1 /* Copyright (c) 2004-2015. 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. */
7 #include "src/internal_config.h"
8 #include "surf_private.h"
9 #include "surf_interface.hpp"
10 #include "network_interface.hpp"
11 #include "cpu_interface.hpp"
12 #include "src/surf/HostImpl.hpp"
13 #include "src/simix/smx_host_private.h"
14 #include "surf_routing.hpp"
15 #include "simgrid/sg_config.h"
17 #include "virtual_machine.hpp"
18 #include "src/instr/instr_private.h" // TRACE_is_enabled(). FIXME: remove by subscribing tracing to the surf signals
19 #include "simgrid/s4u/engine.hpp"
21 XBT_LOG_NEW_CATEGORY(surf, "All SURF categories");
22 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf, "Logging specific to SURF (kernel)");
28 /* model_list_invoke contains only surf_host and surf_vm.
29 * The callback functions of cpu_model and network_model will be called from those of these host models. */
30 xbt_dynar_t all_existing_models = nullptr; /* to destroy models correctly */
31 xbt_dynar_t model_list_invoke = nullptr; /* to invoke callbacks */
33 simgrid::trace_mgr::future_evt_set *future_evt_set = nullptr;
34 xbt_dynar_t surf_path = nullptr;
35 xbt_dynar_t host_that_restart = xbt_dynar_new(sizeof(char*), nullptr);
36 xbt_dict_t watched_hosts_lib;
41 simgrid::xbt::signal<void(void)> surfExitCallbacks;
46 #include <simgrid/plugins/energy.h> // FIXME: this plugin should not be linked to the core
48 s_surf_model_description_t surf_plugin_description[] = {
49 {"Energy", "Cpu energy consumption.", sg_energy_plugin_init},
50 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
53 /* Don't forget to update the option description in smx_config when you change this */
54 s_surf_model_description_t surf_network_model_description[] = {
55 {"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). ",
56 surf_network_model_init_LegrandVelho},
58 "Simplistic network model where all communication take a constant time (one second). This model provides the lowest realism, but is (marginally) faster.",
59 surf_network_model_init_Constant},
60 {"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)",
61 surf_network_model_init_SMPI},
62 {"IB", "Realistic network model specifically tailored for HPC settings, with Infiniband contention model",
63 surf_network_model_init_IB},
64 {"CM02", "Legacy network analytic model (Very similar to LV08, but without corrective factors. The timings of small messages are thus poorly modeled).",
65 surf_network_model_init_CM02},
67 {"NS3", "Network pseudo-model using the NS3 tcp model instead of an analytic model", surf_network_model_init_NS3},
69 {"Reno", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
70 surf_network_model_init_Reno},
71 {"Reno2", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
72 surf_network_model_init_Reno2},
73 {"Vegas", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
74 surf_network_model_init_Vegas},
75 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
78 s_surf_model_description_t surf_cpu_model_description[] = {
79 {"Cas01", "Simplistic CPU model (time=size/power).", surf_cpu_model_init_Cas01},
80 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
83 s_surf_model_description_t surf_host_model_description[] = {
84 {"default", "Default host model. Currently, CPU:Cas01 and network:LV08 (with cross traffic enabled)", surf_host_model_init_current_default},
85 {"compound", "Host model that is automatically chosen if you change the network and CPU models", surf_host_model_init_compound},
86 {"ptask_L07", "Host model somehow similar to Cas01+CM02 but allowing parallel tasks", surf_host_model_init_ptask_L07},
87 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
90 s_surf_model_description_t surf_vm_model_description[] = {
91 {"default", "Default vm model.", surf_vm_model_init_HL13},
92 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
95 s_surf_model_description_t surf_optimization_mode_description[] = {
96 {"Lazy", "Lazy action management (partial invalidation in lmm + heap in action remaining).", nullptr},
97 {"TI", "Trace integration. Highly optimized mode when using availability traces (only available for the Cas01 CPU model for now).", nullptr},
98 {"Full", "Full update of remaining and variables. Slow but may be useful when debugging.", nullptr},
99 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
102 s_surf_model_description_t surf_storage_model_description[] = {
103 {"default", "Simplistic storage model.", surf_storage_model_init_default},
104 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
107 #if HAVE_THREAD_CONTEXTS
108 static xbt_parmap_t surf_parmap = nullptr; /* parallel map on models */
113 double surf_get_clock(void)
119 # define FILE_DELIM "\\"
121 # define FILE_DELIM "/" /* FIXME: move to better location */
124 FILE *surf_fopen(const char *name, const char *mode)
127 char *path_elm = nullptr;
129 FILE *file = nullptr;
133 if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
134 return fopen(name, mode);
136 /* search relative files in the path */
137 xbt_dynar_foreach(surf_path, cpt, path_elm) {
138 buff = bprintf("%s" FILE_DELIM "%s", path_elm, name);
139 file = fopen(buff, mode);
151 static const char *disk_drives_letter_table[MAX_DRIVE] = {
152 "A:\\","B:\\","C:\\","D:\\","E:\\","F:\\","G:\\","H:\\","I:\\","J:\\","K:\\","L:\\","M:\\",
153 "N:\\","O:\\","P:\\","Q:\\","R:\\","S:\\","T:\\","U:\\","V:\\","W:\\","X:\\","Y:\\","Z:\\"
158 * Returns the initial path. On Windows the initial path is
159 * the current directory for the current process in the other
160 * case the function returns "./" that represents the current
161 * directory on Unix/Linux platforms.
164 const char *__surf_get_initial_path(void)
169 char current_directory[MAX_PATH + 1] = { 0 };
170 unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
171 char root[4] = { 0 };
176 strncpy(root, current_directory, 3);
178 for (i = 0; i < MAX_DRIVE; i++) {
179 if (toupper(root[0]) == disk_drives_letter_table[i][0])
180 return disk_drives_letter_table[i];
189 /* The __surf_is_absolute_file_path() returns 1 if
190 * file_path is a absolute file path, in the other
191 * case the function returns 0.
193 int __surf_is_absolute_file_path(const char *file_path)
196 WIN32_FIND_DATA wfd = { 0 };
197 HANDLE hFile = FindFirstFile(file_path, &wfd);
199 if (INVALID_HANDLE_VALUE == hFile)
205 return (file_path[0] == '/');
209 /** Displays the long description of all registered models, and quit */
210 void model_help(const char *category, s_surf_model_description_t * table)
212 printf("Long description of the %s models accepted by this simulator:\n", category);
213 for (int i = 0; table[i].name; i++)
214 printf(" %s: %s\n", table[i].name, table[i].description);
217 int find_model_description(s_surf_model_description_t * table,
221 char *name_list = nullptr;
223 for (i = 0; table[i].name; i++)
224 if (!strcmp(name, table[i].name)) {
228 xbt_die("No model is valid! This is a bug.");
229 name_list = xbt_strdup(table[0].name);
230 for (i = 1; table[i].name; i++) {
231 name_list = (char *) xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 3);
232 strncat(name_list, ", ", 2);
233 strncat(name_list, table[i].name, strlen(table[i].name));
235 xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
239 static inline void surf_storage_free(void *r)
241 delete static_cast<simgrid::surf::Storage*>(r);
244 void sg_version_check(int lib_version_major,int lib_version_minor,int lib_version_patch) {
245 if ((lib_version_major != SIMGRID_VERSION_MAJOR) || (lib_version_minor != SIMGRID_VERSION_MINOR)) {
247 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
248 "and then linked against SimGrid %d.%d.%d. Please fix this.\n",
249 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH,
250 lib_version_major,lib_version_minor,lib_version_patch);
253 if (lib_version_patch != SIMGRID_VERSION_PATCH) {
255 "Warning: Your program was compiled with SimGrid version %d.%d.%d, "
256 "and then linked against SimGrid %d.%d.%d. Proceeding anyway.\n",
257 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH,
258 lib_version_major,lib_version_minor,lib_version_patch);
262 void sg_version(int *ver_major,int *ver_minor,int *ver_patch) {
263 *ver_major = SIMGRID_VERSION_MAJOR;
264 *ver_minor = SIMGRID_VERSION_MINOR;
265 *ver_patch = SIMGRID_VERSION_PATCH;
268 void surf_init(int *argc, char **argv)
270 if (host_list != nullptr) // Already initialized
273 XBT_DEBUG("Create all Libs");
274 host_list = xbt_dict_new_homogeneous([](void*p) {
275 simgrid::s4u::Host* host = static_cast<simgrid::s4u::Host*>(p);
276 simgrid::s4u::Host::onDestruction(*host);
279 USER_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
281 as_router_lib = xbt_lib_new();
282 storage_lib = xbt_lib_new();
283 storage_type_lib = xbt_lib_new();
284 file_lib = xbt_lib_new();
285 watched_hosts_lib = xbt_dict_new_homogeneous(nullptr);
287 XBT_DEBUG("Add routing levels");
288 ROUTING_PROP_ASR_LEVEL = xbt_lib_add_level(as_router_lib, nullptr);
289 ROUTING_ASR_LEVEL = xbt_lib_add_level(as_router_lib, [](void* p) {
290 delete static_cast<simgrid::kernel::routing::NetCard*>(p);
293 XBT_DEBUG("Add SURF levels");
294 simgrid::surf::HostImpl::classInit();
295 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_free);
297 xbt_init(argc, argv);
298 if (!all_existing_models)
299 all_existing_models = xbt_dynar_new(sizeof(simgrid::surf::Model*), nullptr);
300 if (!model_list_invoke)
301 model_list_invoke = xbt_dynar_new(sizeof(simgrid::surf::Model*), nullptr);
303 future_evt_set = new simgrid::trace_mgr::future_evt_set();
305 TRACE_add_start_function(TRACE_surf_alloc);
306 TRACE_add_end_function(TRACE_surf_release);
308 sg_config_init(argc, argv);
317 simgrid::surf::Model *model = nullptr;
319 TRACE_end(); /* Just in case it was not called by the upper
320 * layer (or there is no upper layer) */
322 sg_config_finalize();
324 xbt_dynar_free(&host_that_restart);
325 xbt_dynar_free(&surf_path);
327 xbt_dict_free(&host_list);
328 xbt_lib_free(&as_router_lib);
329 xbt_lib_free(&storage_lib);
331 xbt_lib_free(&storage_type_lib);
332 xbt_lib_free(&file_lib);
333 xbt_dict_free(&watched_hosts_lib);
335 xbt_dynar_foreach(all_existing_models, iter, model)
337 xbt_dynar_free(&all_existing_models);
338 xbt_dynar_free(&model_list_invoke);
341 simgrid::surf::surfExitCallbacks();
343 if (future_evt_set) {
344 delete future_evt_set;
345 future_evt_set = nullptr;
348 #if HAVE_THREAD_CONTEXTS
349 xbt_parmap_destroy(surf_parmap);
354 simgrid::s4u::Engine::shutdown();
356 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
367 : maxminSystem_(nullptr)
369 readyActionSet_ = new ActionList();
370 runningActionSet_ = new ActionList();
371 failedActionSet_ = new ActionList();
372 doneActionSet_ = new ActionList();
374 modifiedSet_ = nullptr;
375 actionHeap_ = nullptr;
376 updateMechanism_ = UM_UNDEFINED;
377 selectiveUpdate_ = 0;
381 delete readyActionSet_;
382 delete runningActionSet_;
383 delete failedActionSet_;
384 delete doneActionSet_;
387 double Model::next_occuring_event(double now)
389 //FIXME: set the good function once and for all
390 if (updateMechanism_ == UM_LAZY)
391 return next_occuring_event_lazy(now);
392 else if (updateMechanism_ == UM_FULL)
393 return next_occuring_event_full(now);
395 xbt_die("Invalid cpu update mechanism!");
398 double Model::next_occuring_event_lazy(double now)
400 Action *action = nullptr;
405 ("Before share resources, the size of modified actions set is %zd",
406 modifiedSet_->size());
408 lmm_solve(maxminSystem_);
411 ("After share resources, The size of modified actions set is %zd",
412 modifiedSet_->size());
414 while(!modifiedSet_->empty()) {
415 action = &(modifiedSet_->front());
416 modifiedSet_->pop_front();
417 int max_dur_flag = 0;
419 if (action->getStateSet() != runningActionSet_)
422 /* bogus priority, skip it */
423 if (action->getPriority() <= 0 || action->getHat()==LATENCY)
426 action->updateRemainingLazy(now);
429 share = lmm_variable_getvalue(action->getVariable());
432 double time_to_completion;
433 if (action->getRemains() > 0) {
434 time_to_completion = action->getRemainsNoUpdate() / share;
436 time_to_completion = 0.0;
438 min = now + time_to_completion; // when the task will complete if nothing changes
441 if ((action->getMaxDuration() != NO_MAX_DURATION)
443 || action->getStartTime() +
444 action->getMaxDuration() < min)) {
445 min = action->getStartTime() +
446 action->getMaxDuration(); // when the task will complete anyway because of the deadline if any
451 XBT_DEBUG("Action(%p) corresponds to variable %d", action, action->getVariable()->id_int);
453 XBT_DEBUG("Action(%p) Start %f. May finish at %f (got a share of %f). Max_duration %f", action,
454 action->getStartTime(), min, share,
455 action->getMaxDuration());
458 action->heapUpdate(actionHeap_, min, max_dur_flag ? MAX_DURATION : NORMAL);
459 XBT_DEBUG("Insert at heap action(%p) min %f now %f", action, min,
461 } else DIE_IMPOSSIBLE;
464 //hereafter must have already the min value for this resource model
465 if (xbt_heap_size(actionHeap_) > 0)
466 min = xbt_heap_maxkey(actionHeap_) - now;
470 XBT_DEBUG("The minimum with the HEAP %f", min);
475 double Model::next_occuring_event_full(double /*now*/) {
480 double Model::shareResourcesMaxMin(ActionList *running_actions,
482 void (*solve) (lmm_system_t))
484 Action *action = nullptr;
490 ActionList::iterator it(running_actions->begin()), itend(running_actions->end());
491 for(; it != itend ; ++it) {
493 value = lmm_variable_getvalue(action->getVariable());
494 if ((value > 0) || (action->getMaxDuration() >= 0))
502 if (action->getRemains() > 0)
503 min = action->getRemainsNoUpdate() / value;
506 if ((action->getMaxDuration() >= 0) && (action->getMaxDuration() < min))
507 min = action->getMaxDuration();
509 min = action->getMaxDuration();
512 for (++it; it != itend; ++it) {
514 value = lmm_variable_getvalue(action->getVariable());
516 if (action->getRemains() > 0)
517 value = action->getRemainsNoUpdate() / value;
522 XBT_DEBUG("Updating min (value) with %p: %f", action, min);
525 if ((action->getMaxDuration() >= 0) && (action->getMaxDuration() < min)) {
526 min = action->getMaxDuration();
527 XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
530 XBT_DEBUG("min value : %f", min);
535 void Model::updateActionsState(double now, double delta)
537 if (updateMechanism_ == UM_FULL)
538 updateActionsStateFull(now, delta);
539 else if (updateMechanism_ == UM_LAZY)
540 updateActionsStateLazy(now, delta);
542 xbt_die("Invalid cpu update mechanism!");
545 void Model::updateActionsStateLazy(double /*now*/, double /*delta*/)
550 void Model::updateActionsStateFull(double /*now*/, double /*delta*/)
565 Resource::Resource(Model *model, const char *name)
566 : name_(xbt_strdup(name))
570 Resource::Resource(Model *model, const char *name, lmm_constraint_t constraint)
571 : name_(xbt_strdup(name))
573 , constraint_(constraint)
576 Resource::~Resource() {
577 xbt_free((void*)name_);
580 bool Resource::isOn() const {
583 bool Resource::isOff() const {
587 void Resource::turnOn()
592 void Resource::turnOff()
597 Model *Resource::getModel() const {
601 const char *Resource::getName() const {
605 bool Resource::operator==(const Resource &other) const {
606 return strcmp(name_, other.name_);
609 lmm_constraint_t Resource::getConstraint() const {
620 const char *surf_action_state_names[6] = {
622 "SURF_ACTION_RUNNING",
623 "SURF_ACTION_FAILED",
625 "SURF_ACTION_TO_FREE",
626 "SURF_ACTION_NOT_IN_THE_SYSTEM"
629 /* added to manage the communication action's heap */
630 void surf_action_lmm_update_index_heap(void *action, int i) {
631 static_cast<simgrid::surf::Action*>(action)->updateIndexHeap(i);
637 void Action::initialize(simgrid::surf::Model *model, double cost, bool failed,
641 start_ = surf_get_clock();
646 stateSet_ = getModel()->getFailedActionSet();
648 stateSet_ = getModel()->getRunningActionSet();
650 stateSet_->push_back(*this);
653 Action::Action(simgrid::surf::Model *model, double cost, bool failed)
655 initialize(model, cost, failed);
658 Action::Action(simgrid::surf::Model *model, double cost, bool failed, lmm_variable_t var)
660 initialize(model, cost, failed, var);
667 void Action::finish() {
668 finishTime_ = surf_get_clock();
671 Action::State Action::getState()
673 if (stateSet_ == getModel()->getReadyActionSet())
674 return Action::State::ready;
675 if (stateSet_ == getModel()->getRunningActionSet())
676 return Action::State::running;
677 if (stateSet_ == getModel()->getFailedActionSet())
678 return Action::State::failed;
679 if (stateSet_ == getModel()->getDoneActionSet())
680 return Action::State::done;
681 return Action::State::not_in_the_system;
684 void Action::setState(Action::State state)
686 stateSet_->erase(stateSet_->iterator_to(*this));
688 case Action::State::ready:
689 stateSet_ = getModel()->getReadyActionSet();
691 case Action::State::running:
692 stateSet_ = getModel()->getRunningActionSet();
694 case Action::State::failed:
695 stateSet_ = getModel()->getFailedActionSet();
697 case Action::State::done:
698 stateSet_ = getModel()->getDoneActionSet();
705 stateSet_->push_back(*this);
708 double Action::getBound()
710 return (variable_) ? lmm_variable_getbound(variable_) : 0;
713 void Action::setBound(double bound)
715 XBT_IN("(%p,%g)", this, bound);
717 lmm_update_variable_bound(getModel()->getMaxminSystem(), variable_, bound);
719 if (getModel()->getUpdateMechanism() == UM_LAZY && getLastUpdate()!=surf_get_clock())
720 heapRemove(getModel()->getActionHeap());
724 double Action::getStartTime()
729 double Action::getFinishTime()
731 /* keep the function behavior, some models (cpu_ti) change the finish time before the action end */
732 return remains_ == 0 ? finishTime_ : -1;
735 void Action::setData(void* data)
740 void Action::setCategory(const char *category)
742 XBT_IN("(%p,%s)", this, category);
743 category_ = xbt_strdup(category);
751 void Action::setMaxDuration(double duration)
753 XBT_IN("(%p,%g)", this, duration);
754 maxDuration_ = duration;
755 if (getModel()->getUpdateMechanism() == UM_LAZY) // remove action from the heap
756 heapRemove(getModel()->getActionHeap());
760 void Action::gapRemove() {}
762 void Action::setPriority(double priority)
764 XBT_IN("(%p,%g)", this, priority);
765 priority_ = priority;
766 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority);
768 if (getModel()->getUpdateMechanism() == UM_LAZY)
769 heapRemove(getModel()->getActionHeap());
773 void Action::cancel(){
774 setState(Action::State::failed);
775 if (getModel()->getUpdateMechanism() == UM_LAZY) {
776 if (action_lmm_hook.is_linked())
777 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
778 heapRemove(getModel()->getActionHeap());
785 if (action_hook.is_linked())
786 stateSet_->erase(stateSet_->iterator_to(*this));
788 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
789 if (getModel()->getUpdateMechanism() == UM_LAZY) {
790 /* remove from heap */
791 heapRemove(getModel()->getActionHeap());
792 if (action_lmm_hook.is_linked())
793 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
801 void Action::suspend()
803 XBT_IN("(%p)", this);
804 if (suspended_ != 2) {
805 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
807 if (getModel()->getUpdateMechanism() == UM_LAZY)
808 heapRemove(getModel()->getActionHeap());
813 void Action::resume()
815 XBT_IN("(%p)", this);
816 if (suspended_ != 2) {
817 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority_);
819 if (getModel()->getUpdateMechanism() == UM_LAZY)
820 heapRemove(getModel()->getActionHeap());
825 bool Action::isSuspended()
827 return suspended_ == 1;
829 /* insert action on heap using a given key and a hat (heap_action_type)
830 * a hat can be of three types for communications:
832 * NORMAL = this is a normal heap entry stating the date to finish transmitting
833 * LATENCY = this is a heap entry to warn us when the latency is payed
834 * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached
836 void Action::heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat)
839 xbt_heap_push(heap, this, key);
842 void Action::heapRemove(xbt_heap_t heap)
845 if (indexHeap_ >= 0) {
846 xbt_heap_remove(heap, indexHeap_);
850 void Action::heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat)
853 if (indexHeap_ >= 0) {
854 xbt_heap_update(heap, indexHeap_, key);
856 xbt_heap_push(heap, this, key);
860 void Action::updateIndexHeap(int i) {
864 double Action::getRemains()
866 XBT_IN("(%p)", this);
867 /* update remains before return it */
868 if (getModel()->getUpdateMechanism() == UM_LAZY) /* update remains before return it */
869 updateRemainingLazy(surf_get_clock());
874 double Action::getRemainsNoUpdate()
879 //FIXME split code in the right places
880 void Action::updateRemainingLazy(double now)
884 if(getModel() == surf_network_model)
891 xbt_assert(stateSet_ == getModel()->getRunningActionSet(), "You're updating an action that is not running.");
892 xbt_assert(priority_ > 0, "You're updating an action that seems suspended.");
895 delta = now - lastUpdate_;
898 XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, remains_, lastUpdate_);
899 double_update(&remains_, lastValue_ * delta, sg_surf_precision*sg_maxmin_precision);
901 if (getModel() == surf_cpu_model_pm && TRACE_is_enabled()) {
902 simgrid::surf::Resource *cpu = static_cast<simgrid::surf::Resource*>(
903 lmm_constraint_id(lmm_get_cnst_from_var(getModel()->getMaxminSystem(), getVariable(), 0)));
904 TRACE_surf_host_set_utilization(cpu->getName(), getCategory(), lastValue_, lastUpdate_, now - lastUpdate_);
906 XBT_DEBUG("Updating action(%p): remains is now %f", this, remains_);
909 if(getModel() == surf_network_model)
911 if (maxDuration_ != NO_MAX_DURATION)
912 double_update(&maxDuration_, delta, sg_surf_precision);
914 //FIXME: duplicated code
915 if ((remains_ <= 0) &&
916 (lmm_get_variable_weight(getVariable()) > 0)) {
918 setState(Action::State::done);
919 heapRemove(getModel()->getActionHeap());
920 } else if (((maxDuration_ != NO_MAX_DURATION)
921 && (maxDuration_ <= 0))) {
923 setState(Action::State::done);
924 heapRemove(getModel()->getActionHeap());
929 lastValue_ = lmm_variable_getvalue(getVariable());