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/simix/smx_host_private.h"
16 #include "src/surf/HostImpl.hpp"
17 #include "surf_private.h"
18 #include "surf_routing.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 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_vm_model_description[] = {
103 {"default", "Default vm model.", &surf_vm_model_init_HL13},
104 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
107 s_surf_model_description_t surf_optimization_mode_description[] = {
108 {"Lazy", "Lazy action management (partial invalidation in lmm + heap in action remaining).", nullptr},
109 {"TI", "Trace integration. Highly optimized mode when using availability traces (only available for the Cas01 CPU model for now).", nullptr},
110 {"Full", "Full update of remaining and variables. Slow but may be useful when debugging.", nullptr},
111 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
114 s_surf_model_description_t surf_storage_model_description[] = {
115 {"default", "Simplistic storage model.", &surf_storage_model_init_default},
116 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
119 #if HAVE_THREAD_CONTEXTS
120 static xbt_parmap_t surf_parmap = nullptr; /* parallel map on models */
125 double surf_get_clock()
131 # define FILE_DELIM "\\"
133 # define FILE_DELIM "/" /* FIXME: move to better location */
136 FILE *surf_fopen(const char *name, const char *mode)
139 char *path_elm = nullptr;
141 FILE *file = nullptr;
145 if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
146 return fopen(name, mode);
148 /* search relative files in the path */
149 xbt_dynar_foreach(surf_path, cpt, path_elm) {
150 buff = bprintf("%s" FILE_DELIM "%s", path_elm, name);
151 file = fopen(buff, mode);
163 static const char *disk_drives_letter_table[MAX_DRIVE] = {
164 "A:\\","B:\\","C:\\","D:\\","E:\\","F:\\","G:\\","H:\\","I:\\","J:\\","K:\\","L:\\","M:\\",
165 "N:\\","O:\\","P:\\","Q:\\","R:\\","S:\\","T:\\","U:\\","V:\\","W:\\","X:\\","Y:\\","Z:\\"
170 * Returns the initial path. On Windows the initial path is
171 * the current directory for the current process in the other
172 * case the function returns "./" that represents the current
173 * directory on Unix/Linux platforms.
176 const char *__surf_get_initial_path()
181 char current_directory[MAX_PATH + 1] = { 0 };
182 unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
183 char root[4] = { 0 };
188 strncpy(root, current_directory, 3);
190 for (i = 0; i < MAX_DRIVE; i++) {
191 if (toupper(root[0]) == disk_drives_letter_table[i][0])
192 return disk_drives_letter_table[i];
201 /* The __surf_is_absolute_file_path() returns 1 if
202 * file_path is a absolute file path, in the other
203 * case the function returns 0.
205 int __surf_is_absolute_file_path(const char *file_path)
208 WIN32_FIND_DATA wfd = { 0 };
209 HANDLE hFile = FindFirstFile(file_path, &wfd);
211 if (INVALID_HANDLE_VALUE == hFile)
217 return (file_path[0] == '/');
221 /** Displays the long description of all registered models, and quit */
222 void model_help(const char *category, s_surf_model_description_t * table)
224 printf("Long description of the %s models accepted by this simulator:\n", category);
225 for (int i = 0; table[i].name; i++)
226 printf(" %s: %s\n", table[i].name, table[i].description);
229 int find_model_description(s_surf_model_description_t * table,
233 char *name_list = nullptr;
235 for (i = 0; table[i].name; i++)
236 if (!strcmp(name, table[i].name)) {
240 xbt_die("No model is valid! This is a bug.");
241 name_list = xbt_strdup(table[0].name);
242 for (i = 1; table[i].name; i++) {
243 name_list = (char *) xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 3);
244 strncat(name_list, ", ", 2);
245 strncat(name_list, table[i].name, strlen(table[i].name));
247 xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
251 static inline void surf_storage_free(void *r)
253 delete static_cast<simgrid::surf::Storage*>(r);
256 void sg_version_check(int lib_version_major,int lib_version_minor,int lib_version_patch) {
257 if ((lib_version_major != SIMGRID_VERSION_MAJOR) || (lib_version_minor != SIMGRID_VERSION_MINOR)) {
259 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
260 "and then linked against SimGrid %d.%d.%d. Please fix this.\n",
261 lib_version_major,lib_version_minor,lib_version_patch,
262 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
265 if (lib_version_patch != SIMGRID_VERSION_PATCH) {
266 if(SIMGRID_VERSION_PATCH >= 90 || lib_version_patch >=90){
268 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
269 "and then linked against SimGrid %d.%d.%d. \n"
270 "One of them is a development version, and should not be mixed with the stable release. Please fix this.\n",
271 lib_version_major,lib_version_minor,lib_version_patch,
272 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
276 "Warning: Your program was compiled with SimGrid version %d.%d.%d, "
277 "and then linked against SimGrid %d.%d.%d. Proceeding anyway.\n",
278 lib_version_major,lib_version_minor,lib_version_patch,
279 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
283 void sg_version(int *ver_major,int *ver_minor,int *ver_patch) {
284 *ver_major = SIMGRID_VERSION_MAJOR;
285 *ver_minor = SIMGRID_VERSION_MINOR;
286 *ver_patch = SIMGRID_VERSION_PATCH;
289 void surf_init(int *argc, char **argv)
291 if (USER_HOST_LEVEL != -1) // Already initialized
294 XBT_DEBUG("Create all Libs");
295 USER_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
297 as_router_lib = xbt_lib_new();
298 storage_lib = xbt_lib_new();
299 storage_type_lib = xbt_lib_new();
300 file_lib = xbt_lib_new();
301 watched_hosts_lib = xbt_dict_new_homogeneous(nullptr);
303 XBT_DEBUG("Add routing levels");
304 ROUTING_PROP_ASR_LEVEL = xbt_lib_add_level(as_router_lib, nullptr);
305 ROUTING_ASR_LEVEL = xbt_lib_add_level(as_router_lib, [](void* p) {
306 delete static_cast<simgrid::kernel::routing::NetCard*>(p);
309 XBT_DEBUG("Add SURF levels");
310 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_free);
312 xbt_init(argc, argv);
313 if (!all_existing_models)
314 all_existing_models = new std::vector<simgrid::surf::Model*>();
315 if (!model_list_invoke)
316 model_list_invoke = xbt_dynar_new(sizeof(simgrid::surf::Model*), nullptr);
318 future_evt_set = new simgrid::trace_mgr::future_evt_set();
320 TRACE_add_start_function(TRACE_surf_alloc);
321 TRACE_add_end_function(TRACE_surf_release);
323 sg_config_init(argc, argv);
331 TRACE_end(); /* Just in case it was not called by the upper layer (or there is no upper layer) */
333 xbt_dynar_free(&surf_path);
336 xbt_lib_free(&as_router_lib);
337 xbt_lib_free(&storage_lib);
339 xbt_lib_free(&storage_type_lib);
340 xbt_lib_free(&file_lib);
341 xbt_dict_free(&watched_hosts_lib);
343 for (auto model : *all_existing_models)
345 delete all_existing_models;
346 xbt_dynar_free(&model_list_invoke);
349 simgrid::surf::surfExitCallbacks();
351 if (future_evt_set) {
352 delete future_evt_set;
353 future_evt_set = nullptr;
356 #if HAVE_THREAD_CONTEXTS
357 xbt_parmap_destroy(surf_parmap);
362 simgrid::s4u::Engine::shutdown();
364 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
375 : maxminSystem_(nullptr)
377 readyActionSet_ = new ActionList();
378 runningActionSet_ = new ActionList();
379 failedActionSet_ = new ActionList();
380 doneActionSet_ = new ActionList();
382 modifiedSet_ = nullptr;
383 actionHeap_ = nullptr;
384 updateMechanism_ = UM_UNDEFINED;
385 selectiveUpdate_ = 0;
389 delete readyActionSet_;
390 delete runningActionSet_;
391 delete failedActionSet_;
392 delete doneActionSet_;
395 double Model::nextOccuringEvent(double now)
397 //FIXME: set the good function once and for all
398 if (updateMechanism_ == UM_LAZY)
399 return nextOccuringEventLazy(now);
400 else if (updateMechanism_ == UM_FULL)
401 return nextOccuringEventFull(now);
403 xbt_die("Invalid cpu update mechanism!");
406 double Model::nextOccuringEventLazy(double now)
408 XBT_DEBUG("Before share resources, the size of modified actions set is %zd", modifiedSet_->size());
409 lmm_solve(maxminSystem_);
410 XBT_DEBUG("After share resources, The size of modified actions set is %zd", modifiedSet_->size());
412 while(!modifiedSet_->empty()) {
413 Action *action = &(modifiedSet_->front());
414 modifiedSet_->pop_front();
415 int max_dur_flag = 0;
417 if (action->getStateSet() != runningActionSet_)
420 /* bogus priority, skip it */
421 if (action->getPriority() <= 0 || action->getHat()==LATENCY)
424 action->updateRemainingLazy(now);
427 double share = lmm_variable_getvalue(action->getVariable());
430 double time_to_completion;
431 if (action->getRemains() > 0) {
432 time_to_completion = action->getRemainsNoUpdate() / share;
434 time_to_completion = 0.0;
436 min = now + time_to_completion; // when the task will complete if nothing changes
439 if ((action->getMaxDuration() != NO_MAX_DURATION)
441 || action->getStartTime() +
442 action->getMaxDuration() < min)) {
443 min = action->getStartTime() +
444 action->getMaxDuration(); // when the task will complete anyway because of the deadline if any
449 XBT_DEBUG("Action(%p) corresponds to variable %d", action, action->getVariable()->id_int);
451 XBT_DEBUG("Action(%p) Start %f. May finish at %f (got a share of %f). Max_duration %f", action,
452 action->getStartTime(), min, share,
453 action->getMaxDuration());
456 action->heapUpdate(actionHeap_, min, max_dur_flag ? MAX_DURATION : NORMAL);
457 XBT_DEBUG("Insert at heap action(%p) min %f now %f", action, min,
459 } else DIE_IMPOSSIBLE;
462 //hereafter must have already the min value for this resource model
463 if (xbt_heap_size(actionHeap_) > 0) {
464 double min = xbt_heap_maxkey(actionHeap_) - now;
465 XBT_DEBUG("minimum with the HEAP %f", min);
468 XBT_DEBUG("The HEAP is empty, thus returning -1");
473 double Model::nextOccuringEventFull(double /*now*/) {
474 maxminSystem_->solve_fun(maxminSystem_);
477 for (auto it(getRunningActionSet()->begin()), itend(getRunningActionSet()->end()); it != itend ; ++it) {
478 Action *action = &*it;
479 double value = lmm_variable_getvalue(action->getVariable());
481 if (action->getRemains() > 0)
482 value = action->getRemainsNoUpdate() / value;
485 if (min < 0 || value < min) {
487 XBT_DEBUG("Updating min (value) with %p: %f", action, min);
490 if ((action->getMaxDuration() >= 0) && (min<0 || action->getMaxDuration() < min)) {
491 min = action->getMaxDuration();
492 XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
495 XBT_DEBUG("min value : %f", min);
500 void Model::updateActionsState(double now, double delta)
502 if (updateMechanism_ == UM_FULL)
503 updateActionsStateFull(now, delta);
504 else if (updateMechanism_ == UM_LAZY)
505 updateActionsStateLazy(now, delta);
507 xbt_die("Invalid cpu update mechanism!");
510 void Model::updateActionsStateLazy(double /*now*/, double /*delta*/)
515 void Model::updateActionsStateFull(double /*now*/, double /*delta*/)
530 Resource::Resource(Model* model, const char* name, lmm_constraint_t constraint)
531 : name_(name), model_(model), constraint_(constraint)
534 Resource::~Resource() = default;
536 bool Resource::isOn() const {
539 bool Resource::isOff() const {
543 void Resource::turnOn()
548 void Resource::turnOff()
553 Model *Resource::getModel() const {
557 const char *Resource::getName() const {
558 return name_.c_str();
561 bool Resource::operator==(const Resource &other) const {
562 return name_ == other.name_;
565 lmm_constraint_t Resource::getConstraint() const {
576 const char *surf_action_state_names[6] = {
578 "SURF_ACTION_RUNNING",
579 "SURF_ACTION_FAILED",
581 "SURF_ACTION_TO_FREE",
582 "SURF_ACTION_NOT_IN_THE_SYSTEM"
585 /* added to manage the communication action's heap */
586 void surf_action_lmm_update_index_heap(void *action, int i) {
587 static_cast<simgrid::surf::Action*>(action)->updateIndexHeap(i);
593 Action::Action(simgrid::surf::Model* model, double cost, bool failed) : Action(model, cost, failed, nullptr)
597 Action::Action(simgrid::surf::Model* model, double cost, bool failed, lmm_variable_t var)
598 : remains_(cost), start_(surf_get_clock()), cost_(cost), model_(model), variable_(var)
601 stateSet_ = getModel()->getFailedActionSet();
603 stateSet_ = getModel()->getRunningActionSet();
605 stateSet_->push_back(*this);
612 void Action::finish() {
613 finishTime_ = surf_get_clock();
616 Action::State Action::getState()
618 if (stateSet_ == getModel()->getReadyActionSet())
619 return Action::State::ready;
620 if (stateSet_ == getModel()->getRunningActionSet())
621 return Action::State::running;
622 if (stateSet_ == getModel()->getFailedActionSet())
623 return Action::State::failed;
624 if (stateSet_ == getModel()->getDoneActionSet())
625 return Action::State::done;
626 return Action::State::not_in_the_system;
629 void Action::setState(Action::State state)
631 stateSet_->erase(stateSet_->iterator_to(*this));
633 case Action::State::ready:
634 stateSet_ = getModel()->getReadyActionSet();
636 case Action::State::running:
637 stateSet_ = getModel()->getRunningActionSet();
639 case Action::State::failed:
640 stateSet_ = getModel()->getFailedActionSet();
642 case Action::State::done:
643 stateSet_ = getModel()->getDoneActionSet();
650 stateSet_->push_back(*this);
653 double Action::getBound()
655 return (variable_) ? lmm_variable_getbound(variable_) : 0;
658 void Action::setBound(double bound)
660 XBT_IN("(%p,%g)", this, bound);
662 lmm_update_variable_bound(getModel()->getMaxminSystem(), variable_, bound);
664 if (getModel()->getUpdateMechanism() == UM_LAZY && getLastUpdate()!=surf_get_clock())
665 heapRemove(getModel()->getActionHeap());
669 double Action::getStartTime()
674 double Action::getFinishTime()
676 /* keep the function behavior, some models (cpu_ti) change the finish time before the action end */
677 return remains_ == 0 ? finishTime_ : -1;
680 void Action::setData(void* data)
685 void Action::setCategory(const char *category)
687 category_ = xbt_strdup(category);
694 void Action::setMaxDuration(double duration)
696 maxDuration_ = duration;
697 if (getModel()->getUpdateMechanism() == UM_LAZY) // remove action from the heap
698 heapRemove(getModel()->getActionHeap());
701 void Action::gapRemove() {}
703 void Action::setPriority(double priority)
705 XBT_IN("(%p,%g)", this, priority);
706 priority_ = priority;
707 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority);
709 if (getModel()->getUpdateMechanism() == UM_LAZY)
710 heapRemove(getModel()->getActionHeap());
714 void Action::cancel(){
715 setState(Action::State::failed);
716 if (getModel()->getUpdateMechanism() == UM_LAZY) {
717 if (action_lmm_hook.is_linked())
718 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
719 heapRemove(getModel()->getActionHeap());
726 if (action_hook.is_linked())
727 stateSet_->erase(stateSet_->iterator_to(*this));
729 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
730 if (getModel()->getUpdateMechanism() == UM_LAZY) {
731 /* remove from heap */
732 heapRemove(getModel()->getActionHeap());
733 if (action_lmm_hook.is_linked())
734 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
742 void Action::suspend()
744 XBT_IN("(%p)", this);
745 if (suspended_ != 2) {
746 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
747 if (getModel()->getUpdateMechanism() == UM_LAZY){
748 heapRemove(getModel()->getActionHeap());
749 if (getModel()->getUpdateMechanism() == UM_LAZY && stateSet_ == getModel()->getRunningActionSet() && priority_ > 0){
750 //If we have a lazy model, we need to update the remaining value accordingly
751 updateRemainingLazy(surf_get_clock());
759 void Action::resume()
761 XBT_IN("(%p)", this);
762 if (suspended_ != 2) {
763 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority_);
765 if (getModel()->getUpdateMechanism() == UM_LAZY)
766 heapRemove(getModel()->getActionHeap());
771 bool Action::isSuspended()
773 return suspended_ == 1;
775 /* insert action on heap using a given key and a hat (heap_action_type)
776 * a hat can be of three types for communications:
778 * NORMAL = this is a normal heap entry stating the date to finish transmitting
779 * LATENCY = this is a heap entry to warn us when the latency is payed
780 * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached
782 void Action::heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat)
785 xbt_heap_push(heap, this, key);
788 void Action::heapRemove(xbt_heap_t heap)
791 if (indexHeap_ >= 0) {
792 xbt_heap_remove(heap, indexHeap_);
796 void Action::heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat)
799 if (indexHeap_ >= 0) {
800 xbt_heap_update(heap, indexHeap_, key);
802 xbt_heap_push(heap, this, key);
806 void Action::updateIndexHeap(int i) {
810 double Action::getRemains()
812 XBT_IN("(%p)", this);
813 /* update remains before return it */
814 if (getModel()->getUpdateMechanism() == UM_LAZY) /* update remains before return it */
815 updateRemainingLazy(surf_get_clock());
820 double Action::getRemainsNoUpdate()
825 //FIXME split code in the right places
826 void Action::updateRemainingLazy(double now)
830 if(getModel() == surf_network_model)
837 xbt_assert(stateSet_ == getModel()->getRunningActionSet(), "You're updating an action that is not running.");
838 xbt_assert(priority_ > 0, "You're updating an action that seems suspended.");
841 delta = now - lastUpdate_;
844 XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, remains_, lastUpdate_);
845 double_update(&remains_, lastValue_ * delta, sg_surf_precision*sg_maxmin_precision);
847 if (getModel() == surf_cpu_model_pm && TRACE_is_enabled()) {
848 simgrid::surf::Resource *cpu = static_cast<simgrid::surf::Resource*>(
849 lmm_constraint_id(lmm_get_cnst_from_var(getModel()->getMaxminSystem(), getVariable(), 0)));
850 TRACE_surf_host_set_utilization(cpu->getName(), getCategory(), lastValue_, lastUpdate_, now - lastUpdate_);
852 XBT_DEBUG("Updating action(%p): remains is now %f", this, remains_);
855 if(getModel() == surf_network_model)
857 if (maxDuration_ != NO_MAX_DURATION)
858 double_update(&maxDuration_, delta, sg_surf_precision);
860 //FIXME: duplicated code
861 if ((remains_ <= 0) &&
862 (lmm_get_variable_weight(getVariable()) > 0)) {
864 setState(Action::State::done);
865 heapRemove(getModel()->getActionHeap());
866 } else if (((maxDuration_ != NO_MAX_DURATION)
867 && (maxDuration_ <= 0))) {
869 setState(Action::State::done);
870 heapRemove(getModel()->getActionHeap());
875 lastValue_ = lmm_variable_getvalue(getVariable());