102 строки
3.9 KiB
C
102 строки
3.9 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 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) 2004-2006 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2006 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2016 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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#include "ompi_config.h"
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#include "ompi/mca/pml/base/pml_base_request.h"
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#include "ompi/mca/pml/base/pml_base_sendreq.h"
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#include "ompi/mca/pml/base/pml_base_recvreq.h"
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#include "pml_cm.h"
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#include "pml_cm_sendreq.h"
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#include "pml_cm_recvreq.h"
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int
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mca_pml_cm_start(size_t count, ompi_request_t** requests)
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{
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int rc;
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for (size_t i = 0 ; i < count ; i++) {
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mca_pml_cm_request_t *pml_request = (mca_pml_cm_request_t*)requests[i];
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if (OMPI_REQUEST_PML != requests[i]->req_type || NULL == pml_request) {
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continue;
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}
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/* start the request */
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switch (pml_request->req_pml_type) {
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case MCA_PML_CM_REQUEST_SEND_HEAVY:
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{
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mca_pml_cm_hvy_send_request_t* sendreq =
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(mca_pml_cm_hvy_send_request_t*)pml_request;
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if (!sendreq->req_send.req_base.req_pml_complete) {
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ompi_request_t *request;
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/* buffered sends can be mpi complete and pml incomplete. to support this
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* case we need to allocate a new request. */
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rc = mca_pml_cm_isend_init (sendreq->req_addr,
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sendreq->req_count,
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sendreq->req_send.req_base.req_datatype,
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sendreq->req_peer,
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sendreq->req_tag,
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sendreq->req_send.req_send_mode,
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sendreq->req_send.req_base.req_comm,
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&request);
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if (OPAL_UNLIKELY(OMPI_SUCCESS != rc)) {
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return rc;
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}
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/* copy the callback and callback data to the new requests */
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request->req_complete_cb = pml_request->req_ompi.req_complete_cb;
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request->req_complete_cb_data = pml_request->req_ompi.req_complete_cb_data;
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/* ensure the old request gets released */
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pml_request->req_free_called = true;
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sendreq = (mca_pml_cm_hvy_send_request_t *) request;
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requests[i] = request;
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}
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/* reset the completion flag */
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sendreq->req_send.req_base.req_pml_complete = false;
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MCA_PML_CM_HVY_SEND_REQUEST_START(sendreq, rc);
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if(rc != OMPI_SUCCESS)
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return rc;
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break;
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}
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case MCA_PML_CM_REQUEST_RECV_HEAVY:
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{
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mca_pml_cm_hvy_recv_request_t* recvreq =
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(mca_pml_cm_hvy_recv_request_t*)pml_request;
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MCA_PML_CM_HVY_RECV_REQUEST_START(recvreq, rc);
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if(rc != OMPI_SUCCESS)
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return rc;
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break;
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}
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default:
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return OMPI_ERR_REQUEST;
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}
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}
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return OMPI_SUCCESS;
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}
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