115 строки
3.1 KiB
C
115 строки
3.1 KiB
C
/*
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* Copyright (C) Mellanox Technologies Ltd. 2001-2011. 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 "mtl_mxm.h"
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#include "mtl_mxm_types.h"
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#include "ompi/message/message.h"
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#include "ompi/communicator/communicator.h"
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int ompi_mtl_mxm_iprobe(struct mca_mtl_base_module_t* mtl,
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struct ompi_communicator_t *comm, int src, int tag,
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int *flag, struct ompi_status_public_t *status)
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{
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mxm_error_t err;
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mxm_recv_req_t req;
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req.base.state = MXM_REQ_NEW;
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ompi_mtl_mxm_set_recv_envelope(&req, comm, src, tag);
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err = mxm_req_probe(&req);
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if (MXM_OK == err) {
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*flag = 1;
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if (MPI_STATUS_IGNORE != status) {
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ompi_mtl_mxm_to_mpi_status(err, status);
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status->MPI_SOURCE = req.completion.sender_imm;
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status->MPI_TAG = req.completion.sender_tag;
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status->_ucount = req.completion.sender_len;
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}
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return OMPI_SUCCESS;
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} else if (MXM_ERR_NO_MESSAGE == err) {
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*flag = 0;
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return OMPI_SUCCESS;
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} else {
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return OMPI_ERROR;
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}
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}
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int ompi_mtl_mxm_improbe(struct mca_mtl_base_module_t *mtl,
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struct ompi_communicator_t *comm,
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int src,
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int tag,
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int *matched,
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struct ompi_message_t **message,
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struct ompi_status_public_t *status)
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{
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#if MXM_API >= MXM_VERSION(1,5)
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int rc;
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mxm_error_t err;
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mxm_recv_req_t req;
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ompi_free_list_item_t *item;
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ompi_mtl_mxm_message_t *msgp;
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OMPI_FREE_LIST_WAIT(&mca_mtl_mxm_component.mxm_messages, item, rc);
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if (OPAL_UNLIKELY(OMPI_SUCCESS != rc)) {
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return rc;
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}
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msgp = (ompi_mtl_mxm_message_t *) item;
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req.base.state = MXM_REQ_NEW;
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ompi_mtl_mxm_set_recv_envelope(&req, comm, src, tag);
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msgp->mq = req.base.mq;
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msgp->conn = req.base.conn;
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msgp->tag = req.tag;
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msgp->tag_mask = req.tag_mask;
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err = mxm_req_mprobe(&req, &msgp->mxm_msg);
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if (MXM_OK == err) {
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if (MPI_STATUS_IGNORE != status) {
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*matched = 1;
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ompi_mtl_mxm_to_mpi_status(err, status);
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status->MPI_SOURCE = req.completion.sender_imm;
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status->MPI_TAG = req.completion.sender_tag;
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status->_ucount = req.completion.sender_len;
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} else{
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*matched = 0;
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*message = MPI_MESSAGE_NULL;
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return OMPI_SUCCESS;
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}
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} else if (MXM_ERR_NO_MESSAGE == err) {
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*matched = 0;
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*message = MPI_MESSAGE_NULL;
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return OMPI_SUCCESS;
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} else {
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return OMPI_ERROR;
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}
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(*message) = ompi_message_alloc();
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if (OPAL_UNLIKELY(NULL == (*message))) {
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*matched = 0;
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*message = MPI_MESSAGE_NULL;
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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(*message)->comm = comm;
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(*message)->req_ptr = msgp;
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(*message)->peer = status->MPI_SOURCE;
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(*message)->count = status->_ucount;
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return OMPI_SUCCESS;
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#else
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return OMPI_ERR_NOT_IMPLEMENTED;
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#endif
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}
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