1a9f48c89d
r14703 for the point-to-point component.
* Associate the list of long message requests to poll with the
component, not the individual modules
* add progress thread that sits on the OMPI request structure
and wakes up at the appropriate time to poll the message
list to move long messages asynchronously.
* Instead of calling opal_progress() all over the place, move
to using the condition variables like the rest of the project.
Has the advantage of moving it slightly further along in the
becoming thread safe thing.
* Fix a problem with the passive side of unlock where it could
go recursive and cause all kinds of problems, especially
when progress threads are used. Instead, have two parts of
passive unlock -- one to start the unlock, and another to
complete the lock and send the ack back. The data moving
code trips the second at the right time.
This commit was SVN r14751.
The following SVN revision numbers were found above:
r14703 --> open-mpi/ompi@2b4b754925
884 строки
31 KiB
C
884 строки
31 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University.
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* All rights reserved.
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* Copyright (c) 2004-2006 The Trustees of the University of Tennessee.
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* All rights 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 (c) 2007 Los Alamos National Security, LLC. All rights
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* 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 "osc_rdma.h"
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#include "osc_rdma_sendreq.h"
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#include "osc_rdma_header.h"
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#include "osc_rdma_data_move.h"
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#include "osc_rdma_obj_convert.h"
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#include "opal/util/output.h"
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#include "opal/sys/atomic.h"
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#include "ompi/mca/bml/bml.h"
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#include "ompi/mca/bml/base/base.h"
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#include "ompi/mca/btl/btl.h"
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#include "ompi/mca/osc/base/base.h"
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#include "ompi/datatype/datatype.h"
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#include "ompi/datatype/dt_arch.h"
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static inline int32_t
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create_send_tag(ompi_osc_rdma_module_t *module)
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{
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#if OMPI_HAVE_THREAD_SUPPORT && OPAL_HAVE_ATOMIC_CMPSET_32
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int32_t newval, oldval;
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do {
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oldval = module->m_tag_counter;
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newval = (oldval + 1) % mca_pml.pml_max_tag;
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} while (0 == opal_atomic_cmpset_32(&module->m_tag_counter, oldval, newval));
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return newval;
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#elif OMPI_HAVE_THREAD_SUPPORT
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int32_t ret;
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/* no compare and swap - have to lock the module */
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OPAL_THREAD_LOCK(&module->m_lock);
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module->m_tag_counter = (module->m_tag_counter + 1) % mca_pml.pml_max_tag;
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ret = module->m_tag_counter;
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OPAL_THREAD_UNLOCK(&module->m_lock);
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return ret;
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#else
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module->m_tag_counter = (module->m_tag_counter + 1) % mca_pml.pml_max_tag;
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return module->m_tag_counter;
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#endif
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}
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static inline void
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inmsg_mark_complete(ompi_osc_rdma_module_t *module)
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{
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int32_t count;
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bool need_unlock = false;
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OPAL_THREAD_LOCK(&module->m_lock);
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count = (module->m_num_pending_in -= 1);
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if ((0 != module->m_lock_status) &&
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(opal_list_get_size(&module->m_unlocks_pending) != 0)) {
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need_unlock = true;
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}
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OPAL_THREAD_UNLOCK(&module->m_lock);
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if (0 == count) {
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if (need_unlock) ompi_osc_rdma_passive_unlock_complete(module);
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opal_condition_broadcast(&module->m_cond);
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}
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}
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/**********************************************************************
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*
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* Sending a sendreq to target
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*
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**********************************************************************/
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static void
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ompi_osc_rdma_sendreq_send_long_cb(ompi_osc_rdma_longreq_t *longreq)
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{
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ompi_osc_rdma_sendreq_t *sendreq =
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(ompi_osc_rdma_sendreq_t*) longreq->cbdata;
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int32_t count;
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opal_output_verbose(50, ompi_osc_base_output,
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"%d completed long sendreq to %d",
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sendreq->req_module->m_comm->c_my_rank,
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sendreq->req_target_rank);
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OPAL_THREAD_LOCK(&sendreq->req_module->m_lock);
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count = (sendreq->req_module->m_num_pending_out -= 1);
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OPAL_THREAD_UNLOCK(&sendreq->req_module->m_lock);
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ompi_osc_rdma_longreq_free(longreq);
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ompi_osc_rdma_sendreq_free(sendreq);
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if (0 == count) opal_condition_broadcast(&sendreq->req_module->m_cond);
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}
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static void
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ompi_osc_rdma_sendreq_send_cb(struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t *endpoint,
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struct mca_btl_base_descriptor_t* descriptor,
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int status)
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{
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ompi_osc_rdma_sendreq_t *sendreq =
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(ompi_osc_rdma_sendreq_t*) descriptor->des_cbdata;
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ompi_osc_rdma_send_header_t *header =
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(ompi_osc_rdma_send_header_t*) descriptor->des_src[0].seg_addr.pval;
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opal_list_item_t *item;
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ompi_osc_rdma_module_t *module = sendreq->req_module;
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int32_t count;
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if (OMPI_SUCCESS != status) {
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/* requeue and return */
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/* BWB - FIX ME - figure out where to put this bad boy */
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abort();
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return;
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}
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/* have to look at header, and not the sendreq because in the case
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of get, it's possible that the sendreq has been freed already
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(if the remote side replies before we get our send completion
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callback) and already allocated to another request. We don't
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wait for this completion before exiting a synchronization point
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in the case of get, as we really don't care when it completes -
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only when the data arrives. */
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if (OMPI_OSC_RDMA_HDR_GET != header->hdr_base.hdr_type) {
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#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
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if (header->hdr_base.hdr_flags & OMPI_OSC_RDMA_HDR_FLAG_NBO) {
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OMPI_OSC_RDMA_SEND_HDR_NTOH(*header);
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}
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#endif
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/* do we need to post a send? */
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if (header->hdr_msg_length != 0) {
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/* sendreq is done. Mark it as so and get out of here */
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count = sendreq->req_module->m_num_pending_out -= 1;
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ompi_osc_rdma_sendreq_free(sendreq);
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if (0 == count) opal_condition_broadcast(&sendreq->req_module->m_cond);
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} else {
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ompi_osc_rdma_longreq_t *longreq;
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ompi_osc_rdma_longreq_alloc(&longreq);
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longreq->cbfunc = ompi_osc_rdma_sendreq_send_long_cb;
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longreq->cbdata = sendreq;
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OPAL_OUTPUT_VERBOSE((50, ompi_osc_base_output,
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"%d starting long sendreq to %d (%d)",
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sendreq->req_module->m_comm->c_my_rank,
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sendreq->req_target_rank,
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header->hdr_origin_tag));
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mca_pml.pml_isend(sendreq->req_origin_convertor.pBaseBuf,
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sendreq->req_origin_convertor.count,
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sendreq->req_origin_datatype,
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sendreq->req_target_rank,
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header->hdr_origin_tag,
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MCA_PML_BASE_SEND_STANDARD,
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sendreq->req_module->m_comm,
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&(longreq->request));
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/* put the send request in the waiting list */
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OPAL_THREAD_LOCK(&mca_osc_rdma_component.c_lock);
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opal_list_append(&mca_osc_rdma_component.c_pending_requests,
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&(longreq->super.super));
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OPAL_THREAD_UNLOCK(&mca_osc_rdma_component.c_lock);
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}
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}
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/* release the descriptor and sendreq */
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btl->btl_free(btl, descriptor);
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/* any other sendreqs to restart? */
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while (NULL !=
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(item = opal_list_remove_first(&(module->m_copy_pending_sendreqs)))) {
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ompi_osc_rdma_sendreq_t *req =
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(ompi_osc_rdma_sendreq_t*) item;
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int ret;
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ret = ompi_osc_rdma_sendreq_send(module, req);
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if (OMPI_SUCCESS != ret) {
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opal_output_verbose(5, ompi_osc_base_output,
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"fence: failure in starting sendreq (%d). Will try later.",
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ret);
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opal_list_append(&(module->m_copy_pending_sendreqs), item);
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if (OMPI_ERR_TEMP_OUT_OF_RESOURCE == ret ||
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OMPI_ERR_OUT_OF_RESOURCE == ret) {
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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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/* create the initial fragment, pack header, datatype, and payload (if
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size fits) and send */
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int
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ompi_osc_rdma_sendreq_send(ompi_osc_rdma_module_t *module,
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ompi_osc_rdma_sendreq_t *sendreq)
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{
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int ret = OMPI_SUCCESS;
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mca_bml_base_endpoint_t *endpoint = NULL;
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mca_bml_base_btl_t *bml_btl = NULL;
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mca_btl_base_descriptor_t *descriptor = NULL;
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ompi_osc_rdma_send_header_t *header = NULL;
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size_t written_data = 0;
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size_t needed_len = sizeof(ompi_osc_rdma_send_header_t);
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const void *packed_ddt;
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size_t packed_ddt_len = ompi_ddt_pack_description_length(sendreq->req_target_datatype);
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/* we always need to send the ddt */
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needed_len += packed_ddt_len;
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if (OMPI_OSC_RDMA_GET != sendreq->req_type) {
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needed_len += sendreq->req_origin_bytes_packed;
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}
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/* Get a BTL so we have the eager limit */
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endpoint = (mca_bml_base_endpoint_t*) sendreq->req_target_proc->proc_bml;
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bml_btl = mca_bml_base_btl_array_get_next(&endpoint->btl_eager);
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descriptor = bml_btl->btl_alloc(bml_btl->btl,
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needed_len < bml_btl->btl_eager_limit ? needed_len :
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bml_btl->btl_eager_limit);
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if (NULL == descriptor) {
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ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
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goto cleanup;
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}
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/* verify at least enough space for header */
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if (descriptor->des_src[0].seg_len < sizeof(ompi_osc_rdma_send_header_t)) {
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ret = OMPI_ERR_OUT_OF_RESOURCE;
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goto cleanup;
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}
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/* setup descriptor */
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descriptor->des_cbfunc = ompi_osc_rdma_sendreq_send_cb;
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descriptor->des_cbdata = (void*) sendreq;
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descriptor->des_flags = MCA_BTL_DES_FLAGS_PRIORITY;
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/* pack header */
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header = (ompi_osc_rdma_send_header_t*) descriptor->des_src[0].seg_addr.pval;
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written_data += sizeof(ompi_osc_rdma_send_header_t);
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header->hdr_base.hdr_flags = 0;
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header->hdr_windx = sendreq->req_module->m_comm->c_contextid;
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header->hdr_origin = sendreq->req_module->m_comm->c_my_rank;
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header->hdr_origin_sendreq.pval = (void*) sendreq;
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header->hdr_origin_tag = 0;
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header->hdr_target_disp = sendreq->req_target_disp;
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header->hdr_target_count = sendreq->req_target_count;
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switch (sendreq->req_type) {
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case OMPI_OSC_RDMA_PUT:
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header->hdr_base.hdr_type = OMPI_OSC_RDMA_HDR_PUT;
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#if OMPI_ENABLE_MEM_DEBUG
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header->hdr_target_op = 0;
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#endif
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break;
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case OMPI_OSC_RDMA_ACC:
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header->hdr_base.hdr_type = OMPI_OSC_RDMA_HDR_ACC;
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header->hdr_target_op = sendreq->req_op_id;
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break;
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case OMPI_OSC_RDMA_GET:
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header->hdr_base.hdr_type = OMPI_OSC_RDMA_HDR_GET;
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#if OMPI_ENABLE_MEM_DEBUG
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header->hdr_target_op = 0;
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#endif
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break;
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}
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/* Set datatype id and / or pack datatype */
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ret = ompi_ddt_get_pack_description(sendreq->req_target_datatype, &packed_ddt);
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if (OMPI_SUCCESS != ret) goto cleanup;
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memcpy((unsigned char*) descriptor->des_src[0].seg_addr.pval + written_data,
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packed_ddt, packed_ddt_len);
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written_data += packed_ddt_len;
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if (OMPI_OSC_RDMA_GET != sendreq->req_type) {
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/* if sending data and it fits, pack payload */
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if (descriptor->des_src[0].seg_len >=
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written_data + sendreq->req_origin_bytes_packed) {
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struct iovec iov;
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uint32_t iov_count = 1;
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size_t max_data = sendreq->req_origin_bytes_packed;
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iov.iov_len = max_data;
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iov.iov_base = (IOVBASE_TYPE*)((unsigned char*) descriptor->des_src[0].seg_addr.pval + written_data);
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ret = ompi_convertor_pack(&sendreq->req_origin_convertor, &iov, &iov_count,
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&max_data );
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if (ret < 0) {
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ret = OMPI_ERR_FATAL;
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goto cleanup;
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}
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assert(max_data == sendreq->req_origin_bytes_packed);
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written_data += max_data;
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descriptor->des_src[0].seg_len = written_data;
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header->hdr_msg_length = sendreq->req_origin_bytes_packed;
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} else {
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header->hdr_msg_length = 0;
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header->hdr_origin_tag = create_send_tag(module);
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}
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} else {
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descriptor->des_src[0].seg_len = written_data;
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header->hdr_msg_length = 0;
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}
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#ifdef WORDS_BIGENDIAN
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header->hdr_base.hdr_flags |= OMPI_OSC_RDMA_HDR_FLAG_NBO;
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#elif OMPI_ENABLE_HETEROGENEOUS_SUPPORT
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if (sendreq->req_target_proc->proc_arch & OMPI_ARCH_ISBIGENDIAN) {
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header->hdr_base.hdr_flags |= OMPI_OSC_RDMA_HDR_FLAG_NBO;
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OMPI_OSC_RDMA_SEND_HDR_HTON(*header);
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}
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#endif
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/* send fragment */
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opal_output_verbose(50, ompi_osc_base_output,
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"%d sending sendreq to %d",
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sendreq->req_module->m_comm->c_my_rank,
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sendreq->req_target_rank);
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ret = mca_bml_base_send(bml_btl, descriptor, MCA_BTL_TAG_OSC_RDMA);
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goto done;
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cleanup:
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if (descriptor != NULL) {
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mca_bml_base_free(bml_btl, descriptor);
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}
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done:
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return ret;
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}
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/**********************************************************************
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*
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* Sending a replyreq back to origin
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*
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**********************************************************************/
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static void
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ompi_osc_rdma_replyreq_send_long_cb(ompi_osc_rdma_longreq_t *longreq)
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{
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ompi_osc_rdma_replyreq_t *replyreq =
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(ompi_osc_rdma_replyreq_t*) longreq->cbdata;
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inmsg_mark_complete(replyreq->rep_module);
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ompi_osc_rdma_longreq_free(longreq);
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ompi_osc_rdma_replyreq_free(replyreq);
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}
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static void
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ompi_osc_rdma_replyreq_send_cb(struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t *endpoint,
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struct mca_btl_base_descriptor_t* descriptor,
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int status)
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{
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ompi_osc_rdma_replyreq_t *replyreq =
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(ompi_osc_rdma_replyreq_t*) descriptor->des_cbdata;
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ompi_osc_rdma_reply_header_t *header =
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(ompi_osc_rdma_reply_header_t*) descriptor->des_src[0].seg_addr.pval;
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if (OMPI_SUCCESS != status) {
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/* requeue and return */
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/* BWB - FIX ME - figure out where to put this bad boy */
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abort();
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return;
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}
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#if !defined(WORDS_BIGENDIAN) && OMPI_ENABLE_HETEROGENEOUS_SUPPORT
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if (header->hdr_base.hdr_flags & OMPI_OSC_RDMA_HDR_FLAG_NBO) {
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OMPI_OSC_RDMA_REPLY_HDR_NTOH(*header);
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}
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#endif
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/* do we need to post a send? */
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if (header->hdr_msg_length != 0) {
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/* sendreq is done. Mark it as so and get out of here */
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inmsg_mark_complete(replyreq->rep_module);
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ompi_osc_rdma_replyreq_free(replyreq);
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} else {
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ompi_osc_rdma_longreq_t *longreq;
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ompi_osc_rdma_longreq_alloc(&longreq);
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longreq->cbfunc = ompi_osc_rdma_replyreq_send_long_cb;
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longreq->cbdata = replyreq;
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mca_pml.pml_isend(replyreq->rep_target_convertor.pBaseBuf,
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replyreq->rep_target_convertor.count,
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replyreq->rep_target_datatype,
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replyreq->rep_origin_rank,
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header->hdr_target_tag,
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MCA_PML_BASE_SEND_STANDARD,
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replyreq->rep_module->m_comm,
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&(longreq->request));
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/* put the send request in the waiting list */
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OPAL_THREAD_LOCK(&mca_osc_rdma_component.c_lock);
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opal_list_append(&mca_osc_rdma_component.c_pending_requests,
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&(longreq->super.super));
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OPAL_THREAD_UNLOCK(&mca_osc_rdma_component.c_lock);
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}
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/* release the descriptor and replyreq */
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btl->btl_free(btl, descriptor);
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}
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int
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ompi_osc_rdma_replyreq_send(ompi_osc_rdma_module_t *module,
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ompi_osc_rdma_replyreq_t *replyreq)
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{
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int ret = OMPI_SUCCESS;
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mca_bml_base_endpoint_t *endpoint = NULL;
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mca_bml_base_btl_t *bml_btl = NULL;
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mca_btl_base_descriptor_t *descriptor = NULL;
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ompi_osc_rdma_reply_header_t *header = NULL;
|
|
size_t written_data = 0;
|
|
|
|
/* Get a BTL and a fragment to go with it */
|
|
endpoint = (mca_bml_base_endpoint_t*) replyreq->rep_origin_proc->proc_bml;
|
|
bml_btl = mca_bml_base_btl_array_get_next(&endpoint->btl_eager);
|
|
descriptor = bml_btl->btl_alloc(bml_btl->btl,
|
|
bml_btl->btl_eager_limit);
|
|
if (NULL == descriptor) {
|
|
ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
goto cleanup;
|
|
}
|
|
|
|
/* verify at least enough space for header */
|
|
if (descriptor->des_src[0].seg_len < sizeof(ompi_osc_rdma_reply_header_t)) {
|
|
ret = OMPI_ERR_OUT_OF_RESOURCE;
|
|
goto cleanup;
|
|
}
|
|
|
|
/* setup descriptor */
|
|
descriptor->des_cbfunc = ompi_osc_rdma_replyreq_send_cb;
|
|
descriptor->des_cbdata = (void*) replyreq;
|
|
descriptor->des_flags = MCA_BTL_DES_FLAGS_PRIORITY;
|
|
|
|
/* pack header */
|
|
header = (ompi_osc_rdma_reply_header_t*) descriptor->des_src[0].seg_addr.pval;
|
|
written_data += sizeof(ompi_osc_rdma_reply_header_t);
|
|
header->hdr_base.hdr_type = OMPI_OSC_RDMA_HDR_REPLY;
|
|
header->hdr_base.hdr_flags = 0;
|
|
header->hdr_origin_sendreq = replyreq->rep_origin_sendreq;
|
|
header->hdr_target_tag = 0;
|
|
|
|
/* if sending data fits, pack payload */
|
|
if (descriptor->des_src[0].seg_len >=
|
|
written_data + replyreq->rep_target_bytes_packed) {
|
|
struct iovec iov;
|
|
uint32_t iov_count = 1;
|
|
size_t max_data = replyreq->rep_target_bytes_packed;
|
|
|
|
iov.iov_len = max_data;
|
|
iov.iov_base = (IOVBASE_TYPE*)((unsigned char*) descriptor->des_src[0].seg_addr.pval + written_data);
|
|
|
|
ret = ompi_convertor_pack(&replyreq->rep_target_convertor, &iov, &iov_count,
|
|
&max_data );
|
|
if (ret < 0) {
|
|
ret = OMPI_ERR_FATAL;
|
|
goto cleanup;
|
|
}
|
|
|
|
assert(max_data == replyreq->rep_target_bytes_packed);
|
|
written_data += max_data;
|
|
descriptor->des_src[0].seg_len = written_data;
|
|
|
|
header->hdr_msg_length = replyreq->rep_target_bytes_packed;
|
|
} else {
|
|
header->hdr_msg_length = 0;
|
|
header->hdr_target_tag = create_send_tag(module);
|
|
}
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
|
header->hdr_base.hdr_flags |= OMPI_OSC_RDMA_HDR_FLAG_NBO;
|
|
#elif OMPI_ENABLE_HETEROGENEOUS_SUPPORT
|
|
if (replyreq->rep_origin_proc->proc_arch & OMPI_ARCH_ISBIGENDIAN) {
|
|
header->hdr_base.hdr_flags |= OMPI_OSC_RDMA_HDR_FLAG_NBO;
|
|
OMPI_OSC_RDMA_REPLY_HDR_HTON(*header);
|
|
}
|
|
#endif
|
|
|
|
/* send fragment */
|
|
ret = mca_bml_base_send(bml_btl, descriptor, MCA_BTL_TAG_OSC_RDMA);
|
|
goto done;
|
|
|
|
cleanup:
|
|
if (descriptor != NULL) {
|
|
mca_bml_base_free(bml_btl, descriptor);
|
|
}
|
|
|
|
done:
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
*
|
|
* Receive a put on the target side
|
|
*
|
|
**********************************************************************/
|
|
static void
|
|
ompi_osc_rdma_sendreq_recv_put_long_cb(ompi_osc_rdma_longreq_t *longreq)
|
|
{
|
|
OBJ_RELEASE(longreq->req_datatype);
|
|
ompi_osc_rdma_longreq_free(longreq);
|
|
|
|
inmsg_mark_complete(longreq->req_module);
|
|
}
|
|
|
|
|
|
int
|
|
ompi_osc_rdma_sendreq_recv_put(ompi_osc_rdma_module_t *module,
|
|
ompi_osc_rdma_send_header_t *header,
|
|
void *inbuf)
|
|
{
|
|
int ret = OMPI_SUCCESS;
|
|
void *target = (unsigned char*) module->m_win->w_baseptr +
|
|
(header->hdr_target_disp * module->m_win->w_disp_unit);
|
|
ompi_proc_t *proc = ompi_comm_peer_lookup( module->m_comm, header->hdr_origin );
|
|
struct ompi_datatype_t *datatype =
|
|
ompi_osc_rdma_datatype_create(proc, &inbuf);
|
|
|
|
if (header->hdr_msg_length > 0) {
|
|
ompi_convertor_t convertor;
|
|
struct iovec iov;
|
|
uint32_t iov_count = 1;
|
|
size_t max_data;
|
|
ompi_proc_t *proc;
|
|
|
|
/* create convertor */
|
|
OBJ_CONSTRUCT(&convertor, ompi_convertor_t);
|
|
|
|
/* initialize convertor */
|
|
proc = ompi_comm_peer_lookup(module->m_comm, header->hdr_origin);
|
|
ompi_convertor_copy_and_prepare_for_recv(proc->proc_convertor,
|
|
datatype,
|
|
header->hdr_target_count,
|
|
target,
|
|
0,
|
|
&convertor);
|
|
iov.iov_len = header->hdr_msg_length;
|
|
iov.iov_base = (IOVBASE_TYPE*)inbuf;
|
|
max_data = iov.iov_len;
|
|
ompi_convertor_unpack(&convertor,
|
|
&iov,
|
|
&iov_count,
|
|
&max_data );
|
|
OBJ_DESTRUCT(&convertor);
|
|
OBJ_RELEASE(datatype);
|
|
inmsg_mark_complete(module);
|
|
} else {
|
|
ompi_osc_rdma_longreq_t *longreq;
|
|
ompi_osc_rdma_longreq_alloc(&longreq);
|
|
|
|
longreq->cbfunc = ompi_osc_rdma_sendreq_recv_put_long_cb;
|
|
longreq->cbdata = NULL;
|
|
longreq->req_datatype = datatype;
|
|
longreq->req_module = module;
|
|
|
|
ret = mca_pml.pml_irecv(target,
|
|
header->hdr_target_count,
|
|
datatype,
|
|
header->hdr_origin,
|
|
header->hdr_origin_tag,
|
|
module->m_comm,
|
|
&(longreq->request));
|
|
|
|
/* put the send request in the waiting list */
|
|
OPAL_THREAD_LOCK(&mca_osc_rdma_component.c_lock);
|
|
opal_list_append(&mca_osc_rdma_component.c_pending_requests,
|
|
&(longreq->super.super));
|
|
OPAL_THREAD_UNLOCK(&mca_osc_rdma_component.c_lock);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
|
|
/**********************************************************************
|
|
*
|
|
* Receive an accumulate on the target side
|
|
*
|
|
**********************************************************************/
|
|
static void
|
|
ompi_osc_rdma_sendreq_recv_accum_long_cb(ompi_osc_rdma_longreq_t *longreq)
|
|
{
|
|
ompi_osc_rdma_send_header_t *header =
|
|
(ompi_osc_rdma_send_header_t*) longreq->cbdata;
|
|
void *payload = (void*) (header + 1);
|
|
int ret;
|
|
|
|
/* lock the window for accumulates */
|
|
OPAL_THREAD_LOCK(&longreq->req_module->m_acc_lock);
|
|
|
|
/* copy the data from the temporary buffer into the user window */
|
|
ret = ompi_osc_rdma_process_op(longreq->req_module,
|
|
header,
|
|
longreq->req_datatype,
|
|
longreq->req_op,
|
|
payload,
|
|
header->hdr_msg_length);
|
|
|
|
/* unlock the window for accumulates */
|
|
OPAL_THREAD_UNLOCK(&longreq->req_module->m_acc_lock);
|
|
|
|
opal_output_verbose(50, ompi_osc_base_output,
|
|
"%d finished receiving long accum message from %d",
|
|
longreq->req_module->m_comm->c_my_rank,
|
|
header->hdr_origin);
|
|
|
|
/* free the temp buffer */
|
|
free(longreq->cbdata);
|
|
|
|
/* Release datatype & op */
|
|
OBJ_RELEASE(longreq->req_datatype);
|
|
OBJ_RELEASE(longreq->req_op);
|
|
|
|
inmsg_mark_complete(longreq->req_module);
|
|
|
|
ompi_osc_rdma_longreq_free(longreq);
|
|
}
|
|
|
|
|
|
int
|
|
ompi_osc_rdma_sendreq_recv_accum(ompi_osc_rdma_module_t *module,
|
|
ompi_osc_rdma_send_header_t *header,
|
|
void *payload)
|
|
{
|
|
int ret = OMPI_SUCCESS;
|
|
struct ompi_op_t *op = ompi_osc_rdma_op_create(header->hdr_target_op);
|
|
ompi_proc_t *proc = ompi_comm_peer_lookup( module->m_comm, header->hdr_origin );
|
|
struct ompi_datatype_t *datatype =
|
|
ompi_osc_rdma_datatype_create(proc, &payload);
|
|
|
|
if (header->hdr_msg_length > 0) {
|
|
/* lock the window for accumulates */
|
|
OPAL_THREAD_LOCK(&module->m_acc_lock);
|
|
|
|
/* copy the data from the temporary buffer into the user window */
|
|
ret = ompi_osc_rdma_process_op(module, header, datatype, op, payload,
|
|
header->hdr_msg_length);
|
|
|
|
/* unlock the window for accumulates */
|
|
OPAL_THREAD_UNLOCK(&module->m_acc_lock);
|
|
|
|
/* Release datatype & op */
|
|
OBJ_RELEASE(datatype);
|
|
OBJ_RELEASE(op);
|
|
|
|
inmsg_mark_complete(module);
|
|
|
|
opal_output_verbose(50, ompi_osc_base_output,
|
|
"%d received accum message from %d",
|
|
module->m_comm->c_my_rank,
|
|
header->hdr_origin);
|
|
} else {
|
|
ompi_osc_rdma_longreq_t *longreq;
|
|
ptrdiff_t lb, extent, true_lb, true_extent;
|
|
size_t buflen;
|
|
|
|
/* figure out how big a buffer we need */
|
|
ompi_ddt_get_extent(datatype, &lb, &extent);
|
|
ompi_ddt_get_true_extent(datatype, &true_lb, &true_extent);
|
|
buflen = true_extent + (header->hdr_target_count - 1) * extent;
|
|
|
|
/* get a longreq and fill it in */
|
|
ompi_osc_rdma_longreq_alloc(&longreq);
|
|
|
|
longreq->cbfunc = ompi_osc_rdma_sendreq_recv_accum_long_cb;
|
|
longreq->req_datatype = datatype;
|
|
longreq->req_op = op;
|
|
longreq->req_module = module;
|
|
|
|
/* allocate a buffer to receive into ... */
|
|
longreq->cbdata = malloc(buflen + sizeof(ompi_osc_rdma_send_header_t));
|
|
|
|
if (NULL == longreq->cbdata) return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
/* fill in tmp header */
|
|
memcpy(longreq->cbdata, header,
|
|
sizeof(ompi_osc_rdma_send_header_t));
|
|
((ompi_osc_rdma_send_header_t*) longreq->cbdata)->hdr_msg_length = buflen;
|
|
|
|
ret = mca_pml.pml_irecv(((char*) longreq->cbdata) + sizeof(ompi_osc_rdma_send_header_t),
|
|
header->hdr_target_count,
|
|
datatype,
|
|
header->hdr_origin,
|
|
header->hdr_origin_tag,
|
|
module->m_comm,
|
|
&(longreq->request));
|
|
|
|
opal_output_verbose(50, ompi_osc_base_output,
|
|
"%d started long recv accum message from %d (%d)",
|
|
module->m_comm->c_my_rank,
|
|
header->hdr_origin,
|
|
header->hdr_origin_tag);
|
|
|
|
/* put the send request in the waiting list */
|
|
OPAL_THREAD_LOCK(&mca_osc_rdma_component.c_lock);
|
|
opal_list_append(&mca_osc_rdma_component.c_pending_requests,
|
|
&(longreq->super.super));
|
|
OPAL_THREAD_UNLOCK(&mca_osc_rdma_component.c_lock);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
*
|
|
* Recveive a get on the origin side
|
|
*
|
|
**********************************************************************/
|
|
static void
|
|
ompi_osc_rdma_replyreq_recv_long_cb(ompi_osc_rdma_longreq_t *longreq)
|
|
{
|
|
ompi_osc_rdma_sendreq_t *sendreq =
|
|
(ompi_osc_rdma_sendreq_t*) longreq->cbdata;
|
|
int32_t count;
|
|
|
|
OPAL_THREAD_LOCK(&sendreq->req_module->m_lock);
|
|
count = (sendreq->req_module->m_num_pending_out -= 1);
|
|
OPAL_THREAD_UNLOCK(&sendreq->req_module->m_lock);
|
|
|
|
ompi_osc_rdma_longreq_free(longreq);
|
|
ompi_osc_rdma_sendreq_free(sendreq);
|
|
|
|
if (0 == count) opal_condition_broadcast(&sendreq->req_module->m_cond);
|
|
}
|
|
|
|
|
|
int
|
|
ompi_osc_rdma_replyreq_recv(ompi_osc_rdma_module_t *module,
|
|
ompi_osc_rdma_sendreq_t *sendreq,
|
|
ompi_osc_rdma_reply_header_t *header,
|
|
void *payload)
|
|
{
|
|
int ret = OMPI_SUCCESS;
|
|
|
|
/* receive into user buffer */
|
|
if (header->hdr_msg_length > 0) {
|
|
/* short message. woo! */
|
|
|
|
struct iovec iov;
|
|
uint32_t iov_count = 1;
|
|
size_t max_data;
|
|
int32_t count;
|
|
|
|
iov.iov_len = header->hdr_msg_length;
|
|
iov.iov_base = (IOVBASE_TYPE*)payload;
|
|
max_data = iov.iov_len;
|
|
ompi_convertor_unpack(&sendreq->req_origin_convertor,
|
|
&iov,
|
|
&iov_count,
|
|
&max_data );
|
|
|
|
count = sendreq->req_module->m_num_pending_out -= 1;
|
|
ompi_osc_rdma_sendreq_free(sendreq);
|
|
if (0 == count) opal_condition_broadcast(&sendreq->req_module->m_cond);
|
|
} else {
|
|
ompi_osc_rdma_longreq_t *longreq;
|
|
ompi_osc_rdma_longreq_alloc(&longreq);
|
|
|
|
longreq->cbfunc = ompi_osc_rdma_replyreq_recv_long_cb;
|
|
longreq->cbdata = sendreq;
|
|
longreq->req_module = module;
|
|
|
|
/* BWB - FIX ME - George is going to kill me for this */
|
|
ret = mca_pml.pml_irecv(sendreq->req_origin_convertor.pBaseBuf,
|
|
sendreq->req_origin_convertor.count,
|
|
sendreq->req_origin_datatype,
|
|
sendreq->req_target_rank,
|
|
header->hdr_target_tag,
|
|
module->m_comm,
|
|
&(longreq->request));
|
|
|
|
/* put the send request in the waiting list */
|
|
OPAL_THREAD_LOCK(&mca_osc_rdma_component.c_lock);
|
|
opal_list_append(&mca_osc_rdma_component.c_pending_requests,
|
|
&(longreq->super.super));
|
|
OPAL_THREAD_UNLOCK(&mca_osc_rdma_component.c_lock);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
*
|
|
* Control message communication
|
|
*
|
|
**********************************************************************/
|
|
static void
|
|
ompi_osc_rdma_control_send_cb(struct mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t *endpoint,
|
|
struct mca_btl_base_descriptor_t* descriptor,
|
|
int status)
|
|
{
|
|
/* release the descriptor and sendreq */
|
|
btl->btl_free(btl, descriptor);
|
|
}
|
|
|
|
|
|
int
|
|
ompi_osc_rdma_control_send(ompi_osc_rdma_module_t *module,
|
|
ompi_proc_t *proc,
|
|
uint8_t type, int32_t value0, int32_t value1)
|
|
{
|
|
int ret = OMPI_SUCCESS;
|
|
mca_bml_base_endpoint_t *endpoint = NULL;
|
|
mca_bml_base_btl_t *bml_btl = NULL;
|
|
mca_btl_base_descriptor_t *descriptor = NULL;
|
|
ompi_osc_rdma_control_header_t *header = NULL;
|
|
|
|
/* Get a BTL and a fragment to go with it */
|
|
endpoint = (mca_bml_base_endpoint_t*) proc->proc_bml;
|
|
bml_btl = mca_bml_base_btl_array_get_next(&endpoint->btl_eager);
|
|
descriptor = bml_btl->btl_alloc(bml_btl->btl,
|
|
sizeof(ompi_osc_rdma_control_header_t));
|
|
if (NULL == descriptor) {
|
|
ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
goto cleanup;
|
|
}
|
|
|
|
/* verify at least enough space for header */
|
|
if (descriptor->des_src[0].seg_len < sizeof(ompi_osc_rdma_control_header_t)) {
|
|
ret = OMPI_ERR_OUT_OF_RESOURCE;
|
|
goto cleanup;
|
|
}
|
|
|
|
/* setup descriptor */
|
|
descriptor->des_cbfunc = ompi_osc_rdma_control_send_cb;
|
|
descriptor->des_cbdata = NULL;
|
|
descriptor->des_flags = MCA_BTL_DES_FLAGS_PRIORITY;
|
|
descriptor->des_src[0].seg_len = sizeof(ompi_osc_rdma_control_header_t);
|
|
|
|
/* pack header */
|
|
header = (ompi_osc_rdma_control_header_t*) descriptor->des_src[0].seg_addr.pval;
|
|
header->hdr_base.hdr_type = type;
|
|
header->hdr_value[0] = value0;
|
|
header->hdr_value[1] = value1;
|
|
header->hdr_windx = module->m_comm->c_contextid;
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
|
header->hdr_base.hdr_flags |= OMPI_OSC_RDMA_HDR_FLAG_NBO;
|
|
#elif OMPI_ENABLE_HETEROGENEOUS_SUPPORT
|
|
if (proc->proc_arch & OMPI_ARCH_ISBIGENDIAN) {
|
|
header->hdr_base.hdr_flags |= OMPI_OSC_RDMA_HDR_FLAG_NBO;
|
|
OMPI_OSC_RDMA_CONTROL_HDR_HTON(*header);
|
|
}
|
|
#endif
|
|
|
|
/* send fragment */
|
|
ret = mca_bml_base_send(bml_btl, descriptor, MCA_BTL_TAG_OSC_RDMA);
|
|
goto done;
|
|
|
|
cleanup:
|
|
if (descriptor != NULL) {
|
|
mca_bml_base_free(bml_btl, descriptor);
|
|
}
|
|
|
|
done:
|
|
return ret;
|
|
}
|