1 /* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "smpi_comm.hpp"
8 #include "smpi_datatype.hpp"
9 #include "smpi_request.hpp"
10 #include "src/smpi/include/smpi_actor.hpp"
12 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(smpi_pmpi);
14 static int getPid(MPI_Comm, int);
15 static int getPid(MPI_Comm comm, int id)
17 simgrid::s4u::ActorPtr actor = comm->group()->actor(id);
18 return (actor == nullptr) ? MPI_UNDEFINED : actor->get_pid();
21 /* PMPI User level calls */
23 int PMPI_Send_init(const void *buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm, MPI_Request * request)
28 if (request == nullptr) {
30 } else if (comm == MPI_COMM_NULL) {
31 retval = MPI_ERR_COMM;
32 } else if (datatype==MPI_DATATYPE_NULL || not datatype->is_valid()) {
33 retval = MPI_ERR_TYPE;
34 } else if (dst == MPI_PROC_NULL) {
37 *request = simgrid::smpi::Request::send_init(buf, count, datatype, dst, tag, comm);
41 if (retval != MPI_SUCCESS && request != nullptr)
42 *request = MPI_REQUEST_NULL;
46 int PMPI_Recv_init(void *buf, int count, MPI_Datatype datatype, int src, int tag, MPI_Comm comm, MPI_Request * request)
51 if (request == nullptr) {
53 } else if (comm == MPI_COMM_NULL) {
54 retval = MPI_ERR_COMM;
55 } else if (datatype==MPI_DATATYPE_NULL || not datatype->is_valid()) {
56 retval = MPI_ERR_TYPE;
57 } else if (src == MPI_PROC_NULL) {
60 *request = simgrid::smpi::Request::recv_init(buf, count, datatype, src, tag, comm);
64 if (retval != MPI_SUCCESS && request != nullptr)
65 *request = MPI_REQUEST_NULL;
69 int PMPI_Rsend_init(const void* buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm,
72 return PMPI_Send_init(buf, count, datatype, dst, tag, comm, request);
75 int PMPI_Ssend_init(const void* buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm, MPI_Request* request)
80 if (request == nullptr) {
82 } else if (comm == MPI_COMM_NULL) {
83 retval = MPI_ERR_COMM;
84 } else if (datatype==MPI_DATATYPE_NULL || not datatype->is_valid()) {
85 retval = MPI_ERR_TYPE;
86 } else if (dst == MPI_PROC_NULL) {
89 *request = simgrid::smpi::Request::ssend_init(buf, count, datatype, dst, tag, comm);
93 if (retval != MPI_SUCCESS && request != nullptr)
94 *request = MPI_REQUEST_NULL;
99 * This function starts a request returned by init functions such as
100 * MPI_Send_init(), MPI_Ssend_init (see above), and friends.
101 * They should already have performed sanity checks.
103 int PMPI_Start(MPI_Request * request)
108 if (request == nullptr || *request == MPI_REQUEST_NULL) {
109 retval = MPI_ERR_REQUEST;
111 MPI_Request req = *request;
112 int my_proc_id = (req->comm() != MPI_COMM_NULL) ? simgrid::s4u::this_actor::get_pid() : -1;
113 TRACE_smpi_comm_in(my_proc_id, __func__,
114 new simgrid::instr::Pt2PtTIData("Start", req->dst(),
117 simgrid::smpi::Datatype::encode(req->type())));
118 if (not TRACE_smpi_view_internals() && req->flags() & MPI_REQ_SEND)
119 TRACE_smpi_send(my_proc_id, my_proc_id, getPid(req->comm(), req->dst()), req->tag(), req->size());
123 if (not TRACE_smpi_view_internals() && req->flags() & MPI_REQ_RECV)
124 TRACE_smpi_recv(getPid(req->comm(), req->src()), my_proc_id, req->tag());
125 retval = MPI_SUCCESS;
126 TRACE_smpi_comm_out(my_proc_id);
132 int PMPI_Startall(int count, MPI_Request * requests)
136 if (requests == nullptr) {
137 retval = MPI_ERR_ARG;
139 retval = MPI_SUCCESS;
140 for (int i = 0; i < count; i++) {
141 if(requests[i] == MPI_REQUEST_NULL) {
142 retval = MPI_ERR_REQUEST;
145 if(retval != MPI_ERR_REQUEST) {
146 int my_proc_id = simgrid::s4u::this_actor::get_pid();
147 TRACE_smpi_comm_in(my_proc_id, __func__, new simgrid::instr::NoOpTIData("Startall"));
148 if (not TRACE_smpi_view_internals())
149 for (int i = 0; i < count; i++) {
150 MPI_Request req = requests[i];
151 if (req->flags() & MPI_REQ_SEND)
152 TRACE_smpi_send(my_proc_id, my_proc_id, getPid(req->comm(), req->dst()), req->tag(), req->size());
155 simgrid::smpi::Request::startall(count, requests);
157 if (not TRACE_smpi_view_internals())
158 for (int i = 0; i < count; i++) {
159 MPI_Request req = requests[i];
160 if (req->flags() & MPI_REQ_RECV)
161 TRACE_smpi_recv(getPid(req->comm(), req->src()), my_proc_id, req->tag());
163 TRACE_smpi_comm_out(my_proc_id);
170 int PMPI_Request_free(MPI_Request * request)
175 if (*request != MPI_REQUEST_NULL) {
176 simgrid::smpi::Request::unref(request);
177 *request = MPI_REQUEST_NULL;
178 retval = MPI_SUCCESS;
184 int PMPI_Irecv(void *buf, int count, MPI_Datatype datatype, int src, int tag, MPI_Comm comm, MPI_Request * request)
190 if (request == nullptr) {
191 retval = MPI_ERR_ARG;
192 } else if (comm == MPI_COMM_NULL) {
193 retval = MPI_ERR_COMM;
194 } else if (src == MPI_PROC_NULL) {
195 *request = MPI_REQUEST_NULL;
196 retval = MPI_SUCCESS;
197 } else if (src!=MPI_ANY_SOURCE && (src >= comm->group()->size() || src <0)){
198 retval = MPI_ERR_RANK;
199 } else if ((count < 0) || (buf==nullptr && count > 0)) {
200 retval = MPI_ERR_COUNT;
201 } else if (datatype==MPI_DATATYPE_NULL || not datatype->is_valid()) {
202 retval = MPI_ERR_TYPE;
203 } else if(tag<0 && tag != MPI_ANY_TAG){
204 retval = MPI_ERR_TAG;
206 int my_proc_id = simgrid::s4u::this_actor::get_pid();
208 TRACE_smpi_comm_in(my_proc_id, __func__,
209 new simgrid::instr::Pt2PtTIData("irecv", src,
210 datatype->is_replayable() ? count : count * datatype->size(),
211 tag, simgrid::smpi::Datatype::encode(datatype)));
213 *request = simgrid::smpi::Request::irecv(buf, count, datatype, src, tag, comm);
214 retval = MPI_SUCCESS;
216 TRACE_smpi_comm_out(my_proc_id);
220 if (retval != MPI_SUCCESS && request != nullptr)
221 *request = MPI_REQUEST_NULL;
226 int PMPI_Isend(const void *buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm, MPI_Request * request)
231 if (request == nullptr) {
232 retval = MPI_ERR_ARG;
233 } else if (comm == MPI_COMM_NULL) {
234 retval = MPI_ERR_COMM;
235 } else if (dst == MPI_PROC_NULL) {
236 *request = MPI_REQUEST_NULL;
237 retval = MPI_SUCCESS;
238 } else if (dst >= comm->group()->size() || dst <0){
239 retval = MPI_ERR_RANK;
240 } else if ((count < 0) || (buf==nullptr && count > 0)) {
241 retval = MPI_ERR_COUNT;
242 } else if (datatype==MPI_DATATYPE_NULL || not datatype->is_valid()) {
243 retval = MPI_ERR_TYPE;
244 } else if(tag<0 && tag != MPI_ANY_TAG){
245 retval = MPI_ERR_TAG;
247 int my_proc_id = simgrid::s4u::this_actor::get_pid();
248 int trace_dst = getPid(comm, dst);
249 TRACE_smpi_comm_in(my_proc_id, __func__,
250 new simgrid::instr::Pt2PtTIData("isend", dst,
251 datatype->is_replayable() ? count : count * datatype->size(),
252 tag, simgrid::smpi::Datatype::encode(datatype)));
254 TRACE_smpi_send(my_proc_id, my_proc_id, trace_dst, tag, count * datatype->size());
256 *request = simgrid::smpi::Request::isend(buf, count, datatype, dst, tag, comm);
257 retval = MPI_SUCCESS;
259 TRACE_smpi_comm_out(my_proc_id);
263 if (retval != MPI_SUCCESS && request!=nullptr)
264 *request = MPI_REQUEST_NULL;
268 int PMPI_Irsend(const void* buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm,
269 MPI_Request* request)
271 return PMPI_Isend(buf, count, datatype, dst, tag, comm, request);
274 int PMPI_Issend(const void* buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm, MPI_Request* request)
279 if (request == nullptr) {
280 retval = MPI_ERR_ARG;
281 } else if (comm == MPI_COMM_NULL) {
282 retval = MPI_ERR_COMM;
283 } else if (dst == MPI_PROC_NULL) {
284 *request = MPI_REQUEST_NULL;
285 retval = MPI_SUCCESS;
286 } else if (dst >= comm->group()->size() || dst <0){
287 retval = MPI_ERR_RANK;
288 } else if ((count < 0)|| (buf==nullptr && count > 0)) {
289 retval = MPI_ERR_COUNT;
290 } else if (datatype==MPI_DATATYPE_NULL || not datatype->is_valid()) {
291 retval = MPI_ERR_TYPE;
292 } else if(tag<0 && tag != MPI_ANY_TAG){
293 retval = MPI_ERR_TAG;
295 int my_proc_id = simgrid::s4u::this_actor::get_pid();
296 int trace_dst = getPid(comm, dst);
297 TRACE_smpi_comm_in(my_proc_id, __func__,
298 new simgrid::instr::Pt2PtTIData("ISsend", dst,
299 datatype->is_replayable() ? count : count * datatype->size(),
300 tag, simgrid::smpi::Datatype::encode(datatype)));
301 TRACE_smpi_send(my_proc_id, my_proc_id, trace_dst, tag, count * datatype->size());
303 *request = simgrid::smpi::Request::issend(buf, count, datatype, dst, tag, comm);
304 retval = MPI_SUCCESS;
306 TRACE_smpi_comm_out(my_proc_id);
310 if (retval != MPI_SUCCESS && request!=nullptr)
311 *request = MPI_REQUEST_NULL;
315 int PMPI_Recv(void *buf, int count, MPI_Datatype datatype, int src, int tag, MPI_Comm comm, MPI_Status * status)
320 if (comm == MPI_COMM_NULL) {
321 retval = MPI_ERR_COMM;
322 } else if (src == MPI_PROC_NULL) {
323 if(status != MPI_STATUS_IGNORE){
324 simgrid::smpi::Status::empty(status);
325 status->MPI_SOURCE = MPI_PROC_NULL;
327 retval = MPI_SUCCESS;
328 } else if (src!=MPI_ANY_SOURCE && (src >= comm->group()->size() || src <0)){
329 retval = MPI_ERR_RANK;
330 } else if ((count < 0) || (buf==nullptr && count > 0)) {
331 retval = MPI_ERR_COUNT;
332 } else if (datatype==MPI_DATATYPE_NULL || not datatype->is_valid()) {
333 retval = MPI_ERR_TYPE;
334 } else if(tag<0 && tag != MPI_ANY_TAG){
335 retval = MPI_ERR_TAG;
337 int my_proc_id = simgrid::s4u::this_actor::get_pid();
338 TRACE_smpi_comm_in(my_proc_id, __func__,
339 new simgrid::instr::Pt2PtTIData("recv", src,
340 datatype->is_replayable() ? count : count * datatype->size(),
341 tag, simgrid::smpi::Datatype::encode(datatype)));
343 simgrid::smpi::Request::recv(buf, count, datatype, src, tag, comm, status);
344 retval = MPI_SUCCESS;
346 // the src may not have been known at the beginning of the recv (MPI_ANY_SOURCE)
348 if (status != MPI_STATUS_IGNORE)
349 src_traced = getPid(comm, status->MPI_SOURCE);
351 src_traced = getPid(comm, src);
352 if (not TRACE_smpi_view_internals()) {
353 TRACE_smpi_recv(src_traced, my_proc_id, tag);
356 TRACE_smpi_comm_out(my_proc_id);
363 int PMPI_Send(const void *buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm)
369 if (comm == MPI_COMM_NULL) {
370 retval = MPI_ERR_COMM;
371 } else if (dst == MPI_PROC_NULL) {
372 retval = MPI_SUCCESS;
373 } else if (dst >= comm->group()->size() || dst <0){
374 retval = MPI_ERR_RANK;
375 } else if ((count < 0) || (buf == nullptr && count > 0)) {
376 retval = MPI_ERR_COUNT;
377 } else if (datatype==MPI_DATATYPE_NULL || not datatype->is_valid()) {
378 retval = MPI_ERR_TYPE;
379 } else if(tag < 0 && tag != MPI_ANY_TAG){
380 retval = MPI_ERR_TAG;
382 int my_proc_id = simgrid::s4u::this_actor::get_pid();
383 int dst_traced = getPid(comm, dst);
384 TRACE_smpi_comm_in(my_proc_id, __func__,
385 new simgrid::instr::Pt2PtTIData("send", dst,
386 datatype->is_replayable() ? count : count * datatype->size(),
387 tag, simgrid::smpi::Datatype::encode(datatype)));
388 if (not TRACE_smpi_view_internals()) {
389 TRACE_smpi_send(my_proc_id, my_proc_id, dst_traced, tag, count * datatype->size());
392 simgrid::smpi::Request::send(buf, count, datatype, dst, tag, comm);
393 retval = MPI_SUCCESS;
395 TRACE_smpi_comm_out(my_proc_id);
402 int PMPI_Rsend(const void* buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm)
404 return PMPI_Send(buf, count, datatype, dst, tag, comm);
407 int PMPI_Bsend(const void* buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm)
413 if (comm == MPI_COMM_NULL) {
414 retval = MPI_ERR_COMM;
415 } else if (dst == MPI_PROC_NULL) {
416 retval = MPI_SUCCESS;
417 } else if (dst >= comm->group()->size() || dst <0){
418 retval = MPI_ERR_RANK;
419 } else if ((count < 0) || (buf == nullptr && count > 0)) {
420 retval = MPI_ERR_COUNT;
421 } else if (datatype==MPI_DATATYPE_NULL || not datatype->is_valid()) {
422 retval = MPI_ERR_TYPE;
423 } else if(tag < 0 && tag != MPI_ANY_TAG){
424 retval = MPI_ERR_TAG;
426 int my_proc_id = simgrid::s4u::this_actor::get_pid();
427 int dst_traced = getPid(comm, dst);
428 int bsend_buf_size = 0;
429 void* bsend_buf = nullptr;
430 smpi_process()->bsend_buffer(&bsend_buf, &bsend_buf_size);
431 int size = datatype->get_extent() * count;
432 if(bsend_buf==nullptr || bsend_buf_size < size + MPI_BSEND_OVERHEAD )
433 return MPI_ERR_BUFFER;
434 TRACE_smpi_comm_in(my_proc_id, __func__,
435 new simgrid::instr::Pt2PtTIData("bsend", dst,
436 datatype->is_replayable() ? count : count * datatype->size(),
437 tag, simgrid::smpi::Datatype::encode(datatype)));
438 if (not TRACE_smpi_view_internals()) {
439 TRACE_smpi_send(my_proc_id, my_proc_id, dst_traced, tag, count * datatype->size());
442 simgrid::smpi::Request::bsend(buf, count, datatype, dst, tag, comm);
443 retval = MPI_SUCCESS;
445 TRACE_smpi_comm_out(my_proc_id);
452 int PMPI_Ibsend(const void* buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm, MPI_Request* request)
457 if (request == nullptr) {
458 retval = MPI_ERR_ARG;
459 } else if (comm == MPI_COMM_NULL) {
460 retval = MPI_ERR_COMM;
461 } else if (dst == MPI_PROC_NULL) {
462 *request = MPI_REQUEST_NULL;
463 retval = MPI_SUCCESS;
464 } else if (dst >= comm->group()->size() || dst <0){
465 retval = MPI_ERR_RANK;
466 } else if ((count < 0) || (buf==nullptr && count > 0)) {
467 retval = MPI_ERR_COUNT;
468 } else if (datatype==MPI_DATATYPE_NULL || not datatype->is_valid()) {
469 retval = MPI_ERR_TYPE;
470 } else if(tag<0 && tag != MPI_ANY_TAG){
471 retval = MPI_ERR_TAG;
473 int my_proc_id = simgrid::s4u::this_actor::get_pid();
474 int trace_dst = getPid(comm, dst);
475 int bsend_buf_size = 0;
476 void* bsend_buf = nullptr;
477 smpi_process()->bsend_buffer(&bsend_buf, &bsend_buf_size);
478 int size = datatype->get_extent() * count;
479 if(bsend_buf==nullptr || bsend_buf_size < size + MPI_BSEND_OVERHEAD )
480 return MPI_ERR_BUFFER;
481 TRACE_smpi_comm_in(my_proc_id, __func__,
482 new simgrid::instr::Pt2PtTIData("ibsend", dst,
483 datatype->is_replayable() ? count : count * datatype->size(),
484 tag, simgrid::smpi::Datatype::encode(datatype)));
486 TRACE_smpi_send(my_proc_id, my_proc_id, trace_dst, tag, count * datatype->size());
488 *request = simgrid::smpi::Request::ibsend(buf, count, datatype, dst, tag, comm);
489 retval = MPI_SUCCESS;
491 TRACE_smpi_comm_out(my_proc_id);
495 if (retval != MPI_SUCCESS && request!=nullptr)
496 *request = MPI_REQUEST_NULL;
500 int PMPI_Bsend_init(const void* buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm, MPI_Request* request)
505 if (request == nullptr) {
506 retval = MPI_ERR_ARG;
507 } else if (comm == MPI_COMM_NULL) {
508 retval = MPI_ERR_COMM;
509 } else if (datatype==MPI_DATATYPE_NULL || not datatype->is_valid()) {
510 retval = MPI_ERR_TYPE;
511 } else if (dst == MPI_PROC_NULL) {
512 retval = MPI_SUCCESS;
514 int bsend_buf_size = 0;
515 void* bsend_buf = nullptr;
516 smpi_process()->bsend_buffer(&bsend_buf, &bsend_buf_size);
517 if( bsend_buf==nullptr || bsend_buf_size < datatype->get_extent() * count + MPI_BSEND_OVERHEAD ) {
518 retval = MPI_ERR_BUFFER;
520 *request = simgrid::smpi::Request::bsend_init(buf, count, datatype, dst, tag, comm);
521 retval = MPI_SUCCESS;
525 if (retval != MPI_SUCCESS && request != nullptr)
526 *request = MPI_REQUEST_NULL;
530 int PMPI_Ssend(const void* buf, int count, MPI_Datatype datatype, int dst, int tag, MPI_Comm comm) {
535 if (comm == MPI_COMM_NULL) {
536 retval = MPI_ERR_COMM;
537 } else if (dst == MPI_PROC_NULL) {
538 retval = MPI_SUCCESS;
539 } else if (dst >= comm->group()->size() || dst <0){
540 retval = MPI_ERR_RANK;
541 } else if ((count < 0) || (buf==nullptr && count > 0)) {
542 retval = MPI_ERR_COUNT;
543 } else if (datatype==MPI_DATATYPE_NULL || not datatype->is_valid()) {
544 retval = MPI_ERR_TYPE;
545 } else if(tag<0 && tag != MPI_ANY_TAG){
546 retval = MPI_ERR_TAG;
548 int my_proc_id = simgrid::s4u::this_actor::get_pid();
549 int dst_traced = getPid(comm, dst);
550 TRACE_smpi_comm_in(my_proc_id, __func__,
551 new simgrid::instr::Pt2PtTIData("Ssend", dst,
552 datatype->is_replayable() ? count : count * datatype->size(),
553 tag, simgrid::smpi::Datatype::encode(datatype)));
554 TRACE_smpi_send(my_proc_id, my_proc_id, dst_traced, tag, count * datatype->size());
556 simgrid::smpi::Request::ssend(buf, count, datatype, dst, tag, comm);
557 retval = MPI_SUCCESS;
559 TRACE_smpi_comm_out(my_proc_id);
566 int PMPI_Sendrecv(const void* sendbuf, int sendcount, MPI_Datatype sendtype, int dst, int sendtag, void* recvbuf,
567 int recvcount, MPI_Datatype recvtype, int src, int recvtag, MPI_Comm comm, MPI_Status* status)
573 if (comm == MPI_COMM_NULL) {
574 retval = MPI_ERR_COMM;
575 } else if (not sendtype->is_valid() || not recvtype->is_valid()) {
576 retval = MPI_ERR_TYPE;
577 } else if (src == MPI_PROC_NULL) {
578 if(status!=MPI_STATUS_IGNORE){
579 simgrid::smpi::Status::empty(status);
580 status->MPI_SOURCE = MPI_PROC_NULL;
582 if(dst != MPI_PROC_NULL)
583 simgrid::smpi::Request::send(sendbuf, sendcount, sendtype, dst, sendtag, comm);
584 retval = MPI_SUCCESS;
585 }else if (dst == MPI_PROC_NULL){
586 simgrid::smpi::Request::recv(recvbuf, recvcount, recvtype, src, recvtag, comm, status);
587 retval = MPI_SUCCESS;
588 }else if (dst >= comm->group()->size() || dst <0 ||
589 (src!=MPI_ANY_SOURCE && (src >= comm->group()->size() || src <0))){
590 retval = MPI_ERR_RANK;
591 } else if ((sendcount < 0 || recvcount<0) ||
592 (sendbuf==nullptr && sendcount > 0) || (recvbuf==nullptr && recvcount>0)) {
593 retval = MPI_ERR_COUNT;
594 } else if((sendtag<0 && sendtag != MPI_ANY_TAG)||(recvtag<0 && recvtag != MPI_ANY_TAG)){
595 retval = MPI_ERR_TAG;
597 int my_proc_id = simgrid::s4u::this_actor::get_pid();
598 int dst_traced = getPid(comm, dst);
599 int src_traced = getPid(comm, src);
601 // FIXME: Hack the way to trace this one
602 std::vector<int>* dst_hack = new std::vector<int>;
603 std::vector<int>* src_hack = new std::vector<int>;
604 dst_hack->push_back(dst_traced);
605 src_hack->push_back(src_traced);
606 TRACE_smpi_comm_in(my_proc_id, __func__,
607 new simgrid::instr::VarCollTIData(
608 "sendRecv", -1, sendtype->is_replayable() ? sendcount : sendcount * sendtype->size(),
609 dst_hack, recvtype->is_replayable() ? recvcount : recvcount * recvtype->size(), src_hack,
610 simgrid::smpi::Datatype::encode(sendtype), simgrid::smpi::Datatype::encode(recvtype)));
612 TRACE_smpi_send(my_proc_id, my_proc_id, dst_traced, sendtag, sendcount * sendtype->size());
614 simgrid::smpi::Request::sendrecv(sendbuf, sendcount, sendtype, dst, sendtag, recvbuf, recvcount, recvtype, src,
615 recvtag, comm, status);
616 retval = MPI_SUCCESS;
618 TRACE_smpi_recv(src_traced, my_proc_id, recvtag);
619 TRACE_smpi_comm_out(my_proc_id);
626 int PMPI_Sendrecv_replace(void* buf, int count, MPI_Datatype datatype, int dst, int sendtag, int src, int recvtag,
627 MPI_Comm comm, MPI_Status* status)
630 if (datatype==MPI_DATATYPE_NULL || not datatype->is_valid()) {
632 } else if (count < 0) {
633 return MPI_ERR_COUNT;
635 int size = datatype->get_extent() * count;
636 void* recvbuf = xbt_new0(char, size);
637 retval = MPI_Sendrecv(buf, count, datatype, dst, sendtag, recvbuf, count, datatype, src, recvtag, comm, status);
638 if(retval==MPI_SUCCESS){
639 simgrid::smpi::Datatype::copy(recvbuf, count, datatype, buf, count, datatype);
646 int PMPI_Test(MPI_Request * request, int *flag, MPI_Status * status)
650 if (request == nullptr || flag == nullptr) {
651 retval = MPI_ERR_ARG;
652 } else if (*request == MPI_REQUEST_NULL) {
653 if (status != MPI_STATUS_IGNORE){
655 simgrid::smpi::Status::empty(status);
657 retval = MPI_SUCCESS;
659 int my_proc_id = ((*request)->comm() != MPI_COMM_NULL) ? simgrid::s4u::this_actor::get_pid() : -1;
661 TRACE_smpi_comm_in(my_proc_id, __func__, new simgrid::instr::NoOpTIData("test"));
663 retval = simgrid::smpi::Request::test(request,status, flag);
665 TRACE_smpi_comm_out(my_proc_id);
671 int PMPI_Testany(int count, MPI_Request requests[], int *index, int *flag, MPI_Status * status)
676 if (index == nullptr || flag == nullptr) {
677 retval = MPI_ERR_ARG;
679 int my_proc_id = simgrid::s4u::this_actor::get_pid();
680 TRACE_smpi_comm_in(my_proc_id, __func__, new simgrid::instr::NoOpTIData("testany"));
681 retval = simgrid::smpi::Request::testany(count, requests, index, flag, status);
682 TRACE_smpi_comm_out(my_proc_id);
688 int PMPI_Testall(int count, MPI_Request* requests, int* flag, MPI_Status* statuses)
693 if (flag == nullptr) {
694 retval = MPI_ERR_ARG;
696 int my_proc_id = simgrid::s4u::this_actor::get_pid();
697 TRACE_smpi_comm_in(my_proc_id, __func__, new simgrid::instr::NoOpTIData("testall"));
698 retval = simgrid::smpi::Request::testall(count, requests, flag, statuses);
699 TRACE_smpi_comm_out(my_proc_id);
705 int PMPI_Testsome(int incount, MPI_Request requests[], int* outcount, int* indices, MPI_Status status[])
710 if (outcount == nullptr) {
711 retval = MPI_ERR_ARG;
713 int my_proc_id = simgrid::s4u::this_actor::get_pid();
714 TRACE_smpi_comm_in(my_proc_id, __func__, new simgrid::instr::NoOpTIData("testsome"));
715 retval = simgrid::smpi::Request::testsome(incount, requests, outcount, indices, status);
716 TRACE_smpi_comm_out(my_proc_id);
722 int PMPI_Probe(int source, int tag, MPI_Comm comm, MPI_Status* status) {
726 if (comm == MPI_COMM_NULL) {
727 retval = MPI_ERR_COMM;
728 } else if (source == MPI_PROC_NULL) {
729 if (status != MPI_STATUS_IGNORE){
730 simgrid::smpi::Status::empty(status);
731 status->MPI_SOURCE = MPI_PROC_NULL;
733 retval = MPI_SUCCESS;
735 simgrid::smpi::Request::probe(source, tag, comm, status);
736 retval = MPI_SUCCESS;
742 int PMPI_Iprobe(int source, int tag, MPI_Comm comm, int* flag, MPI_Status* status) {
746 if (flag == nullptr) {
747 retval = MPI_ERR_ARG;
748 } else if (comm == MPI_COMM_NULL) {
749 retval = MPI_ERR_COMM;
750 } else if (source == MPI_PROC_NULL) {
752 if (status != MPI_STATUS_IGNORE){
753 simgrid::smpi::Status::empty(status);
754 status->MPI_SOURCE = MPI_PROC_NULL;
756 retval = MPI_SUCCESS;
758 simgrid::smpi::Request::iprobe(source, tag, comm, flag, status);
759 retval = MPI_SUCCESS;
765 // TODO: cheinrich: Move declaration to other file? Rename this function - it's used for PMPI_Wait*?
766 static void trace_smpi_recv_helper(MPI_Request* request, MPI_Status* status);
767 static void trace_smpi_recv_helper(MPI_Request* request, MPI_Status* status)
769 MPI_Request req = *request;
770 if (req != MPI_REQUEST_NULL) { // Received requests become null
771 int src_traced = req->src();
772 // the src may not have been known at the beginning of the recv (MPI_ANY_SOURCE)
773 int dst_traced = req->dst();
774 if (req->flags() & MPI_REQ_RECV) { // Is this request a wait for RECV?
775 if (src_traced == MPI_ANY_SOURCE)
776 src_traced = (status != MPI_STATUS_IGNORE) ? req->comm()->group()->rank(status->MPI_SOURCE) : req->src();
777 TRACE_smpi_recv(src_traced, dst_traced, req->tag());
782 int PMPI_Wait(MPI_Request * request, MPI_Status * status)
788 simgrid::smpi::Status::empty(status);
790 if (request == nullptr) {
791 retval = MPI_ERR_ARG;
792 } else if (*request == MPI_REQUEST_NULL) {
793 retval = MPI_SUCCESS;
795 // for tracing, save the handle which might get overridden before we can use the helper on it
796 MPI_Request savedreq = *request;
797 if (savedreq != MPI_REQUEST_NULL && not(savedreq->flags() & MPI_REQ_FINISHED)
798 && not(savedreq->flags() & MPI_REQ_GENERALIZED))
799 savedreq->ref();//don't erase te handle in Request::wait, we'll need it later
801 savedreq = MPI_REQUEST_NULL;
803 int my_proc_id = (*request)->comm() != MPI_COMM_NULL
804 ? simgrid::s4u::this_actor::get_pid()
805 : -1; // TODO: cheinrich: Check if this correct or if it should be MPI_UNDEFINED
806 TRACE_smpi_comm_in(my_proc_id, __func__,
807 new simgrid::instr::WaitTIData((*request)->src(), (*request)->dst(), (*request)->tag()));
809 retval = simgrid::smpi::Request::wait(request, status);
811 //the src may not have been known at the beginning of the recv (MPI_ANY_SOURCE)
812 TRACE_smpi_comm_out(my_proc_id);
813 trace_smpi_recv_helper(&savedreq, status);
814 if (savedreq != MPI_REQUEST_NULL)
815 simgrid::smpi::Request::unref(&savedreq);
822 int PMPI_Waitany(int count, MPI_Request requests[], int *index, MPI_Status * status)
824 if (index == nullptr)
831 // for tracing, save the handles which might get overridden before we can use the helper on it
832 std::vector<MPI_Request> savedreqs(requests, requests + count);
833 for (MPI_Request& req : savedreqs) {
834 if (req != MPI_REQUEST_NULL && not(req->flags() & MPI_REQ_FINISHED))
837 req = MPI_REQUEST_NULL;
840 int rank_traced = simgrid::s4u::this_actor::get_pid(); // FIXME: In PMPI_Wait, we check if the comm is null?
841 TRACE_smpi_comm_in(rank_traced, __func__, new simgrid::instr::CpuTIData("waitAny", count));
843 *index = simgrid::smpi::Request::waitany(count, requests, status);
845 if(*index!=MPI_UNDEFINED){
846 trace_smpi_recv_helper(&savedreqs[*index], status);
847 TRACE_smpi_comm_out(rank_traced);
850 for (MPI_Request& req : savedreqs)
851 if (req != MPI_REQUEST_NULL)
852 simgrid::smpi::Request::unref(&req);
858 int PMPI_Waitall(int count, MPI_Request requests[], MPI_Status status[])
862 // for tracing, save the handles which might get overridden before we can use the helper on it
863 std::vector<MPI_Request> savedreqs(requests, requests + count);
864 for (MPI_Request& req : savedreqs) {
865 if (req != MPI_REQUEST_NULL && not(req->flags() & MPI_REQ_FINISHED))
868 req = MPI_REQUEST_NULL;
871 int rank_traced = simgrid::s4u::this_actor::get_pid(); // FIXME: In PMPI_Wait, we check if the comm is null?
872 TRACE_smpi_comm_in(rank_traced, __func__, new simgrid::instr::CpuTIData("waitall", count));
874 int retval = simgrid::smpi::Request::waitall(count, requests, status);
876 for (int i = 0; i < count; i++) {
877 trace_smpi_recv_helper(&savedreqs[i], status!=MPI_STATUSES_IGNORE ? &status[i]: MPI_STATUS_IGNORE);
879 TRACE_smpi_comm_out(rank_traced);
881 for (MPI_Request& req : savedreqs)
882 if (req != MPI_REQUEST_NULL)
883 simgrid::smpi::Request::unref(&req);
889 int PMPI_Waitsome(int incount, MPI_Request requests[], int *outcount, int *indices, MPI_Status status[])
894 if (outcount == nullptr) {
895 retval = MPI_ERR_ARG;
897 *outcount = simgrid::smpi::Request::waitsome(incount, requests, indices, status);
898 retval = MPI_SUCCESS;
904 int PMPI_Cancel(MPI_Request* request)
909 if (*request == MPI_REQUEST_NULL) {
910 retval = MPI_ERR_REQUEST;
912 (*request)->cancel();
913 retval = MPI_SUCCESS;
919 int PMPI_Test_cancelled(const MPI_Status* status, int* flag){
920 if(status==MPI_STATUS_IGNORE){
924 *flag=simgrid::smpi::Status::cancelled(status);
928 int PMPI_Status_set_cancelled(MPI_Status* status, int flag){
929 if(status==MPI_STATUS_IGNORE){
932 simgrid::smpi::Status::set_cancelled(status,flag);
936 int PMPI_Status_set_elements(MPI_Status* status, MPI_Datatype datatype, int count){
937 if(status==MPI_STATUS_IGNORE){
940 simgrid::smpi::Status::set_elements(status,datatype, count);
944 int PMPI_Grequest_start( MPI_Grequest_query_function *query_fn, MPI_Grequest_free_function *free_fn, MPI_Grequest_cancel_function *cancel_fn, void *extra_state, MPI_Request *request){
945 return simgrid::smpi::Request::grequest_start(query_fn, free_fn,cancel_fn, extra_state, request);
948 int PMPI_Grequest_complete( MPI_Request request){
949 return simgrid::smpi::Request::grequest_complete(request);
952 int PMPI_Request_get_status( MPI_Request request, int *flag, MPI_Status *status){
953 if(request==MPI_REQUEST_NULL){
955 simgrid::smpi::Status::empty(status);
957 } else if (flag==NULL || status ==NULL){
960 return simgrid::smpi::Request::get_status(request,flag,status);
963 MPI_Request PMPI_Request_f2c(MPI_Fint request){
965 return MPI_REQUEST_NULL;
966 return static_cast<MPI_Request>(simgrid::smpi::Request::f2c(request));
969 MPI_Fint PMPI_Request_c2f(MPI_Request request) {
970 if(request==MPI_REQUEST_NULL)
972 return request->c2f();