int mca_pml_bfo_mrecv( void *buf, size_t count, ompi_datatype_t *datatype, struct ompi_message_t **message, ompi_status_public_t* status ) { mca_pml_bfo_recv_frag_t* frag; mca_pml_bfo_recv_request_t *recvreq; mca_pml_bfo_hdr_t *hdr; int src, tag, rc; ompi_communicator_t *comm; mca_pml_bfo_comm_proc_t* proc; mca_pml_bfo_comm_t* bfo_comm; uint64_t seq; /* get the request from the message and the frag from the request before we overwrite everything */ comm = (*message)->comm; recvreq = (mca_pml_bfo_recv_request_t*) (*message)->req_ptr; frag = (mca_pml_bfo_recv_frag_t*) recvreq->req_recv.req_base.req_addr; src = recvreq->req_recv.req_base.req_ompi.req_status.MPI_SOURCE; tag = recvreq->req_recv.req_base.req_ompi.req_status.MPI_TAG; seq = recvreq->req_recv.req_base.req_sequence; bfo_comm = recvreq->req_recv.req_base.req_comm->c_pml_comm; /* make the request a recv request again */ /* The old request kept pointers to comm and the char datatype. We're about to release those, but need to make sure comm doesn't go out of scope (we don't care about the char datatype anymore). So retain comm, then release the frag, then reinit the frag (which will retain comm), then release comm (but the frag still has it's ref, so it'll stay in scope). Make sense? */ OBJ_RETAIN(comm); MCA_PML_BASE_RECV_REQUEST_FINI(&recvreq->req_recv); recvreq->req_recv.req_base.req_type = MCA_PML_REQUEST_RECV; MCA_PML_BFO_RECV_REQUEST_INIT(recvreq, buf, count, datatype, src, tag, comm, false); OBJ_RELEASE(comm); PERUSE_TRACE_COMM_EVENT (PERUSE_COMM_REQ_ACTIVATE, &((recvreq)->req_recv.req_base), PERUSE_RECV); /* init/re-init the request */ recvreq->req_lock = 0; recvreq->req_pipeline_depth = 0; recvreq->req_bytes_received = 0; recvreq->req_rdma_cnt = 0; recvreq->req_rdma_idx = 0; recvreq->req_pending = false; MCA_PML_BASE_RECV_START(&recvreq->req_recv.req_base); /* Note - sequence number already assigned */ recvreq->req_recv.req_base.req_sequence = seq; proc = &bfo_comm->procs[recvreq->req_recv.req_base.req_peer]; recvreq->req_recv.req_base.req_proc = proc->ompi_proc; prepare_recv_req_converter(recvreq); /* we can't go through the match, since we already have the match. Cheat and do what REQUEST_START does, but without the frag search */ hdr = (mca_pml_bfo_hdr_t*)frag->segments->seg_addr.pval; switch(hdr->hdr_common.hdr_type) { case MCA_PML_BFO_HDR_TYPE_MATCH: mca_pml_bfo_recv_request_progress_match(recvreq, frag->btl, frag->segments, frag->num_segments); break; case MCA_PML_BFO_HDR_TYPE_RNDV: mca_pml_bfo_recv_request_progress_rndv(recvreq, frag->btl, frag->segments, frag->num_segments); break; case MCA_PML_BFO_HDR_TYPE_RGET: mca_pml_bfo_recv_request_progress_rget(recvreq, frag->btl, frag->segments, frag->num_segments); break; default: assert(0); } ompi_message_return(*message); *message = MPI_MESSAGE_NULL; ompi_request_wait_completion(&(recvreq->req_recv.req_base.req_ompi)); MCA_PML_BFO_RECV_FRAG_RETURN(frag); if (NULL != status) { /* return status */ *status = recvreq->req_recv.req_base.req_ompi.req_status; } rc = recvreq->req_recv.req_base.req_ompi.req_status.MPI_ERROR; ompi_request_free( (ompi_request_t**)&recvreq ); return rc; }
int mca_pml_ob1_imrecv( void *buf, size_t count, ompi_datatype_t *datatype, struct ompi_message_t **message, struct ompi_request_t **request ) { mca_pml_ob1_recv_frag_t* frag; mca_pml_ob1_recv_request_t *recvreq; mca_pml_ob1_hdr_t *hdr; int src, tag; ompi_communicator_t *comm; mca_pml_ob1_comm_proc_t* proc; mca_pml_ob1_comm_t* ob1_comm; uint64_t seq; /* get the request from the message and the frag from the request before we overwrite everything */ recvreq = (mca_pml_ob1_recv_request_t*) (*message)->req_ptr; frag = (mca_pml_ob1_recv_frag_t*) recvreq->req_recv.req_base.req_addr; src = recvreq->req_recv.req_base.req_ompi.req_status.MPI_SOURCE; tag = recvreq->req_recv.req_base.req_ompi.req_status.MPI_TAG; comm = (*message)->comm; ob1_comm = recvreq->req_recv.req_base.req_comm->c_pml_comm; seq = recvreq->req_recv.req_base.req_sequence; /* make the request a recv request again */ recvreq->req_recv.req_base.req_type = MCA_PML_REQUEST_RECV; MCA_PML_OB1_RECV_REQUEST_INIT(recvreq, buf, count, datatype, src, tag, comm, false); PERUSE_TRACE_COMM_EVENT (PERUSE_COMM_REQ_ACTIVATE, &((recvreq)->req_recv.req_base), PERUSE_RECV); /* init/re-init the request */ recvreq->req_lock = 0; recvreq->req_pipeline_depth = 0; recvreq->req_bytes_received = 0; /* What about req_rdma_cnt ? */ recvreq->req_rdma_idx = 0; recvreq->req_pending = false; recvreq->req_ack_sent = false; MCA_PML_BASE_RECV_START(&recvreq->req_recv.req_base); /* Note - sequence number already assigned */ recvreq->req_recv.req_base.req_sequence = seq; proc = &ob1_comm->procs[recvreq->req_recv.req_base.req_peer]; recvreq->req_recv.req_base.req_proc = proc->ompi_proc; prepare_recv_req_converter(recvreq); /* we can't go throught he match, since we already have the match. Cheat and do what REQUEST_START does, but without the frag search */ hdr = (mca_pml_ob1_hdr_t*)frag->segments->seg_addr.pval; switch(hdr->hdr_common.hdr_type) { case MCA_PML_OB1_HDR_TYPE_MATCH: mca_pml_ob1_recv_request_progress_match(recvreq, frag->btl, frag->segments, frag->num_segments); break; case MCA_PML_OB1_HDR_TYPE_RNDV: mca_pml_ob1_recv_request_progress_rndv(recvreq, frag->btl, frag->segments, frag->num_segments); break; case MCA_PML_OB1_HDR_TYPE_RGET: mca_pml_ob1_recv_request_progress_rget(recvreq, frag->btl, frag->segments, frag->num_segments); break; default: assert(0); } MCA_PML_OB1_RECV_FRAG_RETURN(frag); ompi_message_return(*message); *message = MPI_MESSAGE_NULL; *request = (ompi_request_t *) recvreq; return OMPI_SUCCESS; }