoint->vfrag_seq,1); \
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vfrag->vf_offset = sendreq->req_send_offset; \
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vfrag->vf_max_send_size = max_send_size; \
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OMPI_PTR_SET_PVAL(vfrag->vf_send, sendreq); \
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sendreq->req_vfrag = vfrag; \
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} while(0)
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/*
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* Reschedule unacked fragments
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*/
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#define MCA_PML_DR_SEND_REQUEST_VFRAG_RETRANS(sendreq, vfrag) \
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do { \
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if(((vfrag)->vf_state & MCA_PML_DR_VFRAG_RETRANS) == 0) { \
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opal_list_append(&(sendreq)->req_retrans, (opal_list_item_t*)(vfrag));\
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(vfrag)->vf_state |= MCA_PML_DR_VFRAG_RETRANS; \
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} \
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(vfrag)->vf_state &= ~MCA_PML_DR_VFRAG_NACKED; \
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(vfrag)->vf_idx = 0; \
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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(&ompi_request_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(&ompi_request_lock); \
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if(NULL == sendreq) \
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break; \
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opal_list_append(&mca_pml_dr.send_active, \
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(opal_list_item_t*) sendreq); \
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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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* Requeue first fragment of message for retransmission
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*/
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#define MCA_PML_DR_SEND_REQUEST_EAGER_RETRY(sendreq, vfrag) \
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do { \
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mca_btl_base_descriptor_t *des_old, *des_new; \
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OPAL_THREAD_ADD64(&vfrag->vf_pending,1); \
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MCA_PML_DR_DEBUG(0, \
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(0, "%s:%d:%s: retransmitting eager\n", \
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__FILE__, __LINE__, __func__)); \
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assert(sendreq->req_descriptor->des_src != NULL); \
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\
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OPAL_THREAD_ADD_SIZE_T(&sendreq->req_pipeline_depth,1); \
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OPAL_THREAD_ADD64(&(vfrag)->vf_pending,1); \
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(vfrag)->vf_state &= ~MCA_PML_DR_VFRAG_NACKED; \
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\
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des_old = sendreq->req_descriptor; \
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mca_bml_base_alloc(vfrag->bml_btl, &des_new, \
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des_old->des_src->seg_len); \
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sendreq->req_descriptor = des_new; \
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memcpy(OMPI_PTR_GET_PVAL(des_new->des_src->seg_addr), \
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OMPI_PTR_GET_PVAL(des_old->des_src->seg_addr), \
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des_old->des_src->seg_len); \
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des_new->des_flags = des_old->des_flags; \
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des_new->des_cbdata = des_old->des_cbdata; \
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des_new->des_cbfunc = des_old->des_cbfunc; \
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mca_bml_base_send(vfrag->bml_btl, des_new, MCA_BTL_TAG_PML); \
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} while(0)
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/*
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* Requeue first fragment of message for retransmission
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*/
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#define MCA_PML_DR_SEND_REQUEST_RNDV_PROBE(sendreq, vfrag) \
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do { \
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|
mca_pml_dr_endpoint_t* endpoint = sendreq->req_endpoint; \
|
|
mca_bml_base_btl_t* bml_btl = \
|
|
mca_bml_base_btl_array_get_next(&endpoint->bml_endpoint->btl_eager); \
|
|
mca_btl_base_descriptor_t *des_old, *des_new; \
|
|
mca_pml_dr_hdr_t *hdr; \
|
|
bool do_csum = mca_pml_dr.enable_csum && \
|
|
(bml_btl->btl_flags & MCA_BTL_FLAGS_NEED_CSUM); \
|
|
MCA_PML_DR_DEBUG(0,(0, "%s:%d:%s: (re)transmitting rndv probe\n", \
|
|
__FILE__, __LINE__, __func__)); \
|
|
OPAL_THREAD_ADD_SIZE_T(&sendreq->req_pipeline_depth,1); \
|
|
OPAL_THREAD_ADD64(&vfrag->vf_pending,1); \
|
|
(vfrag)->vf_state &= ~MCA_PML_DR_VFRAG_NACKED; \
|
|
\
|
|
assert(sendreq->req_descriptor->des_src != NULL); \
|
|
mca_bml_base_alloc(bml_btl, &des_new, \
|
|
sizeof(mca_pml_dr_rendezvous_hdr_t)); \
|
|
des_old = sendreq->req_descriptor; \
|
|
/* build hdr */ \
|
|
hdr = (mca_pml_dr_hdr_t*) OMPI_PTR_GET_PVAL(des_new->des_src->seg_addr); \
|
|
hdr->hdr_common.hdr_flags = 0; \
|
|
hdr->hdr_common.hdr_type = MCA_PML_DR_HDR_TYPE_RNDV; \
|
|
hdr->hdr_common.hdr_dst = endpoint->dst; \
|
|
hdr->hdr_common.hdr_ctx = sendreq->req_send.req_base.req_comm->c_contextid; \
|
|
hdr->hdr_common.hdr_src = endpoint->src; \
|
|
hdr->hdr_match.hdr_tag = sendreq->req_send.req_base.req_tag; \
|
|
hdr->hdr_match.hdr_seq = sendreq->req_send.req_base.req_sequence; \
|
|
OMPI_PTR_SET_PVAL(hdr->hdr_match.hdr_src_ptr, &sendreq->req_vfrag0); \
|
|
hdr->hdr_match.hdr_csum = OPAL_CSUM_ZERO; \
|
|
hdr->hdr_common.hdr_vid = sendreq->req_vfrag0.vf_id; \
|
|
hdr->hdr_rndv.hdr_msg_length = sendreq->req_send.req_bytes_packed; \
|
|
hdr->hdr_common.hdr_csum = (do_csum ? \
|
|
opal_csum(hdr, sizeof(mca_pml_dr_rendezvous_hdr_t)): OPAL_CSUM_ZERO); \
|
|
des_new->des_flags = des_old->des_flags; \
|
|
des_new->des_cbdata = des_old->des_cbdata; \
|
|
des_new->des_cbfunc = des_old->des_cbfunc; \
|
|
mca_bml_base_send(bml_btl, des_new, MCA_BTL_TAG_PML); \
|
|
} while(0)
|
|
|
|
/**
|
|
* Start the specified request
|
|
*/
|
|
|
|
int mca_pml_dr_send_request_start_buffered(
|
|
mca_pml_dr_send_request_t* sendreq,
|
|
mca_bml_base_btl_t* bml_btl,
|
|
size_t size);
|
|
|
|
int mca_pml_dr_send_request_start_copy(
|
|
mca_pml_dr_send_request_t* sendreq,
|
|
mca_bml_base_btl_t* bml_btl,
|
|
size_t size);
|
|
|
|
int mca_pml_dr_send_request_start_prepare(
|
|
mca_pml_dr_send_request_t* sendreq,
|
|
mca_bml_base_btl_t* bml_btl,
|
|
size_t size);
|
|
|
|
int mca_pml_dr_send_request_start_rndv(
|
|
mca_pml_dr_send_request_t* sendreq,
|
|
mca_bml_base_btl_t* bml_btl,
|
|
size_t size,
|
|
int flags);
|
|
|
|
/**
|
|
* Schedule additional fragments
|
|
*/
|
|
int mca_pml_dr_send_request_schedule(
|
|
mca_pml_dr_send_request_t* sendreq);
|
|
|
|
int mca_pml_dr_send_request_reschedule(
|
|
mca_pml_dr_send_request_t* sendreq,
|
|
mca_pml_dr_vfrag_t* vfrag);
|
|
|
|
/**
|
|
* Acknowledgment of vfrags
|
|
*/
|
|
void mca_pml_dr_send_request_match_ack(
|
|
mca_btl_base_module_t* btl,
|
|
mca_pml_dr_ack_hdr_t*);
|
|
|
|
void mca_pml_dr_send_request_rndv_ack(
|
|
mca_btl_base_module_t* btl,
|
|
mca_pml_dr_ack_hdr_t*);
|
|
|
|
void mca_pml_dr_send_request_frag_ack(
|
|
mca_btl_base_module_t* btl,
|
|
mca_pml_dr_ack_hdr_t*);
|
|
|
|
void mca_pml_dr_sendreq_cleanup_active(mca_btl_base_module_t* btl);
|
|
|
|
|
|
#if defined(c_plusplus) || defined(__cplusplus)
|
|
}
|
|
#endif
|
|
#endif
|
|
|