1596 строки
64 KiB
C
1596 строки
64 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) 2004-2008 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) 2004-2008 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 (c) 2008 UT-Battelle, LLC. All rights reserved.
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* Copyright (c) 2010 Oracle and/or its affiliates. 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 "opal/prefetch.h"
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#include "ompi/constants.h"
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#include "ompi/mca/pml/pml.h"
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#include "ompi/mca/btl/btl.h"
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#include "orte/mca/errmgr/errmgr.h"
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#include "ompi/mca/mpool/mpool.h"
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#include "pml_bfo.h"
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#include "pml_bfo_hdr.h"
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#include "pml_bfo_sendreq.h"
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#include "pml_bfo_rdmafrag.h"
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#include "pml_bfo_recvreq.h"
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/* BFO FAILOVER CODE - begin */
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#include "pml_bfo_failover.h"
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/* BFO FAILOVER CODE - end */
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#include "ompi/mca/bml/base/base.h"
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#include "ompi/memchecker.h"
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OBJ_CLASS_INSTANCE(mca_pml_bfo_send_range_t, ompi_free_list_item_t,
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NULL, NULL);
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void mca_pml_bfo_send_request_process_pending(struct mca_btl_base_module_t *btl)
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{
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int i, s = opal_list_get_size(&mca_pml_bfo.send_pending);
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/* advance pending requests */
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for(i = 0; i < s; i++) {
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mca_pml_bfo_send_pending_t pending_type = MCA_PML_BFO_SEND_PENDING_NONE;
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mca_pml_bfo_send_request_t* sendreq;
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mca_bml_base_btl_t *send_dst;
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sendreq = get_request_from_send_pending(&pending_type);
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if(OPAL_UNLIKELY(NULL == sendreq))
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break;
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switch(pending_type) {
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case MCA_PML_BFO_SEND_PENDING_SCHEDULE:
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if(OPAL_SOS_GET_ERROR_CODE(mca_pml_bfo_send_request_schedule_exclusive(sendreq)) ==
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OMPI_ERR_OUT_OF_RESOURCE) {
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return;
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}
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break;
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case MCA_PML_BFO_SEND_PENDING_START:
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send_dst = mca_bml_base_btl_array_find(
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&sendreq->req_endpoint->btl_eager, btl);
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if( (NULL == send_dst) ||
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(OPAL_SOS_GET_ERROR_CODE(mca_pml_bfo_send_request_start_btl(sendreq, send_dst)) ==
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OMPI_ERR_OUT_OF_RESOURCE) ) {
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/* prepend to the pending list to minimize reordering in case
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* send_dst != 0 */
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add_request_to_send_pending(sendreq,
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MCA_PML_BFO_SEND_PENDING_START, NULL == send_dst);
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/* if no destination try next request otherwise give up,
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* no more resources on this btl */
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if(send_dst != NULL)
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return;
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}
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break;
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default:
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opal_output(0, "[%s:%d] wrong send request type\n",
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__FILE__, __LINE__);
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break;
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}
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}
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}
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/*
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* The free call mark the final stage in a request life-cycle. Starting from this
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* point the request is completed at both PML and user level, and can be used
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* for others p2p communications. Therefore, in the case of the BFO PML it should
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* be added to the free request list.
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*/
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static int mca_pml_bfo_send_request_free(struct ompi_request_t** request)
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{
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mca_pml_bfo_send_request_t* sendreq = *(mca_pml_bfo_send_request_t**)request;
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assert( false == sendreq->req_send.req_base.req_free_called );
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OPAL_THREAD_LOCK(&ompi_request_lock);
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sendreq->req_send.req_base.req_free_called = true;
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PERUSE_TRACE_COMM_EVENT( PERUSE_COMM_REQ_NOTIFY,
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&(sendreq->req_send.req_base), PERUSE_SEND );
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if( true == sendreq->req_send.req_base.req_pml_complete ) {
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/* make buffer defined when the request is compeleted,
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and before releasing the objects. */
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MEMCHECKER(
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memchecker_call(&opal_memchecker_base_mem_defined,
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sendreq->req_send.req_base.req_addr,
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sendreq->req_send.req_base.req_count,
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sendreq->req_send.req_base.req_datatype);
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);
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MCA_PML_BFO_SEND_REQUEST_RETURN( sendreq );
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}
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OPAL_THREAD_UNLOCK(&ompi_request_lock);
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*request = MPI_REQUEST_NULL;
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return OMPI_SUCCESS;
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}
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static int mca_pml_bfo_send_request_cancel(struct ompi_request_t* request, int complete)
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{
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/* we dont cancel send requests by now */
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return OMPI_SUCCESS;
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}
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static void mca_pml_bfo_send_request_construct(mca_pml_bfo_send_request_t* req)
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{
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req->req_send.req_base.req_type = MCA_PML_REQUEST_SEND;
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req->req_send.req_base.req_ompi.req_free = mca_pml_bfo_send_request_free;
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req->req_send.req_base.req_ompi.req_cancel = mca_pml_bfo_send_request_cancel;
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req->req_rdma_cnt = 0;
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req->req_throttle_sends = false;
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OBJ_CONSTRUCT(&req->req_send_ranges, opal_list_t);
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OBJ_CONSTRUCT(&req->req_send_range_lock, opal_mutex_t);
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}
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static void mca_pml_bfo_send_request_destruct(mca_pml_bfo_send_request_t* req)
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{
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OBJ_DESTRUCT(&req->req_send_ranges);
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OBJ_DESTRUCT(&req->req_send_range_lock);
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}
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OBJ_CLASS_INSTANCE( mca_pml_bfo_send_request_t,
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mca_pml_base_send_request_t,
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mca_pml_bfo_send_request_construct,
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mca_pml_bfo_send_request_destruct );
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/**
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* Completion of a short message - nothing left to schedule.
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*/
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static inline void
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mca_pml_bfo_match_completion_free_request( struct mca_btl_base_module_t* btl,
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mca_pml_bfo_send_request_t* sendreq )
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{
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if( sendreq->req_send.req_bytes_packed > 0 ) {
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PERUSE_TRACE_COMM_EVENT( PERUSE_COMM_REQ_XFER_BEGIN,
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&(sendreq->req_send.req_base), PERUSE_SEND );
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}
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/* signal request completion */
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send_request_pml_complete(sendreq);
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/* check for pending requests */
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MCA_PML_BFO_PROGRESS_PENDING(btl);
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}
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static void
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mca_pml_bfo_match_completion_free( struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* ep,
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struct mca_btl_base_descriptor_t* des,
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int status )
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{
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mca_pml_bfo_send_request_t* sendreq = (mca_pml_bfo_send_request_t*)des->des_cbdata;
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/* check completion status */
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if( OPAL_UNLIKELY(OMPI_SUCCESS != status) ) {
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/* BFO FAILOVER CODE - begin */
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mca_pml_bfo_repost_match_fragment(des);
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return;
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/* BFO FAILOVER CODE - end */
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}
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mca_pml_bfo_match_completion_free_request( btl, sendreq );
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}
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static inline void
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mca_pml_bfo_rndv_completion_request( struct mca_btl_base_module_t* btl,
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mca_pml_bfo_send_request_t* sendreq,
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size_t req_bytes_delivered )
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{
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if( sendreq->req_send.req_bytes_packed > 0 ) {
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PERUSE_TRACE_COMM_EVENT( PERUSE_COMM_REQ_XFER_BEGIN,
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&(sendreq->req_send.req_base), PERUSE_SEND );
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}
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OPAL_THREAD_ADD_SIZE_T(&sendreq->req_bytes_delivered, req_bytes_delivered);
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/* advance the request */
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OPAL_THREAD_ADD32(&sendreq->req_state, -1);
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send_request_pml_complete_check(sendreq);
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/* check for pending requests */
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MCA_PML_BFO_PROGRESS_PENDING(btl);
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}
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/*
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* Completion of the first fragment of a long message that
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* requires an acknowledgement
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*/
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static void
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mca_pml_bfo_rndv_completion( mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* ep,
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struct mca_btl_base_descriptor_t* des,
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int status )
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{
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mca_pml_bfo_send_request_t* sendreq = (mca_pml_bfo_send_request_t*)des->des_cbdata;
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size_t req_bytes_delivered = 0;
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/* check completion status */
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if( OPAL_UNLIKELY(OMPI_SUCCESS != status) ) {
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/* BFO FAILOVER CODE - begin */
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/* The completion event for the RNDV message has returned with
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* an error. We know that the send request we are looking at is
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* valid because it cannot be completed until the sendreq->req_state
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* value reaches 0. And for the sendreq->req_state to reach 0,
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* the completion event on the RNDV message must occur. So, we
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* do not bother checking whether the send request is valid,
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* because we know it is, but we put a few asserts in for good
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* measure. We then check a few fields in the request to decide what
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* to do. If the sendreq->req_error is set, that means that something
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* has happend already to the request and we do not want to restart
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* it. Presumably, we may have received a RECVERRNOTIFY
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* message from the receiver. We also check the sendreq->req_acked
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* field to see if it has been acked. If it has, then again we
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* do not restart everything because obviously the RNDV message
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* has made it to the other side. */
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assert((mca_pml_bfo_hdr_t*)(des->des_src->seg_addr.pval)->hdr_match.hdr_ctx ==
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sendreq->req_send.req_base.req_comm->c_contextid);
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assert((mca_pml_bfo_hdr_t*)(des->des_src->seg_addr.pval)->hdr_match.hdr_src ==
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sendreq->req_send.req_base.req_comm->c_my_rank);
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assert((mca_pml_bfo_hdr_t*)(des->des_src->seg_addr.pval)->hdr_match.hdr_seq ==
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(uint16_t)sendreq->req_send.req_base.req_sequence);
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if ((!sendreq->req_error) && (!sendreq->req_acked)) {
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sendreq->req_events--;
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/* Assume RNDV did not make it, so restart from the beginning. */
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mca_pml_bfo_send_request_restart(sendreq, true, MCA_PML_BFO_HDR_TYPE_RNDV);
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return;
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}
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/* BFO FAILOVER CODE - end */
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}
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/* BFO FAILOVER CODE - begin */
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sendreq->req_events--;
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/* Now check the error state. This request can be in error if the
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* RNDV message made it over, but the receiver got an error trying
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* to send the ACK back and therefore sent a RECVERRNOTIFY message.
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* In that case, we want to start the restart dance as the receiver
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* has matched this message already. Only restart if there are no
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* outstanding events on send request. */
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if (sendreq->req_error) {
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opal_output_verbose(30, mca_pml_bfo_output,
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"RNDV: completion: sendreq has error, outstanding events=%d, "
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"PML=%d, RQS=%d, src_req=%lx, dst_req=%lx, status=%d, peer=%d",
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sendreq->req_events, (uint16_t)sendreq->req_send.req_base.req_sequence,
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sendreq->req_restartseq, (unsigned long)sendreq,
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(unsigned long)sendreq->req_recv.pval,
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status, sendreq->req_send.req_base.req_peer);
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if (0 == sendreq->req_events) {
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mca_pml_bfo_send_request_rndvrestartnotify(sendreq, false,
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MCA_PML_BFO_HDR_TYPE_RNDV,
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status, btl);
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}
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return;
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}
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/* BFO FAILOVER CODE - end */
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/* count bytes of user data actually delivered. As the rndv completion only
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* happens in one thread, the increase of the req_bytes_delivered does not
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* have to be atomic.
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*/
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MCA_PML_BFO_COMPUTE_SEGMENT_LENGTH( des->des_src,
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des->des_src_cnt,
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sizeof(mca_pml_bfo_rendezvous_hdr_t),
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req_bytes_delivered );
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mca_pml_bfo_rndv_completion_request( btl, sendreq, req_bytes_delivered );
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}
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/**
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* Completion of a get request.
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*/
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static void
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mca_pml_bfo_rget_completion( mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* ep,
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struct mca_btl_base_descriptor_t* des,
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int status )
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{
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mca_pml_bfo_send_request_t* sendreq = (mca_pml_bfo_send_request_t*)des->des_cbdata;
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size_t req_bytes_delivered = 0;
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/* BFO FAILOVER CODE - begin */
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/* This can happen if a FIN message arrives after the request was
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* marked in error. So, just drop the message. Note that the
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* status field is not checked here. That is because that is the
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* value returned in the FIN hdr.hdr_fail field and may be used for
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* other things. */
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if( OPAL_UNLIKELY(sendreq->req_error)) {
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opal_output_verbose(30, mca_pml_bfo_output,
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"FIN: received on broken request, skipping, "
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"PML=%d, src_req=%lx, dst_req=%lx, peer=%d",
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(uint16_t)sendreq->req_send.req_base.req_sequence,
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(unsigned long)sendreq, (unsigned long)sendreq->req_recv.pval,
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sendreq->req_send.req_base.req_peer);
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btl->btl_free(btl, des);
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return;
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}
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/* BFO FAILOVER CODE - end */
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/* count bytes of user data actually delivered and check for request completion */
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MCA_PML_BFO_COMPUTE_SEGMENT_LENGTH( des->des_src, des->des_src_cnt,
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0, req_bytes_delivered );
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OPAL_THREAD_ADD_SIZE_T(&sendreq->req_bytes_delivered, req_bytes_delivered);
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send_request_pml_complete_check(sendreq);
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/* free the descriptor */
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btl->btl_free(btl, des);
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MCA_PML_BFO_PROGRESS_PENDING(btl);
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}
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/**
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* Completion of a control message - return resources.
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*/
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static void
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mca_pml_bfo_send_ctl_completion( mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* ep,
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struct mca_btl_base_descriptor_t* des,
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int status )
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{
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/* BFO FAILOVER CODE - begin */
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if(OPAL_LIKELY(OMPI_SUCCESS == status)) {
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/* check for pending requests */
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MCA_PML_BFO_PROGRESS_PENDING(btl);
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} else {
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mca_pml_bfo_hdr_t* hdr = des->des_src->seg_addr.pval;
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/* If we get an error on the RGET message, then first make
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* sure that header matches the send request that we are
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* pointing to. This is necessary, because even though the
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* sending side got an error, the RGET may have made it to the
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* receiving side and the message transfer may have completed.
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* This would then mean the send request has been completed and
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* perhaps in use by another communication. So there is no need
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* to restart this request. Therefore, ensure that we are
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* looking at the same request that the header thinks we are
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* looking at. If not, then there is nothing else to be done. */
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mca_pml_bfo_send_request_t* sendreq = (mca_pml_bfo_send_request_t*)des->des_cbdata;
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switch (hdr->hdr_common.hdr_type) {
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case MCA_PML_BFO_HDR_TYPE_RGET:
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if ((hdr->hdr_match.hdr_ctx != sendreq->req_send.req_base.req_comm->c_contextid) ||
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(hdr->hdr_match.hdr_src != sendreq->req_send.req_base.req_comm->c_my_rank) ||
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(hdr->hdr_match.hdr_seq != (uint16_t)sendreq->req_send.req_base.req_sequence)) {
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opal_output_verbose(20, mca_pml_bfo_output,
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"RGET: completion event: dropping because no valid request "
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"PML:exp=%d,act=%d CTX:exp=%d,act=%d SRC:exp=%d,act=%d "
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"RQS:exp=%d,act=%d, dst_req=%p",
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(uint16_t)sendreq->req_send.req_base.req_sequence,
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hdr->hdr_match.hdr_seq,
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sendreq->req_send.req_base.req_comm->c_contextid,
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hdr->hdr_match.hdr_ctx,
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sendreq->req_send.req_base.req_comm->c_my_rank,
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hdr->hdr_match.hdr_src,
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sendreq->req_restartseq, hdr->hdr_fin.hdr_restartseq,
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(void *)sendreq);
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return;
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}
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mca_pml_bfo_send_request_restart(sendreq, true, MCA_PML_BFO_HDR_TYPE_RGET);
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return;
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default:
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opal_output(0, "%s:%d FATAL ERROR, unknown header (hdr=%d)",
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__FILE__, __LINE__, hdr->hdr_common.hdr_type);
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orte_errmgr.abort(-1, NULL);
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}
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}
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/* BFO FAILOVER CODE - end */
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}
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/**
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* Completion of additional fragments of a large message - may need
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* to schedule additional fragments.
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*/
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static void
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mca_pml_bfo_frag_completion( mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* ep,
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struct mca_btl_base_descriptor_t* des,
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int status )
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{
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mca_pml_bfo_send_request_t* sendreq = (mca_pml_bfo_send_request_t*)des->des_cbdata;
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size_t req_bytes_delivered = 0;
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/* BFO FAILOVER CODE - begin */
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sendreq->req_events--;
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/* BFO FAILOVER CODE - end */
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/* check completion status */
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if( OPAL_UNLIKELY(OMPI_SUCCESS != status) ) {
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/* BFO FAILOVER CODE - begin */
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sendreq->req_error++;
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/* BFO FAILOVER CODE - end */
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}
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/* count bytes of user data actually delivered */
|
|
MCA_PML_BFO_COMPUTE_SEGMENT_LENGTH( des->des_src,
|
|
des->des_src_cnt,
|
|
sizeof(mca_pml_bfo_frag_hdr_t),
|
|
req_bytes_delivered );
|
|
|
|
OPAL_THREAD_ADD_SIZE_T(&sendreq->req_pipeline_depth, -1);
|
|
OPAL_THREAD_ADD_SIZE_T(&sendreq->req_bytes_delivered, req_bytes_delivered);
|
|
|
|
/* BFO FAILOVER CODE - begin */
|
|
/* note we check error after bytes delivered computation in case frag made it */
|
|
if( OPAL_UNLIKELY(sendreq->req_error)) {
|
|
opal_output_verbose(30, mca_pml_bfo_output,
|
|
"FRAG: completion: sendreq has error, outstanding events=%d, "
|
|
"PML=%d, RQS=%d, src_req=%p, dst_req=%p, status=%d, peer=%d",
|
|
sendreq->req_events, (uint16_t)sendreq->req_send.req_base.req_sequence,
|
|
sendreq->req_restartseq, (void *)sendreq,
|
|
sendreq->req_recv.pval,
|
|
status, sendreq->req_send.req_base.req_peer);
|
|
if (0 == sendreq->req_events) {
|
|
mca_pml_bfo_send_request_rndvrestartnotify(sendreq, false,
|
|
MCA_PML_BFO_HDR_TYPE_FRAG,
|
|
status, btl);
|
|
}
|
|
return;
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
if(send_request_pml_complete_check(sendreq) == false) {
|
|
mca_pml_bfo_send_request_schedule(sendreq);
|
|
/* BFO FAILOVER CODE - begin */
|
|
if( OPAL_UNLIKELY(sendreq->req_error)) {
|
|
/* This situation can happen if the scheduling function
|
|
* determined that a BTL was removed from underneath us
|
|
* and therefore marked the request in error. In that
|
|
* case, the scheduling of fragments can no longer proceed
|
|
* properly. Therefore, if no outstanding events, initiate
|
|
* the restart dance. */
|
|
opal_output_verbose(30, mca_pml_bfo_output,
|
|
"FRAG: completion: BTL has been removed, outstanding events=%d, "
|
|
"PML=%d, RQS=%d, src_req=%p, dst_req=%p, status=%d, peer=%d",
|
|
sendreq->req_events, (uint16_t)sendreq->req_send.req_base.req_sequence,
|
|
sendreq->req_restartseq, (void *)sendreq,
|
|
sendreq->req_recv.pval,
|
|
status, sendreq->req_send.req_base.req_peer);
|
|
if (0 == sendreq->req_events) {
|
|
mca_pml_bfo_send_request_rndvrestartnotify(sendreq, false,
|
|
MCA_PML_BFO_HDR_TYPE_FRAG,
|
|
status, btl);
|
|
}
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
}
|
|
|
|
/* check for pending requests */
|
|
MCA_PML_BFO_PROGRESS_PENDING(btl);
|
|
}
|
|
|
|
/**
|
|
* Buffer the entire message and mark as complete.
|
|
*/
|
|
|
|
int mca_pml_bfo_send_request_start_buffered(
|
|
mca_pml_bfo_send_request_t* sendreq,
|
|
mca_bml_base_btl_t* bml_btl,
|
|
size_t size)
|
|
{
|
|
mca_btl_base_descriptor_t* des;
|
|
mca_btl_base_segment_t* segment;
|
|
mca_pml_bfo_hdr_t* hdr;
|
|
struct iovec iov;
|
|
unsigned int iov_count;
|
|
size_t max_data, req_bytes_delivered;
|
|
int rc;
|
|
|
|
/* allocate descriptor */
|
|
mca_bml_base_alloc(bml_btl, &des,
|
|
MCA_BTL_NO_ORDER,
|
|
sizeof(mca_pml_bfo_rendezvous_hdr_t) + size,
|
|
MCA_BTL_DES_FLAGS_PRIORITY | MCA_BTL_DES_FLAGS_BTL_OWNERSHIP);
|
|
if( OPAL_UNLIKELY(NULL == des) ) {
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
}
|
|
segment = des->des_src;
|
|
|
|
/* pack the data into the BTL supplied buffer */
|
|
iov.iov_base = (IOVBASE_TYPE*)((unsigned char*)segment->seg_addr.pval +
|
|
sizeof(mca_pml_bfo_rendezvous_hdr_t));
|
|
iov.iov_len = size;
|
|
iov_count = 1;
|
|
max_data = size;
|
|
if((rc = opal_convertor_pack( &sendreq->req_send.req_base.req_convertor,
|
|
&iov,
|
|
&iov_count,
|
|
&max_data)) < 0) {
|
|
mca_bml_base_free(bml_btl, des);
|
|
return rc;
|
|
}
|
|
req_bytes_delivered = max_data;
|
|
|
|
/* build rendezvous header */
|
|
hdr = (mca_pml_bfo_hdr_t*)segment->seg_addr.pval;
|
|
hdr->hdr_common.hdr_flags = 0;
|
|
hdr->hdr_common.hdr_type = MCA_PML_BFO_HDR_TYPE_RNDV;
|
|
hdr->hdr_match.hdr_ctx = sendreq->req_send.req_base.req_comm->c_contextid;
|
|
hdr->hdr_match.hdr_src = sendreq->req_send.req_base.req_comm->c_my_rank;
|
|
hdr->hdr_match.hdr_tag = sendreq->req_send.req_base.req_tag;
|
|
hdr->hdr_match.hdr_seq = (uint16_t)sendreq->req_send.req_base.req_sequence;
|
|
hdr->hdr_rndv.hdr_msg_length = sendreq->req_send.req_bytes_packed;
|
|
hdr->hdr_rndv.hdr_src_req.pval = sendreq;
|
|
/* BFO FAILOVER CODE - begin */
|
|
if (0 < sendreq->req_restartseq) {
|
|
hdr->hdr_common.hdr_flags |= MCA_PML_BFO_HDR_FLAGS_RESTART;
|
|
hdr->hdr_rndv.hdr_dst_req = sendreq->req_recv;
|
|
hdr->hdr_rndv.hdr_restartseq = sendreq->req_restartseq;
|
|
opal_output_verbose(30, mca_pml_bfo_output,
|
|
"RNDV(buffered): restarting: PML=%d, RQS=%d, CTX=%d, SRC=%d, "
|
|
"src_req=%p, dst_req=%p, peer=%d",
|
|
(uint16_t)sendreq->req_send.req_base.req_sequence, sendreq->req_restartseq,
|
|
sendreq->req_send.req_base.req_comm->c_contextid,
|
|
sendreq->req_send.req_base.req_comm->c_my_rank, (void *)sendreq,
|
|
sendreq->req_recv.pval, sendreq->req_send.req_base.req_peer);
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
|
|
bfo_hdr_hton(hdr, MCA_PML_BFO_HDR_TYPE_RNDV,
|
|
sendreq->req_send.req_base.req_proc);
|
|
|
|
/* update lengths */
|
|
segment->seg_len = sizeof(mca_pml_bfo_rendezvous_hdr_t) + max_data;
|
|
|
|
des->des_cbfunc = mca_pml_bfo_rndv_completion;
|
|
des->des_cbdata = sendreq;
|
|
|
|
/* buffer the remainder of the message */
|
|
rc = mca_pml_base_bsend_request_alloc((ompi_request_t*)sendreq);
|
|
if( OPAL_UNLIKELY(OMPI_SUCCESS != rc) ) {
|
|
mca_bml_base_free(bml_btl, des);
|
|
return rc;
|
|
}
|
|
|
|
iov.iov_base = (IOVBASE_TYPE*)(((unsigned char*)sendreq->req_send.req_addr) + max_data);
|
|
iov.iov_len = max_data = sendreq->req_send.req_bytes_packed - max_data;
|
|
|
|
if((rc = opal_convertor_pack( &sendreq->req_send.req_base.req_convertor,
|
|
&iov,
|
|
&iov_count,
|
|
&max_data)) < 0) {
|
|
mca_bml_base_free(bml_btl, des);
|
|
return rc;
|
|
}
|
|
|
|
/* re-init convertor for packed data */
|
|
opal_convertor_prepare_for_send( &sendreq->req_send.req_base.req_convertor,
|
|
&(ompi_mpi_byte.dt.super),
|
|
sendreq->req_send.req_bytes_packed,
|
|
sendreq->req_send.req_addr );
|
|
|
|
/* wait for ack and completion */
|
|
sendreq->req_state = 2;
|
|
|
|
/* request is complete at mpi level */
|
|
OPAL_THREAD_LOCK(&ompi_request_lock);
|
|
MCA_PML_BFO_SEND_REQUEST_MPI_COMPLETE(sendreq, true);
|
|
OPAL_THREAD_UNLOCK(&ompi_request_lock);
|
|
|
|
/* send */
|
|
rc = mca_bml_base_send(bml_btl, des, MCA_PML_BFO_HDR_TYPE_RNDV);
|
|
if( OPAL_LIKELY( rc >= 0 ) ) {
|
|
if( OPAL_LIKELY( 1 == rc ) ) {
|
|
mca_pml_bfo_rndv_completion_request( bml_btl->btl, sendreq, req_bytes_delivered);
|
|
}
|
|
/* BFO FAILOVER CODE - begin */
|
|
if (des->des_flags & MCA_BTL_DES_SEND_ALWAYS_CALLBACK) {
|
|
sendreq->req_events++;
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
return OMPI_SUCCESS;
|
|
}
|
|
mca_bml_base_free(bml_btl, des );
|
|
return rc;
|
|
}
|
|
|
|
|
|
/**
|
|
* We work on a buffered request with a size smaller than the eager size
|
|
* or the BTL is not able to send the data IN_PLACE. Request a segment
|
|
* that is used for initial hdr and any eager data. This is used only
|
|
* from the _START macro.
|
|
*/
|
|
int mca_pml_bfo_send_request_start_copy( mca_pml_bfo_send_request_t* sendreq,
|
|
mca_bml_base_btl_t* bml_btl,
|
|
size_t size )
|
|
{
|
|
mca_btl_base_descriptor_t* des = NULL;
|
|
mca_btl_base_segment_t* segment;
|
|
mca_pml_bfo_hdr_t* hdr;
|
|
struct iovec iov;
|
|
unsigned int iov_count;
|
|
size_t max_data = size;
|
|
int rc;
|
|
|
|
if(NULL != bml_btl->btl->btl_sendi) {
|
|
mca_pml_bfo_match_hdr_t match;
|
|
match.hdr_common.hdr_flags = 0;
|
|
match.hdr_common.hdr_type = MCA_PML_BFO_HDR_TYPE_MATCH;
|
|
match.hdr_ctx = sendreq->req_send.req_base.req_comm->c_contextid;
|
|
match.hdr_src = sendreq->req_send.req_base.req_comm->c_my_rank;
|
|
match.hdr_tag = sendreq->req_send.req_base.req_tag;
|
|
match.hdr_seq = (uint16_t)sendreq->req_send.req_base.req_sequence;
|
|
|
|
bfo_hdr_hton(&match, MCA_PML_BFO_HDR_TYPE_MATCH,
|
|
sendreq->req_send.req_base.req_proc);
|
|
|
|
/* try to send immediately */
|
|
rc = mca_bml_base_sendi( bml_btl, &sendreq->req_send.req_base.req_convertor,
|
|
&match, OMPI_PML_BFO_MATCH_HDR_LEN,
|
|
size, MCA_BTL_NO_ORDER,
|
|
MCA_BTL_DES_FLAGS_PRIORITY | MCA_BTL_DES_FLAGS_BTL_OWNERSHIP,
|
|
MCA_PML_BFO_HDR_TYPE_MATCH,
|
|
&des);
|
|
if( OPAL_LIKELY(OMPI_SUCCESS == rc) ) {
|
|
/* BFO FAILOVER CODE - begin */
|
|
/* Needed for failover */
|
|
if (NULL != des) {
|
|
des->des_cbfunc = mca_pml_bfo_match_completion_free;
|
|
des->des_cbdata = sendreq->req_endpoint;
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
|
|
/* signal request completion */
|
|
send_request_pml_complete(sendreq);
|
|
|
|
/* check for pending requests */
|
|
MCA_PML_BFO_PROGRESS_PENDING(bml_btl->btl);
|
|
return OMPI_SUCCESS;
|
|
}
|
|
} else {
|
|
/* allocate descriptor */
|
|
mca_bml_base_alloc( bml_btl, &des,
|
|
MCA_BTL_NO_ORDER,
|
|
OMPI_PML_BFO_MATCH_HDR_LEN + size,
|
|
MCA_BTL_DES_FLAGS_PRIORITY | MCA_BTL_DES_FLAGS_BTL_OWNERSHIP);
|
|
}
|
|
if( OPAL_UNLIKELY(NULL == des) ) {
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
}
|
|
|
|
segment = des->des_src;
|
|
|
|
if(size > 0) {
|
|
/* pack the data into the supplied buffer */
|
|
iov.iov_base = (IOVBASE_TYPE*)((unsigned char*)segment->seg_addr.pval +
|
|
OMPI_PML_BFO_MATCH_HDR_LEN);
|
|
iov.iov_len = size;
|
|
iov_count = 1;
|
|
/*
|
|
* Before copy the user buffer, make the target part
|
|
* accessible.
|
|
*/
|
|
MEMCHECKER(
|
|
memchecker_call(&opal_memchecker_base_mem_defined,
|
|
sendreq->req_send.req_base.req_addr,
|
|
sendreq->req_send.req_base.req_count,
|
|
sendreq->req_send.req_base.req_datatype);
|
|
);
|
|
(void)opal_convertor_pack( &sendreq->req_send.req_base.req_convertor,
|
|
&iov, &iov_count, &max_data );
|
|
/*
|
|
* Packing finished, make the user buffer unaccessable.
|
|
*/
|
|
MEMCHECKER(
|
|
memchecker_call(&opal_memchecker_base_mem_noaccess,
|
|
sendreq->req_send.req_base.req_addr,
|
|
sendreq->req_send.req_base.req_count,
|
|
sendreq->req_send.req_base.req_datatype);
|
|
);
|
|
}
|
|
|
|
|
|
/* build match header */
|
|
hdr = (mca_pml_bfo_hdr_t*)segment->seg_addr.pval;
|
|
hdr->hdr_common.hdr_flags = 0;
|
|
hdr->hdr_common.hdr_type = MCA_PML_BFO_HDR_TYPE_MATCH;
|
|
hdr->hdr_match.hdr_ctx = sendreq->req_send.req_base.req_comm->c_contextid;
|
|
hdr->hdr_match.hdr_src = sendreq->req_send.req_base.req_comm->c_my_rank;
|
|
hdr->hdr_match.hdr_tag = sendreq->req_send.req_base.req_tag;
|
|
hdr->hdr_match.hdr_seq = (uint16_t)sendreq->req_send.req_base.req_sequence;
|
|
|
|
bfo_hdr_hton(hdr, MCA_PML_BFO_HDR_TYPE_MATCH,
|
|
sendreq->req_send.req_base.req_proc);
|
|
|
|
/* update lengths */
|
|
segment->seg_len = OMPI_PML_BFO_MATCH_HDR_LEN + max_data;
|
|
|
|
/* short message */
|
|
des->des_cbdata = sendreq;
|
|
des->des_cbfunc = mca_pml_bfo_match_completion_free;
|
|
|
|
/* send */
|
|
rc = mca_bml_base_send_status(bml_btl, des, MCA_PML_BFO_HDR_TYPE_MATCH);
|
|
if( OPAL_LIKELY( rc >= OMPI_SUCCESS ) ) {
|
|
if( OPAL_LIKELY( 1 == rc ) ) {
|
|
mca_pml_bfo_match_completion_free_request( bml_btl->btl, sendreq );
|
|
}
|
|
return OMPI_SUCCESS;
|
|
}
|
|
switch(OPAL_SOS_GET_ERROR_CODE(rc)) {
|
|
case OMPI_ERR_RESOURCE_BUSY:
|
|
/* No more resources. Allow the upper level to queue the send */
|
|
rc = OMPI_ERR_OUT_OF_RESOURCE;
|
|
break;
|
|
default:
|
|
mca_bml_base_free(bml_btl, des);
|
|
break;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* BTL can send directly from user buffer so allow the BTL
|
|
* to prepare the segment list. Start sending a small message.
|
|
*/
|
|
|
|
int mca_pml_bfo_send_request_start_prepare( mca_pml_bfo_send_request_t* sendreq,
|
|
mca_bml_base_btl_t* bml_btl,
|
|
size_t size )
|
|
{
|
|
mca_btl_base_descriptor_t* des;
|
|
mca_btl_base_segment_t* segment;
|
|
mca_pml_bfo_hdr_t* hdr;
|
|
int rc;
|
|
|
|
/* prepare descriptor */
|
|
mca_bml_base_prepare_src( bml_btl,
|
|
NULL,
|
|
&sendreq->req_send.req_base.req_convertor,
|
|
MCA_BTL_NO_ORDER,
|
|
OMPI_PML_BFO_MATCH_HDR_LEN,
|
|
&size,
|
|
MCA_BTL_DES_FLAGS_PRIORITY | MCA_BTL_DES_FLAGS_BTL_OWNERSHIP,
|
|
&des );
|
|
if( OPAL_UNLIKELY(NULL == des) ) {
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
}
|
|
segment = des->des_src;
|
|
|
|
/* build match header */
|
|
hdr = (mca_pml_bfo_hdr_t*)segment->seg_addr.pval;
|
|
hdr->hdr_common.hdr_flags = 0;
|
|
hdr->hdr_common.hdr_type = MCA_PML_BFO_HDR_TYPE_MATCH;
|
|
hdr->hdr_match.hdr_ctx = sendreq->req_send.req_base.req_comm->c_contextid;
|
|
hdr->hdr_match.hdr_src = sendreq->req_send.req_base.req_comm->c_my_rank;
|
|
hdr->hdr_match.hdr_tag = sendreq->req_send.req_base.req_tag;
|
|
hdr->hdr_match.hdr_seq = (uint16_t)sendreq->req_send.req_base.req_sequence;
|
|
|
|
bfo_hdr_hton(hdr, MCA_PML_BFO_HDR_TYPE_MATCH,
|
|
sendreq->req_send.req_base.req_proc);
|
|
|
|
/* short message */
|
|
des->des_cbfunc = mca_pml_bfo_match_completion_free;
|
|
des->des_cbdata = sendreq;
|
|
|
|
/* send */
|
|
rc = mca_bml_base_send(bml_btl, des, MCA_PML_BFO_HDR_TYPE_MATCH);
|
|
if( OPAL_LIKELY( rc >= 0 ) ) {
|
|
if( OPAL_LIKELY( 1 == rc ) ) {
|
|
mca_pml_bfo_match_completion_free_request( bml_btl->btl, sendreq );
|
|
}
|
|
return OMPI_SUCCESS;
|
|
}
|
|
mca_bml_base_free(bml_btl, des );
|
|
return rc;
|
|
}
|
|
|
|
|
|
/**
|
|
* We have contigous data that is registered - schedule across
|
|
* available nics.
|
|
*/
|
|
|
|
int mca_pml_bfo_send_request_start_rdma( mca_pml_bfo_send_request_t* sendreq,
|
|
mca_bml_base_btl_t* bml_btl,
|
|
size_t size )
|
|
{
|
|
/*
|
|
* When req_rdma array is constructed the first element of the array always
|
|
* assigned different btl in round robin fashion (if there are more than
|
|
* one RDMA capable BTLs). This way round robin distribution of RDMA
|
|
* operation is achieved.
|
|
*/
|
|
|
|
mca_btl_base_descriptor_t* des;
|
|
mca_btl_base_segment_t* segment;
|
|
mca_pml_bfo_hdr_t* hdr;
|
|
bool need_local_cb = false;
|
|
int rc;
|
|
|
|
bml_btl = sendreq->req_rdma[0].bml_btl;
|
|
if((sendreq->req_rdma_cnt == 1) && (bml_btl->btl_flags & MCA_BTL_FLAGS_GET)) {
|
|
mca_mpool_base_registration_t* reg = sendreq->req_rdma[0].btl_reg;
|
|
mca_btl_base_descriptor_t* src;
|
|
size_t i;
|
|
size_t old_position = sendreq->req_send.req_base.req_convertor.bConverted;
|
|
|
|
MEMCHECKER(
|
|
memchecker_call(&opal_memchecker_base_mem_defined,
|
|
sendreq->req_send.req_base.req_addr,
|
|
sendreq->req_send.req_base.req_count,
|
|
sendreq->req_send.req_base.req_datatype);
|
|
);
|
|
/* prepare source descriptor/segment(s) */
|
|
/* PML owns this descriptor and will free it in */
|
|
/* get_completion */
|
|
mca_bml_base_prepare_src( bml_btl,
|
|
reg,
|
|
&sendreq->req_send.req_base.req_convertor,
|
|
MCA_BTL_NO_ORDER,
|
|
0,
|
|
&size,
|
|
0,
|
|
&src );
|
|
MEMCHECKER(
|
|
memchecker_call(&opal_memchecker_base_mem_noaccess,
|
|
sendreq->req_send.req_base.req_addr,
|
|
sendreq->req_send.req_base.req_count,
|
|
sendreq->req_send.req_base.req_datatype);
|
|
);
|
|
if( OPAL_UNLIKELY(NULL == src) ) {
|
|
opal_convertor_set_position(&sendreq->req_send.req_base.req_convertor,
|
|
&old_position);
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
}
|
|
src->des_cbfunc = mca_pml_bfo_rget_completion;
|
|
src->des_cbdata = sendreq;
|
|
|
|
/* allocate space for get hdr + segment list */
|
|
mca_bml_base_alloc(bml_btl, &des, MCA_BTL_NO_ORDER,
|
|
sizeof(mca_pml_bfo_rget_hdr_t) +
|
|
(sizeof(mca_btl_base_segment_t) * (src->des_src_cnt-1)),
|
|
MCA_BTL_DES_FLAGS_PRIORITY | MCA_BTL_DES_FLAGS_BTL_OWNERSHIP);
|
|
if( OPAL_UNLIKELY(NULL == des) ) {
|
|
opal_convertor_set_position( &sendreq->req_send.req_base.req_convertor,
|
|
&old_position );
|
|
mca_bml_base_free(bml_btl, src);
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
}
|
|
segment = des->des_src;
|
|
|
|
/* build match header */
|
|
hdr = (mca_pml_bfo_hdr_t*)segment->seg_addr.pval;
|
|
hdr->hdr_common.hdr_flags = MCA_PML_BFO_HDR_FLAGS_CONTIG|MCA_PML_BFO_HDR_FLAGS_PIN;
|
|
hdr->hdr_common.hdr_type = MCA_PML_BFO_HDR_TYPE_RGET;
|
|
hdr->hdr_match.hdr_ctx = sendreq->req_send.req_base.req_comm->c_contextid;
|
|
hdr->hdr_match.hdr_src = sendreq->req_send.req_base.req_comm->c_my_rank;
|
|
hdr->hdr_match.hdr_tag = sendreq->req_send.req_base.req_tag;
|
|
hdr->hdr_match.hdr_seq = (uint16_t)sendreq->req_send.req_base.req_sequence;
|
|
hdr->hdr_rndv.hdr_msg_length = sendreq->req_send.req_bytes_packed;
|
|
hdr->hdr_rndv.hdr_src_req.pval = sendreq;
|
|
/* BFO FAILOVER CODE - begin */
|
|
if (0 < sendreq->req_restartseq) {
|
|
hdr->hdr_common.hdr_flags |= MCA_PML_BFO_HDR_FLAGS_RESTART;
|
|
hdr->hdr_rndv.hdr_dst_req = sendreq->req_recv;
|
|
hdr->hdr_rndv.hdr_restartseq = sendreq->req_restartseq;
|
|
opal_output_verbose(30, mca_pml_bfo_output,
|
|
"RGET: restarting: PML=%d, RQS=%d, CTX=%d, SRC=%d, "
|
|
"src_req=%p, dst_req=%p, peer=%d",
|
|
(uint16_t)sendreq->req_send.req_base.req_sequence,
|
|
sendreq->req_restartseq,
|
|
sendreq->req_send.req_base.req_comm->c_contextid,
|
|
sendreq->req_send.req_base.req_comm->c_my_rank,
|
|
(void *)sendreq, sendreq->req_recv.pval,
|
|
sendreq->req_send.req_base.req_peer);
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
hdr->hdr_rget.hdr_des.pval = src;
|
|
hdr->hdr_rget.hdr_seg_cnt = src->des_src_cnt;
|
|
|
|
bfo_hdr_hton(hdr, MCA_PML_BFO_HDR_TYPE_RGET,
|
|
sendreq->req_send.req_base.req_proc);
|
|
|
|
for( i = 0; i < src->des_src_cnt; i++ ) {
|
|
hdr->hdr_rget.hdr_segs[i].seg_addr.lval = ompi_ptr_ptol(src->des_src[i].seg_addr.pval);
|
|
hdr->hdr_rget.hdr_segs[i].seg_len = src->des_src[i].seg_len;
|
|
hdr->hdr_rget.hdr_segs[i].seg_key.key64 = src->des_src[i].seg_key.key64;
|
|
}
|
|
|
|
des->des_cbfunc = mca_pml_bfo_send_ctl_completion;
|
|
|
|
/**
|
|
* Well, it's a get so we will not know when the peer get the data anyway.
|
|
* If we generate the PERUSE event here, at least we will know when do we
|
|
* sent the GET message ...
|
|
*/
|
|
if( sendreq->req_send.req_bytes_packed > 0 ) {
|
|
PERUSE_TRACE_COMM_EVENT( PERUSE_COMM_REQ_XFER_BEGIN,
|
|
&(sendreq->req_send.req_base), PERUSE_SEND );
|
|
}
|
|
|
|
} else {
|
|
|
|
/* allocate a rendezvous header - dont eager send any data
|
|
* receiver will schedule rdma put(s) of the entire message
|
|
*/
|
|
|
|
mca_bml_base_alloc(bml_btl, &des,
|
|
MCA_BTL_NO_ORDER,
|
|
sizeof(mca_pml_bfo_rendezvous_hdr_t),
|
|
MCA_BTL_DES_FLAGS_PRIORITY | MCA_BTL_DES_FLAGS_BTL_OWNERSHIP);
|
|
if( OPAL_UNLIKELY(NULL == des)) {
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
}
|
|
segment = des->des_src;
|
|
|
|
/* build hdr */
|
|
hdr = (mca_pml_bfo_hdr_t*)segment->seg_addr.pval;
|
|
hdr->hdr_common.hdr_flags = MCA_PML_BFO_HDR_FLAGS_CONTIG|MCA_PML_BFO_HDR_FLAGS_PIN;
|
|
hdr->hdr_common.hdr_type = MCA_PML_BFO_HDR_TYPE_RNDV;
|
|
hdr->hdr_match.hdr_ctx = sendreq->req_send.req_base.req_comm->c_contextid;
|
|
hdr->hdr_match.hdr_src = sendreq->req_send.req_base.req_comm->c_my_rank;
|
|
hdr->hdr_match.hdr_tag = sendreq->req_send.req_base.req_tag;
|
|
hdr->hdr_match.hdr_seq = (uint16_t)sendreq->req_send.req_base.req_sequence;
|
|
hdr->hdr_rndv.hdr_msg_length = sendreq->req_send.req_bytes_packed;
|
|
hdr->hdr_rndv.hdr_src_req.pval = sendreq;
|
|
/* BFO FAILOVER CODE - begin */
|
|
if (0 < sendreq->req_restartseq) {
|
|
hdr->hdr_common.hdr_flags |= MCA_PML_BFO_HDR_FLAGS_RESTART;
|
|
hdr->hdr_rndv.hdr_dst_req = sendreq->req_recv;
|
|
hdr->hdr_rndv.hdr_restartseq = sendreq->req_restartseq;
|
|
opal_output_verbose(30, mca_pml_bfo_output,
|
|
"RNDV: restarting: PML=%d, RQS=%d, CTX=%d, SRC=%d, "
|
|
"src_req=%p, dst_req=%p, peer=%d",
|
|
(uint16_t)sendreq->req_send.req_base.req_sequence,
|
|
sendreq->req_restartseq,
|
|
sendreq->req_send.req_base.req_comm->c_contextid,
|
|
sendreq->req_send.req_base.req_comm->c_my_rank,
|
|
(void *)sendreq, sendreq->req_recv.pval,
|
|
sendreq->req_send.req_base.req_peer);
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
|
|
bfo_hdr_hton(hdr, MCA_PML_BFO_HDR_TYPE_RNDV,
|
|
sendreq->req_send.req_base.req_proc);
|
|
|
|
/* update lengths with number of bytes actually packed */
|
|
segment->seg_len = sizeof(mca_pml_bfo_rendezvous_hdr_t);
|
|
|
|
/* first fragment of a long message */
|
|
des->des_cbfunc = mca_pml_bfo_rndv_completion;
|
|
need_local_cb = true;
|
|
|
|
/* wait for ack and completion */
|
|
sendreq->req_state = 2;
|
|
}
|
|
|
|
des->des_cbdata = sendreq;
|
|
|
|
/* send */
|
|
rc = mca_bml_base_send(bml_btl, des, hdr->hdr_common.hdr_type);
|
|
if( OPAL_LIKELY( rc >= 0 ) ) {
|
|
if( OPAL_LIKELY( 1 == rc ) && (true == need_local_cb)) {
|
|
mca_pml_bfo_rndv_completion_request( bml_btl->btl, sendreq, 0 );
|
|
}
|
|
/* BFO FAILOVER CODE - begin */
|
|
if ((des->des_flags & MCA_BTL_DES_SEND_ALWAYS_CALLBACK) &&
|
|
(MCA_PML_BFO_HDR_TYPE_RNDV == hdr->hdr_common.hdr_type)) {
|
|
sendreq->req_events++;
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
return OMPI_SUCCESS;
|
|
}
|
|
mca_bml_base_free(bml_btl, des);
|
|
return rc;
|
|
}
|
|
|
|
|
|
/**
|
|
* Rendezvous is required. Not doing rdma so eager send up to
|
|
* the btls eager limit.
|
|
*/
|
|
|
|
int mca_pml_bfo_send_request_start_rndv( mca_pml_bfo_send_request_t* sendreq,
|
|
mca_bml_base_btl_t* bml_btl,
|
|
size_t size,
|
|
int flags )
|
|
{
|
|
mca_btl_base_descriptor_t* des;
|
|
mca_btl_base_segment_t* segment;
|
|
mca_pml_bfo_hdr_t* hdr;
|
|
int rc;
|
|
|
|
/* prepare descriptor */
|
|
if(size == 0) {
|
|
mca_bml_base_alloc( bml_btl,
|
|
&des,
|
|
MCA_BTL_NO_ORDER,
|
|
sizeof(mca_pml_bfo_rendezvous_hdr_t),
|
|
MCA_BTL_DES_FLAGS_PRIORITY | MCA_BTL_DES_FLAGS_BTL_OWNERSHIP );
|
|
} else {
|
|
MEMCHECKER(
|
|
memchecker_call(&opal_memchecker_base_mem_defined,
|
|
sendreq->req_send.req_base.req_addr,
|
|
sendreq->req_send.req_base.req_count,
|
|
sendreq->req_send.req_base.req_datatype);
|
|
);
|
|
mca_bml_base_prepare_src( bml_btl,
|
|
NULL,
|
|
&sendreq->req_send.req_base.req_convertor,
|
|
MCA_BTL_NO_ORDER,
|
|
sizeof(mca_pml_bfo_rendezvous_hdr_t),
|
|
&size,
|
|
MCA_BTL_DES_FLAGS_PRIORITY | MCA_BTL_DES_FLAGS_BTL_OWNERSHIP,
|
|
&des );
|
|
MEMCHECKER(
|
|
memchecker_call(&opal_memchecker_base_mem_noaccess,
|
|
sendreq->req_send.req_base.req_addr,
|
|
sendreq->req_send.req_base.req_count,
|
|
sendreq->req_send.req_base.req_datatype);
|
|
);
|
|
}
|
|
|
|
if( OPAL_UNLIKELY(NULL == des) ) {
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
}
|
|
segment = des->des_src;
|
|
|
|
/* build hdr */
|
|
hdr = (mca_pml_bfo_hdr_t*)segment->seg_addr.pval;
|
|
hdr->hdr_common.hdr_flags = flags;
|
|
hdr->hdr_common.hdr_type = MCA_PML_BFO_HDR_TYPE_RNDV;
|
|
hdr->hdr_match.hdr_ctx = sendreq->req_send.req_base.req_comm->c_contextid;
|
|
hdr->hdr_match.hdr_src = sendreq->req_send.req_base.req_comm->c_my_rank;
|
|
hdr->hdr_match.hdr_tag = sendreq->req_send.req_base.req_tag;
|
|
hdr->hdr_match.hdr_seq = (uint16_t)sendreq->req_send.req_base.req_sequence;
|
|
hdr->hdr_rndv.hdr_msg_length = sendreq->req_send.req_bytes_packed;
|
|
hdr->hdr_rndv.hdr_src_req.pval = sendreq;
|
|
/* BFO FAILOVER CODE - begin */
|
|
if (0 < sendreq->req_restartseq) {
|
|
hdr->hdr_common.hdr_flags |= MCA_PML_BFO_HDR_FLAGS_RESTART;
|
|
hdr->hdr_rndv.hdr_dst_req = sendreq->req_recv;
|
|
hdr->hdr_rndv.hdr_restartseq = sendreq->req_restartseq;
|
|
opal_output_verbose(30, mca_pml_bfo_output,
|
|
"RNDV: restarting: PML=%d, RQS=%d, CTX=%d, SRC=%d, "
|
|
"src_req=%p, dst_req=%p, peer=%d",
|
|
(uint16_t)sendreq->req_send.req_base.req_sequence, sendreq->req_restartseq,
|
|
sendreq->req_send.req_base.req_comm->c_contextid,
|
|
sendreq->req_send.req_base.req_comm->c_my_rank,
|
|
(void *)sendreq, sendreq->req_recv.pval,
|
|
sendreq->req_send.req_base.req_peer);
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
|
|
bfo_hdr_hton(hdr, MCA_PML_BFO_HDR_TYPE_RNDV,
|
|
sendreq->req_send.req_base.req_proc);
|
|
|
|
/* first fragment of a long message */
|
|
des->des_cbdata = sendreq;
|
|
des->des_cbfunc = mca_pml_bfo_rndv_completion;
|
|
|
|
/* wait for ack and completion */
|
|
sendreq->req_state = 2;
|
|
|
|
/* send */
|
|
rc = mca_bml_base_send(bml_btl, des, MCA_PML_BFO_HDR_TYPE_RNDV);
|
|
if( OPAL_LIKELY( rc >= 0 ) ) {
|
|
if( OPAL_LIKELY( 1 == rc ) ) {
|
|
mca_pml_bfo_rndv_completion_request( bml_btl->btl, sendreq, size );
|
|
}
|
|
/* BFO FAILOVER CODE - begin */
|
|
if (des->des_flags & MCA_BTL_DES_SEND_ALWAYS_CALLBACK) {
|
|
sendreq->req_events++;
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
return OMPI_SUCCESS;
|
|
}
|
|
mca_bml_base_free(bml_btl, des );
|
|
return rc;
|
|
}
|
|
|
|
void mca_pml_bfo_send_request_copy_in_out( mca_pml_bfo_send_request_t *sendreq,
|
|
uint64_t send_offset,
|
|
uint64_t send_length )
|
|
{
|
|
mca_pml_bfo_send_range_t *sr;
|
|
ompi_free_list_item_t *i;
|
|
mca_bml_base_endpoint_t* bml_endpoint = sendreq->req_endpoint;
|
|
int num_btls = mca_bml_base_btl_array_get_size(&bml_endpoint->btl_send);
|
|
int rc = OMPI_SUCCESS, n;
|
|
double weight_total = 0;
|
|
|
|
if( OPAL_UNLIKELY(0 == send_length) )
|
|
return;
|
|
|
|
OMPI_FREE_LIST_WAIT(&mca_pml_bfo.send_ranges, i, rc);
|
|
|
|
sr = (mca_pml_bfo_send_range_t*)i;
|
|
|
|
sr->range_send_offset = send_offset;
|
|
sr->range_send_length = send_length;
|
|
sr->range_btl_idx = 0;
|
|
|
|
for(n = 0; n < num_btls && n < mca_pml_bfo.max_send_per_range; n++) {
|
|
sr->range_btls[n].bml_btl =
|
|
mca_bml_base_btl_array_get_next(&bml_endpoint->btl_send);
|
|
weight_total += sr->range_btls[n].bml_btl->btl_weight;
|
|
}
|
|
|
|
sr->range_btl_cnt = n;
|
|
mca_pml_bfo_calc_weighted_length(sr->range_btls, n, send_length,
|
|
weight_total);
|
|
|
|
OPAL_THREAD_LOCK(&sendreq->req_send_range_lock);
|
|
opal_list_append(&sendreq->req_send_ranges, (opal_list_item_t*)sr);
|
|
OPAL_THREAD_UNLOCK(&sendreq->req_send_range_lock);
|
|
}
|
|
|
|
static inline mca_pml_bfo_send_range_t *
|
|
get_send_range_nolock(mca_pml_bfo_send_request_t* sendreq)
|
|
{
|
|
opal_list_item_t *item;
|
|
|
|
item = opal_list_get_first(&sendreq->req_send_ranges);
|
|
|
|
if(opal_list_get_end(&sendreq->req_send_ranges) == item)
|
|
return NULL;
|
|
|
|
return (mca_pml_bfo_send_range_t*)item;
|
|
}
|
|
|
|
static inline mca_pml_bfo_send_range_t *
|
|
get_send_range(mca_pml_bfo_send_request_t* sendreq)
|
|
{
|
|
mca_pml_bfo_send_range_t *range;
|
|
|
|
OPAL_THREAD_LOCK(&sendreq->req_send_range_lock);
|
|
range = get_send_range_nolock(sendreq);
|
|
OPAL_THREAD_UNLOCK(&sendreq->req_send_range_lock);
|
|
|
|
return range;
|
|
}
|
|
|
|
static inline mca_pml_bfo_send_range_t *
|
|
get_next_send_range(mca_pml_bfo_send_request_t* sendreq,
|
|
mca_pml_bfo_send_range_t *range)
|
|
{
|
|
OPAL_THREAD_LOCK(&sendreq->req_send_range_lock);
|
|
opal_list_remove_item(&sendreq->req_send_ranges, (opal_list_item_t *)range);
|
|
OMPI_FREE_LIST_RETURN(&mca_pml_bfo.send_ranges, &range->base);
|
|
range = get_send_range_nolock(sendreq);
|
|
OPAL_THREAD_UNLOCK(&sendreq->req_send_range_lock);
|
|
|
|
return range;
|
|
}
|
|
|
|
/**
|
|
* Schedule pipeline of send descriptors for the given request.
|
|
* Up to the rdma threshold. If this is a send based protocol,
|
|
* the rdma threshold is the end of the message. Otherwise, schedule
|
|
* fragments up to the threshold to overlap initial registration/setup
|
|
* costs of the rdma. Only one thread can be inside this function.
|
|
*/
|
|
|
|
int
|
|
mca_pml_bfo_send_request_schedule_once(mca_pml_bfo_send_request_t* sendreq)
|
|
{
|
|
size_t prev_bytes_remaining = 0;
|
|
mca_pml_bfo_send_range_t *range;
|
|
int num_fail = 0;
|
|
|
|
/* check pipeline_depth here before attempting to get any locks */
|
|
if(true == sendreq->req_throttle_sends &&
|
|
sendreq->req_pipeline_depth >= mca_pml_bfo.send_pipeline_depth)
|
|
return OMPI_SUCCESS;
|
|
|
|
range = get_send_range(sendreq);
|
|
|
|
while(range && (false == sendreq->req_throttle_sends ||
|
|
sendreq->req_pipeline_depth < mca_pml_bfo.send_pipeline_depth)) {
|
|
mca_pml_bfo_frag_hdr_t* hdr;
|
|
mca_btl_base_descriptor_t* des;
|
|
int rc, btl_idx;
|
|
size_t size, offset, data_remaining = 0;
|
|
mca_bml_base_btl_t* bml_btl;
|
|
|
|
assert(range->range_send_length != 0);
|
|
/* BFO FAILOVER CODE - begin */
|
|
/* Failover code. If this is true, this means the request thinks we
|
|
* have more BTLs than there really are. This can happen because
|
|
* a BTL was removed from the available list. In this case, we
|
|
* want to start over. */
|
|
if ((int)mca_bml_base_btl_array_get_size(&sendreq->req_endpoint->btl_send)
|
|
!= range->range_btl_cnt) {
|
|
sendreq->req_error++;
|
|
return OMPI_ERROR;
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
|
|
if(prev_bytes_remaining == range->range_send_length)
|
|
num_fail++;
|
|
else
|
|
num_fail = 0;
|
|
|
|
prev_bytes_remaining = range->range_send_length;
|
|
|
|
if( OPAL_UNLIKELY(num_fail == range->range_btl_cnt) ) {
|
|
assert(sendreq->req_pending == MCA_PML_BFO_SEND_PENDING_NONE);
|
|
add_request_to_send_pending(sendreq,
|
|
MCA_PML_BFO_SEND_PENDING_SCHEDULE, true);
|
|
/* Note that request remains locked. send_request_process_pending()
|
|
* function will call shedule_exclusive() directly without taking
|
|
* the lock */
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
}
|
|
|
|
cannot_pack:
|
|
do {
|
|
btl_idx = range->range_btl_idx;
|
|
if(++range->range_btl_idx == range->range_btl_cnt)
|
|
range->range_btl_idx = 0;
|
|
} while(!range->range_btls[btl_idx].length);
|
|
|
|
bml_btl = range->range_btls[btl_idx].bml_btl;
|
|
/* If there is a remaining data from another BTL that was too small
|
|
* for converter to pack then send it through another BTL */
|
|
range->range_btls[btl_idx].length += data_remaining;
|
|
size = range->range_btls[btl_idx].length;
|
|
|
|
/* makes sure that we don't exceed BTL max send size */
|
|
if(bml_btl->btl->btl_max_send_size != 0) {
|
|
size_t max_send_size = bml_btl->btl->btl_max_send_size -
|
|
sizeof(mca_pml_bfo_frag_hdr_t);
|
|
|
|
if (size > max_send_size) {
|
|
size = max_send_size;
|
|
}
|
|
}
|
|
|
|
/* pack into a descriptor */
|
|
offset = (size_t)range->range_send_offset;
|
|
opal_convertor_set_position(&sendreq->req_send.req_base.req_convertor,
|
|
&offset);
|
|
range->range_send_offset = (uint64_t)offset;
|
|
|
|
data_remaining = size;
|
|
MEMCHECKER(
|
|
memchecker_call(&opal_memchecker_base_mem_defined,
|
|
sendreq->req_send.req_base.req_addr,
|
|
sendreq->req_send.req_base.req_count,
|
|
sendreq->req_send.req_base.req_datatype);
|
|
);
|
|
mca_bml_base_prepare_src(bml_btl, NULL,
|
|
&sendreq->req_send.req_base.req_convertor,
|
|
MCA_BTL_NO_ORDER,
|
|
sizeof(mca_pml_bfo_frag_hdr_t),
|
|
&size, MCA_BTL_DES_FLAGS_BTL_OWNERSHIP | MCA_BTL_DES_SEND_ALWAYS_CALLBACK, &des);
|
|
MEMCHECKER(
|
|
memchecker_call(&opal_memchecker_base_mem_noaccess,
|
|
sendreq->req_send.req_base.req_addr,
|
|
sendreq->req_send.req_base.req_count,
|
|
sendreq->req_send.req_base.req_datatype);
|
|
);
|
|
|
|
if( OPAL_UNLIKELY(des == NULL || size == 0) ) {
|
|
if(des) {
|
|
/* Converter can't pack this chunk. Append to another chunk
|
|
* from other BTL */
|
|
mca_bml_base_free(bml_btl, des);
|
|
range->range_btls[btl_idx].length -= data_remaining;
|
|
goto cannot_pack;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
des->des_cbfunc = mca_pml_bfo_frag_completion;
|
|
des->des_cbdata = sendreq;
|
|
|
|
/* setup header */
|
|
hdr = (mca_pml_bfo_frag_hdr_t*)des->des_src->seg_addr.pval;
|
|
hdr->hdr_common.hdr_flags = 0;
|
|
hdr->hdr_common.hdr_type = MCA_PML_BFO_HDR_TYPE_FRAG;
|
|
hdr->hdr_frag_offset = range->range_send_offset;
|
|
hdr->hdr_src_req.pval = sendreq;
|
|
hdr->hdr_dst_req = sendreq->req_recv;
|
|
|
|
bfo_hdr_hton(hdr, MCA_PML_BFO_HDR_TYPE_FRAG,
|
|
sendreq->req_send.req_base.req_proc);
|
|
|
|
#if OMPI_WANT_PERUSE
|
|
PERUSE_TRACE_COMM_OMPI_EVENT(PERUSE_COMM_REQ_XFER_CONTINUE,
|
|
&(sendreq->req_send.req_base), size, PERUSE_SEND);
|
|
#endif /* OMPI_WANT_PERUSE */
|
|
|
|
/* initiate send - note that this may complete before the call returns */
|
|
rc = mca_bml_base_send(bml_btl, des, MCA_PML_BFO_HDR_TYPE_FRAG);
|
|
if( OPAL_LIKELY(rc >= 0) ) {
|
|
/* update state */
|
|
range->range_btls[btl_idx].length -= size;
|
|
range->range_send_length -= size;
|
|
range->range_send_offset += size;
|
|
OPAL_THREAD_ADD_SIZE_T(&sendreq->req_pipeline_depth, 1);
|
|
if(range->range_send_length == 0) {
|
|
range = get_next_send_range(sendreq, range);
|
|
prev_bytes_remaining = 0;
|
|
}
|
|
/* BFO FAILOVER CODE - begin */
|
|
if (des->des_flags & MCA_BTL_DES_SEND_ALWAYS_CALLBACK) {
|
|
sendreq->req_events++;
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
} else {
|
|
mca_bml_base_free(bml_btl,des);
|
|
}
|
|
}
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
* An RDMA put operation has completed:
|
|
* (1) Update request status and if required set completed
|
|
* (2) Send FIN control message to the destination
|
|
*/
|
|
|
|
static void mca_pml_bfo_put_completion( mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t* ep,
|
|
struct mca_btl_base_descriptor_t* des,
|
|
int status )
|
|
{
|
|
mca_pml_bfo_rdma_frag_t* frag = (mca_pml_bfo_rdma_frag_t*)des->des_cbdata;
|
|
mca_pml_bfo_send_request_t* sendreq = (mca_pml_bfo_send_request_t*)frag->rdma_req;
|
|
mca_bml_base_btl_t* bml_btl;
|
|
/* BFO FAILOVER CODE - begin */
|
|
sendreq->req_events--;
|
|
/* BFO FAILOVER CODE - end */
|
|
|
|
/* check completion status */
|
|
if( OPAL_UNLIKELY(OMPI_SUCCESS != status) ) {
|
|
/* BFO FAILOVER CODE - begin */
|
|
sendreq->req_error++;
|
|
/* BFO FAILOVER CODE - end */
|
|
}
|
|
|
|
/* BFO FAILOVER CODE - begin */
|
|
if ( OPAL_UNLIKELY(sendreq->req_error)) {
|
|
opal_output_verbose(30, mca_pml_bfo_output,
|
|
"RDMA write: completion: sendreq has error, outstanding events=%d, "
|
|
"PML=%d, RQS=%d, src_req=%p, dst_req=%p, status=%d, peer=%d",
|
|
sendreq->req_events, (uint16_t)sendreq->req_send.req_base.req_sequence,
|
|
sendreq->req_restartseq, (void *)sendreq,
|
|
sendreq->req_recv.pval,
|
|
status, sendreq->req_send.req_base.req_peer);
|
|
if (0 == sendreq->req_events) {
|
|
mca_pml_bfo_send_request_rndvrestartnotify(sendreq, false,
|
|
MCA_PML_BFO_HDR_TYPE_PUT,
|
|
status, btl);
|
|
}
|
|
MCA_PML_BFO_RDMA_FRAG_RETURN(frag);
|
|
return;
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
|
|
/* BFO FAILOVER CODE - begin */
|
|
/* Find back the bml_btl that this btl belongs to. If we cannot
|
|
* find it, then it may have been removed from underneath us, so
|
|
* find the next available one to send the FIN message on. */
|
|
bml_btl = mca_bml_base_btl_array_find(&sendreq->req_endpoint->btl_rdma, btl);
|
|
if( OPAL_UNLIKELY(NULL == bml_btl) ) {
|
|
opal_output_verbose(20, mca_pml_bfo_output,
|
|
"RDMA write completion: BML was removed from underneath us, "
|
|
"PML=%d, RQS=%d, src_req=%p, dst_req=%p, status=%d, peer=%d",
|
|
(uint16_t)sendreq->req_send.req_base.req_sequence,
|
|
sendreq->req_restartseq, (void *)sendreq,
|
|
sendreq->req_recv.pval,
|
|
status, sendreq->req_send.req_base.req_peer);
|
|
bml_btl = mca_bml_base_btl_array_get_next(&sendreq->req_endpoint->btl_rdma);
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
|
|
mca_pml_bfo_send_fin(sendreq->req_send.req_base.req_proc,
|
|
bml_btl,
|
|
frag->rdma_hdr.hdr_rdma.hdr_des,
|
|
des->order, 0, (uint16_t)sendreq->req_send.req_base.req_sequence,
|
|
sendreq->req_restartseq, sendreq->req_send.req_base.req_comm->c_contextid,
|
|
sendreq->req_send.req_base.req_comm->c_my_rank);
|
|
|
|
/* check for request completion */
|
|
OPAL_THREAD_ADD_SIZE_T(&sendreq->req_bytes_delivered, frag->rdma_length);
|
|
|
|
send_request_pml_complete_check(sendreq);
|
|
|
|
MCA_PML_BFO_RDMA_FRAG_RETURN(frag);
|
|
|
|
MCA_PML_BFO_PROGRESS_PENDING(btl);
|
|
}
|
|
|
|
int mca_pml_bfo_send_request_put_frag( mca_pml_bfo_rdma_frag_t* frag )
|
|
{
|
|
mca_mpool_base_registration_t* reg = NULL;
|
|
mca_bml_base_btl_t* bml_btl = frag->rdma_bml;
|
|
mca_btl_base_descriptor_t* des;
|
|
size_t save_size = frag->rdma_length;
|
|
int rc;
|
|
|
|
/* setup descriptor */
|
|
mca_bml_base_prepare_src( bml_btl,
|
|
reg,
|
|
&frag->convertor,
|
|
MCA_BTL_NO_ORDER,
|
|
0,
|
|
&frag->rdma_length,
|
|
MCA_BTL_DES_FLAGS_BTL_OWNERSHIP,
|
|
&des );
|
|
|
|
if( OPAL_UNLIKELY(NULL == des) ) {
|
|
if(frag->retries < mca_pml_bfo.rdma_put_retries_limit) {
|
|
size_t offset = (size_t)frag->rdma_hdr.hdr_rdma.hdr_rdma_offset;
|
|
frag->rdma_length = save_size;
|
|
opal_convertor_set_position(&frag->convertor, &offset);
|
|
OPAL_THREAD_LOCK(&mca_pml_bfo.lock);
|
|
opal_list_append(&mca_pml_bfo.rdma_pending, (opal_list_item_t*)frag);
|
|
OPAL_THREAD_UNLOCK(&mca_pml_bfo.lock);
|
|
} else {
|
|
mca_pml_bfo_send_request_t *sendreq =
|
|
(mca_pml_bfo_send_request_t*)frag->rdma_req;
|
|
|
|
/* tell receiver to unregister memory */
|
|
mca_pml_bfo_send_fin(sendreq->req_send.req_base.req_proc,
|
|
bml_btl, frag->rdma_hdr.hdr_rdma.hdr_des,
|
|
MCA_BTL_NO_ORDER, 1, (uint16_t)sendreq->req_send.req_base.req_sequence,
|
|
sendreq->req_restartseq, sendreq->req_send.req_base.req_comm->c_contextid,
|
|
sendreq->req_send.req_base.req_comm->c_my_rank);
|
|
|
|
/* send fragment by copy in/out */
|
|
mca_pml_bfo_send_request_copy_in_out(sendreq,
|
|
frag->rdma_hdr.hdr_rdma.hdr_rdma_offset, frag->rdma_length);
|
|
/* if a pointer to a receive request is not set it means that
|
|
* ACK was not yet received. Don't schedule sends before ACK */
|
|
if(NULL != sendreq->req_recv.pval)
|
|
mca_pml_bfo_send_request_schedule(sendreq);
|
|
}
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
}
|
|
|
|
des->des_dst = frag->rdma_segs;
|
|
des->des_dst_cnt = frag->rdma_hdr.hdr_rdma.hdr_seg_cnt;
|
|
des->des_cbfunc = mca_pml_bfo_put_completion;
|
|
des->des_cbdata = frag;
|
|
|
|
PERUSE_TRACE_COMM_OMPI_EVENT( PERUSE_COMM_REQ_XFER_CONTINUE,
|
|
&(((mca_pml_bfo_send_request_t*)frag->rdma_req)->req_send.req_base), save_size, PERUSE_SEND );
|
|
|
|
rc = mca_bml_base_put(bml_btl, des);
|
|
if( OPAL_UNLIKELY(OMPI_SUCCESS != rc) ) {
|
|
mca_bml_base_free(bml_btl, des);
|
|
frag->rdma_length = save_size;
|
|
if(OMPI_ERR_OUT_OF_RESOURCE == OPAL_SOS_GET_ERROR_CODE(rc)) {
|
|
OPAL_THREAD_LOCK(&mca_pml_bfo.lock);
|
|
opal_list_append(&mca_pml_bfo.rdma_pending, (opal_list_item_t*)frag);
|
|
OPAL_THREAD_UNLOCK(&mca_pml_bfo.lock);
|
|
return OMPI_ERR_OUT_OF_RESOURCE;
|
|
} else {
|
|
/* TSW - FIX */
|
|
ORTE_ERROR_LOG(rc);
|
|
orte_errmgr.abort(-1, NULL);
|
|
}
|
|
}
|
|
/* BFO FAILOVER CODE - begin */
|
|
if (des->des_flags & MCA_BTL_DES_SEND_ALWAYS_CALLBACK) {
|
|
mca_pml_bfo_send_request_t *sendreq =
|
|
(mca_pml_bfo_send_request_t*)frag->rdma_req;
|
|
sendreq->req_events++;
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* Receiver has scheduled an RDMA operation:
|
|
* (1) Allocate an RDMA fragment to maintain the state of the operation
|
|
* (2) Call BTL prepare_src to pin/prepare source buffers
|
|
* (3) Queue the RDMA put
|
|
*/
|
|
|
|
void mca_pml_bfo_send_request_put( mca_pml_bfo_send_request_t* sendreq,
|
|
mca_btl_base_module_t* btl,
|
|
mca_pml_bfo_rdma_hdr_t* hdr )
|
|
{
|
|
mca_bml_base_endpoint_t *bml_endpoint = sendreq->req_endpoint;
|
|
mca_pml_bfo_rdma_frag_t* frag;
|
|
int rc;
|
|
size_t i, size = 0;
|
|
|
|
if(hdr->hdr_common.hdr_flags & MCA_PML_BFO_HDR_TYPE_ACK) {
|
|
/* BFO FAILOVER CODE - begin */
|
|
/* Handle the failover case where a RNDV request may
|
|
* have turned into a RGET and therefore the state
|
|
* is not being tracked. */
|
|
if (sendreq->req_state != 0) {
|
|
OPAL_THREAD_ADD32(&sendreq->req_state, -1);
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
}
|
|
/* BFO FAILOVER CODE - begin */
|
|
sendreq->req_recv = hdr->hdr_dst_req; /* only needed once, but it is OK */
|
|
sendreq->req_acked = true; /* only needed once, but it is OK */
|
|
/* BFO FAILOVER CODE - end */
|
|
|
|
MCA_PML_BFO_RDMA_FRAG_ALLOC(frag, rc);
|
|
|
|
if( OPAL_UNLIKELY(NULL == frag) ) {
|
|
/* TSW - FIX */
|
|
ORTE_ERROR_LOG(rc);
|
|
orte_errmgr.abort(-1, NULL);
|
|
}
|
|
|
|
/* setup fragment */
|
|
for( i = 0; i < hdr->hdr_seg_cnt; i++ ) {
|
|
frag->rdma_segs[i].seg_addr.lval = hdr->hdr_segs[i].seg_addr.lval;
|
|
frag->rdma_segs[i].seg_len = hdr->hdr_segs[i].seg_len;
|
|
frag->rdma_segs[i].seg_key.key64 = hdr->hdr_segs[i].seg_key.key64;
|
|
|
|
#if OPAL_ENABLE_HETEROGENEOUS_SUPPORT
|
|
if ((sendreq->req_send.req_base.req_proc->proc_arch & OPAL_ARCH_ISBIGENDIAN) !=
|
|
(ompi_proc_local()->proc_arch & OPAL_ARCH_ISBIGENDIAN)) {
|
|
size += opal_swap_bytes4(frag->rdma_segs[i].seg_len);
|
|
} else
|
|
#endif
|
|
{
|
|
size += frag->rdma_segs[i].seg_len;
|
|
}
|
|
}
|
|
|
|
frag->rdma_bml = mca_bml_base_btl_array_find(&bml_endpoint->btl_rdma, btl);
|
|
/* BFO FAILOVER CODE - begin */
|
|
frag->rdma_btl = btl;
|
|
if( OPAL_UNLIKELY(NULL == frag->rdma_bml) ) {
|
|
opal_output(0, "[%s:%d] invalid bml for rdma put", __FILE__, __LINE__);
|
|
MCA_PML_BFO_RDMA_FRAG_RETURN(frag);
|
|
sendreq->req_error++;
|
|
if (0 == sendreq->req_events) {
|
|
opal_output(0, "[%s:%d] Issuing rndvrestartnotify", __FILE__, __LINE__);
|
|
mca_pml_bfo_send_request_rndvrestartnotify(sendreq, false,
|
|
MCA_PML_BFO_HDR_TYPE_PUT,
|
|
OMPI_ERROR, btl);
|
|
}
|
|
return;
|
|
}
|
|
/* BFO FAILOVER CODE - end */
|
|
frag->rdma_hdr.hdr_rdma = *hdr;
|
|
frag->rdma_req = sendreq;
|
|
frag->rdma_ep = bml_endpoint;
|
|
frag->rdma_length = size;
|
|
frag->rdma_state = MCA_PML_BFO_RDMA_PUT;
|
|
frag->reg = NULL;
|
|
frag->retries = 0;
|
|
|
|
/* lookup the corresponding registration */
|
|
for(i=0; i<sendreq->req_rdma_cnt; i++) {
|
|
if(sendreq->req_rdma[i].bml_btl == frag->rdma_bml) {
|
|
frag->reg = sendreq->req_rdma[i].btl_reg;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* RDMA writes may proceed in parallel to send and to each other, so
|
|
* create clone of the convertor for each RDMA fragment
|
|
*/
|
|
size = hdr->hdr_rdma_offset;
|
|
opal_convertor_clone_with_position(&sendreq->req_send.req_base.req_convertor,
|
|
&frag->convertor, 0, &size);
|
|
|
|
mca_pml_bfo_send_request_put_frag(frag);
|
|
}
|
|
|