612570134f
to let the PML (or io, more generally the low level request manager)
to have it's own release function (what was before the req_fini). This
function will only be called from the low level while the req_free will
be called from the upper level (MPI layer) in order to mark the request
as not used by the user anymore.
From the request point of view the requests will be marked as inactive
everytime we read their status (true for persistent as well). As
MPI_REQUEST_NULL is already marked as inactive, the test and wait functions
are simpler. The drawback is that now we have to change in the
ompi_request_{test|wait} the req_status of the request once we get it's
status.
This commit was SVN r9290.
709 строки
25 KiB
C
709 строки
25 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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/**
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* @file
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*/
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#include "ompi_config.h"
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#include "opal/class/opal_list.h"
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#include "opal/threads/mutex.h"
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#include "ompi/constants.h"
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#include "ompi/communicator/communicator.h"
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#include "ompi/mca/pml/pml.h"
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#include "pml_ob1.h"
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#include "pml_ob1_comm.h"
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#include "pml_ob1_recvfrag.h"
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#include "pml_ob1_recvreq.h"
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#include "pml_ob1_sendreq.h"
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#include "pml_ob1_hdr.h"
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#include "ompi/datatype/dt_arch.h"
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OBJ_CLASS_INSTANCE(
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mca_pml_ob1_buffer_t,
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opal_list_item_t,
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NULL,
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NULL
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);
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OBJ_CLASS_INSTANCE(
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mca_pml_ob1_recv_frag_t,
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opal_list_item_t,
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NULL,
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NULL
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);
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/**
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* Callback from BTL on receive.
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*/
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void mca_pml_ob1_recv_frag_callback(
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mca_btl_base_module_t* btl,
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mca_btl_base_tag_t tag,
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mca_btl_base_descriptor_t* des,
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void* cbdata)
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{
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mca_btl_base_segment_t* segments = des->des_dst;
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mca_pml_ob1_hdr_t* hdr = (mca_pml_ob1_hdr_t*)segments->seg_addr.pval;
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if(segments->seg_len < sizeof(mca_pml_ob1_common_hdr_t)) {
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return;
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}
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/* hdr_type and hdr_flags are uint8_t, so no endian problems */
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switch(hdr->hdr_common.hdr_type) {
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case MCA_PML_OB1_HDR_TYPE_MATCH:
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{
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#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
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if (hdr->hdr_common.hdr_flags & MCA_PML_OB1_HDR_FLAGS_NBO) {
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MCA_PML_OB1_MATCH_HDR_NTOH(hdr->hdr_match);
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}
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#endif
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mca_pml_ob1_recv_frag_match(btl, &hdr->hdr_match, segments,des->des_dst_cnt);
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break;
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}
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case MCA_PML_OB1_HDR_TYPE_RNDV:
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{
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#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
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if (hdr->hdr_common.hdr_flags & MCA_PML_OB1_HDR_FLAGS_NBO) {
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MCA_PML_OB1_RNDV_HDR_NTOH(hdr->hdr_rndv);
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}
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#endif
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mca_pml_ob1_recv_frag_match(btl, &hdr->hdr_match, segments,des->des_dst_cnt);
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break;
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}
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case MCA_PML_OB1_HDR_TYPE_RGET:
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{
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#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
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/* RDMA is currently disabled by bml if arch doesn't
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match, so this shouldn't be needed. here to make sure
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we remember if we ever change the bml. */
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assert(0 == (hdr->hdr_common.hdr_flags & MCA_PML_OB1_HDR_FLAGS_NBO));
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#endif
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mca_pml_ob1_recv_frag_match(btl, &hdr->hdr_match, segments,des->des_dst_cnt);
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break;
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}
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case MCA_PML_OB1_HDR_TYPE_ACK:
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{
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mca_pml_ob1_send_request_t* sendreq;
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#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
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if (hdr->hdr_common.hdr_flags & MCA_PML_OB1_HDR_FLAGS_NBO) {
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MCA_PML_OB1_ACK_HDR_NTOH(hdr->hdr_ack);
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}
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#endif
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sendreq = (mca_pml_ob1_send_request_t*)
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hdr->hdr_ack.hdr_src_req.pval;
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sendreq->req_recv = hdr->hdr_ack.hdr_dst_req;
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sendreq->req_rdma_offset = hdr->hdr_ack.hdr_rdma_offset;
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MCA_PML_OB1_SEND_REQUEST_ADVANCE(sendreq);
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break;
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}
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case MCA_PML_OB1_HDR_TYPE_FRAG:
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{
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mca_pml_ob1_recv_request_t* recvreq;
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#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
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if (hdr->hdr_common.hdr_flags & MCA_PML_OB1_HDR_FLAGS_NBO) {
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MCA_PML_OB1_FRAG_HDR_NTOH(hdr->hdr_frag);
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}
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#endif
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recvreq = (mca_pml_ob1_recv_request_t*)
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hdr->hdr_frag.hdr_dst_req.pval;
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mca_pml_ob1_recv_request_progress(recvreq,btl,segments,des->des_dst_cnt);
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break;
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}
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case MCA_PML_OB1_HDR_TYPE_PUT:
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{
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mca_pml_ob1_send_request_t* sendreq;
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#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
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/* RDMA is currently disabled by bml if arch doesn't
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match, so this shouldn't be needed. here to make sure
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we remember if we ever change the bml. */
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assert(0 == (hdr->hdr_common.hdr_flags & MCA_PML_OB1_HDR_FLAGS_NBO));
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#endif
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sendreq = (mca_pml_ob1_send_request_t*)
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hdr->hdr_rdma.hdr_req.pval;
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mca_pml_ob1_send_request_put(sendreq,btl,&hdr->hdr_rdma);
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break;
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}
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case MCA_PML_OB1_HDR_TYPE_FIN:
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{
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mca_btl_base_descriptor_t* rdma;
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#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
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if (hdr->hdr_common.hdr_flags & MCA_PML_OB1_HDR_FLAGS_NBO) {
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MCA_PML_OB1_FIN_HDR_NTOH(hdr->hdr_fin);
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}
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#endif
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rdma = (mca_btl_base_descriptor_t*)
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hdr->hdr_fin.hdr_des.pval;
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rdma->des_cbfunc(btl, NULL, rdma, OMPI_SUCCESS);
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break;
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}
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default:
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break;
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}
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}
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/**
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* Try and match the incoming message fragment to a generic
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* list of receives
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*
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* @param hdr Matching data from received fragment (IN)
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*
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* @param generic_receives Pointer to the receive list used for
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* matching purposes. (IN)
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*
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* @return Matched receive
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*
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* This routine assumes that the appropriate matching locks are
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* set by the upper level routine.
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*/
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#define MCA_PML_OB1_MATCH_GENERIC_RECEIVES(hdr,generic_receives,proc,return_match) \
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do { \
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/* local variables */ \
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mca_pml_ob1_recv_request_t *generic_recv; \
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int recv_tag, frag_tag = hdr->hdr_tag; \
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\
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/* Loop over the receives. */ \
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for( generic_recv = (mca_pml_ob1_recv_request_t *) \
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opal_list_get_first(generic_receives); \
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generic_recv != (mca_pml_ob1_recv_request_t *) \
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opal_list_get_end(generic_receives); \
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generic_recv = (mca_pml_ob1_recv_request_t *) \
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((opal_list_item_t *)generic_recv)->opal_list_next) { \
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/* Check for a match */ \
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recv_tag = generic_recv->req_recv.req_base.req_tag; \
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if ( (frag_tag == recv_tag) || \
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( (recv_tag == OMPI_ANY_TAG) && (0 <= frag_tag) ) ) { \
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\
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generic_recv->req_recv.req_base.req_proc = proc->proc_ompi; \
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/* Match made */ \
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return_match = generic_recv; \
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\
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/* remove descriptor from posted specific ireceive list */ \
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opal_list_remove_item(generic_receives, \
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(opal_list_item_t *)generic_recv); \
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\
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break; \
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} \
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} \
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} while(0)
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/**
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* Try and match the incoming message fragment to the list of
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* "wild" receives
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*
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* @param hdr Matching data from recived fragment (IN)
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*
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* @param pml_comm Pointer to the communicator structure used for
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* matching purposes. (IN)
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*
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* @return Matched receive
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*
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* This routine assumes that the appropriate matching locks are
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* set by the upper level routine.
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*/
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#define MCA_PML_OB1_CHECK_WILD_RECEIVES_FOR_MATCH(hdr,comm,proc,return_match) \
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do { \
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/* local parameters */ \
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opal_list_t* wild_receives = &comm->wild_receives; \
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MCA_PML_OB1_MATCH_GENERIC_RECEIVES(hdr,wild_receives,proc,return_match); \
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} while(0)
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/**
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* Try and match the incoming message fragment to the list of
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* "specific" receives
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*
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* @param hdr Matching data from recived fragment (IN)
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*
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* @param comm Pointer to the communicator structure used for
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* matching purposes. (IN)
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*
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* @return Matched receive
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*
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* This routine assumes that the appropriate matching locks are
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* set by the upper level routine.
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*/
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#define MCA_PML_OB1_CHECK_SPECIFIC_RECEIVES_FOR_MATCH(hdr,comm,proc,return_match) \
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do { \
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/* local variables */ \
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opal_list_t* specific_receives = &proc->specific_receives; \
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MCA_PML_OB1_MATCH_GENERIC_RECEIVES(hdr,specific_receives,proc,return_match); \
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} while(0)
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/**
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* Try and match the incoming message fragment to the list of
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* "wild" receives and "specific" receives. Used when both types
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* of receives have been posted, i.e. when we need to coordinate
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* between multiple lists to make sure ordered delivery occurs.
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*
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* @param hdr Matching data from recived fragment (IN)
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*
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* @param comm Pointer to the communicator structure used for
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* matching purposes. (IN)
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*
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* @return Matched receive
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*
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* This routine assumes that the appropriate matching locks are
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* set by the upper level routine.
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*/
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#define MCA_PML_OB1_CHECK_SPECIFIC_AND_WILD_RECEIVES_FOR_MATCH( \
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hdr,comm,proc,return_match) \
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do { \
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/* local variables */ \
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mca_pml_ob1_recv_request_t *specific_recv, *wild_recv; \
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mca_pml_sequence_t wild_recv_seq, specific_recv_seq; \
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int frag_tag, wild_recv_tag, specific_recv_tag; \
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\
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/* initialization */ \
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frag_tag=hdr->hdr_tag; \
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\
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/* \
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* We know that when this is called, both specific and wild irecvs \
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* have been posted. \
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*/ \
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specific_recv = (mca_pml_ob1_recv_request_t *) \
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opal_list_get_first(&(proc)->specific_receives); \
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wild_recv = (mca_pml_ob1_recv_request_t *) \
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opal_list_get_first(&comm->wild_receives); \
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\
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specific_recv_seq = specific_recv->req_recv.req_base.req_sequence; \
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wild_recv_seq = wild_recv->req_recv.req_base.req_sequence; \
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\
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while (true) { \
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if (wild_recv_seq < specific_recv_seq) { \
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/* \
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* wild recv is earlier than the specific one. \
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*/ \
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/* \
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* try and match \
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*/ \
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wild_recv_tag = wild_recv->req_recv.req_base.req_tag; \
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if ( (frag_tag == wild_recv_tag) || \
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( (wild_recv_tag == OMPI_ANY_TAG) && (0 <= frag_tag) ) ) { \
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/* \
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* Match made \
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*/ \
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return_match=wild_recv; \
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\
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/* remove this recv from the wild receive queue */ \
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opal_list_remove_item(&comm->wild_receives, \
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(opal_list_item_t *)wild_recv); \
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break; \
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} \
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\
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/* \
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* No match, go to the next. \
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*/ \
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wild_recv=(mca_pml_ob1_recv_request_t *) \
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((opal_list_item_t *)wild_recv)->opal_list_next; \
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\
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/* \
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* If that was the last wild one, just look at the \
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* rest of the specific ones. \
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*/ \
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if (wild_recv == (mca_pml_ob1_recv_request_t *) \
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opal_list_get_end(&comm->wild_receives) ) \
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{ \
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MCA_PML_OB1_CHECK_SPECIFIC_RECEIVES_FOR_MATCH(hdr, comm, proc, return_match); \
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break; \
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} \
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\
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/* \
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* Get the sequence number for this recv, and go \
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* back to the top of the loop. \
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*/ \
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wild_recv_seq = wild_recv->req_recv.req_base.req_sequence; \
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\
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} else { \
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/* \
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* specific recv is earlier than the wild one. \
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*/ \
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specific_recv_tag=specific_recv->req_recv.req_base.req_tag; \
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if ( (frag_tag == specific_recv_tag) || \
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( (specific_recv_tag == OMPI_ANY_TAG) && (0<=frag_tag)) ) \
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{ \
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/* \
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* Match made \
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*/ \
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return_match = specific_recv; \
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/* remove descriptor from specific receive list */ \
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opal_list_remove_item(&(proc)->specific_receives, \
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(opal_list_item_t *)specific_recv); \
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break; \
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} \
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\
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/* \
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* No match, go on to the next specific irecv. \
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*/ \
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specific_recv = (mca_pml_ob1_recv_request_t *) \
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((opal_list_item_t *)specific_recv)->opal_list_next; \
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\
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/* \
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* If that was the last specific irecv, process the \
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* rest of the wild ones. \
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*/ \
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if (specific_recv == (mca_pml_ob1_recv_request_t *) \
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opal_list_get_end(&(proc)->specific_receives)) \
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{ \
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MCA_PML_OB1_CHECK_WILD_RECEIVES_FOR_MATCH(hdr, comm, proc, return_match); \
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break; \
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} \
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/* \
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* Get the sequence number for this recv, and go \
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* back to the top of the loop. \
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*/ \
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specific_recv_seq = specific_recv->req_recv.req_base.req_sequence; \
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} \
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} \
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} while(0)
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|
|
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/*
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* Specialized matching routines for internal use only.
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*/
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static bool mca_pml_ob1_check_cantmatch_for_match(
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opal_list_t *additional_matches,
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mca_pml_ob1_comm_t* comm,
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mca_pml_ob1_comm_proc_t *proc);
|
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|
|
|
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/**
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|
* RCS/CTS receive side matching
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|
*
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|
* @param hdr list of parameters needed for matching
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* This list is also embeded in frag,
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* but this allows to save a memory copy when
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* a match is made in this routine. (IN)
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* @param frag pointer to receive fragment which we want
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* to match (IN/OUT). If a match is not made,
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* hdr is copied to frag.
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* @param match_made parameter indicating if we matched frag/
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* hdr (OUT)
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* @param additional_matches if a match is made with frag, we
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* may be able to match fragments that previously
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* have arrived out-of-order. If this is the
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|
* case, the associated fragment descriptors are
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* put on this list for further processing. (OUT)
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*
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* @return OMPI error code
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*
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* This routine is used to try and match a newly arrived message fragment
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* to pre-posted receives. The following assumptions are made
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* - fragments are received out of order
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* - for long messages, e.g. more than one fragment, a RTS/CTS algorithm
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* is used.
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* - 2nd and greater fragments include a receive descriptor pointer
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* - fragments may be dropped
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* - fragments may be corrupt
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* - this routine may be called simultaneously by more than one thread
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*/
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int mca_pml_ob1_recv_frag_match(
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mca_btl_base_module_t *btl,
|
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mca_pml_ob1_match_hdr_t *hdr,
|
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mca_btl_base_segment_t* segments,
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size_t num_segments)
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{
|
|
/* local variables */
|
|
uint16_t next_msg_seq_expected, frag_msg_seq;
|
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ompi_communicator_t *comm_ptr;
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mca_pml_ob1_recv_request_t *match = NULL;
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mca_pml_ob1_comm_t *comm;
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mca_pml_ob1_comm_proc_t *proc;
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bool additional_match=false;
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opal_list_t additional_matches;
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int rc;
|
|
|
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/* communicator pointer */
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|
comm_ptr=ompi_comm_lookup(hdr->hdr_ctx);
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comm=(mca_pml_ob1_comm_t *)comm_ptr->c_pml_comm;
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|
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/* source sequence number */
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frag_msg_seq = hdr->hdr_seq;
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proc = comm->procs + hdr->hdr_src;
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|
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/* get next expected message sequence number - if threaded
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|
* run, lock to make sure that if another thread is processing
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* a frag from the same message a match is made only once.
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|
* Also, this prevents other posted receives (for a pair of
|
|
* end points) from being processed, and potentially "loosing"
|
|
* the fragment.
|
|
*/
|
|
OPAL_THREAD_LOCK(&comm->matching_lock);
|
|
|
|
/* get sequence number of next message that can be processed */
|
|
next_msg_seq_expected = (uint16_t)proc->expected_sequence;
|
|
if (frag_msg_seq == next_msg_seq_expected) {
|
|
|
|
/*
|
|
* This is the sequence number we were expecting,
|
|
* so we can try matching it to already posted
|
|
* receives.
|
|
*/
|
|
|
|
/* We're now expecting the next sequence number. */
|
|
(proc->expected_sequence)++;
|
|
rematch:
|
|
|
|
/*
|
|
* figure out what sort of matching logic to use, if need to
|
|
* look only at "specific" receives, or "wild" receives,
|
|
* or if we need to traverse both sets at the same time.
|
|
*/
|
|
if (opal_list_get_size(&proc->specific_receives) == 0 ){
|
|
/*
|
|
* There are only wild irecvs, so specialize the algorithm.
|
|
*/
|
|
MCA_PML_OB1_CHECK_WILD_RECEIVES_FOR_MATCH(hdr, comm, proc, match);
|
|
|
|
} else if (opal_list_get_size(&comm->wild_receives) == 0 ) {
|
|
/*
|
|
* There are only specific irecvs, so specialize the algorithm.
|
|
*/
|
|
MCA_PML_OB1_CHECK_SPECIFIC_RECEIVES_FOR_MATCH(hdr, comm, proc, match);
|
|
} else {
|
|
/*
|
|
* There are some of each.
|
|
*/
|
|
MCA_PML_OB1_CHECK_SPECIFIC_AND_WILD_RECEIVES_FOR_MATCH(hdr, comm, proc, match);
|
|
}
|
|
|
|
/* if match found, process data */
|
|
if (match) {
|
|
|
|
/*
|
|
* update delivered sequence number information, if needed.
|
|
*/
|
|
if( (match->req_recv.req_base.req_type == MCA_PML_REQUEST_PROBE) ) {
|
|
|
|
/* complete the probe */
|
|
mca_pml_ob1_recv_request_matched_probe(match,btl,segments,num_segments);
|
|
|
|
/* attempt to match actual request */
|
|
match = NULL;
|
|
goto rematch;
|
|
}
|
|
} else {
|
|
|
|
/* if no match found, place on unexpected queue */
|
|
mca_pml_ob1_recv_frag_t* frag;
|
|
MCA_PML_OB1_RECV_FRAG_ALLOC(frag, rc);
|
|
if(OMPI_SUCCESS != rc) {
|
|
OPAL_THREAD_UNLOCK(&comm->matching_lock);
|
|
return rc;
|
|
}
|
|
MCA_PML_OB1_RECV_FRAG_INIT(frag,hdr,segments,num_segments,btl);
|
|
opal_list_append( &proc->unexpected_frags, (opal_list_item_t *)frag );
|
|
}
|
|
|
|
/*
|
|
* Now that new message has arrived, check to see if
|
|
* any fragments on the c_c_frags_cant_match list
|
|
* may now be used to form new matchs
|
|
*/
|
|
if (0 < opal_list_get_size(&proc->frags_cant_match)) {
|
|
additional_match = mca_pml_ob1_check_cantmatch_for_match(&additional_matches,comm,proc);
|
|
}
|
|
|
|
} else {
|
|
|
|
/*
|
|
* This message comes after the next expected, so it
|
|
* is ahead of sequence. Save it for later.
|
|
*/
|
|
mca_pml_ob1_recv_frag_t* frag;
|
|
MCA_PML_OB1_RECV_FRAG_ALLOC(frag, rc);
|
|
if(OMPI_SUCCESS != rc) {
|
|
OPAL_THREAD_UNLOCK(&comm->matching_lock);
|
|
return rc;
|
|
}
|
|
MCA_PML_OB1_RECV_FRAG_INIT(frag,hdr,segments,num_segments,btl);
|
|
opal_list_append(&proc->frags_cant_match, (opal_list_item_t *)frag);
|
|
|
|
}
|
|
/* release matching lock before processing fragment */
|
|
OPAL_THREAD_UNLOCK(&comm->matching_lock);
|
|
|
|
if(match != NULL) {
|
|
mca_pml_ob1_recv_request_progress(match,btl,segments,num_segments);
|
|
}
|
|
if(additional_match) {
|
|
opal_list_item_t* item;
|
|
while(NULL != (item = opal_list_remove_first(&additional_matches))) {
|
|
mca_pml_ob1_recv_frag_t* frag = (mca_pml_ob1_recv_frag_t*)item;
|
|
mca_pml_ob1_recv_request_progress(frag->request,frag->btl,frag->segments,frag->num_segments);
|
|
MCA_PML_OB1_RECV_FRAG_RETURN(frag);
|
|
}
|
|
}
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
* Scan the list of frags that came in ahead of time to see if any
|
|
* can be processed at this time. If they can, try and match the
|
|
* frags.
|
|
*
|
|
* @param additional_matches List to hold new matches with fragments
|
|
* from the c_frags_cant_match list. (IN/OUT)
|
|
*
|
|
* @param pml_comm Pointer to the communicator structure used for
|
|
* matching purposes. (IN)
|
|
*
|
|
* This routine assumes that the appropriate matching locks are
|
|
* set by the upper level routine.
|
|
*/
|
|
|
|
static bool mca_pml_ob1_check_cantmatch_for_match(
|
|
opal_list_t *additional_matches,
|
|
mca_pml_ob1_comm_t* comm,
|
|
mca_pml_ob1_comm_proc_t *proc)
|
|
{
|
|
/* local parameters */
|
|
int match_found;
|
|
uint16_t next_msg_seq_expected, frag_seq;
|
|
mca_pml_ob1_recv_frag_t *frag;
|
|
bool match_made = false;
|
|
|
|
/*
|
|
* Loop over all the out of sequence messages. No ordering is assumed
|
|
* in the c_frags_cant_match list.
|
|
*/
|
|
|
|
match_found = 1;
|
|
while ((0 < opal_list_get_size(&proc->frags_cant_match)) && match_found) {
|
|
|
|
/* initialize match flag for this search */
|
|
match_found = 0;
|
|
|
|
/* get sequence number of next message that can be processed */
|
|
next_msg_seq_expected = proc->expected_sequence;
|
|
|
|
/* search the list for a fragment from the send with sequence
|
|
* number next_msg_seq_expected
|
|
*/
|
|
for(frag = (mca_pml_ob1_recv_frag_t *)
|
|
opal_list_get_first(&proc->frags_cant_match);
|
|
frag != (mca_pml_ob1_recv_frag_t *)
|
|
opal_list_get_end(&proc->frags_cant_match);
|
|
frag = (mca_pml_ob1_recv_frag_t *)
|
|
opal_list_get_next(frag))
|
|
{
|
|
/*
|
|
* If the message has the next expected seq from that proc...
|
|
*/
|
|
frag_seq=frag->hdr.hdr_match.hdr_seq;
|
|
if (frag_seq == next_msg_seq_expected) {
|
|
mca_pml_ob1_match_hdr_t* hdr = &frag->hdr.hdr_match;
|
|
mca_pml_ob1_recv_request_t *match = NULL;
|
|
|
|
/* We're now expecting the next sequence number. */
|
|
(proc->expected_sequence)++;
|
|
|
|
/* signal that match was made */
|
|
match_found = 1;
|
|
|
|
/*
|
|
* remove frag from list
|
|
*/
|
|
opal_list_remove_item(&proc->frags_cant_match,
|
|
(opal_list_item_t *)frag);
|
|
|
|
rematch:
|
|
/*
|
|
* figure out what sort of matching logic to use, if need to
|
|
* look only at "specific" receives, or "wild" receives,
|
|
* or if we need to traverse both sets at the same time.
|
|
*/
|
|
proc = comm->procs + hdr->hdr_src;
|
|
if (opal_list_get_size(&proc->specific_receives) == 0 ) {
|
|
/*
|
|
* There are only wild irecvs, so specialize the algorithm.
|
|
*/
|
|
MCA_PML_OB1_CHECK_WILD_RECEIVES_FOR_MATCH(hdr, comm, proc, match);
|
|
} else if (opal_list_get_size(&comm->wild_receives) == 0 ) {
|
|
/*
|
|
* There are only specific irecvs, so specialize the algorithm.
|
|
*/
|
|
MCA_PML_OB1_CHECK_SPECIFIC_RECEIVES_FOR_MATCH(hdr, comm, proc, match);
|
|
} else {
|
|
/*
|
|
* There are some of each.
|
|
*/
|
|
MCA_PML_OB1_CHECK_SPECIFIC_AND_WILD_RECEIVES_FOR_MATCH(hdr, comm, proc, match);
|
|
|
|
}
|
|
|
|
/* if match found, process data */
|
|
if (match) {
|
|
|
|
/*
|
|
* If this was a probe need to queue fragment on unexpected list
|
|
*/
|
|
if( (match->req_recv.req_base.req_type == MCA_PML_REQUEST_PROBE) ) {
|
|
|
|
/* complete the probe */
|
|
mca_pml_ob1_recv_request_matched_probe(match,frag->btl,frag->segments,frag->num_segments);
|
|
|
|
/* retry the match */
|
|
match = NULL;
|
|
goto rematch;
|
|
|
|
} else {
|
|
|
|
/* associate the receive descriptor with the fragment
|
|
* descriptor */
|
|
frag->request=match;
|
|
|
|
/* add this fragment descriptor to the list of
|
|
* descriptors to be processed later
|
|
*/
|
|
if(match_made == false) {
|
|
match_made = true;
|
|
OBJ_CONSTRUCT(additional_matches, opal_list_t);
|
|
}
|
|
opal_list_append(additional_matches, (opal_list_item_t *)frag);
|
|
}
|
|
|
|
} else {
|
|
|
|
/* if no match found, place on unexpected queue */
|
|
opal_list_append( &proc->unexpected_frags, (opal_list_item_t *)frag);
|
|
}
|
|
|
|
/* c_frags_cant_match is not an ordered list, so exit loop
|
|
* and re-start search for next sequence number */
|
|
break;
|
|
|
|
} /* end if (frag_seq == next_msg_seq_expected) */
|
|
|
|
} /* end for (frag) loop */
|
|
|
|
} /* end while loop */
|
|
|
|
return match_made;
|
|
}
|
|
|