1 /* Copyright (c) 2004-2017. 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. */
6 #include "surf_interface.hpp"
8 #include "simgrid/s4u/Engine.hpp"
9 #include "simgrid/sg_config.h"
10 #include "src/instr/instr_private.h" // TRACE_is_enabled(). FIXME: remove by subscribing tracing to the surf signals
11 #include "src/kernel/routing/NetPoint.hpp"
12 #include "src/surf/HostImpl.hpp"
17 XBT_LOG_NEW_CATEGORY(surf, "All SURF categories");
18 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf, "Logging specific to SURF (kernel)");
24 std::vector<surf_model_t> * all_existing_models = nullptr; /* to destroy models correctly */
26 simgrid::trace_mgr::future_evt_set *future_evt_set = nullptr;
27 std::vector<std::string> surf_path;
28 std::vector<simgrid::s4u::Host*> host_that_restart;
29 xbt_dict_t watched_hosts_lib;
30 extern std::map<std::string, storage_type_t> storage_types;
35 simgrid::xbt::signal<void(void)> surfExitCallbacks;
40 #include <simgrid/plugins/energy.h> // FIXME: this plugin should not be linked to the core
41 #include <simgrid/plugins/load.h> // FIXME: this plugin should not be linked to the core
43 s_surf_model_description_t surf_plugin_description[] = {
44 {"Energy", "Cpu energy consumption.", &sg_host_energy_plugin_init},
45 {"Load", "Cpu load.", &sg_host_load_plugin_init},
46 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
49 /* Don't forget to update the option description in smx_config when you change this */
50 s_surf_model_description_t surf_network_model_description[] = {
51 {"LV08", "Realistic network analytic model (slow-start modeled by multiplying latency by 10.4, bandwidth by .92; bottleneck sharing uses a payload of S=8775 for evaluating RTT). ",
52 &surf_network_model_init_LegrandVelho},
54 "Simplistic network model where all communication take a constant time (one second). This model provides the lowest realism, but is (marginally) faster.",
55 &surf_network_model_init_Constant},
56 {"SMPI", "Realistic network model specifically tailored for HPC settings (accurate modeling of slow start with correction factors on three intervals: < 1KiB, < 64 KiB, >= 64 KiB)",
57 &surf_network_model_init_SMPI},
58 {"IB", "Realistic network model specifically tailored for HPC settings, with Infiniband contention model",
59 &surf_network_model_init_IB},
60 {"CM02", "Legacy network analytic model (Very similar to LV08, but without corrective factors. The timings of small messages are thus poorly modeled).",
61 &surf_network_model_init_CM02},
62 {"NS3", "Network pseudo-model using the NS3 tcp model instead of an analytic model", &surf_network_model_init_NS3},
63 {"Reno", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
64 &surf_network_model_init_Reno},
65 {"Reno2", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
66 &surf_network_model_init_Reno2},
67 {"Vegas", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
68 &surf_network_model_init_Vegas},
69 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
73 void surf_network_model_init_SMPI() {
74 xbt_die("Please activate SMPI support in cmake to use the SMPI network model.");
76 void surf_network_model_init_IB() {
77 xbt_die("Please activate SMPI support in cmake to use the IB network model.");
81 void surf_network_model_init_NS3() {
82 xbt_die("Please activate NS3 support in cmake and install the dependencies to use the NS3 network model.");
86 s_surf_model_description_t surf_cpu_model_description[] = {
87 {"Cas01", "Simplistic CPU model (time=size/power).", &surf_cpu_model_init_Cas01},
88 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
91 s_surf_model_description_t surf_host_model_description[] = {
92 {"default", "Default host model. Currently, CPU:Cas01 and network:LV08 (with cross traffic enabled)", &surf_host_model_init_current_default},
93 {"compound", "Host model that is automatically chosen if you change the network and CPU models", &surf_host_model_init_compound},
94 {"ptask_L07", "Host model somehow similar to Cas01+CM02 but allowing parallel tasks", &surf_host_model_init_ptask_L07},
95 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
98 s_surf_model_description_t surf_optimization_mode_description[] = {
99 {"Lazy", "Lazy action management (partial invalidation in lmm + heap in action remaining).", nullptr},
100 {"TI", "Trace integration. Highly optimized mode when using availability traces (only available for the Cas01 CPU model for now).", nullptr},
101 {"Full", "Full update of remaining and variables. Slow but may be useful when debugging.", nullptr},
102 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
105 s_surf_model_description_t surf_storage_model_description[] = {
106 {"default", "Simplistic storage model.", &surf_storage_model_init_default},
107 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
110 #if HAVE_THREAD_CONTEXTS
111 static xbt_parmap_t surf_parmap = nullptr; /* parallel map on models */
116 double surf_get_clock()
122 # define FILE_DELIM "\\"
124 # define FILE_DELIM "/" /* FIXME: move to better location */
127 std::ifstream* surf_ifsopen(const char* name)
129 std::ifstream* fs = new std::ifstream();
131 if (__surf_is_absolute_file_path(name)) { /* don't mess with absolute file names */
132 fs->open(name, std::ifstream::in);
135 /* search relative files in the path */
136 for (auto path_elm : surf_path) {
137 std::string buff = path_elm + FILE_DELIM + name;
138 fs->open(buff.c_str(), std::ifstream::in);
141 XBT_DEBUG("Found file at %s", buff.c_str());
148 FILE *surf_fopen(const char *name, const char *mode)
151 FILE *file = nullptr;
155 if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
156 return fopen(name, mode);
158 /* search relative files in the path */
159 for (auto path_elm : surf_path) {
160 buff = bprintf("%s" FILE_DELIM "%s", path_elm.c_str(), name);
161 file = fopen(buff, mode);
173 static const char *disk_drives_letter_table[MAX_DRIVE] = {
174 "A:\\","B:\\","C:\\","D:\\","E:\\","F:\\","G:\\","H:\\","I:\\","J:\\","K:\\","L:\\","M:\\",
175 "N:\\","O:\\","P:\\","Q:\\","R:\\","S:\\","T:\\","U:\\","V:\\","W:\\","X:\\","Y:\\","Z:\\"
180 * Returns the initial path. On Windows the initial path is
181 * the current directory for the current process in the other
182 * case the function returns "./" that represents the current
183 * directory on Unix/Linux platforms.
186 const char *__surf_get_initial_path()
191 char current_directory[MAX_PATH + 1] = { 0 };
192 unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
193 char root[4] = { 0 };
198 strncpy(root, current_directory, 3);
200 for (i = 0; i < MAX_DRIVE; i++) {
201 if (toupper(root[0]) == disk_drives_letter_table[i][0])
202 return disk_drives_letter_table[i];
211 /* The __surf_is_absolute_file_path() returns 1 if
212 * file_path is a absolute file path, in the other
213 * case the function returns 0.
215 int __surf_is_absolute_file_path(const char *file_path)
218 WIN32_FIND_DATA wfd = { 0 };
219 HANDLE hFile = FindFirstFile(file_path, &wfd);
221 if (INVALID_HANDLE_VALUE == hFile)
227 return (file_path[0] == '/');
231 /** Displays the long description of all registered models, and quit */
232 void model_help(const char *category, s_surf_model_description_t * table)
234 printf("Long description of the %s models accepted by this simulator:\n", category);
235 for (int i = 0; table[i].name; i++)
236 printf(" %s: %s\n", table[i].name, table[i].description);
239 int find_model_description(s_surf_model_description_t * table,
243 char *name_list = nullptr;
245 for (i = 0; table[i].name; i++)
246 if (!strcmp(name, table[i].name)) {
250 xbt_die("No model is valid! This is a bug.");
251 name_list = xbt_strdup(table[0].name);
252 for (i = 1; table[i].name; i++) {
253 name_list = (char *) xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 3);
254 strncat(name_list, ", ", 2);
255 strncat(name_list, table[i].name, strlen(table[i].name));
257 xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
261 static inline void surf_storage_free(void *r)
263 delete static_cast<simgrid::surf::Storage*>(r);
266 void sg_version_check(int lib_version_major,int lib_version_minor,int lib_version_patch) {
267 if ((lib_version_major != SIMGRID_VERSION_MAJOR) || (lib_version_minor != SIMGRID_VERSION_MINOR)) {
269 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
270 "and then linked against SimGrid %d.%d.%d. Please fix this.\n",
271 lib_version_major,lib_version_minor,lib_version_patch,
272 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
275 if (lib_version_patch != SIMGRID_VERSION_PATCH) {
276 if(SIMGRID_VERSION_PATCH >= 90 || lib_version_patch >=90){
278 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
279 "and then linked against SimGrid %d.%d.%d. \n"
280 "One of them is a development version, and should not be mixed with the stable release. Please fix this.\n",
281 lib_version_major,lib_version_minor,lib_version_patch,
282 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
286 "Warning: Your program was compiled with SimGrid version %d.%d.%d, "
287 "and then linked against SimGrid %d.%d.%d. Proceeding anyway.\n",
288 lib_version_major,lib_version_minor,lib_version_patch,
289 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
293 void sg_version_get(int* ver_major, int* ver_minor, int* ver_patch)
295 *ver_major = SIMGRID_VERSION_MAJOR;
296 *ver_minor = SIMGRID_VERSION_MINOR;
297 *ver_patch = SIMGRID_VERSION_PATCH;
302 std::printf("This program was linked against %s (git: %s), found in %s.\n",
303 SIMGRID_VERSION_STRING, SIMGRID_GIT_VERSION, SIMGRID_INSTALL_PREFIX);
306 std::printf(" Model-checking support compiled in.\n");
308 std::printf(" Model-checking support disabled at compilation.\n");
312 std::printf(" NS3 support compiled in.\n");
314 std::printf(" NS3 support disabled at compilation.\n");
317 #if SIMGRID_HAVE_JEDULE
318 std::printf(" Jedule support compiled in.\n");
320 std::printf(" Jedule support disabled at compilation.\n");
324 std::printf(" Lua support compiled in.\n");
326 std::printf(" Lua support disabled at compilation.\n");
329 #if SIMGRID_HAVE_MALLOCATOR
330 std::printf(" Mallocator support compiled in.\n");
332 std::printf(" Mallocator support disabled at compilation.\n");
335 std::printf("\nTo cite SimGrid in a publication, please use:\n"
336 " Henri Casanova, Arnaud Giersch, Arnaud Legrand, Martin Quinson, Frédéric Suter. \n"
337 " Versatile, Scalable, and Accurate Simulation of Distributed Applications and Platforms. \n"
338 " Journal of Parallel and Distributed Computing, Elsevier, 2014, 74 (10), pp.2899-2917.\n");
339 std::printf("The pdf file and a BibTeX entry for LaTeX users can be found at http://hal.inria.fr/hal-01017319\n");
342 void surf_init(int *argc, char **argv)
344 if (USER_HOST_LEVEL != -1) // Already initialized
347 XBT_DEBUG("Create all Libs");
348 USER_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
350 storage_lib = xbt_lib_new();
351 watched_hosts_lib = xbt_dict_new_homogeneous(nullptr);
353 XBT_DEBUG("Add SURF levels");
354 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_free);
356 xbt_init(argc, argv);
357 if (!all_existing_models)
358 all_existing_models = new std::vector<simgrid::surf::Model*>();
360 future_evt_set = new simgrid::trace_mgr::future_evt_set();
363 simgrid::surf::surfExitCallbacks.connect(TRACE_surf_release);
365 sg_config_init(argc, argv);
373 TRACE_end(); /* Just in case it was not called by the upper layer (or there is no upper layer) */
376 xbt_lib_free(&storage_lib);
378 xbt_dict_free(&watched_hosts_lib);
379 for (auto e : storage_types) {
380 storage_type_t stype = e.second;
382 free(stype->type_id);
383 free(stype->content);
384 free(stype->content_type);
385 xbt_dict_free(&(stype->properties));
386 delete stype->model_properties;
390 for (auto model : *all_existing_models)
392 delete all_existing_models;
394 simgrid::surf::surfExitCallbacks();
396 if (future_evt_set) {
397 delete future_evt_set;
398 future_evt_set = nullptr;
401 #if HAVE_THREAD_CONTEXTS
402 xbt_parmap_destroy(surf_parmap);
407 simgrid::s4u::Engine::shutdown();
409 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
420 : maxminSystem_(nullptr)
422 readyActionSet_ = new ActionList();
423 runningActionSet_ = new ActionList();
424 failedActionSet_ = new ActionList();
425 doneActionSet_ = new ActionList();
427 modifiedSet_ = nullptr;
428 actionHeap_ = nullptr;
429 updateMechanism_ = UM_UNDEFINED;
430 selectiveUpdate_ = 0;
434 delete readyActionSet_;
435 delete runningActionSet_;
436 delete failedActionSet_;
437 delete doneActionSet_;
440 double Model::nextOccuringEvent(double now)
442 //FIXME: set the good function once and for all
443 if (updateMechanism_ == UM_LAZY)
444 return nextOccuringEventLazy(now);
445 else if (updateMechanism_ == UM_FULL)
446 return nextOccuringEventFull(now);
448 xbt_die("Invalid cpu update mechanism!");
451 double Model::nextOccuringEventLazy(double now)
453 XBT_DEBUG("Before share resources, the size of modified actions set is %zd", modifiedSet_->size());
454 lmm_solve(maxminSystem_);
455 XBT_DEBUG("After share resources, The size of modified actions set is %zd", modifiedSet_->size());
457 while(!modifiedSet_->empty()) {
458 Action *action = &(modifiedSet_->front());
459 modifiedSet_->pop_front();
460 bool max_dur_flag = false;
462 if (action->getStateSet() != runningActionSet_)
465 /* bogus priority, skip it */
466 if (action->getPriority() <= 0 || action->getHat()==LATENCY)
469 action->updateRemainingLazy(now);
472 double share = lmm_variable_getvalue(action->getVariable());
475 double time_to_completion;
476 if (action->getRemains() > 0) {
477 time_to_completion = action->getRemainsNoUpdate() / share;
479 time_to_completion = 0.0;
481 min = now + time_to_completion; // when the task will complete if nothing changes
484 if ((action->getMaxDuration() > NO_MAX_DURATION) &&
485 (min == -1 || action->getStartTime() + action->getMaxDuration() < min)) {
486 // when the task will complete anyway because of the deadline if any
487 min = action->getStartTime() + action->getMaxDuration();
492 XBT_DEBUG("Action(%p) corresponds to variable %d", action, action->getVariable()->id_int);
494 XBT_DEBUG("Action(%p) Start %f. May finish at %f (got a share of %f). Max_duration %f", action,
495 action->getStartTime(), min, share,
496 action->getMaxDuration());
499 action->heapUpdate(actionHeap_, min, max_dur_flag ? MAX_DURATION : NORMAL);
500 XBT_DEBUG("Insert at heap action(%p) min %f now %f", action, min, now);
505 //hereafter must have already the min value for this resource model
506 if (xbt_heap_size(actionHeap_) > 0) {
507 double min = xbt_heap_maxkey(actionHeap_) - now;
508 XBT_DEBUG("minimum with the HEAP %f", min);
511 XBT_DEBUG("The HEAP is empty, thus returning -1");
516 double Model::nextOccuringEventFull(double /*now*/) {
517 maxminSystem_->solve_fun(maxminSystem_);
520 for (auto it(getRunningActionSet()->begin()), itend(getRunningActionSet()->end()); it != itend ; ++it) {
521 Action *action = &*it;
522 double value = lmm_variable_getvalue(action->getVariable());
524 if (action->getRemains() > 0)
525 value = action->getRemainsNoUpdate() / value;
528 if (min < 0 || value < min) {
530 XBT_DEBUG("Updating min (value) with %p: %f", action, min);
533 if ((action->getMaxDuration() >= 0) && (min<0 || action->getMaxDuration() < min)) {
534 min = action->getMaxDuration();
535 XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
538 XBT_DEBUG("min value : %f", min);
543 void Model::updateActionsState(double now, double delta)
545 if (updateMechanism_ == UM_FULL)
546 updateActionsStateFull(now, delta);
547 else if (updateMechanism_ == UM_LAZY)
548 updateActionsStateLazy(now, delta);
550 xbt_die("Invalid cpu update mechanism!");
553 void Model::updateActionsStateLazy(double /*now*/, double /*delta*/)
558 void Model::updateActionsStateFull(double /*now*/, double /*delta*/)
573 Resource::Resource(Model* model, const char* name, lmm_constraint_t constraint)
574 : name_(name), model_(model), constraint_(constraint)
577 Resource::~Resource() = default;
579 bool Resource::isOn() const {
582 bool Resource::isOff() const {
586 void Resource::turnOn()
591 void Resource::turnOff()
596 Model* Resource::model() const
601 const char* Resource::cname() const
603 return name_.c_str();
606 bool Resource::operator==(const Resource &other) const {
607 return name_ == other.name_;
610 lmm_constraint_t Resource::constraint() const
622 const char *surf_action_state_names[6] = {
624 "SURF_ACTION_RUNNING",
625 "SURF_ACTION_FAILED",
627 "SURF_ACTION_TO_FREE",
628 "SURF_ACTION_NOT_IN_THE_SYSTEM"
631 /* added to manage the communication action's heap */
632 void surf_action_lmm_update_index_heap(void *action, int i) {
633 static_cast<simgrid::surf::Action*>(action)->updateIndexHeap(i);
639 Action::Action(simgrid::surf::Model* model, double cost, bool failed) : Action(model, cost, failed, nullptr)
643 Action::Action(simgrid::surf::Model* model, double cost, bool failed, lmm_variable_t var)
644 : remains_(cost), start_(surf_get_clock()), cost_(cost), model_(model), variable_(var)
647 stateSet_ = getModel()->getFailedActionSet();
649 stateSet_ = getModel()->getRunningActionSet();
651 stateSet_->push_back(*this);
658 void Action::finish() {
659 finishTime_ = surf_get_clock();
662 Action::State Action::getState()
664 if (stateSet_ == model_->getReadyActionSet())
665 return Action::State::ready;
666 if (stateSet_ == model_->getRunningActionSet())
667 return Action::State::running;
668 if (stateSet_ == model_->getFailedActionSet())
669 return Action::State::failed;
670 if (stateSet_ == model_->getDoneActionSet())
671 return Action::State::done;
672 return Action::State::not_in_the_system;
675 void Action::setState(Action::State state)
677 stateSet_->erase(stateSet_->iterator_to(*this));
679 case Action::State::ready:
680 stateSet_ = model_->getReadyActionSet();
682 case Action::State::running:
683 stateSet_ = model_->getRunningActionSet();
685 case Action::State::failed:
686 stateSet_ = model_->getFailedActionSet();
688 case Action::State::done:
689 stateSet_ = model_->getDoneActionSet();
696 stateSet_->push_back(*this);
699 double Action::getBound()
701 return (variable_) ? lmm_variable_getbound(variable_) : 0;
704 void Action::setBound(double bound)
706 XBT_IN("(%p,%g)", this, bound);
708 lmm_update_variable_bound(getModel()->getMaxminSystem(), variable_, bound);
710 if (getModel()->getUpdateMechanism() == UM_LAZY && getLastUpdate() != surf_get_clock())
711 heapRemove(getModel()->getActionHeap());
715 double Action::getStartTime()
720 double Action::getFinishTime()
722 /* keep the function behavior, some models (cpu_ti) change the finish time before the action end */
723 return remains_ <= 0 ? finishTime_ : -1;
726 void Action::setData(void* data)
731 void Action::setCategory(const char *category)
733 category_ = xbt_strdup(category);
740 void Action::setMaxDuration(double duration)
742 maxDuration_ = duration;
743 if (getModel()->getUpdateMechanism() == UM_LAZY) // remove action from the heap
744 heapRemove(getModel()->getActionHeap());
747 void Action::gapRemove() {}
749 void Action::setPriority(double priority)
751 XBT_IN("(%p,%g)", this, priority);
752 priority_ = priority;
753 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority);
755 if (getModel()->getUpdateMechanism() == UM_LAZY)
756 heapRemove(getModel()->getActionHeap());
760 void Action::cancel(){
761 setState(Action::State::failed);
762 if (getModel()->getUpdateMechanism() == UM_LAZY) {
763 if (action_lmm_hook.is_linked())
764 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
765 heapRemove(getModel()->getActionHeap());
772 if (action_hook.is_linked())
773 stateSet_->erase(stateSet_->iterator_to(*this));
775 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
776 if (getModel()->getUpdateMechanism() == UM_LAZY) {
777 /* remove from heap */
778 heapRemove(getModel()->getActionHeap());
779 if (action_lmm_hook.is_linked())
780 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
788 void Action::suspend()
790 XBT_IN("(%p)", this);
791 if (suspended_ != 2) {
792 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
793 if (getModel()->getUpdateMechanism() == UM_LAZY){
794 heapRemove(getModel()->getActionHeap());
795 if (getModel()->getUpdateMechanism() == UM_LAZY && stateSet_ == getModel()->getRunningActionSet() && priority_ > 0){
796 //If we have a lazy model, we need to update the remaining value accordingly
797 updateRemainingLazy(surf_get_clock());
805 void Action::resume()
807 XBT_IN("(%p)", this);
808 if (suspended_ != 2) {
809 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority_);
811 if (getModel()->getUpdateMechanism() == UM_LAZY)
812 heapRemove(getModel()->getActionHeap());
817 bool Action::isSuspended()
819 return suspended_ == 1;
821 /* insert action on heap using a given key and a hat (heap_action_type)
822 * a hat can be of three types for communications:
824 * NORMAL = this is a normal heap entry stating the date to finish transmitting
825 * LATENCY = this is a heap entry to warn us when the latency is payed
826 * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached
828 void Action::heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat)
831 xbt_heap_push(heap, this, key);
834 void Action::heapRemove(xbt_heap_t heap)
837 if (indexHeap_ >= 0) {
838 xbt_heap_remove(heap, indexHeap_);
842 void Action::heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat)
845 if (indexHeap_ >= 0) {
846 xbt_heap_update(heap, indexHeap_, key);
848 xbt_heap_push(heap, this, key);
852 void Action::updateIndexHeap(int i) {
856 double Action::getRemains()
858 XBT_IN("(%p)", this);
859 /* update remains before return it */
860 if (getModel()->getUpdateMechanism() == UM_LAZY) /* update remains before return it */
861 updateRemainingLazy(surf_get_clock());
866 double Action::getRemainsNoUpdate()
871 //FIXME split code in the right places
872 void Action::updateRemainingLazy(double now)
876 if(getModel() == surf_network_model)
883 xbt_assert(stateSet_ == getModel()->getRunningActionSet(), "You're updating an action that is not running.");
884 xbt_assert(priority_ > 0, "You're updating an action that seems suspended.");
887 delta = now - lastUpdate_;
890 XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, remains_, lastUpdate_);
891 double_update(&remains_, lastValue_ * delta, sg_surf_precision*sg_maxmin_precision);
893 if (getModel() == surf_cpu_model_pm && TRACE_is_enabled()) {
894 simgrid::surf::Resource *cpu = static_cast<simgrid::surf::Resource*>(
895 lmm_constraint_id(lmm_get_cnst_from_var(getModel()->getMaxminSystem(), getVariable(), 0)));
896 TRACE_surf_host_set_utilization(cpu->cname(), getCategory(), lastValue_, lastUpdate_, now - lastUpdate_);
898 XBT_DEBUG("Updating action(%p): remains is now %f", this, remains_);
901 if(getModel() == surf_network_model)
903 if (maxDuration_ != NO_MAX_DURATION)
904 double_update(&maxDuration_, delta, sg_surf_precision);
906 //FIXME: duplicated code
907 if ((remains_ <= 0) &&
908 (lmm_get_variable_weight(getVariable()) > 0)) {
910 setState(Action::State::done);
911 heapRemove(getModel()->getActionHeap());
912 } else if (((maxDuration_ != NO_MAX_DURATION)
913 && (maxDuration_ <= 0))) {
915 setState(Action::State::done);
916 heapRemove(getModel()->getActionHeap());
921 lastValue_ = lmm_variable_getvalue(getVariable());