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MpiAdapter.cc
1// -*- tab-width: 2; indent-tabs-mode: nil; coding: utf-8-with-signature -*-
2//-----------------------------------------------------------------------------
3// Copyright 2000-2025 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
4// See the top-level COPYRIGHT file for details.
5// SPDX-License-Identifier: Apache-2.0
6//-----------------------------------------------------------------------------
7/*---------------------------------------------------------------------------*/
8/* MpiAdapter.cc (C) 2000-2025 */
9/* */
10/* Gestionnaire de parallélisme utilisant MPI. */
11/*---------------------------------------------------------------------------*/
12/*---------------------------------------------------------------------------*/
13
14#include "arccore/message_passing_mpi/internal/MpiAdapter.h"
15
16#include "arccore/trace/ITraceMng.h"
17
18#include "arccore/collections/Array.h"
19
20#include "arccore/message_passing/Request.h"
21#include "arccore/message_passing/IStat.h"
22#include "arccore/message_passing/internal/SubRequestCompletionInfo.h"
23
24#include "arccore/base/IStackTraceService.h"
25#include "arccore/base/TimeoutException.h"
26#include "arccore/base/String.h"
27#include "arccore/base/NotImplementedException.h"
28#include "arccore/base/PlatformUtils.h"
29#include "arccore/base/FatalErrorException.h"
30#include "arccore/base/TraceInfo.h"
31
32#include "arccore/message_passing_mpi/StandaloneMpiMessagePassingMng.h"
33#include "arccore/message_passing_mpi/internal/MpiLock.h"
34#include "arccore/message_passing_mpi/internal/NoMpiProfiling.h"
35#include "arccore/message_passing_mpi/internal/MpiRequest.h"
36#include "arccore/message_passing_mpi/internal/MpiMachineMemoryWindowBaseInternalCreator.h"
37
38#include <cstdint>
39
40/*---------------------------------------------------------------------------*/
41/*---------------------------------------------------------------------------*/
42
43namespace Arcane::MessagePassing::Mpi
44{
45
46/*---------------------------------------------------------------------------*/
47/*---------------------------------------------------------------------------*/
48
49class MpiAdapter::RequestSet
50: public TraceAccessor
51{
52 public:
53 struct RequestInfo
54 {
55 TraceInfo m_trace;
56 String m_stack_trace;
57 };
58 public:
59 typedef std::map<MPI_Request,RequestInfo>::iterator Iterator;
60 public:
61
62 explicit RequestSet(ITraceMng* tm)
63 : TraceAccessor(tm)
64 {
65 m_trace_mng_ref = makeRef(tm);
66 if (arccoreIsCheck()){
67 m_no_check_request = false;
68 m_request_error_is_fatal = true;
69 }
70 if (Platform::getEnvironmentVariable("ARCCORE_NOREPORT_ERROR_MPIREQUEST")=="TRUE")
71 m_is_report_error_in_request = false;
72 if (Platform::getEnvironmentVariable("ARCCORE_MPIREQUEST_STACKTRACE")=="TRUE")
73 m_use_trace_full_stack = true;
74 if (Platform::getEnvironmentVariable("ARCCORE_TRACE_MPIREQUEST")=="TRUE")
75 m_trace_mpirequest = true;
76 }
77 public:
78 void addRequest(MPI_Request request)
79 {
80 if (m_no_check_request)
81 return;
82 if (m_trace_mpirequest)
83 info() << "MpiAdapter: AddRequest r=" << request;
84 _addRequest(request,TraceInfo());
85 }
86 void addRequest(MPI_Request request,const TraceInfo& ti)
87 {
88 if (m_no_check_request)
89 return;
90 if (m_trace_mpirequest)
91 info() << "MpiAdapter: AddRequest r=" << request;
92 _addRequest(request,ti);
93 }
94 void removeRequest(MPI_Request request)
95 {
96 if (m_no_check_request)
97 return;
98 if (m_trace_mpirequest)
99 info() << "MpiAdapter: RemoveRequest r=" << request;
100 _removeRequest(request);
101 }
102 void removeRequest(Iterator request_iter)
103 {
104 if (m_no_check_request)
105 return;
106 if (request_iter==m_allocated_requests.end()){
107 if (m_trace_mpirequest)
108 info() << "MpiAdapter: RemoveRequestIter null iterator";
109 return;
110 }
111 if (m_trace_mpirequest)
112 info() << "MpiAdapter: RemoveRequestIter r=" << request_iter->first;
113 m_allocated_requests.erase(request_iter);
114 }
115 //! Vérifie que la requête est dans la liste
116 Iterator findRequest(MPI_Request request)
117 {
118 if (m_no_check_request)
119 return m_allocated_requests.end();
120
121 if (_isEmptyRequest(request))
122 return m_allocated_requests.end();
123 auto ireq = m_allocated_requests.find(request);
124 if (ireq==m_allocated_requests.end()){
125 if (m_is_report_error_in_request || m_request_error_is_fatal){
126 error() << "MpiAdapter::testRequest() request not referenced "
127 << " id=" << request;
128 _checkFatalInRequest();
129 }
130 }
131 return ireq;
132 }
133 private:
134 /*!
135 * \warning Cette fonction doit etre appelee avec le verrou mpi_lock actif.
136 */
137 void _addRequest(MPI_Request request,const TraceInfo& trace_info)
138 {
139 if (request==MPI_REQUEST_NULL){
140 if (m_is_report_error_in_request || m_request_error_is_fatal){
141 error() << "MpiAdapter::_addRequest() trying to add null request";
142 _checkFatalInRequest();
143 }
144 return;
145 }
146 if (_isEmptyRequest(request))
147 return;
148 ++m_total_added_request;
149 //info() << "MPI_ADAPTER:ADD REQUEST " << request;
150 auto i = m_allocated_requests.find(request);
151 if (i!=m_allocated_requests.end()){
152 if (m_is_report_error_in_request || m_request_error_is_fatal){
153 error() << "MpiAdapter::_addRequest() request already referenced "
154 << " id=" << request;
155 _checkFatalInRequest();
156 }
157 return;
158 }
159 RequestInfo rinfo;
160 rinfo.m_trace = trace_info;
161 if (m_use_trace_full_stack)
162 rinfo.m_stack_trace = Platform::getStackTrace();
163 m_allocated_requests.insert(std::make_pair(request,rinfo));
164 }
165
166 /*!
167 * \warning Cette fonction doit être appelé avec le verrou mpi_lock actif.
168 */
169 void _removeRequest(MPI_Request request)
170 {
171 //info() << "MPI_ADAPTER:REMOVE REQUEST " << request;
172 if (request==MPI_REQUEST_NULL){
173 if (m_is_report_error_in_request || m_request_error_is_fatal){
174 error() << "MpiAdapter::_removeRequest() null request (" << MPI_REQUEST_NULL << ")";
175 _checkFatalInRequest();
176 }
177 return;
178 }
179 if (_isEmptyRequest(request))
180 return;
181 auto i = m_allocated_requests.find(request);
182 if (i==m_allocated_requests.end()){
183 if (m_is_report_error_in_request || m_request_error_is_fatal){
184 error() << "MpiAdapter::_removeRequest() request not referenced "
185 << " id=" << request;
186 _checkFatalInRequest();
187 }
188 }
189 else
190 m_allocated_requests.erase(i);
191 }
192 public:
193 void _checkFatalInRequest()
194 {
195 if (m_request_error_is_fatal)
196 ARCCORE_FATAL("Error in requests management");
197 }
198 Int64 nbRequest() const { return m_allocated_requests.size(); }
199 Int64 totalAddedRequest() const { return m_total_added_request; }
200 void printRequests() const
201 {
202 info() << "PRINT REQUESTS\n";
203 for( auto& x : m_allocated_requests ){
204 info() << "Request id=" << x.first << " trace=" << x.second.m_trace
205 << " stack=" << x.second.m_stack_trace;
206 }
207 }
208 void setEmptyRequests(MPI_Request r1,MPI_Request r2)
209 {
210 m_empty_request1 = r1;
211 m_empty_request2 = r2;
212 }
213 public:
214 bool m_request_error_is_fatal = false;
215 bool m_is_report_error_in_request = true;
216 bool m_trace_mpirequest = false;
217 //! Vrai si on vérifie pas les requêtes
218 bool m_no_check_request = true;
219 private:
220 std::map<MPI_Request,RequestInfo> m_allocated_requests;
221 bool m_use_trace_full_stack = false;
222 MPI_Request m_empty_request1 = MPI_REQUEST_NULL;
223 MPI_Request m_empty_request2 = MPI_REQUEST_NULL;
224 Int64 m_total_added_request = 0;
225 Ref<ITraceMng> m_trace_mng_ref;
226 private:
227 bool _isEmptyRequest(MPI_Request r) const
228 {
229 return (r==m_empty_request1 || r==m_empty_request2);
230 }
231};
232
233#define ARCCORE_ADD_REQUEST(request)\
234 m_request_set->addRequest(request,A_FUNCINFO);
235
236/*---------------------------------------------------------------------------*/
237/*---------------------------------------------------------------------------*/
238
239namespace
240{
241int _checkSize(Int64 i64_size)
242{
243 if (i64_size>INT32_MAX)
244 ARCCORE_FATAL("Can not convert '{0}' to type integer",i64_size);
245 return (int)i64_size;
246}
247}
248
249/*---------------------------------------------------------------------------*/
250/*---------------------------------------------------------------------------*/
251
252MpiAdapter::
253MpiAdapter(ITraceMng* trace,IStat* stat,MPI_Comm comm,
254 MpiLock* mpi_lock, IMpiProfiling* mpi_op)
255: TraceAccessor(trace)
256, m_stat(stat)
257, m_mpi_lock(mpi_lock)
258, m_mpi_prof(mpi_op)
259, m_communicator(comm)
260, m_comm_rank(0)
261, m_comm_size(0)
262, m_machine_communicator(MPI_COMM_NULL)
263, m_empty_request1(MPI_REQUEST_NULL)
264, m_empty_request2(MPI_REQUEST_NULL)
265, m_window_creator(nullptr)
266{
267 m_request_set = new RequestSet(trace);
268
269 if (Platform::getEnvironmentVariable("ARCCORE_TRACE_MPI")=="TRUE")
270 m_is_trace = true;
271 {
272 String s = Platform::getEnvironmentVariable("ARCCORE_ALLOW_NULL_RANK_FOR_MPI_ANY_SOURCE");
273 if (s == "1" || s == "TRUE")
274 m_is_allow_null_rank_for_any_source = true;
275 if (s == "0" || s == "FALSE")
276 m_is_allow_null_rank_for_any_source = false;
277 }
278
279 ::MPI_Comm_rank(m_communicator,&m_comm_rank);
280 ::MPI_Comm_size(m_communicator,&m_comm_size);
281
282 // Par defaut, on ne fait pas de profiling MPI, on utilisera la methode set idoine pour changer
283 if (!m_mpi_prof)
284 m_mpi_prof = new NoMpiProfiling();
285
286 /*!
287 * Ce type de requête est utilisé par openmpi à partir de
288 * la version 1.8 (il faut voir pour la 1.6, sachant que la 1.4 et 1.5
289 * ne l'ont pas). Cette requête fonctionne un peu comme MPI_REQUEST_NULL
290 * et il est possible qu'elle soit retournée plusieurs fois. Il ne faut
291 * donc pas mettre cette requête dans m_allocated_requests.
292 * On ne peut pas accéder directement à l'adresse de cette requête vide
293 * mais l'implémentation 1.8 de openmpi retourne cette requête lorsqu'on
294 * appelle un IRecv avec une source MPI_PROC_NULL. On récupère donc la valeur
295 * comme cela.
296 */
297 MPI_Irecv(m_recv_buffer_for_empty_request, 1, MPI_CHAR, MPI_PROC_NULL,
298 50505, m_communicator, &m_empty_request1);
299
300 /*
301 * A partir de la version 4 de openmpi, il semble aussi que les send avec
302 * de petits buffers génèrent toujours la même requête. Il faut donc aussi
303 * la supprimer des requêtes à tester. On poste aussi le MPI_Recv correspondant
304 * pour éviter que le MPI_ISend puisse involontairement être utilisé dans un
305 * MPI_Recv de l'utilisateur (via par exemple un MPI_Recv(MPI_ANY_TAG).
306 */
307 m_send_buffer_for_empty_request2[0] = 0;
308 MPI_Isend(m_send_buffer_for_empty_request2, 1, MPI_CHAR, m_comm_rank,
309 50505, m_communicator, &m_empty_request2);
310
311 MPI_Recv(m_recv_buffer_for_empty_request2, 1, MPI_CHAR, m_comm_rank,
312 50505, m_communicator, MPI_STATUS_IGNORE);
313
314 m_request_set->setEmptyRequests(m_empty_request1,m_empty_request2);
315}
316
317/*---------------------------------------------------------------------------*/
318/*---------------------------------------------------------------------------*/
319
320MpiAdapter::
321~MpiAdapter()
322{
323 if (m_empty_request1 != MPI_REQUEST_NULL)
324 MPI_Request_free(&m_empty_request1);
325 if (m_empty_request2 != MPI_REQUEST_NULL)
326 MPI_Request_free(&m_empty_request2);
327
328 delete m_request_set;
329 delete m_mpi_prof;
330 delete m_window_creator;
331 if (m_machine_communicator != MPI_COMM_NULL)
332 MPI_Comm_free(&m_machine_communicator);
333}
334
335/*---------------------------------------------------------------------------*/
336/*---------------------------------------------------------------------------*/
337
338Request MpiAdapter::
339buildRequest(int ret,MPI_Request mpi_request)
340{
341 return MpiRequest(ret,this,mpi_request);
342}
343
344/*---------------------------------------------------------------------------*/
345/*---------------------------------------------------------------------------*/
346
347void MpiAdapter::
348_checkHasNoRequests()
349{
350 Int64 nb_request = m_request_set->nbRequest();
351 // On ne peut pas faire ce test dans le destructeur car il peut
352 // potentiellement lancé une exception et cela ne doit pas être fait
353 // dans un destructeur.
354 if (nb_request!=0){
355 warning() << " Pending mpi requests size=" << nb_request;
356 m_request_set->printRequests();
357 _checkFatalInRequest();
358 }
359}
360
361/*---------------------------------------------------------------------------*/
362/*---------------------------------------------------------------------------*/
363
364void MpiAdapter::
365destroy()
366{
367 _checkHasNoRequests();
368 delete this;
369}
370
371/*---------------------------------------------------------------------------*/
372/*---------------------------------------------------------------------------*/
373
374void MpiAdapter::
375setRequestErrorAreFatal(bool v)
376{
377 m_request_set->m_request_error_is_fatal = v;
378}
379bool MpiAdapter::
380isRequestErrorAreFatal() const
381{
382 return m_request_set->m_request_error_is_fatal;
383}
384
385void MpiAdapter::
386setPrintRequestError(bool v)
387{
388 m_request_set->m_is_report_error_in_request = v;
389}
390bool MpiAdapter::
391isPrintRequestError() const
392{
393 return m_request_set->m_is_report_error_in_request;
394}
395
396void MpiAdapter::
397setCheckRequest(bool v)
398{
399 m_request_set->m_no_check_request = !v;
400}
401
402bool MpiAdapter::
403isCheckRequest() const
404{
405 return !m_request_set->m_no_check_request;
406}
407
408/*---------------------------------------------------------------------------*/
409/*---------------------------------------------------------------------------*/
410
411int MpiAdapter::
412toMPISize(Int64 count)
413{
414 return _checkSize(count);
415}
416
417/*---------------------------------------------------------------------------*/
418/*---------------------------------------------------------------------------*/
419
420void MpiAdapter::
421_trace(const char* function)
422{
423 if (m_is_trace) {
424 IStackTraceService* stack_service = Platform::getStackTraceService();
425 if (stack_service)
426 info() << "MPI_TRACE: " << function << "\n" << stack_service->stackTrace().toString();
427 else
428 info() << "MPI_TRACE: " << function;
429 }
430}
431
432/*---------------------------------------------------------------------------*/
433/*---------------------------------------------------------------------------*/
434
435void MpiAdapter::
436broadcast(void* buf,Int64 nb_elem,Int32 root,MPI_Datatype datatype)
437{
438 int _nb_elem = _checkSize(nb_elem);
439 _trace(MpiInfo(eMpiName::Bcast).name().localstr());
440 double begin_time = MPI_Wtime();
441 if (m_is_trace)
442 info() << "MPI_TRACE: MPI broadcast: before"
443 << " buf=" << buf
444 << " nb_elem=" << nb_elem
445 << " root=" << root
446 << " datatype=" << datatype;
447
448 m_mpi_prof->broadcast(buf, _nb_elem, datatype, root, m_communicator);
449 double end_time = MPI_Wtime();
450 double sr_time = (end_time-begin_time);
451 //TODO determiner la taille des messages
452 m_stat->add(MpiInfo(eMpiName::Bcast).name(),sr_time,0);
453}
454
455/*---------------------------------------------------------------------------*/
456/*---------------------------------------------------------------------------*/
457
458Request MpiAdapter::
459nonBlockingBroadcast(void* buf,Int64 nb_elem,Int32 root,MPI_Datatype datatype)
460{
461 MPI_Request mpi_request = MPI_REQUEST_NULL;
462 int ret = -1;
463 int _nb_elem = _checkSize(nb_elem);
464 _trace(" MPI_Bcast");
465 double begin_time = MPI_Wtime();
466 ret = MPI_Ibcast(buf,_nb_elem,datatype,root,m_communicator,&mpi_request);
467 double end_time = MPI_Wtime();
468 double sr_time = (end_time-begin_time);
469 //TODO determiner la taille des messages
470 m_stat->add("IBroadcast",sr_time,0);
471 ARCCORE_ADD_REQUEST(mpi_request);
472 return buildRequest(ret,mpi_request);
473}
474
475/*---------------------------------------------------------------------------*/
476/*---------------------------------------------------------------------------*/
477
478void MpiAdapter::
479gather(const void* send_buf,void* recv_buf,Int64 nb_elem,Int32 root,MPI_Datatype datatype)
480{
481 void* _sbuf = const_cast<void*>(send_buf);
482 int _nb_elem = _checkSize(nb_elem);
483 int _root = static_cast<int>(root);
484 _trace(MpiInfo(eMpiName::Gather).name().localstr());
485 double begin_time = MPI_Wtime();
486 m_mpi_prof->gather(_sbuf, _nb_elem, datatype, recv_buf, _nb_elem, datatype, _root, m_communicator);
487 double end_time = MPI_Wtime();
488 double sr_time = (end_time-begin_time);
489 //TODO determiner la taille des messages
490 m_stat->add(MpiInfo(eMpiName::Gather).name(),sr_time,0);
491}
492
493/*---------------------------------------------------------------------------*/
494/*---------------------------------------------------------------------------*/
495
496Request MpiAdapter::
497nonBlockingGather(const void* send_buf,void* recv_buf,
498 Int64 nb_elem,Int32 root,MPI_Datatype datatype)
499{
500 MPI_Request mpi_request = MPI_REQUEST_NULL;
501 int ret = -1;
502 void* _sbuf = const_cast<void*>(send_buf);
503 int _nb_elem = _checkSize(nb_elem);
504 int _root = static_cast<int>(root);
505 _trace("MPI_Igather");
506 double begin_time = MPI_Wtime();
507 ret = MPI_Igather(_sbuf,_nb_elem,datatype,recv_buf,_nb_elem,datatype,_root,
508 m_communicator,&mpi_request);
509 double end_time = MPI_Wtime();
510 double sr_time = (end_time-begin_time);
511 //TODO determiner la taille des messages
512 m_stat->add("IGather",sr_time,0);
513 ARCCORE_ADD_REQUEST(mpi_request);
514 return buildRequest(ret,mpi_request);
515}
516
517/*---------------------------------------------------------------------------*/
518/*---------------------------------------------------------------------------*/
519
520void MpiAdapter::
521allGather(const void* send_buf,void* recv_buf,
522 Int64 nb_elem,MPI_Datatype datatype)
523{
524 void* _sbuf = const_cast<void*>(send_buf);
525 int _nb_elem = _checkSize(nb_elem);
526 _trace(MpiInfo(eMpiName::Allgather).name().localstr());
527 double begin_time = MPI_Wtime();
528 m_mpi_prof->allGather(_sbuf, _nb_elem, datatype, recv_buf, _nb_elem, datatype, m_communicator);
529 double end_time = MPI_Wtime();
530 double sr_time = (end_time-begin_time);
531 //TODO determiner la taille des messages
532 m_stat->add(MpiInfo(eMpiName::Allgather).name(),sr_time,0);
533}
534
535/*---------------------------------------------------------------------------*/
536/*---------------------------------------------------------------------------*/
537
538Request MpiAdapter::
539nonBlockingAllGather(const void* send_buf,void* recv_buf,
540 Int64 nb_elem,MPI_Datatype datatype)
541{
542 MPI_Request mpi_request = MPI_REQUEST_NULL;
543 int ret = -1;
544 void* _sbuf = const_cast<void*>(send_buf);
545 int _nb_elem = _checkSize(nb_elem);
546 _trace("MPI_Iallgather");
547 double begin_time = MPI_Wtime();
548 ret = MPI_Iallgather(_sbuf,_nb_elem,datatype,recv_buf,_nb_elem,datatype,
549 m_communicator,&mpi_request);
550 double end_time = MPI_Wtime();
551 double sr_time = (end_time-begin_time);
552 //TODO determiner la taille des messages
553 m_stat->add("IAllGather",sr_time,0);
554 ARCCORE_ADD_REQUEST(mpi_request);
555 return buildRequest(ret,mpi_request);
556}
557
558/*---------------------------------------------------------------------------*/
559/*---------------------------------------------------------------------------*/
560
561void MpiAdapter::
562gatherVariable(const void* send_buf,void* recv_buf,const int* recv_counts,
563 const int* recv_indexes,Int64 nb_elem,Int32 root,MPI_Datatype datatype)
564{
565 void* _sbuf = const_cast<void*>(send_buf);
566 int _nb_elem = _checkSize(nb_elem);
567 int _root = static_cast<int>(root);
568 _trace(MpiInfo(eMpiName::Gatherv).name().localstr());
569 double begin_time = MPI_Wtime();
570 m_mpi_prof->gatherVariable(_sbuf, _nb_elem, datatype, recv_buf, recv_counts, recv_indexes, datatype, _root, m_communicator);
571 double end_time = MPI_Wtime();
572 double sr_time = (end_time-begin_time);
573 //TODO determiner la taille des messages
574 m_stat->add(MpiInfo(eMpiName::Gatherv).name().localstr(),sr_time,0);
575}
576
577/*---------------------------------------------------------------------------*/
578/*---------------------------------------------------------------------------*/
579
580void MpiAdapter::
581allGatherVariable(const void* send_buf,void* recv_buf,const int* recv_counts,
582 const int* recv_indexes,Int64 nb_elem,MPI_Datatype datatype)
583{
584 void* _sbuf = const_cast<void*>(send_buf);
585 int _nb_elem = _checkSize(nb_elem);
586 _trace(MpiInfo(eMpiName::Allgatherv).name().localstr());
587 //info() << " ALLGATHERV N=" << _nb_elem;
588 //for( int i=0; i<m_comm_size; ++i )
589 //info() << " ALLGATHERV I=" << i << " recv_count=" << recv_counts[i]
590 // << " recv_indexes=" << recv_indexes[i];
591 double begin_time = MPI_Wtime();
592 m_mpi_prof->allGatherVariable(_sbuf, _nb_elem, datatype, recv_buf, recv_counts, recv_indexes, datatype, m_communicator);
593 double end_time = MPI_Wtime();
594 double sr_time = (end_time-begin_time);
595 //TODO determiner la taille des messages
596 m_stat->add(MpiInfo(eMpiName::Allgatherv).name().localstr(),sr_time,0);
597}
598
599/*---------------------------------------------------------------------------*/
600/*---------------------------------------------------------------------------*/
601
602void MpiAdapter::
603scatterVariable(const void* send_buf,const int* send_count,const int* send_indexes,
604 void* recv_buf,Int64 nb_elem,Int32 root,MPI_Datatype datatype)
605{
606 void* _sbuf = const_cast<void*>(send_buf);
607 int* _send_count = const_cast<int*>(send_count);
608 int* _send_indexes = const_cast<int*>(send_indexes);
609 int _nb_elem = _checkSize(nb_elem);
610 _trace(MpiInfo(eMpiName::Scatterv).name().localstr());
611 double begin_time = MPI_Wtime();
612 m_mpi_prof->scatterVariable(_sbuf,
613 _send_count,
614 _send_indexes,
615 datatype,
616 recv_buf,
617 _nb_elem,
618 datatype,
619 root,
620 m_communicator);
621 double end_time = MPI_Wtime();
622 double sr_time = (end_time-begin_time);
623 //TODO determiner la taille des messages
624 m_stat->add(MpiInfo(eMpiName::Scatterv).name(),sr_time,0);
625}
626
627/*---------------------------------------------------------------------------*/
628/*---------------------------------------------------------------------------*/
629
630void MpiAdapter::
631allToAll(const void* send_buf,void* recv_buf,Integer count,MPI_Datatype datatype)
632{
633 void* _sbuf = const_cast<void*>(send_buf);
634 int icount = _checkSize(count);
635 _trace(MpiInfo(eMpiName::Alltoall).name().localstr());
636 double begin_time = MPI_Wtime();
637 m_mpi_prof->allToAll(_sbuf, icount, datatype, recv_buf, icount, datatype, m_communicator);
638 double end_time = MPI_Wtime();
639 double sr_time = (end_time-begin_time);
640 //TODO determiner la taille des messages
641 m_stat->add(MpiInfo(eMpiName::Alltoall).name().localstr(),sr_time,0);
642}
643
644/*---------------------------------------------------------------------------*/
645/*---------------------------------------------------------------------------*/
646
647Request MpiAdapter::
648nonBlockingAllToAll(const void* send_buf,void* recv_buf,Integer count,MPI_Datatype datatype)
649{
650 MPI_Request mpi_request = MPI_REQUEST_NULL;
651 int ret = -1;
652 void* _sbuf = const_cast<void*>(send_buf);
653 int icount = _checkSize(count);
654 _trace("MPI_IAlltoall");
655 double begin_time = MPI_Wtime();
656 ret = MPI_Ialltoall(_sbuf,icount,datatype,recv_buf,icount,datatype,m_communicator,&mpi_request);
657 double end_time = MPI_Wtime();
658 double sr_time = (end_time-begin_time);
659 //TODO determiner la taille des messages
660 m_stat->add("IAllToAll",sr_time,0);
661 ARCCORE_ADD_REQUEST(mpi_request);
662 return buildRequest(ret,mpi_request);
663}
664
665/*---------------------------------------------------------------------------*/
666/*---------------------------------------------------------------------------*/
667
668void MpiAdapter::
669allToAllVariable(const void* send_buf,const int* send_counts,
670 const int* send_indexes,void* recv_buf,const int* recv_counts,
671 const int* recv_indexes,MPI_Datatype datatype)
672{
673 void* _sbuf = const_cast<void*>(send_buf);
674 int* _send_counts = const_cast<int*>(send_counts);
675 int* _send_indexes = const_cast<int*>(send_indexes);
676 int* _recv_counts = const_cast<int*>(recv_counts);
677 int* _recv_indexes = const_cast<int*>(recv_indexes);
678
679 _trace(MpiInfo(eMpiName::Alltoallv).name().localstr());
680 double begin_time = MPI_Wtime();
681 m_mpi_prof->allToAllVariable(_sbuf, _send_counts, _send_indexes, datatype,
682 recv_buf, _recv_counts, _recv_indexes, datatype, m_communicator);
683 double end_time = MPI_Wtime();
684 double sr_time = (end_time-begin_time);
685 //TODO determiner la taille des messages
686 m_stat->add(MpiInfo(eMpiName::Alltoallv).name(),sr_time,0);
687}
688
689/*---------------------------------------------------------------------------*/
690/*---------------------------------------------------------------------------*/
691
692Request MpiAdapter::
693nonBlockingAllToAllVariable(const void* send_buf,const int* send_counts,
694 const int* send_indexes,void* recv_buf,const int* recv_counts,
695 const int* recv_indexes,MPI_Datatype datatype)
696{
697 MPI_Request mpi_request = MPI_REQUEST_NULL;
698 int ret = -1;
699 void* _sbuf = const_cast<void*>(send_buf);
700 int* _send_counts = const_cast<int*>(send_counts);
701 int* _send_indexes = const_cast<int*>(send_indexes);
702 int* _recv_counts = const_cast<int*>(recv_counts);
703 int* _recv_indexes = const_cast<int*>(recv_indexes);
704
705 _trace("MPI_Ialltoallv");
706 double begin_time = MPI_Wtime();
707 ret = MPI_Ialltoallv(_sbuf,_send_counts,_send_indexes,datatype,
708 recv_buf,_recv_counts,_recv_indexes,datatype,
709 m_communicator,&mpi_request);
710 double end_time = MPI_Wtime();
711 double sr_time = (end_time-begin_time);
712 //TODO determiner la taille des messages
713 m_stat->add("IAllToAll",sr_time,0);
714 ARCCORE_ADD_REQUEST(mpi_request);
715 return buildRequest(ret,mpi_request);
716}
717
718/*---------------------------------------------------------------------------*/
719/*---------------------------------------------------------------------------*/
720
721void MpiAdapter::
722barrier()
723{
724 // TODO: a priori on ne devrait pas avoir de requêtes en vol possible
725 // entre deux barrières pour éviter tout problème.
726 // _checkHasNoRequests();
727 // TODO ajouter trace correspondante pour le profiling.
728 MPI_Barrier(m_communicator);
729}
730
731/*---------------------------------------------------------------------------*/
732/*---------------------------------------------------------------------------*/
733
734Request MpiAdapter::
735nonBlockingBarrier()
736{
737 MPI_Request mpi_request = MPI_REQUEST_NULL;
738 int ret = -1;
739 ret = MPI_Ibarrier(m_communicator,&mpi_request);
740 ARCCORE_ADD_REQUEST(mpi_request);
741 return buildRequest(ret,mpi_request);
742}
743
744/*---------------------------------------------------------------------------*/
745/*---------------------------------------------------------------------------*/
746
747void MpiAdapter::
748allReduce(const void* send_buf,void* recv_buf,Int64 count,MPI_Datatype datatype,MPI_Op op)
749{
750 void* _sbuf = const_cast<void*>(send_buf);
751 int _n = _checkSize(count);
752 double begin_time = MPI_Wtime();
753 _trace(MpiInfo(eMpiName::Allreduce).name().localstr());
754 try{
755 ++m_nb_all_reduce;
756 m_mpi_prof->allReduce(_sbuf, recv_buf, _n, datatype, op, m_communicator);
757 }
758 catch(TimeoutException& ex)
759 {
760 std::ostringstream ostr;
761 ostr << "MPI_Allreduce"
762 << " send_buf=" << send_buf
763 << " recv_buf=" << recv_buf
764 << " n=" << count
765 << " datatype=" << datatype
766 << " op=" << op
767 << " NB=" << m_nb_all_reduce;
768 ex.setAdditionalInfo(ostr.str());
769 throw;
770 }
771 double end_time = MPI_Wtime();
772 m_stat->add(MpiInfo(eMpiName::Allreduce).name(),end_time-begin_time,count);
773}
774
775/*---------------------------------------------------------------------------*/
776/*---------------------------------------------------------------------------*/
777
778Request MpiAdapter::
779nonBlockingAllReduce(const void* send_buf,void* recv_buf,Int64 count,MPI_Datatype datatype,MPI_Op op)
780{
781 MPI_Request mpi_request = MPI_REQUEST_NULL;
782 int ret = -1;
783 void* _sbuf = const_cast<void*>(send_buf);
784 int _n = _checkSize(count);
785 double begin_time = MPI_Wtime();
786 _trace("MPI_IAllreduce");
787 ret = MPI_Iallreduce(_sbuf,recv_buf,_n,datatype,op,m_communicator,&mpi_request);
788 double end_time = MPI_Wtime();
789 m_stat->add("IReduce",end_time-begin_time,_n);
790 ARCCORE_ADD_REQUEST(mpi_request);
791 return buildRequest(ret,mpi_request);
792}
793
794/*---------------------------------------------------------------------------*/
795/*---------------------------------------------------------------------------*/
796
797void MpiAdapter::
798reduce(const void* send_buf,void* recv_buf,Int64 count,MPI_Datatype datatype,MPI_Op op,Integer root)
799{
800 void* _sbuf = const_cast<void*>(send_buf);
801 int _n = _checkSize(count);
802 int _root = static_cast<int>(root);
803 double begin_time = MPI_Wtime();
804 _trace(MpiInfo(eMpiName::Reduce).name().localstr());
805 try{
806 ++m_nb_reduce;
807 m_mpi_prof->reduce(_sbuf, recv_buf, _n, datatype, op, _root, m_communicator);
808 }
809 catch(TimeoutException& ex)
810 {
811 std::ostringstream ostr;
812 ostr << "MPI_reduce"
813 << " send_buf=" << send_buf
814 << " recv_buf=" << recv_buf
815 << " n=" << count
816 << " datatype=" << datatype
817 << " op=" << op
818 << " root=" << root
819 << " NB=" << m_nb_reduce;
820 ex.setAdditionalInfo(ostr.str());
821 throw;
822 }
823
824 double end_time = MPI_Wtime();
825 m_stat->add(MpiInfo(eMpiName::Reduce).name(),end_time-begin_time,0);
826}
827
828/*---------------------------------------------------------------------------*/
829/*---------------------------------------------------------------------------*/
830
831void MpiAdapter::
832scan(const void* send_buf,void* recv_buf,Int64 count,MPI_Datatype datatype,MPI_Op op)
833{
834 void* _sbuf = const_cast<void*>(send_buf);
835 int _n = _checkSize(count);
836 double begin_time = MPI_Wtime();
837 _trace(MpiInfo(eMpiName::Scan).name().localstr());
838 m_mpi_prof->scan(_sbuf, recv_buf, _n, datatype, op, m_communicator);
839 double end_time = MPI_Wtime();
840 m_stat->add(MpiInfo(eMpiName::Scan).name(),end_time-begin_time,count);
841}
842
843/*---------------------------------------------------------------------------*/
844/*---------------------------------------------------------------------------*/
845
846void MpiAdapter::
847directSendRecv(const void* send_buffer,Int64 send_buffer_size,
848 void* recv_buffer,Int64 recv_buffer_size,
849 Int32 proc,Int64 elem_size,MPI_Datatype data_type)
850{
851 void* v_send_buffer = const_cast<void*>(send_buffer);
852 MPI_Status mpi_status;
853 double begin_time = MPI_Wtime();
854 _trace(MpiInfo(eMpiName::Sendrecv).name().localstr());
855 int sbuf_size = _checkSize(send_buffer_size);
856 int rbuf_size = _checkSize(recv_buffer_size);
857 m_mpi_prof->sendRecv(v_send_buffer, sbuf_size, data_type, proc, 99,
858 recv_buffer, rbuf_size, data_type, proc, 99,
859 m_communicator, &mpi_status);
860 double end_time = MPI_Wtime();
861 Int64 send_size = send_buffer_size * elem_size;
862 Int64 recv_size = recv_buffer_size * elem_size;
863 double sr_time = (end_time-begin_time);
864
865 //debug(Trace::High) << "MPI SendRecv: send " << send_size << " recv "
866 // << recv_size << " time " << sr_time ;
867 m_stat->add(MpiInfo(eMpiName::Sendrecv).name(),sr_time,send_size+recv_size);
868}
869
870/*---------------------------------------------------------------------------*/
871/*---------------------------------------------------------------------------*/
872
873Request MpiAdapter::
874sendNonBlockingNoStat(const void* send_buffer,Int64 send_buffer_size,
875 Int32 dest_rank,MPI_Datatype data_type,int mpi_tag)
876{
877 void* v_send_buffer = const_cast<void*>(send_buffer);
878 MPI_Request mpi_request = MPI_REQUEST_NULL;
879 int sbuf_size = _checkSize(send_buffer_size);
880 int ret = 0;
881 m_mpi_prof->iSend(v_send_buffer, sbuf_size, data_type, dest_rank, mpi_tag, m_communicator, &mpi_request);
882 if (m_is_trace)
883 info() << " ISend ret=" << ret << " proc=" << dest_rank << " tag=" << mpi_tag << " request=" << mpi_request;
884 ARCCORE_ADD_REQUEST(mpi_request);
885 return buildRequest(ret,mpi_request);
886}
887
888/*---------------------------------------------------------------------------*/
889/*---------------------------------------------------------------------------*/
890
891Request MpiAdapter::
892directSend(const void* send_buffer,Int64 send_buffer_size,
893 Int32 proc,Int64 elem_size,MPI_Datatype data_type,
894 int mpi_tag,bool is_blocked
895 )
896{
897 void* v_send_buffer = const_cast<void*>(send_buffer);
898 MPI_Request mpi_request = MPI_REQUEST_NULL;
899
900 double begin_time = 0.0;
901 double end_time = 0.0;
902 Int64 send_size = send_buffer_size * elem_size;
903 int ret = 0;
904 if (m_is_trace)
905 info() << "MPI_TRACE: MPI Send: send before"
906 << " size=" << send_size
907 << " dest=" << proc
908 << " tag=" << mpi_tag
909 << " datatype=" << data_type
910 << " blocking " << is_blocked;
911 if (is_blocked){
912 // si m_mpi_lock n'est pas nul, il faut
913 // utiliser un MPI_ISend suivi d'une boucle
914 // active de MPI_Test pour eviter tout probleme
915 // de dead lock.
916 if (m_mpi_lock){
917 {
918 MpiLock::Section mls(m_mpi_lock);
919 begin_time = MPI_Wtime();
920 int sbuf_size = _checkSize(send_buffer_size);
921 m_mpi_prof->iSend(v_send_buffer, sbuf_size, data_type, proc, mpi_tag, m_communicator, &mpi_request);
922 }
923 int is_finished = 0;
924 MPI_Status mpi_status;
925 while (is_finished==0){
926 MpiLock::Section mls(m_mpi_lock);
927 MPI_Request_get_status(mpi_request,&is_finished,&mpi_status);
928 if (is_finished!=0){
929 m_mpi_prof->wait(&mpi_request, (MPI_Status *) MPI_STATUS_IGNORE);
930 end_time = MPI_Wtime();
931 mpi_request = MPI_REQUEST_NULL;
932 }
933 }
934 }
935 else{
936 MpiLock::Section mls(m_mpi_lock);
937 begin_time = MPI_Wtime();
938 int sbuf_size = _checkSize(send_buffer_size);
939 m_mpi_prof->send(v_send_buffer, sbuf_size, data_type, proc, mpi_tag, m_communicator);
940 end_time = MPI_Wtime();
941 }
942 }
943 else{
944 {
945 MpiLock::Section mls(m_mpi_lock);
946 begin_time = MPI_Wtime();
947 int sbuf_size = _checkSize(send_buffer_size);
948 m_mpi_prof->iSend(v_send_buffer, sbuf_size, data_type, proc, mpi_tag, m_communicator, &mpi_request);
949 if (m_is_trace)
950 info() << " ISend ret=" << ret << " proc=" << proc << " tag=" << mpi_tag << " request=" << mpi_request;
951 end_time = MPI_Wtime();
952 ARCCORE_ADD_REQUEST(mpi_request);
953 }
954 if (m_is_trace){
955 info() << "MPI Send: send after"
956 << " request=" << mpi_request;
957 }
958 }
959 double sr_time = (end_time-begin_time);
960
961 debug(Trace::High) << "MPI Send: send " << send_size
962 << " time " << sr_time << " blocking " << is_blocked;
963 // TODO(FL): regarder comment faire pour profiler le Isend
964 m_stat->add(MpiInfo(eMpiName::Send).name(),end_time-begin_time,send_size);
965 return buildRequest(ret,mpi_request);
966}
967
968/*---------------------------------------------------------------------------*/
969/*---------------------------------------------------------------------------*/
970
971Request MpiAdapter::
972directSendPack(const void* send_buffer,Int64 send_buffer_size,
973 Int32 proc,int mpi_tag,bool is_blocked)
974{
975 return directSend(send_buffer,send_buffer_size,proc,1,MPI_PACKED,mpi_tag,is_blocked);
976}
977
978/*---------------------------------------------------------------------------*/
979/*---------------------------------------------------------------------------*/
980
981MpiMessagePassingMng* MpiAdapter::
982commSplit(bool keep)
983{
984 MPI_Comm new_comm;
985
986 MPI_Comm_split(m_communicator, (keep) ? 1 : MPI_UNDEFINED, commRank(), &new_comm);
987 if (keep) {
988 // Failed if new_comm is MPI_COMM_NULL
989 return StandaloneMpiMessagePassingMng::create(new_comm, true);
990 }
991 return nullptr;
992}
993
994/*---------------------------------------------------------------------------*/
995/*---------------------------------------------------------------------------*/
996
997Request MpiAdapter::
998receiveNonBlockingNoStat(void* recv_buffer,Int64 recv_buffer_size,
999 Int32 source_rank,MPI_Datatype data_type,int mpi_tag)
1000{
1001 int rbuf_size = _checkSize(recv_buffer_size);
1002 int ret = 0;
1003 MPI_Request mpi_request = MPI_REQUEST_NULL;
1004 m_mpi_prof->iRecv(recv_buffer, rbuf_size, data_type, source_rank, mpi_tag, m_communicator, &mpi_request);
1005 ARCCORE_ADD_REQUEST(mpi_request);
1006 return buildRequest(ret,mpi_request);
1007}
1008
1009/*---------------------------------------------------------------------------*/
1010/*---------------------------------------------------------------------------*/
1011
1012Request MpiAdapter::
1013directRecv(void* recv_buffer,Int64 recv_buffer_size,
1014 Int32 proc,Int64 elem_size,MPI_Datatype data_type,
1015 int mpi_tag,bool is_blocked)
1016{
1017 MPI_Status mpi_status;
1018 MPI_Request mpi_request = MPI_REQUEST_NULL;
1019 int ret = 0;
1020 double begin_time = 0.0;
1021 double end_time = 0.0;
1022
1023 int i_proc = 0;
1024 if (proc==A_PROC_NULL_RANK)
1025 ARCCORE_THROW(NotImplementedException,"Receive with MPI_PROC_NULL");
1026 if (proc == A_NULL_RANK && !m_is_allow_null_rank_for_any_source)
1027 ARCCORE_FATAL("Can not use A_NULL_RANK for any source. Use A_ANY_SOURCE_RANK instead");
1028 if (proc==A_NULL_RANK || proc==A_ANY_SOURCE_RANK)
1029 i_proc = MPI_ANY_SOURCE;
1030 else
1031 i_proc = static_cast<int>(proc);
1032
1033 Int64 recv_size = recv_buffer_size * elem_size;
1034 if (m_is_trace){
1035 info() << "MPI_TRACE: MPI Recv: recv before "
1036 << " size=" << recv_size
1037 << " from=" << i_proc
1038 << " tag=" << mpi_tag
1039 << " datatype=" << data_type
1040 << " blocking=" << is_blocked;
1041 }
1042 if (is_blocked){
1043 // si m_mpi_lock n'est pas nul, il faut
1044 // utiliser un MPI_IRecv suivi d'une boucle
1045 // active de MPI_Test pour eviter tout probleme
1046 // de dead lock.
1047 if (m_mpi_lock){
1048 {
1049 MpiLock::Section mls(m_mpi_lock);
1050 begin_time = MPI_Wtime();
1051 int rbuf_size = _checkSize(recv_buffer_size);
1052 m_mpi_prof->iRecv(recv_buffer, rbuf_size, data_type, i_proc, mpi_tag, m_communicator, &mpi_request);
1053 }
1054 int is_finished = 0;
1055 MPI_Status mpi_status;
1056 while (is_finished==0){
1057 MpiLock::Section mls(m_mpi_lock);
1058 MPI_Request_get_status(mpi_request,&is_finished,&mpi_status);
1059 if (is_finished!=0){
1060 end_time = MPI_Wtime();
1061 m_mpi_prof->wait(&mpi_request, (MPI_Status *) MPI_STATUS_IGNORE);
1062 mpi_request = MPI_REQUEST_NULL;
1063 }
1064 }
1065 }
1066 else{
1067 MpiLock::Section mls(m_mpi_lock);
1068 begin_time = MPI_Wtime();
1069 int rbuf_size = _checkSize(recv_buffer_size);
1070 m_mpi_prof->recv(recv_buffer, rbuf_size, data_type, i_proc, mpi_tag, m_communicator, &mpi_status);
1071 end_time = MPI_Wtime();
1072 }
1073 }
1074 else{
1075 {
1076 MpiLock::Section mls(m_mpi_lock);
1077 begin_time = MPI_Wtime();
1078 int rbuf_size = _checkSize(recv_buffer_size);
1079 m_mpi_prof->iRecv(recv_buffer, rbuf_size, data_type, i_proc, mpi_tag, m_communicator, &mpi_request);
1080 end_time = MPI_Wtime();
1081 ARCCORE_ADD_REQUEST(mpi_request);
1082 }
1083 if (m_is_trace){
1084 info() << "MPI Recv: recv after "
1085 << " request=" << mpi_request;
1086 }
1087 }
1088 double sr_time = (end_time-begin_time);
1089
1090 debug(Trace::High) << "MPI Recv: recv after " << recv_size
1091 << " time " << sr_time << " blocking " << is_blocked;
1092 m_stat->add(MpiInfo(eMpiName::Recv).name(),end_time-begin_time,recv_size);
1093 return buildRequest(ret,mpi_request);
1094}
1095
1096/*---------------------------------------------------------------------------*/
1097/*---------------------------------------------------------------------------*/
1098
1099void MpiAdapter::
1100probeRecvPack(UniqueArray<Byte>& recv_buffer,Int32 proc)
1101{
1102 double begin_time = MPI_Wtime();
1103 MPI_Status status;
1104 int recv_buffer_size = 0;
1105 _trace("MPI_Probe");
1106 m_mpi_prof->probe(proc, 101, m_communicator, &status);
1107 m_mpi_prof->getCount(&status, MPI_PACKED, &recv_buffer_size);
1108
1109 recv_buffer.resize(recv_buffer_size);
1110 m_mpi_prof->recv(recv_buffer.data(), recv_buffer_size, MPI_PACKED, proc, 101, m_communicator, &status);
1111
1112 double end_time = MPI_Wtime();
1113 Int64 recv_size = recv_buffer_size;
1114 double sr_time = (end_time-begin_time);
1115 debug(Trace::High) << "MPI probeRecvPack " << recv_size
1116 << " time " << sr_time;
1117 m_stat->add(MpiInfo(eMpiName::Recv).name(),end_time-begin_time,recv_size);
1118}
1119
1120/*---------------------------------------------------------------------------*/
1121/*---------------------------------------------------------------------------*/
1122
1123MessageSourceInfo MpiAdapter::
1124_buildSourceInfoFromStatus(const MPI_Status& mpi_status)
1125{
1126 // Récupère la taille en octet du message.
1127 MPI_Count message_size = 0;
1128 MPI_Get_elements_x(&mpi_status,MPI_BYTE,&message_size);
1129 MessageTag tag(mpi_status.MPI_TAG);
1130 MessageRank rank(mpi_status.MPI_SOURCE);
1131 return MessageSourceInfo(rank,tag,message_size);
1132}
1133
1134/*---------------------------------------------------------------------------*/
1135/*---------------------------------------------------------------------------*/
1136
1137MessageId MpiAdapter::
1138_probeMessage(MessageRank source,MessageTag tag,bool is_blocking)
1139{
1140 MPI_Status mpi_status;
1141 int has_message = 0;
1142 MPI_Message message;
1143 int ret = 0;
1144 int mpi_source = source.value();
1145 if (source.isProcNull())
1146 ARCCORE_THROW(NotImplementedException,"Probe with MPI_PROC_NULL");
1147 if (source.isNull() && !m_is_allow_null_rank_for_any_source)
1148 ARCCORE_FATAL("Can not use MPI_Mprobe with null rank. Use MessageRank::anySourceRank() instead");
1149 if (source.isNull() || source.isAnySource())
1150 mpi_source = MPI_ANY_SOURCE;
1151 int mpi_tag = tag.value();
1152 if (tag.isNull())
1153 mpi_tag = MPI_ANY_TAG;
1154 if (is_blocking){
1155 ret = MPI_Mprobe(mpi_source,mpi_tag,m_communicator,&message,&mpi_status);
1156 has_message = true;
1157 }
1158 else {
1159 ret = MPI_Improbe(mpi_source, mpi_tag, m_communicator, &has_message, &message, &mpi_status);
1160 }
1161 if (ret!=0)
1162 ARCCORE_FATAL("Error during call to MPI_Mprobe r={0}",ret);
1163 MessageId ret_message;
1164 if (has_message!=0){
1165 MessageSourceInfo si(_buildSourceInfoFromStatus(mpi_status));
1166 ret_message = MessageId(si,message);
1167 }
1168 return ret_message;
1169}
1170
1171/*---------------------------------------------------------------------------*/
1172/*---------------------------------------------------------------------------*/
1173
1174MessageId MpiAdapter::
1175probeMessage(PointToPointMessageInfo message)
1176{
1177 if (!message.isValid())
1178 return MessageId();
1179
1180 // Il faut avoir initialisé le message avec un couple (rang/tag).
1181 if (!message.isRankTag())
1182 ARCCORE_FATAL("Invalid message_info: message.isRankTag() is false");
1183
1184 return _probeMessage(message.destinationRank(),message.tag(),message.isBlocking());
1185}
1186
1187/*---------------------------------------------------------------------------*/
1188/*---------------------------------------------------------------------------*/
1189
1190MessageSourceInfo MpiAdapter::
1191_legacyProbeMessage(MessageRank source,MessageTag tag,bool is_blocking)
1192{
1193 MPI_Status mpi_status;
1194 int has_message = 0;
1195 int ret = 0;
1196 int mpi_source = source.value();
1197 if (source.isProcNull())
1198 ARCCORE_THROW(NotImplementedException,"Probe with MPI_PROC_NULL");
1199 if (source.isNull() && !m_is_allow_null_rank_for_any_source)
1200 ARCCORE_FATAL("Can not use MPI_Probe with null rank. Use MessageRank::anySourceRank() instead");
1201 if (source.isNull() || source.isAnySource())
1202 mpi_source = MPI_ANY_SOURCE;
1203 int mpi_tag = tag.value();
1204 if (tag.isNull())
1205 mpi_tag = MPI_ANY_TAG;
1206 if (is_blocking){
1207 ret = MPI_Probe(mpi_source,mpi_tag,m_communicator,&mpi_status);
1208 has_message = true;
1209 }
1210 else
1211 ret = MPI_Iprobe(mpi_source,mpi_tag,m_communicator,&has_message,&mpi_status);
1212 if (ret!=0)
1213 ARCCORE_FATAL("Error during call to MPI_Mprobe r={0}",ret);
1214 if (has_message!=0)
1215 return _buildSourceInfoFromStatus(mpi_status);
1216 return {};
1217}
1218
1219/*---------------------------------------------------------------------------*/
1220/*---------------------------------------------------------------------------*/
1221
1222MessageSourceInfo MpiAdapter::
1223legacyProbeMessage(PointToPointMessageInfo message)
1224{
1225 if (!message.isValid())
1226 return {};
1227
1228 // Il faut avoir initialisé le message avec un couple (rang/tag).
1229 if (!message.isRankTag())
1230 ARCCORE_FATAL("Invalid message_info: message.isRankTag() is false");
1231
1232 return _legacyProbeMessage(message.destinationRank(),message.tag(),message.isBlocking());
1233}
1234
1235/*---------------------------------------------------------------------------*/
1236/*---------------------------------------------------------------------------*/
1237//! Réception via MPI_Mrecv() ou MPI_Imrecv()
1238Request MpiAdapter::
1239directRecv(void* recv_buffer,Int64 recv_buffer_size,
1240 MessageId message,Int64 elem_size,MPI_Datatype data_type,
1241 bool is_blocked)
1242{
1243 MPI_Status mpi_status;
1244 MPI_Request mpi_request = MPI_REQUEST_NULL;
1245 MPI_Message mpi_message = (MPI_Message)message;
1246 int ret = 0;
1247 double begin_time = 0.0;
1248 double end_time = 0.0;
1249
1250 Int64 recv_size = recv_buffer_size * elem_size;
1251 if (m_is_trace){
1252 info() << "MPI_TRACE: MPI Mrecv: recv before "
1253 << " size=" << recv_size
1254 << " from_msg=" << message
1255 << " datatype=" << data_type
1256 << " blocking=" << is_blocked;
1257 }
1258 if (is_blocked){
1259 // si m_mpi_lock n'est pas nul, il faut
1260 // utiliser un MPI_IRecv suivi d'une boucle
1261 // active de MPI_Test pour eviter tout probleme
1262 // de dead lock.
1263 if (m_mpi_lock){
1264 {
1265 MpiLock::Section mls(m_mpi_lock);
1266 begin_time = MPI_Wtime();
1267 int rbuf_size = _checkSize(recv_buffer_size);
1268 MPI_Imrecv(recv_buffer,rbuf_size,data_type,&mpi_message,&mpi_request);
1269 //m_mpi_prof->iRecv(recv_buffer, rbuf_size, data_type, i_proc, mpi_tag, m_communicator, &mpi_request);
1270 }
1271 int is_finished = 0;
1272 MPI_Status mpi_status;
1273 while (is_finished==0){
1274 MpiLock::Section mls(m_mpi_lock);
1275 MPI_Request_get_status(mpi_request,&is_finished,&mpi_status);
1276 if (is_finished!=0){
1277 end_time = MPI_Wtime();
1278 m_mpi_prof->wait(&mpi_request, (MPI_Status *) MPI_STATUS_IGNORE);
1279 mpi_request = MPI_REQUEST_NULL;
1280 }
1281 }
1282 }
1283 else{
1284 MpiLock::Section mls(m_mpi_lock);
1285 begin_time = MPI_Wtime();
1286 int rbuf_size = _checkSize(recv_buffer_size);
1287 MPI_Mrecv(recv_buffer,rbuf_size,data_type,&mpi_message,&mpi_status);
1288 //m_mpi_prof->recv(recv_buffer, rbuf_size, data_type, i_proc, mpi_tag, m_communicator, &mpi_status);
1289 end_time = MPI_Wtime();
1290 }
1291 }
1292 else{
1293 {
1294 MpiLock::Section mls(m_mpi_lock);
1295 begin_time = MPI_Wtime();
1296 int rbuf_size = _checkSize(recv_buffer_size);
1297 //m_mpi_prof->iRecv(recv_buffer, rbuf_size, data_type, i_proc, mpi_tag, m_communicator, &mpi_request);
1298 ret = MPI_Imrecv(recv_buffer,rbuf_size,data_type,&mpi_message,&mpi_request);
1299 //m_mpi_prof->iRecv(recv_buffer, rbuf_size, data_type, i_proc, mpi_tag, m_communicator, &mpi_request);
1300 end_time = MPI_Wtime();
1301 ARCCORE_ADD_REQUEST(mpi_request);
1302 }
1303 if (m_is_trace){
1304 info() << "MPI Recv: recv after "
1305 << " request=" << mpi_request;
1306 }
1307 }
1308 double sr_time = (end_time-begin_time);
1309
1310 debug(Trace::High) << "MPI Recv: recv after " << recv_size
1311 << " time " << sr_time << " blocking " << is_blocked;
1312 m_stat->add(MpiInfo(eMpiName::Recv).name(),end_time-begin_time,recv_size);
1313 return buildRequest(ret,mpi_request);
1314}
1315
1316/*---------------------------------------------------------------------------*/
1317/*---------------------------------------------------------------------------*/
1318
1319Request MpiAdapter::
1320directRecvPack(void* recv_buffer,Int64 recv_buffer_size,
1321 Int32 proc,int mpi_tag,bool is_blocking)
1322{
1323 return directRecv(recv_buffer,recv_buffer_size,proc,1,MPI_PACKED,mpi_tag,is_blocking);
1324}
1325
1326/*---------------------------------------------------------------------------*/
1327/*---------------------------------------------------------------------------*/
1328
1329// FIXME: Implement direct method with MPI_STATUS_IGNORE
1330void MpiAdapter::
1331waitAllRequests(ArrayView<Request> requests)
1332{
1333 UniqueArray<bool> indexes(requests.size());
1334 UniqueArray<MPI_Status> mpi_status(requests.size());
1335 while (_waitAllRequestsMPI(requests, indexes, mpi_status)){
1336 ; // Continue tant qu'il y a des requêtes.
1337 }
1338}
1339
1340/*---------------------------------------------------------------------------*/
1341/*---------------------------------------------------------------------------*/
1342
1343// FIXME: Implement direct method with MPI_STATUS_IGNORE
1344void MpiAdapter::
1345waitSomeRequests(ArrayView<Request> requests,
1346 ArrayView<bool> indexes,
1347 bool is_non_blocking)
1348{
1349 UniqueArray<MPI_Status> mpi_status(requests.size());
1350 waitSomeRequestsMPI(requests, indexes, mpi_status, is_non_blocking);
1351}
1352
1353/*---------------------------------------------------------------------------*/
1354/*---------------------------------------------------------------------------*/
1355
1356struct MpiAdapter::SubRequestInfo
1357{
1358 SubRequestInfo(Ref<ISubRequest> sr, Integer i, int source_rank, int source_tag)
1359 : sub_request(sr)
1360 , index(i)
1361 , mpi_source_rank(source_rank)
1362 , mpi_source_tag(source_tag)
1363 {}
1364
1365 Ref<ISubRequest> sub_request;
1366 Integer index = -1;
1367 int mpi_source_rank = MPI_PROC_NULL;
1368 int mpi_source_tag = 0;
1369};
1370
1371/*---------------------------------------------------------------------------*/
1372/*---------------------------------------------------------------------------*/
1373
1374bool MpiAdapter::
1375_handleEndRequests(ArrayView<Request> requests,ArrayView<bool> done_indexes,
1376 ArrayView<MPI_Status> status)
1377{
1378 UniqueArray<SubRequestInfo> new_requests;
1379 Integer size = requests.size();
1380 {
1381 MpiLock::Section mls(m_mpi_lock);
1382 for( Integer i=0; i<size; ++i ) {
1383 if (done_indexes[i]){
1384 // Attention à bien utiliser une référence sinon le reset ne
1385 // s'applique pas à la bonne variable
1386 Request& r = requests[i];
1387 // Note: la requête peut ne pas être valide (par exemple s'il s'agit)
1388 // d'une requête bloquante mais avoir tout de même une sous-requête.
1389 if (r.hasSubRequest()){
1390 if (m_is_trace)
1391 info() << "Done request with sub-request r=" << r << " mpi_r=" << r << " i=" << i
1392 << " source_rank=" << status[i].MPI_SOURCE
1393 << " source_tag=" << status[i].MPI_TAG;
1394 new_requests.add(SubRequestInfo(r.subRequest(), i, status[i].MPI_SOURCE, status[i].MPI_TAG));
1395 }
1396 if (r.isValid()){
1397 _removeRequest((MPI_Request)(r));
1398 r.reset();
1399 }
1400 }
1401 }
1402 }
1403
1404 // NOTE: les appels aux sous-requêtes peuvent générer d'autres requêtes.
1405 // Il faut faire attention à ne pas utiliser les sous-requêtes avec
1406 // le verrou actif.
1407 bool has_new_request = false;
1408 if (!new_requests.empty()){
1409 // Contient le status de la \a ième requête
1410 UniqueArray<MPI_Status> old_status(size);
1411 {
1412 Integer index = 0;
1413 for( Integer i=0; i<size; ++i ){
1414 if (done_indexes[i]){
1415 old_status[i] = status[index];
1416 ++index;
1417 }
1418 }
1419 }
1420 // S'il y a des nouvelles requêtes, il faut décaler les valeurs de 'status'
1421 for( SubRequestInfo& sri : new_requests ){
1422 Integer index = sri.index;
1423 if (m_is_trace)
1424 info() << "Before handle new request index=" << index
1425 << " sri.source_rank=" << sri.mpi_source_rank
1426 << " sri.source_tag=" << sri.mpi_source_tag;
1427 SubRequestCompletionInfo completion_info(MessageRank(old_status[index].MPI_SOURCE), MessageTag(old_status[index].MPI_TAG));
1428 Request r = sri.sub_request->executeOnCompletion(completion_info);
1429 if (m_is_trace)
1430 info() << "Handle new request index=" << index << " old_r=" << requests[index] << " new_r=" << r;
1431 // S'il y a une nouvelle requête, alors elle remplace
1432 // l'ancienne et donc il faut faire comme si
1433 // la requête d'origine n'est pas terminée.
1434 if (r.isValid()){
1435 has_new_request = true;
1436 requests[index] = r;
1437 done_indexes[index] = false;
1438 }
1439 }
1440 {
1441 Integer index = 0;
1442 for( Integer i=0; i<size; ++i ){
1443 if (done_indexes[i]){
1444 status[index] = old_status[i];
1445 ++index;
1446 }
1447 }
1448 }
1449
1450 }
1451 return has_new_request;
1452}
1453
1454/*---------------------------------------------------------------------------*/
1455/*---------------------------------------------------------------------------*/
1456
1457bool MpiAdapter::
1458_waitAllRequestsMPI(ArrayView<Request> requests,
1459 ArrayView<bool> indexes,
1460 ArrayView<MPI_Status> mpi_status)
1461{
1462 Integer size = requests.size();
1463 if (size==0)
1464 return false;
1465 //ATTENTION: Mpi modifie en retour de MPI_Waitall ce tableau
1466 UniqueArray<MPI_Request> mpi_request(size);
1467 for( Integer i=0; i<size; ++i ){
1468 mpi_request[i] = (MPI_Request)(requests[i]);
1469 }
1470 if (m_is_trace)
1471 info() << " MPI_waitall begin size=" << size;
1472 double diff_time = 0.0;
1473 if (m_mpi_lock){
1474 double begin_time = MPI_Wtime();
1475 for( Integer i=0; i<size; ++i ){
1476 MPI_Request request = (MPI_Request)(mpi_request[i]);
1477 int is_finished = 0;
1478 while (is_finished==0){
1479 MpiLock::Section mls(m_mpi_lock);
1480 m_mpi_prof->test(&request, &is_finished, (MPI_Status *) MPI_STATUS_IGNORE);
1481 }
1482 }
1483 double end_time = MPI_Wtime();
1484 diff_time = end_time - begin_time;
1485 }
1486 else{
1487 //TODO: transformer en boucle while et MPI_Testall si m_mpi_lock est non nul
1488 MpiLock::Section mls(m_mpi_lock);
1489 double begin_time = MPI_Wtime();
1490 m_mpi_prof->waitAll(size, mpi_request.data(), mpi_status.data());
1491 double end_time = MPI_Wtime();
1492 diff_time = end_time - begin_time;
1493 }
1494
1495 // Indique que chaque requête est traitée car on a fait un waitall.
1496 for( Integer i=0; i<size; ++i ){
1497 indexes[i] = true;
1498 }
1499
1500 bool has_new_request = _handleEndRequests(requests,indexes,mpi_status);
1501 if (m_is_trace)
1502 info() << " MPI_waitall end size=" << size;
1503 m_stat->add(MpiInfo(eMpiName::Waitall).name(),diff_time,size);
1504 return has_new_request;
1505}
1506
1507/*---------------------------------------------------------------------------*/
1508/*---------------------------------------------------------------------------*/
1509
1510void MpiAdapter::
1511waitSomeRequestsMPI(ArrayView<Request> requests,ArrayView<bool> indexes,
1512 ArrayView<MPI_Status> mpi_status,bool is_non_blocking)
1513{
1514 Integer size = requests.size();
1515 if (size==0)
1516 return;
1517 //TODO: utiliser des StackArray (quand ils seront disponibles...)
1518 UniqueArray<MPI_Request> mpi_request(size);
1519 UniqueArray<MPI_Request> saved_mpi_request(size);
1520 UniqueArray<int> completed_requests(size);
1521 int nb_completed_request = 0;
1522
1523 // Sauve la requete pour la desallouer dans m_allocated_requests,
1524 // car sa valeur ne sera plus valide après appel à MPI_Wait*
1525 for (Integer i = 0; i < size; ++i) {
1526 // Dans le cas où l'on appelle cette méthode plusieurs fois
1527 // avec le même tableau de requests, il se peut qu'il y ai des
1528 // requests invalides qui feront planter l'appel à MPI.
1529 if (!requests[i].isValid()) {
1530 saved_mpi_request[i] = MPI_REQUEST_NULL;
1531 }
1532 else {
1533 saved_mpi_request[i] = static_cast<MPI_Request>(requests[i]);
1534 }
1535 }
1536
1537 // N'affiche le debug que en mode bloquant ou si explicitement demandé pour
1538 // éviter trop de messages
1539 bool is_print_debug = m_is_trace || (!is_non_blocking);
1540 if (is_print_debug)
1541 debug() << "WaitRequestBegin is_non_blocking=" << is_non_blocking << " n=" << size;
1542
1543 double begin_time = MPI_Wtime();
1544
1545 try{
1546 if (is_non_blocking){
1547 _trace(MpiInfo(eMpiName::Testsome).name().localstr());
1548 {
1549 MpiLock::Section mls(m_mpi_lock);
1550 m_mpi_prof->testSome(size, saved_mpi_request.data(), &nb_completed_request,
1551 completed_requests.data(), mpi_status.data());
1552 }
1553 //If there is no active handle in the list, it returns outcount = MPI_UNDEFINED.
1554 if (nb_completed_request == MPI_UNDEFINED) // Si aucune requete n'etait valide.
1555 nb_completed_request = 0;
1556 if (is_print_debug)
1557 debug() << "WaitSomeRequestMPI: TestSome nb_completed=" << nb_completed_request;
1558 }
1559 else{
1560 _trace(MpiInfo(eMpiName::Waitsome).name().localstr());
1561 {
1562 // TODO: si le verrou existe, il faut faire une boucle de testSome() pour ne
1563 // pas bloquer.
1564 MpiLock::Section mls(m_mpi_lock);
1565 m_mpi_prof->waitSome(size, saved_mpi_request.data(), &nb_completed_request,
1566 completed_requests.data(), mpi_status.data());
1567 }
1568 // Il ne faut pas utiliser mpi_request[i] car il est modifié par Mpi
1569 // mpi_request[i] == MPI_REQUEST_NULL
1570 if (nb_completed_request == MPI_UNDEFINED) // Si aucune requete n'etait valide.
1571 nb_completed_request = 0;
1572 if (is_print_debug)
1573 debug() << "WaitSomeRequest nb_completed=" << nb_completed_request;
1574 }
1575 }
1576 catch(TimeoutException& ex)
1577 {
1578 std::ostringstream ostr;
1579 if (is_non_blocking)
1580 ostr << MpiInfo(eMpiName::Testsome).name();
1581 else
1582 ostr << MpiInfo(eMpiName::Waitsome).name();
1583 ostr << " size=" << size
1584 << " is_non_blocking=" << is_non_blocking;
1585 ex.setAdditionalInfo(ostr.str());
1586 throw;
1587 }
1588
1589 for( int z=0; z<nb_completed_request; ++z ){
1590 int index = completed_requests[z];
1591 if (is_print_debug)
1592 debug() << "Completed my_rank=" << m_comm_rank << " z=" << z
1593 << " index=" << index
1594 << " tag=" << mpi_status[z].MPI_TAG
1595 << " source=" << mpi_status[z].MPI_SOURCE;
1596
1597 indexes[index] = true;
1598 }
1599
1600 bool has_new_request = _handleEndRequests(requests,indexes,mpi_status);
1601 if (has_new_request){
1602 // Si on a de nouvelles requêtes, alors il est possible qu'aucune
1603 // requête n'aie aboutie. En cas de testSome, cela n'est pas grave.
1604 // En cas de waitSome, cela signifie qu'il faut attendre à nouveau.
1605 }
1606 double end_time = MPI_Wtime();
1607 m_stat->add(MpiInfo(eMpiName::Waitsome).name(),end_time-begin_time,size);
1608}
1609
1610/*---------------------------------------------------------------------------*/
1611/*---------------------------------------------------------------------------*/
1612
1613void MpiAdapter::
1614freeRequest(Request& request)
1615{
1616 if (!request.isValid()){
1617 warning() << "MpiAdapter::freeRequest() null request r=" << (MPI_Request)request;
1618 _checkFatalInRequest();
1619 return;
1620 }
1621 {
1622 MpiLock::Section mls(m_mpi_lock);
1623
1624 auto mr = (MPI_Request)request;
1625 _removeRequest(mr);
1626 MPI_Request_free(&mr);
1627 }
1628 request.reset();
1629}
1630
1631/*---------------------------------------------------------------------------*/
1632/*---------------------------------------------------------------------------*/
1633
1634bool MpiAdapter::
1635testRequest(Request& request)
1636{
1637 // Il est autorisé par MPI de faire un test avec une requête nulle.
1638 if (!request.isValid())
1639 return true;
1640
1641 auto mr = (MPI_Request)request;
1642 int is_finished = 0;
1643
1644 {
1645 MpiLock::Section mls(m_mpi_lock);
1646
1647 // Il faut d'abord recuperer l'emplacement de la requete car si elle
1648 // est finie, elle sera automatiquement libérée par MPI lors du test
1649 // et du coup on ne pourra plus la supprimer
1650 RequestSet::Iterator request_iter = m_request_set->findRequest(mr);
1651
1652 m_mpi_prof->test(&mr, &is_finished, (MPI_Status *) MPI_STATUS_IGNORE);
1653 //info() << "** TEST REQUEST r=" << mr << " is_finished=" << is_finished;
1654 if (is_finished!=0){
1655 m_request_set->removeRequest(request_iter);
1656 if (request.hasSubRequest())
1657 ARCCORE_THROW(NotImplementedException,"SubRequest support");
1658 request.reset();
1659 return true;
1660 }
1661 }
1662
1663 return false;
1664}
1665
1666/*---------------------------------------------------------------------------*/
1667/*---------------------------------------------------------------------------*/
1668/*!
1669 * \warning Cette fonction doit etre appelee avec le verrou mpi_lock actif.
1670 */
1671void MpiAdapter::
1672_addRequest(MPI_Request request)
1673{
1674 m_request_set->addRequest(request);
1675}
1676
1677/*---------------------------------------------------------------------------*/
1678/*---------------------------------------------------------------------------*/
1679/*!
1680 * \warning Cette fonction doit etre appelee avec le verrou mpi_lock actif.
1681 */
1682void MpiAdapter::
1683_removeRequest(MPI_Request request)
1684{
1685 m_request_set->removeRequest(request);
1686}
1687
1688/*---------------------------------------------------------------------------*/
1689/*---------------------------------------------------------------------------*/
1690
1691void MpiAdapter::
1692enableDebugRequest(bool enable_debug_request)
1693{
1694 m_stat->enable(enable_debug_request);
1695 //if (!m_enable_debug_request)
1696 //info() << "WARNING: Mpi adpater debug request is disabled (multi-threading)";
1697}
1698
1699/*---------------------------------------------------------------------------*/
1700/*---------------------------------------------------------------------------*/
1701
1702void MpiAdapter::
1703_checkFatalInRequest()
1704{
1705 if (isRequestErrorAreFatal())
1706 ARCCORE_FATAL("Error in requests management");
1707}
1708
1709/*---------------------------------------------------------------------------*/
1710/*---------------------------------------------------------------------------*/
1711
1712void MpiAdapter::
1713setMpiProfiling(IMpiProfiling* mpi_profiling)
1714{
1715 m_mpi_prof = mpi_profiling;
1716}
1717
1718/*---------------------------------------------------------------------------*/
1719/*---------------------------------------------------------------------------*/
1720
1721IMpiProfiling* MpiAdapter::
1722getMpiProfiling() const
1723{
1724 return m_mpi_prof;
1725}
1726
1727/*---------------------------------------------------------------------------*/
1728/*---------------------------------------------------------------------------*/
1729
1730void MpiAdapter::
1731setProfiler(IProfiler* profiler)
1732{
1733 if (!profiler){
1734 m_mpi_prof = nullptr;
1735 return;
1736 }
1737
1738 IMpiProfiling* p = dynamic_cast<IMpiProfiling*>(profiler);
1739 if (!p)
1740 ARCCORE_FATAL("Invalid profiler. Profiler has to implemented interface 'IMpiProfiling'");
1741 m_mpi_prof = p;
1742}
1743
1744/*---------------------------------------------------------------------------*/
1745/*---------------------------------------------------------------------------*/
1746
1747IProfiler* MpiAdapter::
1748profiler() const
1749{
1750 return m_mpi_prof;
1751}
1752
1753/*---------------------------------------------------------------------------*/
1754/*---------------------------------------------------------------------------*/
1755
1756MpiMachineMemoryWindowBaseInternalCreator* MpiAdapter::
1757windowCreator()
1758{
1759 if (m_window_creator == nullptr) {
1760 MPI_Comm_split_type(m_communicator, MPI_COMM_TYPE_SHARED, m_comm_rank, MPI_INFO_NULL, &m_machine_communicator);
1761 MPI_Comm_rank(m_machine_communicator, &m_machine_comm_rank);
1762 MPI_Comm_size(m_machine_communicator, &m_machine_comm_size);
1763 m_window_creator = new MpiMachineMemoryWindowBaseInternalCreator(m_machine_communicator, m_machine_comm_rank, m_machine_comm_size, m_communicator, m_comm_size);
1764 }
1765 return m_window_creator;
1766}
1767
1768/*---------------------------------------------------------------------------*/
1769/*---------------------------------------------------------------------------*/
1770
1771// void* MpiAdapter::
1772// createAllInOneMachineMemoryWindowBase(Integer sizeof_local) const
1773// {
1774// //MPI_Aint offset = sizeof(MPI_Win) + sizeof(Integer);
1775// MPI_Aint offset = sizeof(MPI_Win);
1776//
1777// MPI_Win win;
1778//
1779// MPI_Info win_info;
1780// MPI_Info_create(&win_info);
1781//
1782// MPI_Info_set(win_info, "alloc_shared_noncontig", "false");
1783//
1784// const MPI_Aint new_size = offset + sizeof_local;
1785//
1786// char* my_section;
1787// int error = MPI_Win_allocate_shared(new_size, 1, win_info, m_machine_communicator, &my_section, &win);
1788//
1789// assert(error != MPI_ERR_ARG && "MPI_ERR_ARG");
1790// assert(error != MPI_ERR_COMM && "MPI_ERR_COMM");
1791// assert(error != MPI_ERR_INFO && "MPI_ERR_INFO");
1792// assert(error != MPI_ERR_OTHER && "MPI_ERR_OTHER");
1793// assert(error != MPI_ERR_SIZE && "MPI_ERR_SIZE");
1794//
1795// MPI_Info_free(&win_info);
1796//
1797// memcpy(my_section, &win, sizeof(MPI_Win));
1798// my_section += sizeof(MPI_Win);
1799//
1800// // memcpy(my_section, &sizeof_local, sizeof(Integer));
1801// // my_section += sizeof(Integer);
1802//
1803// return my_section;
1804// }
1805
1806/*---------------------------------------------------------------------------*/
1807/*---------------------------------------------------------------------------*/
1808
1809// void MpiAdapter::
1810// freeAllInOneMachineMemoryWindowBase(void* aio_node_window) const
1811// {
1812// //MPI_Aint offset = sizeof(MPI_Win) + sizeof(Int64);
1813// MPI_Aint offset = sizeof(MPI_Win);
1814//
1815// MPI_Win* win = reinterpret_cast<MPI_Win*>(static_cast<char*>(aio_node_window) - offset);
1816//
1817// MPI_Win win_local;
1818// memcpy(&win_local, win, sizeof(MPI_Win));
1819//
1820// MPI_Win_free(&win_local);
1821// }
1822
1823/*---------------------------------------------------------------------------*/
1824/*---------------------------------------------------------------------------*/
1825
1826} // End namespace Arcane::MessagePassing::Mpi
1827
1828/*---------------------------------------------------------------------------*/
1829/*---------------------------------------------------------------------------*/
Arcane::AbstractArray::empty
bool empty() const
Capacité (nombre d'éléments alloués) du vecteur.
Definition arccore/src/collections/arccore/collections/Array.h:435
Arcane::ArrayView
Vue modifiable d'un tableau d'un type T.
Definition arccore/src/base/arccore/base/ArrayView.h:94
Arcane::ArrayView::size
constexpr Integer size() const noexcept
Retourne la taille du tableau.
Definition arccore/src/base/arccore/base/ArrayView.h:235
Arcane::Array::add
void add(ConstReferenceType val)
Ajoute l'élément val à la fin du tableau.
Definition arccore/src/collections/arccore/collections/Array.h:1170
Arcane::ITraceMng
Interface du gestionnaire de traces.
Definition arccore/src/trace/arccore/trace/ITraceMng.h:156
Arcane::MessagePassing::Mpi::MpiAdapter::RequestSet::findRequest
Iterator findRequest(MPI_Request request)
Vérifie que la requête est dans la liste.
Definition MpiAdapter.cc:116
Arcane::MessagePassing::Mpi::MpiAdapter::RequestSet::m_no_check_request
bool m_no_check_request
Vrai si on vérifie pas les requêtes.
Definition MpiAdapter.cc:218
Arcane::MessagePassing::Mpi::StandaloneMpiMessagePassingMng::create
static MpiMessagePassingMng * create(MPI_Comm comm, bool clean_comm=false)
Créé un gestionnaire associé au communicateur comm.
Definition StandaloneMpiMessagePassingMng.cc:135
Arcane::MessagePassing::Request
Requête d'un message.
Definition Request.h:77
Arcane::Ref
Référence à une instance.
Definition arccore/src/base/arccore/base/Ref.h:143
Arcane::String
Chaîne de caractères unicode.
Definition arccore/src/base/arccore/base/String.h:70
Arcane::TraceAccessor::TraceAccessor
TraceAccessor(ITraceMng *m)
Construit un accesseur via le gestionnaire de trace m.
Definition TraceAccessor.cc:27
Arcane::TraceAccessor::info
TraceMessage info() const
Flot pour un message d'information.
Definition TraceAccessor.cc:101
Arcane::TraceAccessor::error
TraceMessage error() const
Flot pour un message d'erreur.
Definition TraceAccessor.cc:201
Arcane::UniqueArray
Vecteur 1D de données avec sémantique par valeur (style STL).
Definition arccore/src/collections/arccore/collections/Array.h:1844
Arcane::Platform::getStackTraceService
ARCCORE_BASE_EXPORT IStackTraceService * getStackTraceService()
Service utilisé pour obtenir la pile d'appel.
Definition arccore/src/base/arccore/base/PlatformUtils.cc:424
Arcane::Platform::getStackTrace
ARCCORE_BASE_EXPORT String getStackTrace()
Retourne une chaîne de caractere contenant la pile d'appel.
Definition arccore/src/base/arccore/base/PlatformUtils.cc:444
Arcane::Platform::getEnvironmentVariable
ARCCORE_BASE_EXPORT String getEnvironmentVariable(const String &name)
Variable d'environnement du nom name.
Definition arccore/src/base/arccore/base/PlatformUtils.cc:251
Arcane::Int64
std::int64_t Int64
Type entier signé sur 64 bits.
Definition ArccoreGlobal.h:186
Arcane::Integer
Int32 Integer
Type représentant un entier.
Definition ArccoreGlobal.h:240
Arcane::makeRef
auto makeRef(InstanceType *t) -> Ref< InstanceType >
Créé une référence sur un pointeur.
Definition arccore/src/base/arccore/base/Ref.h:356
Arcane::arccoreIsCheck
ARCCORE_BASE_EXPORT bool arccoreIsCheck()
Vrai si on est en mode vérification.
Definition ArccoreGlobal.cc:66
Arcane::Int32
std::int32_t Int32
Type entier signé sur 32 bits.
Definition ArccoreGlobal.h:184