46 строки
1.3 KiB
C
46 строки
1.3 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/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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req.base.mq = (mxm_mq_h)comm->c_pml_comm;
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req.tag = tag;
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req.tag_mask = (tag == MPI_ANY_TAG) ? 0 : 0xffffffffU;
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req.base.conn = (src == MPI_ANY_SOURCE) ? NULL : ompi_mtl_mxm_conn_lookup(comm, src);
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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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status->MPI_SOURCE = *(int *)mxm_conn_get_context(req.base.conn);
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status->MPI_TAG = req.completion.sender_tag;
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status->MPI_ERROR = ompi_mtl_mxm_to_mpi_status(err);
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status->_ucount = req.completion.actual_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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