5f2d82347f
be locally completing. for now using synchronous calls until the new functionality is available. then will change the code to use the new PML send flags. This commit was SVN r8867.
101 строка
3.6 KiB
C
101 строка
3.6 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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#include "ompi_config.h"
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#include "coll_tuned.h"
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#include "mpi.h"
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#include "ompi/include/constants.h"
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#include "datatype/datatype.h"
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#include "communicator/communicator.h"
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#include "mca/coll/coll.h"
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#include "mca/coll/base/coll_tags.h"
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#include "mca/pml/pml.h"
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#include "coll_tuned_util.h"
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int ompi_coll_tuned_sendrecv_actual( void* sendbuf, int scount, ompi_datatype_t* sdatatype,
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int dest, int stag,
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void* recvbuf, int rcount, ompi_datatype_t* rdatatype,
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int source, int rtag,
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struct ompi_communicator_t* comm,
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ompi_status_public_t* status )
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{ /* post receive first, then send, then waitall... should be fast (I hope) */
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int err, line = 0;
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ompi_request_t* reqs[2];
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ompi_status_public_t statuses[2];
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/* post new irecv */
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err = MCA_PML_CALL(irecv( recvbuf, rcount, rdatatype, source, rtag, comm, &reqs[0]));
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if (err != MPI_SUCCESS) { line = __LINE__; goto error_handler; }
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/* send data to children */
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err = MCA_PML_CALL(isend( sendbuf, scount, sdatatype, dest, stag, MCA_PML_BASE_SEND_STANDARD, comm, &reqs[1]));
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if (err != MPI_SUCCESS) { line = __LINE__; goto error_handler; }
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err = ompi_request_wait_all( 2, reqs, statuses );
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if (err != MPI_SUCCESS) { line = __LINE__; goto error_handler; }
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if (MPI_STATUS_IGNORE!=status) {
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*status = statuses[0];
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}
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return (MPI_SUCCESS);
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error_handler:
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OPAL_OUTPUT ((ompi_coll_tuned_stream, "%s:%d: Error %d occurred\n",__FILE__,line,err));
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return (err);
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}
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/*
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* localcompleted version that makes sure the send has completed locally
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* Currently this is a sync call, but will change to locally completed version when available
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*/
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int ompi_coll_tuned_sendrecv_actual_localcompleted (
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void* sendbuf, int scount, ompi_datatype_t* sdatatype, int dest, int stag,
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void* recvbuf, int rcount, ompi_datatype_t* rdatatype, int source, int rtag,
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struct ompi_communicator_t* comm, ompi_status_public_t* status )
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{ /* post receive first, then [local] sync send, then wait... should be fast (I hope) */
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int err, line = 0;
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ompi_request_t* req;
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ompi_status_public_t tmpstatus;
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/* post new irecv */
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err = MCA_PML_CALL(irecv( recvbuf, rcount, rdatatype, source, rtag, comm, &req));
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if (err != MPI_SUCCESS) { line = __LINE__; goto error_handler; }
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/* send data to children */
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err = MCA_PML_CALL(send( sendbuf, scount, sdatatype, dest, stag, MCA_PML_BASE_SEND_SYNCHRONOUS, comm));
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if (err != MPI_SUCCESS) { line = __LINE__; goto error_handler; }
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err = ompi_request_wait( &req, &tmpstatus );
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if (err != MPI_SUCCESS) { line = __LINE__; goto error_handler; }
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if (MPI_STATUS_IGNORE!=status) {
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*status = tmpstatus;
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}
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return (MPI_SUCCESS);
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error_handler:
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OPAL_OUTPUT ((ompi_coll_tuned_stream, "%s:%d: Error %d occurred\n",__FILE__,line,err));
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return (err);
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}
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