1 /* Copyright (c) 2007-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
9 #include "smpi_mpi_dt_private.h"
11 #include "src/mc/mc_record.h"
12 #include "xbt/replay.h"
13 #include "surf/surf.h"
14 #include "src/simix/smx_private.h"
15 #include "simgrid/sg_config.h"
16 #include "src/mc/mc_replay.h"
17 #include "src/msg/msg_private.h"
18 #include "src/simix/SynchroComm.hpp"
21 #include <float.h> /* DBL_MAX */
26 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_kernel, smpi, "Logging specific to SMPI (kernel)");
28 typedef struct s_smpi_process_data {
32 smx_mailbox_t mailbox;
33 smx_mailbox_t mailbox_small;
34 xbt_mutex_t mailboxes_mutex;
39 void *data; /* user data */
42 int sampling; /* inside an SMPI_SAMPLE_ block? */
44 int replaying; /* is the process replaying a trace */
45 xbt_bar_t finalization_barrier;
47 smpi_trace_call_location_t* trace_call_loc;
48 } s_smpi_process_data_t;
50 static smpi_process_data_t *process_data = NULL;
51 int process_count = 0;
52 int smpi_universe_size = 0;
53 int* index_to_process_data = NULL;
54 extern double smpi_total_benched_time;
55 xbt_os_timer_t global_timer;
56 MPI_Comm MPI_COMM_WORLD = MPI_COMM_UNINITIALIZED;
57 MPI_Errhandler *MPI_ERRORS_RETURN = NULL;
58 MPI_Errhandler *MPI_ERRORS_ARE_FATAL = NULL;
59 MPI_Errhandler *MPI_ERRHANDLER_NULL = NULL;
61 #define MAILBOX_NAME_MAXLEN (5 + sizeof(int) * 2 + 1)
63 static char *get_mailbox_name(char *str, int index)
65 snprintf(str, MAILBOX_NAME_MAXLEN, "SMPI-%0*x", (int) (sizeof(int) * 2), index);
69 static char *get_mailbox_name_small(char *str, int index)
71 snprintf(str, MAILBOX_NAME_MAXLEN, "small%0*x", (int) (sizeof(int) * 2), index);
75 void smpi_process_init(int *argc, char ***argv)
78 smpi_process_data_t data;
82 proc = SIMIX_process_self();
83 //FIXME: dirty cleanup method to avoid using msg cleanup functions on these processes when using MSG+SMPI
84 SIMIX_process_set_cleanup_function(proc, MSG_process_cleanup_from_SIMIX);
85 char* instance_id = (*argv)[1];
86 int rank = xbt_str_parse_int((*argv)[2], "Invalid rank: %s");
87 index = smpi_process_index_of_smx_process(proc);
89 if(!index_to_process_data){
90 index_to_process_data=(int*)xbt_malloc(SIMIX_process_count()*sizeof(int));
93 if(smpi_privatize_global_variables){
94 /* Now using segment index of the process */
95 index = proc->segment_index;
96 /* Done at the process's creation */
97 SMPI_switch_data_segment(index);
100 MPI_Comm* temp_comm_world;
102 smpi_deployment_register_process(instance_id, rank, index, &temp_comm_world, &temp_bar);
103 data = smpi_process_remote_data(index);
104 data->comm_world = temp_comm_world;
105 if(temp_bar != NULL) data->finalization_barrier = temp_bar;
107 data->instance_id = instance_id;
109 //xbt_free(simcall_process_get_data(proc));
111 simdata_process_t simdata = static_cast<simdata_process_t>(simcall_process_get_data(proc));
112 simdata->data = data;
116 memmove(&(*argv)[0], &(*argv)[2], sizeof(char *) * (*argc - 2));
117 (*argv)[(*argc) - 1] = NULL;
118 (*argv)[(*argc) - 2] = NULL;
123 // set the process attached to the mailbox
124 simcall_mbox_set_receiver(data->mailbox_small, proc);
125 XBT_DEBUG("<%d> New process in the game: %p", index, proc);
127 xbt_assert(smpi_process_data(),
128 "smpi_process_data() returned NULL. You probably gave a NULL parameter to MPI_Init. Although it's required by "
129 "MPI-2, this is currently not supported by SMPI.");
132 void smpi_process_destroy(void)
134 int index = smpi_process_index();
135 if(smpi_privatize_global_variables){
136 smpi_switch_data_segment(index);
138 process_data[index_to_process_data[index]]->state = SMPI_FINALIZED;
139 XBT_DEBUG("<%d> Process left the game", index);
142 /** @brief Prepares the current process for termination. */
143 void smpi_process_finalize(void)
145 // This leads to an explosion of the search graph which cannot be reduced:
146 if(MC_is_active() || MC_record_replay_is_active())
149 int index = smpi_process_index();
150 // wait for all pending asynchronous comms to finish
151 xbt_barrier_wait(process_data[index_to_process_data[index]]->finalization_barrier);
154 /** @brief Check if a process is finalized */
155 int smpi_process_finalized()
157 int index = smpi_process_index();
158 if (index != MPI_UNDEFINED)
159 return (process_data[index_to_process_data[index]]->state == SMPI_FINALIZED);
164 /** @brief Check if a process is initialized */
165 int smpi_process_initialized(void)
167 if (!index_to_process_data){
170 int index = smpi_process_index();
171 return ((index != MPI_UNDEFINED) && (process_data[index_to_process_data[index]]->state == SMPI_INITIALIZED));
175 /** @brief Mark a process as initialized (=MPI_Init called) */
176 void smpi_process_mark_as_initialized(void)
178 int index = smpi_process_index();
179 if ((index != MPI_UNDEFINED) && (process_data[index_to_process_data[index]]->state != SMPI_FINALIZED))
180 process_data[index_to_process_data[index]]->state = SMPI_INITIALIZED;
183 void smpi_process_set_replaying(int value){
184 int index = smpi_process_index();
185 if ((index != MPI_UNDEFINED) && (process_data[index_to_process_data[index]]->state != SMPI_FINALIZED))
186 process_data[index_to_process_data[index]]->replaying = value;
189 int smpi_process_get_replaying(){
190 int index = smpi_process_index();
191 if (index != MPI_UNDEFINED)
192 return process_data[index_to_process_data[index]]->replaying;
193 else return _xbt_replay_is_active();
196 int smpi_global_size(void)
198 char *value = getenv("SMPI_GLOBAL_SIZE");
199 xbt_assert(value,"Please set env var SMPI_GLOBAL_SIZE to the expected number of processes.");
201 return xbt_str_parse_int(value, "SMPI_GLOBAL_SIZE contains a non-numerical value: %s");
204 smpi_process_data_t smpi_process_data(void)
206 simdata_process_t simdata = static_cast<simdata_process_t>(SIMIX_process_self_get_data());
207 return static_cast<smpi_process_data_t>(simdata->data);
210 smpi_process_data_t smpi_process_remote_data(int index)
212 return process_data[index_to_process_data[index]];
215 void smpi_process_set_user_data(void *data)
217 smpi_process_data_t process_data = smpi_process_data();
218 process_data->data = data;
221 void *smpi_process_get_user_data()
223 smpi_process_data_t process_data = smpi_process_data();
224 return process_data->data;
227 int smpi_process_count(void)
229 return process_count;
233 * \brief Returns a structure that stores the location (filename + linenumber)
234 * of the last calls to MPI_* functions.
236 * \see smpi_trace_set_call_location
238 smpi_trace_call_location_t* smpi_process_get_call_location(void)
240 smpi_process_data_t process_data = smpi_process_data();
241 return process_data->trace_call_loc;
244 int smpi_process_index(void)
246 smpi_process_data_t data = smpi_process_data();
247 //return -1 if not initialized
248 return data ? data->index : MPI_UNDEFINED;
251 MPI_Comm smpi_process_comm_world(void)
253 smpi_process_data_t data = smpi_process_data();
254 //return MPI_COMM_NULL if not initialized
255 return data ? *data->comm_world : MPI_COMM_NULL;
258 smx_mailbox_t smpi_process_mailbox(void)
260 smpi_process_data_t data = smpi_process_data();
261 return data->mailbox;
264 smx_mailbox_t smpi_process_mailbox_small(void)
266 smpi_process_data_t data = smpi_process_data();
267 return data->mailbox_small;
270 xbt_mutex_t smpi_process_mailboxes_mutex(void)
272 smpi_process_data_t data = smpi_process_data();
273 return data->mailboxes_mutex;
276 smx_mailbox_t smpi_process_remote_mailbox(int index)
278 smpi_process_data_t data = smpi_process_remote_data(index);
279 return data->mailbox;
282 smx_mailbox_t smpi_process_remote_mailbox_small(int index)
284 smpi_process_data_t data = smpi_process_remote_data(index);
285 return data->mailbox_small;
288 xbt_mutex_t smpi_process_remote_mailboxes_mutex(int index)
290 smpi_process_data_t data = smpi_process_remote_data(index);
291 return data->mailboxes_mutex;
294 xbt_os_timer_t smpi_process_timer(void)
296 smpi_process_data_t data = smpi_process_data();
300 void smpi_process_simulated_start(void)
302 smpi_process_data_t data = smpi_process_data();
303 data->simulated = SIMIX_get_clock();
306 double smpi_process_simulated_elapsed(void)
308 smpi_process_data_t data = smpi_process_data();
309 return SIMIX_get_clock() - data->simulated;
312 MPI_Comm smpi_process_comm_self(void)
314 smpi_process_data_t data = smpi_process_data();
315 if(data->comm_self==MPI_COMM_NULL){
316 MPI_Group group = smpi_group_new(1);
317 data->comm_self = smpi_comm_new(group, NULL);
318 smpi_group_set_mapping(group, smpi_process_index(), 0);
321 return data->comm_self;
324 MPI_Comm smpi_process_get_comm_intra(void)
326 smpi_process_data_t data = smpi_process_data();
327 return data->comm_intra;
330 void smpi_process_set_comm_intra(MPI_Comm comm)
332 smpi_process_data_t data = smpi_process_data();
333 data->comm_intra = comm;
336 void smpi_process_set_sampling(int s)
338 smpi_process_data_t data = smpi_process_data();
342 int smpi_process_get_sampling(void)
344 smpi_process_data_t data = smpi_process_data();
345 return data->sampling;
348 void print_request(const char *message, MPI_Request request)
350 XBT_VERB("%s request %p [buf = %p, size = %zu, src = %d, dst = %d, tag = %d, flags = %x]",
351 message, request, request->buf, request->size, request->src, request->dst, request->tag, request->flags);
354 void smpi_comm_copy_buffer_callback(smx_synchro_t synchro, void *buff, size_t buff_size)
356 XBT_DEBUG("Copy the data over");
358 simgrid::simix::Comm *comm = dynamic_cast<simgrid::simix::Comm*>(synchro);
360 if((smpi_privatize_global_variables) && ((char*)buff >= smpi_start_data_exe)
361 && ((char*)buff < smpi_start_data_exe + smpi_size_data_exe )
363 XBT_DEBUG("Privatization : We are copying from a zone inside global memory... Saving data to temp buffer !");
366 smpi_switch_data_segment(((smpi_process_data_t)(((simdata_process_t)SIMIX_process_get_data(comm->src_proc))->data))->index);
367 tmpbuff = (void*)xbt_malloc(buff_size);
368 memcpy(tmpbuff, buff, buff_size);
371 if((smpi_privatize_global_variables) && ((char*)comm->dst_buff >= smpi_start_data_exe)
372 && ((char*)comm->dst_buff < smpi_start_data_exe + smpi_size_data_exe )){
373 XBT_DEBUG("Privatization : We are copying to a zone inside global memory - Switch data segment");
374 smpi_switch_data_segment(((smpi_process_data_t)(((simdata_process_t)SIMIX_process_get_data(comm->dst_proc))->data))->index);
377 memcpy(comm->dst_buff, tmpbuff, buff_size);
378 if (comm->detached) {
379 // if this is a detached send, the source buffer was duplicated by SMPI
380 // sender to make the original buffer available to the application ASAP
382 //It seems that the request is used after the call there this should be free somewhere else but where???
383 //xbt_free(comm->comm.src_data);// inside SMPI the request is kept inside the user data and should be free
384 comm->src_buff = NULL;
387 if(tmpbuff!=buff)xbt_free(tmpbuff);
390 void smpi_comm_null_copy_buffer_callback(smx_synchro_t comm, void *buff, size_t buff_size)
395 static void smpi_check_options(){
396 //check correctness of MPI parameters
398 xbt_assert(xbt_cfg_get_int("smpi/async-small-thresh") <= xbt_cfg_get_int("smpi/send-is-detached-thresh"));
400 if (xbt_cfg_is_default_value("smpi/running-power")) {
401 XBT_INFO("You did not set the power of the host running the simulation. "
402 "The timings will certainly not be accurate. "
403 "Use the option \"--cfg=smpi/running-power:<flops>\" to set its value."
404 "Check http://simgrid.org/simgrid/latest/doc/options.html#options_smpi_bench for more information.");
408 int smpi_enabled(void) {
409 return process_data != NULL;
412 void smpi_global_init(void)
416 char name[MAILBOX_NAME_MAXLEN];
419 if (!MC_is_active()) {
420 global_timer = xbt_os_timer_new();
421 xbt_os_walltimer_start(global_timer);
423 if (process_count == 0){
424 process_count = SIMIX_process_count();
427 smpi_universe_size = process_count;
428 process_data = xbt_new0(smpi_process_data_t, process_count);
429 for (i = 0; i < process_count; i++) {
430 process_data[i] = xbt_new(s_smpi_process_data_t, 1);
431 //process_data[i]->index = i;
432 process_data[i]->argc = NULL;
433 process_data[i]->argv = NULL;
434 process_data[i]->mailbox = simcall_mbox_create(get_mailbox_name(name, i));
435 process_data[i]->mailbox_small = simcall_mbox_create(get_mailbox_name_small(name, i));
436 process_data[i]->mailboxes_mutex = xbt_mutex_init();
437 process_data[i]->timer = xbt_os_timer_new();
439 MC_ignore_heap(process_data[i]->timer, xbt_os_timer_size());
440 process_data[i]->comm_self = MPI_COMM_NULL;
441 process_data[i]->comm_intra = MPI_COMM_NULL;
442 process_data[i]->comm_world = NULL;
443 process_data[i]->state = SMPI_UNINITIALIZED;
444 process_data[i]->sampling = 0;
445 process_data[i]->finalization_barrier = NULL;
446 process_data[i]->return_value = 0;
448 //if the process was launched through smpirun script we generate a global mpi_comm_world
449 //if not, we let MPI_COMM_NULL, and the comm world will be private to each mpi instance
451 group = smpi_group_new(process_count);
452 MPI_COMM_WORLD = smpi_comm_new(group, NULL);
453 MPI_Attr_put(MPI_COMM_WORLD, MPI_UNIVERSE_SIZE, (void *)(MPI_Aint)process_count);
454 xbt_bar_t bar=xbt_barrier_init(process_count);
456 for (i = 0; i < process_count; i++) {
457 smpi_group_set_mapping(group, i, i);
458 process_data[i]->finalization_barrier = bar;
463 void smpi_global_destroy(void)
465 int count = smpi_process_count();
468 smpi_bench_destroy();
469 if (MPI_COMM_WORLD != MPI_COMM_UNINITIALIZED){
470 while (smpi_group_unuse(smpi_comm_group(MPI_COMM_WORLD)) > 0);
471 xbt_barrier_destroy(process_data[0]->finalization_barrier);
473 smpi_deployment_cleanup_instances();
475 for (i = 0; i < count; i++) {
476 if(process_data[i]->comm_self!=MPI_COMM_NULL){
477 smpi_comm_destroy(process_data[i]->comm_self);
479 if(process_data[i]->comm_intra!=MPI_COMM_NULL){
480 smpi_comm_destroy(process_data[i]->comm_intra);
482 xbt_os_timer_free(process_data[i]->timer);
483 xbt_mutex_destroy(process_data[i]->mailboxes_mutex);
484 xbt_free(process_data[i]);
486 xbt_free(process_data);
489 if (MPI_COMM_WORLD != MPI_COMM_UNINITIALIZED){
490 smpi_comm_cleanup_smp(MPI_COMM_WORLD);
491 smpi_comm_cleanup_attributes(MPI_COMM_WORLD);
492 if(smpi_coll_cleanup_callback!=NULL)
493 smpi_coll_cleanup_callback();
494 xbt_free(MPI_COMM_WORLD);
497 MPI_COMM_WORLD = MPI_COMM_NULL;
499 if (!MC_is_active()) {
500 xbt_os_timer_free(global_timer);
503 xbt_free(index_to_process_data);
504 if(smpi_privatize_global_variables)
505 smpi_destroy_global_memory_segments();
511 void __attribute__ ((weak)) user_main_()
513 xbt_die("Should not be in this smpi_simulated_main");
517 int __attribute__ ((weak)) smpi_simulated_main_(int argc, char **argv)
519 smpi_process_init(&argc, &argv);
524 inline static int smpi_main_wrapper(int argc, char **argv){
525 int ret = smpi_simulated_main_(argc,argv);
527 XBT_WARN("SMPI process did not return 0. Return value : %d", ret);
528 smpi_process_data()->return_value=ret;
533 int __attribute__ ((weak)) main(int argc, char **argv)
535 return smpi_main(smpi_main_wrapper, argc, argv);
541 static void smpi_init_logs(){
543 /* Connect log categories. See xbt/log.c */
545 XBT_LOG_CONNECT(smpi); /* Keep this line as soon as possible in this function: xbt_log_appender_file.c depends on it
546 DO NOT connect this in XBT or so, or it will be useless to xbt_log_appender_file.c */
547 XBT_LOG_CONNECT(instr_smpi);
548 XBT_LOG_CONNECT(smpi_base);
549 XBT_LOG_CONNECT(smpi_bench);
550 XBT_LOG_CONNECT(smpi_coll);
551 XBT_LOG_CONNECT(smpi_colls);
552 XBT_LOG_CONNECT(smpi_comm);
553 XBT_LOG_CONNECT(smpi_dvfs);
554 XBT_LOG_CONNECT(smpi_group);
555 XBT_LOG_CONNECT(smpi_kernel);
556 XBT_LOG_CONNECT(smpi_mpi);
557 XBT_LOG_CONNECT(smpi_mpi_dt);
558 XBT_LOG_CONNECT(smpi_pmpi);
559 XBT_LOG_CONNECT(smpi_replay);
560 XBT_LOG_CONNECT(smpi_rma);
564 static void smpi_init_options(){
565 int gather_id = find_coll_description(mpi_coll_gather_description, xbt_cfg_get_string("smpi/gather"),"gather");
566 mpi_coll_gather_fun = (int (*)(void *, int, MPI_Datatype, void *, int, MPI_Datatype, int, MPI_Comm))
567 mpi_coll_gather_description[gather_id].coll;
569 int allgather_id = find_coll_description(mpi_coll_allgather_description,
570 xbt_cfg_get_string("smpi/allgather"),"allgather");
571 mpi_coll_allgather_fun = (int (*)(void *, int, MPI_Datatype, void *, int, MPI_Datatype, MPI_Comm))
572 mpi_coll_allgather_description[allgather_id].coll;
574 int allgatherv_id = find_coll_description(mpi_coll_allgatherv_description,
575 xbt_cfg_get_string("smpi/allgatherv"),"allgatherv");
576 mpi_coll_allgatherv_fun = (int (*)(void *, int, MPI_Datatype, void *, int *, int *, MPI_Datatype, MPI_Comm))
577 mpi_coll_allgatherv_description[allgatherv_id].coll;
579 int allreduce_id = find_coll_description(mpi_coll_allreduce_description,
580 xbt_cfg_get_string("smpi/allreduce"),"allreduce");
581 mpi_coll_allreduce_fun = (int (*)(void *sbuf, void *rbuf, int rcount, MPI_Datatype dtype, MPI_Op op, MPI_Comm comm))
582 mpi_coll_allreduce_description[allreduce_id].coll;
584 int alltoall_id = find_coll_description(mpi_coll_alltoall_description,
585 xbt_cfg_get_string("smpi/alltoall"),"alltoall");
586 mpi_coll_alltoall_fun = (int (*)(void *, int, MPI_Datatype, void *, int, MPI_Datatype, MPI_Comm))
587 mpi_coll_alltoall_description[alltoall_id].coll;
589 int alltoallv_id = find_coll_description(mpi_coll_alltoallv_description,
590 xbt_cfg_get_string("smpi/alltoallv"),"alltoallv");
591 mpi_coll_alltoallv_fun = (int (*)(void *, int *, int *, MPI_Datatype, void *, int *, int *, MPI_Datatype, MPI_Comm))
592 mpi_coll_alltoallv_description[alltoallv_id].coll;
594 int bcast_id = find_coll_description(mpi_coll_bcast_description, xbt_cfg_get_string("smpi/bcast"),"bcast");
595 mpi_coll_bcast_fun = (int (*)(void *buf, int count, MPI_Datatype datatype, int root, MPI_Comm com))
596 mpi_coll_bcast_description[bcast_id].coll;
598 int reduce_id = find_coll_description(mpi_coll_reduce_description, xbt_cfg_get_string("smpi/reduce"),"reduce");
599 mpi_coll_reduce_fun = (int (*)(void *buf, void *rbuf, int count, MPI_Datatype datatype, MPI_Op op, int root,
600 MPI_Comm comm)) mpi_coll_reduce_description[reduce_id].coll;
602 int reduce_scatter_id =
603 find_coll_description(mpi_coll_reduce_scatter_description,
604 xbt_cfg_get_string("smpi/reduce-scatter"),"reduce_scatter");
605 mpi_coll_reduce_scatter_fun = (int (*)(void *sbuf, void *rbuf, int *rcounts,MPI_Datatype dtype, MPI_Op op,
606 MPI_Comm comm)) mpi_coll_reduce_scatter_description[reduce_scatter_id].coll;
608 int scatter_id = find_coll_description(mpi_coll_scatter_description, xbt_cfg_get_string("smpi/scatter"),"scatter");
609 mpi_coll_scatter_fun = (int (*)(void *sendbuf, int sendcount, MPI_Datatype sendtype, void *recvbuf,
610 int recvcount, MPI_Datatype recvtype, int root, MPI_Comm comm))
611 mpi_coll_scatter_description[scatter_id].coll;
613 int barrier_id = find_coll_description(mpi_coll_barrier_description, xbt_cfg_get_string("smpi/barrier"),"barrier");
614 mpi_coll_barrier_fun = (int (*)(MPI_Comm comm)) mpi_coll_barrier_description[barrier_id].coll;
616 smpi_coll_cleanup_callback=NULL;
617 smpi_cpu_threshold = xbt_cfg_get_double("smpi/cpu-threshold");
618 smpi_running_power = xbt_cfg_get_double("smpi/running-power");
619 smpi_privatize_global_variables = xbt_cfg_get_boolean("smpi/privatize-global-variables");
620 if (smpi_cpu_threshold < 0)
621 smpi_cpu_threshold = DBL_MAX;
624 int smpi_main(int (*realmain) (int argc, char *argv[]), int argc, char *argv[])
626 srand(SMPI_RAND_SEED);
628 if (getenv("SMPI_PRETEND_CC") != NULL) {
629 /* Hack to ensure that smpicc can pretend to be a simple compiler. Particularly handy to pass it to the
630 * configuration tools */
635 TRACE_global_init(&argc, argv);
636 TRACE_add_start_function(TRACE_smpi_alloc);
637 TRACE_add_end_function(TRACE_smpi_release);
639 SIMIX_global_init(&argc, argv);
640 MSG_init(&argc,argv);
642 SMPI_switch_data_segment = smpi_switch_data_segment;
646 // parse the platform file: get the host list
647 SIMIX_create_environment(argv[1]);
648 SIMIX_comm_set_copy_data_callback(&smpi_comm_copy_buffer_callback);
649 SIMIX_function_register_default(realmain);
650 SIMIX_launch_application(argv[2]);
654 smpi_check_options();
656 if(smpi_privatize_global_variables)
657 smpi_initialize_global_memory_segments();
659 /* Clean IO before the run */
663 if (MC_is_active()) {
669 xbt_os_walltimer_stop(global_timer);
670 if (xbt_cfg_get_boolean("smpi/display-timing")){
671 double global_time = xbt_os_timer_elapsed(global_timer);
672 XBT_INFO("Simulated time: %g seconds. \n\n"
673 "The simulation took %g seconds (after parsing and platform setup)\n"
674 "%g seconds were actual computation of the application",
675 SIMIX_get_clock(), global_time , smpi_total_benched_time);
677 if (smpi_total_benched_time/global_time>=0.75)
678 XBT_INFO("More than 75%% of the time was spent inside the application code.\n"
679 "You may want to use sampling functions or trace replay to reduce this.");
682 int count = smpi_process_count();
684 for (i = 0; i < count; i++) {
685 if(process_data[i]->return_value!=0){
686 ret=process_data[i]->return_value;//return first non 0 value
690 smpi_global_destroy();
697 // This function can be called from extern file, to initialize logs, options, and processes of smpi
698 // without the need of smpirun
703 smpi_check_options();
704 if (TRACE_is_enabled() && TRACE_is_configured())
706 if(smpi_privatize_global_variables)
707 smpi_initialize_global_memory_segments();
710 void SMPI_finalize(){
711 smpi_global_destroy();