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 "surf_interface.hpp"
8 #include "cpu_interface.hpp"
10 #include "network_interface.hpp"
11 #include "simgrid/s4u/engine.hpp"
12 #include "simgrid/sg_config.h"
13 #include "src/instr/instr_private.h" // TRACE_is_enabled(). FIXME: remove by subscribing tracing to the surf signals
14 #include "src/internal_config.h"
15 #include "src/kernel/routing/NetCard.hpp"
16 #include "src/simix/smx_host_private.h"
17 #include "src/surf/HostImpl.hpp"
18 #include "surf_private.h"
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 std::vector<surf_model_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 std::vector<simgrid::s4u::Host*> host_that_restart;
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},
66 {"NS3", "Network pseudo-model using the NS3 tcp model instead of an analytic model", &surf_network_model_init_NS3},
67 {"Reno", "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_Reno},
69 {"Reno2", "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_Reno2},
71 {"Vegas", "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_Vegas},
73 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
77 void surf_network_model_init_SMPI() {
78 xbt_die("Please activate SMPI support in cmake to use the SMPI network model.");
80 void surf_network_model_init_IB() {
81 xbt_die("Please activate SMPI support in cmake to use the IB network model.");
85 void surf_network_model_init_NS3() {
86 xbt_die("Please activate NS3 support in cmake and install the dependencies to use the NS3 network model.");
90 s_surf_model_description_t surf_cpu_model_description[] = {
91 {"Cas01", "Simplistic CPU model (time=size/power).", &surf_cpu_model_init_Cas01},
92 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
95 s_surf_model_description_t surf_host_model_description[] = {
96 {"default", "Default host model. Currently, CPU:Cas01 and network:LV08 (with cross traffic enabled)", &surf_host_model_init_current_default},
97 {"compound", "Host model that is automatically chosen if you change the network and CPU models", &surf_host_model_init_compound},
98 {"ptask_L07", "Host model somehow similar to Cas01+CM02 but allowing parallel tasks", &surf_host_model_init_ptask_L07},
99 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
102 s_surf_model_description_t surf_optimization_mode_description[] = {
103 {"Lazy", "Lazy action management (partial invalidation in lmm + heap in action remaining).", nullptr},
104 {"TI", "Trace integration. Highly optimized mode when using availability traces (only available for the Cas01 CPU model for now).", nullptr},
105 {"Full", "Full update of remaining and variables. Slow but may be useful when debugging.", nullptr},
106 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
109 s_surf_model_description_t surf_storage_model_description[] = {
110 {"default", "Simplistic storage model.", &surf_storage_model_init_default},
111 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
114 #if HAVE_THREAD_CONTEXTS
115 static xbt_parmap_t surf_parmap = nullptr; /* parallel map on models */
120 double surf_get_clock()
126 # define FILE_DELIM "\\"
128 # define FILE_DELIM "/" /* FIXME: move to better location */
131 FILE *surf_fopen(const char *name, const char *mode)
134 char *path_elm = nullptr;
136 FILE *file = nullptr;
140 if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
141 return fopen(name, mode);
143 /* search relative files in the path */
144 xbt_dynar_foreach(surf_path, cpt, path_elm) {
145 buff = bprintf("%s" FILE_DELIM "%s", path_elm, name);
146 file = fopen(buff, mode);
158 static const char *disk_drives_letter_table[MAX_DRIVE] = {
159 "A:\\","B:\\","C:\\","D:\\","E:\\","F:\\","G:\\","H:\\","I:\\","J:\\","K:\\","L:\\","M:\\",
160 "N:\\","O:\\","P:\\","Q:\\","R:\\","S:\\","T:\\","U:\\","V:\\","W:\\","X:\\","Y:\\","Z:\\"
165 * Returns the initial path. On Windows the initial path is
166 * the current directory for the current process in the other
167 * case the function returns "./" that represents the current
168 * directory on Unix/Linux platforms.
171 const char *__surf_get_initial_path()
176 char current_directory[MAX_PATH + 1] = { 0 };
177 unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
178 char root[4] = { 0 };
183 strncpy(root, current_directory, 3);
185 for (i = 0; i < MAX_DRIVE; i++) {
186 if (toupper(root[0]) == disk_drives_letter_table[i][0])
187 return disk_drives_letter_table[i];
196 /* The __surf_is_absolute_file_path() returns 1 if
197 * file_path is a absolute file path, in the other
198 * case the function returns 0.
200 int __surf_is_absolute_file_path(const char *file_path)
203 WIN32_FIND_DATA wfd = { 0 };
204 HANDLE hFile = FindFirstFile(file_path, &wfd);
206 if (INVALID_HANDLE_VALUE == hFile)
212 return (file_path[0] == '/');
216 /** Displays the long description of all registered models, and quit */
217 void model_help(const char *category, s_surf_model_description_t * table)
219 printf("Long description of the %s models accepted by this simulator:\n", category);
220 for (int i = 0; table[i].name; i++)
221 printf(" %s: %s\n", table[i].name, table[i].description);
224 int find_model_description(s_surf_model_description_t * table,
228 char *name_list = nullptr;
230 for (i = 0; table[i].name; i++)
231 if (!strcmp(name, table[i].name)) {
235 xbt_die("No model is valid! This is a bug.");
236 name_list = xbt_strdup(table[0].name);
237 for (i = 1; table[i].name; i++) {
238 name_list = (char *) xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 3);
239 strncat(name_list, ", ", 2);
240 strncat(name_list, table[i].name, strlen(table[i].name));
242 xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
246 static inline void surf_storage_free(void *r)
248 delete static_cast<simgrid::surf::Storage*>(r);
251 void sg_version_check(int lib_version_major,int lib_version_minor,int lib_version_patch) {
252 if ((lib_version_major != SIMGRID_VERSION_MAJOR) || (lib_version_minor != SIMGRID_VERSION_MINOR)) {
254 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
255 "and then linked against SimGrid %d.%d.%d. Please fix this.\n",
256 lib_version_major,lib_version_minor,lib_version_patch,
257 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
260 if (lib_version_patch != SIMGRID_VERSION_PATCH) {
261 if(SIMGRID_VERSION_PATCH >= 90 || lib_version_patch >=90){
263 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
264 "and then linked against SimGrid %d.%d.%d. \n"
265 "One of them is a development version, and should not be mixed with the stable release. Please fix this.\n",
266 lib_version_major,lib_version_minor,lib_version_patch,
267 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
271 "Warning: Your program was compiled with SimGrid version %d.%d.%d, "
272 "and then linked against SimGrid %d.%d.%d. Proceeding anyway.\n",
273 lib_version_major,lib_version_minor,lib_version_patch,
274 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
278 void sg_version(int *ver_major,int *ver_minor,int *ver_patch) {
279 *ver_major = SIMGRID_VERSION_MAJOR;
280 *ver_minor = SIMGRID_VERSION_MINOR;
281 *ver_patch = SIMGRID_VERSION_PATCH;
284 void surf_init(int *argc, char **argv)
286 if (USER_HOST_LEVEL != -1) // Already initialized
289 XBT_DEBUG("Create all Libs");
290 USER_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
292 as_router_lib = xbt_lib_new();
293 storage_lib = xbt_lib_new();
294 storage_type_lib = xbt_lib_new();
295 file_lib = xbt_lib_new();
296 watched_hosts_lib = xbt_dict_new_homogeneous(nullptr);
298 XBT_DEBUG("Add routing levels");
299 ROUTING_PROP_ASR_LEVEL = xbt_lib_add_level(as_router_lib, nullptr);
300 ROUTING_ASR_LEVEL = xbt_lib_add_level(as_router_lib, [](void* p) {
301 delete static_cast<simgrid::kernel::routing::NetCard*>(p);
304 XBT_DEBUG("Add SURF levels");
305 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_free);
307 xbt_init(argc, argv);
308 if (!all_existing_models)
309 all_existing_models = new std::vector<simgrid::surf::Model*>();
310 if (!model_list_invoke)
311 model_list_invoke = xbt_dynar_new(sizeof(simgrid::surf::Model*), nullptr);
313 future_evt_set = new simgrid::trace_mgr::future_evt_set();
315 TRACE_add_start_function(TRACE_surf_alloc);
316 TRACE_add_end_function(TRACE_surf_release);
318 sg_config_init(argc, argv);
326 TRACE_end(); /* Just in case it was not called by the upper layer (or there is no upper layer) */
328 xbt_dynar_free(&surf_path);
331 xbt_lib_free(&as_router_lib);
332 xbt_lib_free(&storage_lib);
334 xbt_lib_free(&storage_type_lib);
335 xbt_lib_free(&file_lib);
336 xbt_dict_free(&watched_hosts_lib);
338 for (auto model : *all_existing_models)
340 delete all_existing_models;
341 xbt_dynar_free(&model_list_invoke);
343 simgrid::surf::surfExitCallbacks();
345 if (future_evt_set) {
346 delete future_evt_set;
347 future_evt_set = nullptr;
350 #if HAVE_THREAD_CONTEXTS
351 xbt_parmap_destroy(surf_parmap);
356 simgrid::s4u::Engine::shutdown();
358 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
369 : maxminSystem_(nullptr)
371 readyActionSet_ = new ActionList();
372 runningActionSet_ = new ActionList();
373 failedActionSet_ = new ActionList();
374 doneActionSet_ = new ActionList();
376 modifiedSet_ = nullptr;
377 actionHeap_ = nullptr;
378 updateMechanism_ = UM_UNDEFINED;
379 selectiveUpdate_ = 0;
383 delete readyActionSet_;
384 delete runningActionSet_;
385 delete failedActionSet_;
386 delete doneActionSet_;
389 double Model::nextOccuringEvent(double now)
391 //FIXME: set the good function once and for all
392 if (updateMechanism_ == UM_LAZY)
393 return nextOccuringEventLazy(now);
394 else if (updateMechanism_ == UM_FULL)
395 return nextOccuringEventFull(now);
397 xbt_die("Invalid cpu update mechanism!");
400 double Model::nextOccuringEventLazy(double now)
402 XBT_DEBUG("Before share resources, the size of modified actions set is %zd", modifiedSet_->size());
403 lmm_solve(maxminSystem_);
404 XBT_DEBUG("After share resources, The size of modified actions set is %zd", modifiedSet_->size());
406 while(!modifiedSet_->empty()) {
407 Action *action = &(modifiedSet_->front());
408 modifiedSet_->pop_front();
409 int max_dur_flag = 0;
411 if (action->getStateSet() != runningActionSet_)
414 /* bogus priority, skip it */
415 if (action->getPriority() <= 0 || action->getHat()==LATENCY)
418 action->updateRemainingLazy(now);
421 double share = lmm_variable_getvalue(action->getVariable());
424 double time_to_completion;
425 if (action->getRemains() > 0) {
426 time_to_completion = action->getRemainsNoUpdate() / share;
428 time_to_completion = 0.0;
430 min = now + time_to_completion; // when the task will complete if nothing changes
433 if ((action->getMaxDuration() != NO_MAX_DURATION)
435 || action->getStartTime() +
436 action->getMaxDuration() < min)) {
437 min = action->getStartTime() +
438 action->getMaxDuration(); // when the task will complete anyway because of the deadline if any
443 XBT_DEBUG("Action(%p) corresponds to variable %d", action, action->getVariable()->id_int);
445 XBT_DEBUG("Action(%p) Start %f. May finish at %f (got a share of %f). Max_duration %f", action,
446 action->getStartTime(), min, share,
447 action->getMaxDuration());
450 action->heapUpdate(actionHeap_, min, max_dur_flag ? MAX_DURATION : NORMAL);
451 XBT_DEBUG("Insert at heap action(%p) min %f now %f", action, min,
453 } else DIE_IMPOSSIBLE;
456 //hereafter must have already the min value for this resource model
457 if (xbt_heap_size(actionHeap_) > 0) {
458 double min = xbt_heap_maxkey(actionHeap_) - now;
459 XBT_DEBUG("minimum with the HEAP %f", min);
462 XBT_DEBUG("The HEAP is empty, thus returning -1");
467 double Model::nextOccuringEventFull(double /*now*/) {
468 maxminSystem_->solve_fun(maxminSystem_);
471 for (auto it(getRunningActionSet()->begin()), itend(getRunningActionSet()->end()); it != itend ; ++it) {
472 Action *action = &*it;
473 double value = lmm_variable_getvalue(action->getVariable());
475 if (action->getRemains() > 0)
476 value = action->getRemainsNoUpdate() / value;
479 if (min < 0 || value < min) {
481 XBT_DEBUG("Updating min (value) with %p: %f", action, min);
484 if ((action->getMaxDuration() >= 0) && (min<0 || action->getMaxDuration() < min)) {
485 min = action->getMaxDuration();
486 XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
489 XBT_DEBUG("min value : %f", min);
494 void Model::updateActionsState(double now, double delta)
496 if (updateMechanism_ == UM_FULL)
497 updateActionsStateFull(now, delta);
498 else if (updateMechanism_ == UM_LAZY)
499 updateActionsStateLazy(now, delta);
501 xbt_die("Invalid cpu update mechanism!");
504 void Model::updateActionsStateLazy(double /*now*/, double /*delta*/)
509 void Model::updateActionsStateFull(double /*now*/, double /*delta*/)
524 Resource::Resource(Model* model, const char* name, lmm_constraint_t constraint)
525 : name_(name), model_(model), constraint_(constraint)
528 Resource::~Resource() = default;
530 bool Resource::isOn() const {
533 bool Resource::isOff() const {
537 void Resource::turnOn()
542 void Resource::turnOff()
547 Model *Resource::getModel() const {
551 const char *Resource::getName() const {
552 return name_.c_str();
555 bool Resource::operator==(const Resource &other) const {
556 return name_ == other.name_;
559 lmm_constraint_t Resource::getConstraint() const {
570 const char *surf_action_state_names[6] = {
572 "SURF_ACTION_RUNNING",
573 "SURF_ACTION_FAILED",
575 "SURF_ACTION_TO_FREE",
576 "SURF_ACTION_NOT_IN_THE_SYSTEM"
579 /* added to manage the communication action's heap */
580 void surf_action_lmm_update_index_heap(void *action, int i) {
581 static_cast<simgrid::surf::Action*>(action)->updateIndexHeap(i);
587 Action::Action(simgrid::surf::Model* model, double cost, bool failed) : Action(model, cost, failed, nullptr)
591 Action::Action(simgrid::surf::Model* model, double cost, bool failed, lmm_variable_t var)
592 : remains_(cost), start_(surf_get_clock()), cost_(cost), model_(model), variable_(var)
595 stateSet_ = getModel()->getFailedActionSet();
597 stateSet_ = getModel()->getRunningActionSet();
599 stateSet_->push_back(*this);
606 void Action::finish() {
607 finishTime_ = surf_get_clock();
610 Action::State Action::getState()
612 if (stateSet_ == getModel()->getReadyActionSet())
613 return Action::State::ready;
614 if (stateSet_ == getModel()->getRunningActionSet())
615 return Action::State::running;
616 if (stateSet_ == getModel()->getFailedActionSet())
617 return Action::State::failed;
618 if (stateSet_ == getModel()->getDoneActionSet())
619 return Action::State::done;
620 return Action::State::not_in_the_system;
623 void Action::setState(Action::State state)
625 stateSet_->erase(stateSet_->iterator_to(*this));
627 case Action::State::ready:
628 stateSet_ = getModel()->getReadyActionSet();
630 case Action::State::running:
631 stateSet_ = getModel()->getRunningActionSet();
633 case Action::State::failed:
634 stateSet_ = getModel()->getFailedActionSet();
636 case Action::State::done:
637 stateSet_ = getModel()->getDoneActionSet();
644 stateSet_->push_back(*this);
647 double Action::getBound()
649 return (variable_) ? lmm_variable_getbound(variable_) : 0;
652 void Action::setBound(double bound)
654 XBT_IN("(%p,%g)", this, bound);
656 lmm_update_variable_bound(getModel()->getMaxminSystem(), variable_, bound);
658 if (getModel()->getUpdateMechanism() == UM_LAZY && getLastUpdate()!=surf_get_clock())
659 heapRemove(getModel()->getActionHeap());
663 double Action::getStartTime()
668 double Action::getFinishTime()
670 /* keep the function behavior, some models (cpu_ti) change the finish time before the action end */
671 return remains_ == 0 ? finishTime_ : -1;
674 void Action::setData(void* data)
679 void Action::setCategory(const char *category)
681 category_ = xbt_strdup(category);
688 void Action::setMaxDuration(double duration)
690 maxDuration_ = duration;
691 if (getModel()->getUpdateMechanism() == UM_LAZY) // remove action from the heap
692 heapRemove(getModel()->getActionHeap());
695 void Action::gapRemove() {}
697 void Action::setPriority(double priority)
699 XBT_IN("(%p,%g)", this, priority);
700 priority_ = priority;
701 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority);
703 if (getModel()->getUpdateMechanism() == UM_LAZY)
704 heapRemove(getModel()->getActionHeap());
708 void Action::cancel(){
709 setState(Action::State::failed);
710 if (getModel()->getUpdateMechanism() == UM_LAZY) {
711 if (action_lmm_hook.is_linked())
712 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
713 heapRemove(getModel()->getActionHeap());
720 if (action_hook.is_linked())
721 stateSet_->erase(stateSet_->iterator_to(*this));
723 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
724 if (getModel()->getUpdateMechanism() == UM_LAZY) {
725 /* remove from heap */
726 heapRemove(getModel()->getActionHeap());
727 if (action_lmm_hook.is_linked())
728 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
736 void Action::suspend()
738 XBT_IN("(%p)", this);
739 if (suspended_ != 2) {
740 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
741 if (getModel()->getUpdateMechanism() == UM_LAZY){
742 heapRemove(getModel()->getActionHeap());
743 if (getModel()->getUpdateMechanism() == UM_LAZY && stateSet_ == getModel()->getRunningActionSet() && priority_ > 0){
744 //If we have a lazy model, we need to update the remaining value accordingly
745 updateRemainingLazy(surf_get_clock());
753 void Action::resume()
755 XBT_IN("(%p)", this);
756 if (suspended_ != 2) {
757 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority_);
759 if (getModel()->getUpdateMechanism() == UM_LAZY)
760 heapRemove(getModel()->getActionHeap());
765 bool Action::isSuspended()
767 return suspended_ == 1;
769 /* insert action on heap using a given key and a hat (heap_action_type)
770 * a hat can be of three types for communications:
772 * NORMAL = this is a normal heap entry stating the date to finish transmitting
773 * LATENCY = this is a heap entry to warn us when the latency is payed
774 * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached
776 void Action::heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat)
779 xbt_heap_push(heap, this, key);
782 void Action::heapRemove(xbt_heap_t heap)
785 if (indexHeap_ >= 0) {
786 xbt_heap_remove(heap, indexHeap_);
790 void Action::heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat)
793 if (indexHeap_ >= 0) {
794 xbt_heap_update(heap, indexHeap_, key);
796 xbt_heap_push(heap, this, key);
800 void Action::updateIndexHeap(int i) {
804 double Action::getRemains()
806 XBT_IN("(%p)", this);
807 /* update remains before return it */
808 if (getModel()->getUpdateMechanism() == UM_LAZY) /* update remains before return it */
809 updateRemainingLazy(surf_get_clock());
814 double Action::getRemainsNoUpdate()
819 //FIXME split code in the right places
820 void Action::updateRemainingLazy(double now)
824 if(getModel() == surf_network_model)
831 xbt_assert(stateSet_ == getModel()->getRunningActionSet(), "You're updating an action that is not running.");
832 xbt_assert(priority_ > 0, "You're updating an action that seems suspended.");
835 delta = now - lastUpdate_;
838 XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, remains_, lastUpdate_);
839 double_update(&remains_, lastValue_ * delta, sg_surf_precision*sg_maxmin_precision);
841 if (getModel() == surf_cpu_model_pm && TRACE_is_enabled()) {
842 simgrid::surf::Resource *cpu = static_cast<simgrid::surf::Resource*>(
843 lmm_constraint_id(lmm_get_cnst_from_var(getModel()->getMaxminSystem(), getVariable(), 0)));
844 TRACE_surf_host_set_utilization(cpu->getName(), getCategory(), lastValue_, lastUpdate_, now - lastUpdate_);
846 XBT_DEBUG("Updating action(%p): remains is now %f", this, remains_);
849 if(getModel() == surf_network_model)
851 if (maxDuration_ != NO_MAX_DURATION)
852 double_update(&maxDuration_, delta, sg_surf_precision);
854 //FIXME: duplicated code
855 if ((remains_ <= 0) &&
856 (lmm_get_variable_weight(getVariable()) > 0)) {
858 setState(Action::State::done);
859 heapRemove(getModel()->getActionHeap());
860 } else if (((maxDuration_ != NO_MAX_DURATION)
861 && (maxDuration_ <= 0))) {
863 setState(Action::State::done);
864 heapRemove(getModel()->getActionHeap());
869 lastValue_ = lmm_variable_getvalue(getVariable());