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
401 строка
20 KiB
C
401 строка
20 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) 2004-2005 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_OB1_RECV_REQUEST_H
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#define OMPI_PML_OB1_RECV_REQUEST_H
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#include "pml_ob1.h"
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#include "pml_ob1_rdma.h"
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#include "pml_ob1_rdmafrag.h"
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#include "ompi/proc/proc.h"
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#include "ompi/mca/pml/ob1/pml_ob1_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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#include "ompi/datatype/datatype.h"
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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struct mca_pml_ob1_recv_request_t {
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mca_pml_base_recv_request_t req_recv;
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ompi_ptr_t req_send;
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#if OMPI_HAVE_THREAD_SUPPORT
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volatile int32_t req_lock;
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#else
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int32_t req_lock;
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#endif
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size_t req_pipeline_depth;
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size_t req_bytes_received;
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size_t req_bytes_delivered;
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size_t req_rdma_offset;
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mca_pml_ob1_rdma_btl_t req_rdma[MCA_PML_OB1_MAX_RDMA_PER_REQUEST];
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uint32_t req_rdma_cnt;
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uint32_t req_rdma_idx;
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bool req_pending;
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bool req_ack_sent; /**< whether ack was sent to the sender */
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};
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typedef struct mca_pml_ob1_recv_request_t mca_pml_ob1_recv_request_t;
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OBJ_CLASS_DECLARATION(mca_pml_ob1_recv_request_t);
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/**
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* Allocate a recv request from the modules free list.
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*
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* @param rc (OUT) OMPI_SUCCESS or error status on failure.
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* @return Receive request.
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*/
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#define MCA_PML_OB1_RECV_REQUEST_ALLOC(recvreq, rc) \
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do { \
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ompi_free_list_item_t* item; \
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rc = OMPI_SUCCESS; \
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OMPI_FREE_LIST_GET(&mca_pml_ob1.recv_requests, item, rc); \
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recvreq = (mca_pml_ob1_recv_request_t*)item; \
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} while(0)
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/**
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* Initialize a receive request with call parameters.
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*
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* @param request (IN) Receive request.
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* @param addr (IN) User buffer.
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* @param count (IN) Number of elements of indicated datatype.
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* @param datatype (IN) User defined datatype.
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* @param src (IN) Source rank w/in the communicator.
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* @param tag (IN) User defined tag.
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* @param comm (IN) Communicator.
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* @param persistent (IN) Is this a ersistent request.
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*/
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#define MCA_PML_OB1_RECV_REQUEST_INIT( 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_OB1_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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MCA_PML_BASE_REQUEST_MPI_COMPLETE( &(recvreq->req_recv.req_base.req_ompi) ); \
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} while (0)
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/**
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* Return a recv request to the modules free list.
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*
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* @param recvreq (IN) Receive request.
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*/
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#define MCA_PML_OB1_RECV_REQUEST_PML_COMPLETE(recvreq) \
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do { \
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size_t r; \
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\
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assert( false == recvreq->req_recv.req_base.req_pml_complete ); \
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\
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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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\
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for( r = 0; r < recvreq->req_rdma_cnt; r++ ) { \
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mca_mpool_base_registration_t* btl_reg = recvreq->req_rdma[r].btl_reg; \
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if( NULL != btl_reg ) { \
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btl_reg->mpool->mpool_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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\
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OPAL_THREAD_LOCK(&ompi_request_lock); \
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\
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if( true == recvreq->req_recv.req_base.req_free_called ) { \
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MCA_PML_OB1_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_bytes_received > recvreq->req_bytes_delivered) { \
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recvreq->req_recv.req_base.req_ompi.req_status._count = \
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(int)recvreq->req_bytes_delivered; \
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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_OB1_RECV_REQUEST_MPI_COMPLETE( recvreq ); \
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} \
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OPAL_THREAD_UNLOCK(&ompi_request_lock); \
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} while(0)
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/*
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* Free the PML receive request
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*/
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#define MCA_PML_OB1_RECV_REQUEST_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_ob1.recv_requests, \
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(ompi_free_list_item_t*)(recvreq)); \
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}
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/**
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* Attempt to match the request against the unexpected fragment list
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* for all source ranks w/in the communicator.
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*
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* @param request (IN) Request to match.
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*/
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void mca_pml_ob1_recv_request_match_wild(mca_pml_ob1_recv_request_t* request);
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/**
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* Attempt to match the request against the unexpected fragment list
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* for a specific source rank.
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*
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* @param request (IN) Request to match.
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*/
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void mca_pml_ob1_recv_request_match_specific(mca_pml_ob1_recv_request_t* request);
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/**
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* Initialize diagnostic code for tracing rdma protocol timing
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*/
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/**
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* Start an initialized request.
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*
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* @param request Receive request.
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* @return OMPI_SUCESS or error status on failure.
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*/
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#define MCA_PML_OB1_RECV_REQUEST_START(request) \
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do { \
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/* init/re-init the request */ \
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(request)->req_lock = 0; \
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(request)->req_pipeline_depth = 0; \
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(request)->req_bytes_received = 0; \
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(request)->req_bytes_delivered = 0; \
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/* What about req_rdma_cnt ? */ \
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(request)->req_rdma_idx = 0; \
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(request)->req_pending = false; \
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(request)->req_ack_sent = false; \
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\
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MCA_PML_BASE_RECV_START( &(request)->req_recv.req_base ); \
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\
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/* attempt to match posted recv */ \
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if((request)->req_recv.req_base.req_peer == OMPI_ANY_SOURCE) { \
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mca_pml_ob1_recv_request_match_wild(request); \
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} else { \
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(request)->req_recv.req_base.req_proc = \
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(request)->req_recv.req_base.req_comm->c_pml_comm->procs \
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[(request)->req_recv.req_base.req_peer].ompi_proc; \
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if( (0 != (request)->req_recv.req_base.req_datatype->size) && \
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(0 != (request)->req_recv.req_base.req_count) ) { \
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ompi_convertor_copy_and_prepare_for_recv( \
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(request)->req_recv.req_base.req_proc->proc_convertor, \
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(request)->req_recv.req_base.req_datatype, \
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(request)->req_recv.req_base.req_count, \
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(request)->req_recv.req_base.req_addr, \
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0, \
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&(request)->req_recv.req_convertor ); \
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ompi_convertor_get_unpacked_size( &(request)->req_recv.req_convertor, \
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&(request)->req_bytes_delivered ); \
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} \
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mca_pml_ob1_recv_request_match_specific(request); \
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} \
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} while (0)
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/**
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*
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*/
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#define MCA_PML_OB1_RECV_REQUEST_MATCHED( request, hdr ) \
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do { \
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(request)->req_recv.req_base.req_ompi.req_status.MPI_SOURCE = (hdr)->hdr_src; \
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(request)->req_recv.req_base.req_ompi.req_status.MPI_TAG = (hdr)->hdr_tag; \
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\
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PERUSE_TRACE_COMM_EVENT( PERUSE_COMM_MSG_MATCH_POSTED_REQ, \
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&((request)->req_recv.req_base), PERUSE_RECV ); \
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\
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if((request)->req_recv.req_bytes_packed > 0) { \
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if( MPI_ANY_SOURCE == (request)->req_recv.req_base.req_peer ) { \
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ompi_convertor_copy_and_prepare_for_recv( \
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(request)->req_recv.req_base.req_proc->proc_convertor, \
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(request)->req_recv.req_base.req_datatype, \
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(request)->req_recv.req_base.req_count, \
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(request)->req_recv.req_base.req_addr, \
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0, \
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&(request)->req_recv.req_convertor ); \
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ompi_convertor_get_unpacked_size( &(request)->req_recv.req_convertor, \
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&(request)->req_bytes_delivered ); \
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} \
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PERUSE_TRACE_COMM_EVENT (PERUSE_COMM_REQ_XFER_BEGIN, \
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&((request)->req_recv.req_base), PERUSE_RECV); \
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} \
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} while (0)
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/**
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*
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*/
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#define MCA_PML_OB1_RECV_REQUEST_UNPACK( \
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request, \
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segments, \
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num_segments, \
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seg_offset, \
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data_offset, \
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bytes_received, \
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bytes_delivered) \
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do { \
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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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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 - seg_offset; \
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iov[iov_count].iov_base = (IOVBASE_TYPE*)((unsigned char*)OMPI_PTR_GET_PVAL(segment->seg_addr) + seg_offset); \
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iov_count++; \
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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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ompi_convertor_set_position( &(request->req_recv.req_convertor), \
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&data_offset ); \
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ompi_convertor_unpack( &(request)->req_recv.req_convertor, \
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iov, \
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&iov_count, \
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&max_data ); \
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bytes_delivered = max_data; \
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} \
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} while (0)
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/**
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*
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*/
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void mca_pml_ob1_recv_request_progress(
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mca_pml_ob1_recv_request_t* req,
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struct mca_btl_base_module_t* btl,
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mca_btl_base_segment_t* segments,
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size_t num_segments);
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/**
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*
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*/
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void mca_pml_ob1_recv_request_matched_probe(
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mca_pml_ob1_recv_request_t* req,
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struct mca_btl_base_module_t* btl,
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mca_btl_base_segment_t* segments,
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size_t num_segments);
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/**
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*
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*/
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int mca_pml_ob1_recv_request_schedule_exclusive(
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mca_pml_ob1_recv_request_t* req);
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static inline void mca_pml_ob1_recv_request_schedule(
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mca_pml_ob1_recv_request_t* req)
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{
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if(OPAL_THREAD_ADD32(&req->req_lock,1) == 1)
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mca_pml_ob1_recv_request_schedule_exclusive(req);
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}
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#define MCA_PML_OB1_ADD_ACK_TO_PENDING(P, S, D, O) \
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do { \
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mca_pml_ob1_pckt_pending_t *_pckt; \
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int _rc; \
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\
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MCA_PML_OB1_PCKT_PENDING_ALLOC(_pckt,_rc); \
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_pckt->hdr.hdr_common.hdr_type = MCA_PML_OB1_HDR_TYPE_ACK; \
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OMPI_PTR_SET_LVAL(_pckt->hdr.hdr_ack.hdr_src_req, (S)); \
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OMPI_PTR_SET_PVAL(_pckt->hdr.hdr_ack.hdr_dst_req, (D)); \
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_pckt->hdr.hdr_ack.hdr_rdma_offset = (O); \
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_pckt->proc = (P); \
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_pckt->bml_btl = NULL; \
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OPAL_THREAD_LOCK(&mca_pml_ob1.lock); \
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opal_list_append(&mca_pml_ob1.pckt_pending, \
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(opal_list_item_t*)_pckt); \
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OPAL_THREAD_UNLOCK(&mca_pml_ob1.lock); \
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} while(0)
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int mca_pml_ob1_recv_request_ack_send_btl(ompi_proc_t* proc,
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mca_bml_base_btl_t* bml_btl, uint64_t hdr_src_req, void *hdr_dst_req,
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uint64_t hdr_rdma_offset);
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static inline int mca_pml_ob1_recv_request_ack_send(ompi_proc_t* proc,
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uint64_t hdr_src_req, void *hdr_dst_req, uint64_t hdr_rdma_offset)
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{
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size_t i;
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mca_bml_base_btl_t* bml_btl;
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mca_bml_base_endpoint_t* endpoint =
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(mca_bml_base_endpoint_t*)proc->proc_bml;
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for(i = 0; i < mca_bml_base_btl_array_get_size(&endpoint->btl_eager); i++) {
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bml_btl = mca_bml_base_btl_array_get_next(&endpoint->btl_eager);
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if(mca_pml_ob1_recv_request_ack_send_btl(proc, bml_btl, hdr_src_req,
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hdr_dst_req, hdr_rdma_offset) == OMPI_SUCCESS)
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return OMPI_SUCCESS;
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}
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MCA_PML_OB1_ADD_ACK_TO_PENDING(proc, hdr_src_req, hdr_dst_req,
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hdr_rdma_offset);
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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int mca_pml_ob1_recv_request_get_frag(mca_pml_ob1_rdma_frag_t* frag);
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/* This function tries to continue recvreq that stuck due to resource
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* unavailability. Recvreq is added to recv_pending list if scheduling of put
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* operation cannot be accomplished for some reason. */
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void mca_pml_ob1_recv_request_process_pending(void);
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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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