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/NetPoint.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 std::vector<surf_model_t> * all_existing_models = nullptr; /* to destroy models correctly */
30 simgrid::trace_mgr::future_evt_set *future_evt_set = nullptr;
31 xbt_dynar_t surf_path = nullptr;
32 std::vector<simgrid::s4u::Host*> host_that_restart;
33 xbt_dict_t watched_hosts_lib;
38 simgrid::xbt::signal<void(void)> surfExitCallbacks;
43 #include <simgrid/plugins/energy.h> // FIXME: this plugin should not be linked to the core
45 s_surf_model_description_t surf_plugin_description[] = {
46 {"Energy", "Cpu energy consumption.", &sg_host_energy_plugin_init},
47 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
50 /* Don't forget to update the option description in smx_config when you change this */
51 s_surf_model_description_t surf_network_model_description[] = {
52 {"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). ",
53 &surf_network_model_init_LegrandVelho},
55 "Simplistic network model where all communication take a constant time (one second). This model provides the lowest realism, but is (marginally) faster.",
56 &surf_network_model_init_Constant},
57 {"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)",
58 &surf_network_model_init_SMPI},
59 {"IB", "Realistic network model specifically tailored for HPC settings, with Infiniband contention model",
60 &surf_network_model_init_IB},
61 {"CM02", "Legacy network analytic model (Very similar to LV08, but without corrective factors. The timings of small messages are thus poorly modeled).",
62 &surf_network_model_init_CM02},
63 {"NS3", "Network pseudo-model using the NS3 tcp model instead of an analytic model", &surf_network_model_init_NS3},
64 {"Reno", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
65 &surf_network_model_init_Reno},
66 {"Reno2", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
67 &surf_network_model_init_Reno2},
68 {"Vegas", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
69 &surf_network_model_init_Vegas},
70 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
74 void surf_network_model_init_SMPI() {
75 xbt_die("Please activate SMPI support in cmake to use the SMPI network model.");
77 void surf_network_model_init_IB() {
78 xbt_die("Please activate SMPI support in cmake to use the IB network model.");
82 void surf_network_model_init_NS3() {
83 xbt_die("Please activate NS3 support in cmake and install the dependencies to use the NS3 network model.");
87 s_surf_model_description_t surf_cpu_model_description[] = {
88 {"Cas01", "Simplistic CPU model (time=size/power).", &surf_cpu_model_init_Cas01},
89 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
92 s_surf_model_description_t surf_host_model_description[] = {
93 {"default", "Default host model. Currently, CPU:Cas01 and network:LV08 (with cross traffic enabled)", &surf_host_model_init_current_default},
94 {"compound", "Host model that is automatically chosen if you change the network and CPU models", &surf_host_model_init_compound},
95 {"ptask_L07", "Host model somehow similar to Cas01+CM02 but allowing parallel tasks", &surf_host_model_init_ptask_L07},
96 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
99 s_surf_model_description_t surf_optimization_mode_description[] = {
100 {"Lazy", "Lazy action management (partial invalidation in lmm + heap in action remaining).", nullptr},
101 {"TI", "Trace integration. Highly optimized mode when using availability traces (only available for the Cas01 CPU model for now).", nullptr},
102 {"Full", "Full update of remaining and variables. Slow but may be useful when debugging.", nullptr},
103 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
106 s_surf_model_description_t surf_storage_model_description[] = {
107 {"default", "Simplistic storage model.", &surf_storage_model_init_default},
108 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
111 #if HAVE_THREAD_CONTEXTS
112 static xbt_parmap_t surf_parmap = nullptr; /* parallel map on models */
117 double surf_get_clock()
123 # define FILE_DELIM "\\"
125 # define FILE_DELIM "/" /* FIXME: move to better location */
128 FILE *surf_fopen(const char *name, const char *mode)
131 char *path_elm = nullptr;
133 FILE *file = nullptr;
137 if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
138 return fopen(name, mode);
140 /* search relative files in the path */
141 xbt_dynar_foreach(surf_path, cpt, path_elm) {
142 buff = bprintf("%s" FILE_DELIM "%s", path_elm, name);
143 file = fopen(buff, mode);
155 static const char *disk_drives_letter_table[MAX_DRIVE] = {
156 "A:\\","B:\\","C:\\","D:\\","E:\\","F:\\","G:\\","H:\\","I:\\","J:\\","K:\\","L:\\","M:\\",
157 "N:\\","O:\\","P:\\","Q:\\","R:\\","S:\\","T:\\","U:\\","V:\\","W:\\","X:\\","Y:\\","Z:\\"
162 * Returns the initial path. On Windows the initial path is
163 * the current directory for the current process in the other
164 * case the function returns "./" that represents the current
165 * directory on Unix/Linux platforms.
168 const char *__surf_get_initial_path()
173 char current_directory[MAX_PATH + 1] = { 0 };
174 unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
175 char root[4] = { 0 };
180 strncpy(root, current_directory, 3);
182 for (i = 0; i < MAX_DRIVE; i++) {
183 if (toupper(root[0]) == disk_drives_letter_table[i][0])
184 return disk_drives_letter_table[i];
193 /* The __surf_is_absolute_file_path() returns 1 if
194 * file_path is a absolute file path, in the other
195 * case the function returns 0.
197 int __surf_is_absolute_file_path(const char *file_path)
200 WIN32_FIND_DATA wfd = { 0 };
201 HANDLE hFile = FindFirstFile(file_path, &wfd);
203 if (INVALID_HANDLE_VALUE == hFile)
209 return (file_path[0] == '/');
213 /** Displays the long description of all registered models, and quit */
214 void model_help(const char *category, s_surf_model_description_t * table)
216 printf("Long description of the %s models accepted by this simulator:\n", category);
217 for (int i = 0; table[i].name; i++)
218 printf(" %s: %s\n", table[i].name, table[i].description);
221 int find_model_description(s_surf_model_description_t * table,
225 char *name_list = nullptr;
227 for (i = 0; table[i].name; i++)
228 if (!strcmp(name, table[i].name)) {
232 xbt_die("No model is valid! This is a bug.");
233 name_list = xbt_strdup(table[0].name);
234 for (i = 1; table[i].name; i++) {
235 name_list = (char *) xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 3);
236 strncat(name_list, ", ", 2);
237 strncat(name_list, table[i].name, strlen(table[i].name));
239 xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
243 static inline void surf_storage_free(void *r)
245 delete static_cast<simgrid::surf::Storage*>(r);
248 void sg_version_check(int lib_version_major,int lib_version_minor,int lib_version_patch) {
249 if ((lib_version_major != SIMGRID_VERSION_MAJOR) || (lib_version_minor != SIMGRID_VERSION_MINOR)) {
251 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
252 "and then linked against SimGrid %d.%d.%d. Please fix this.\n",
253 lib_version_major,lib_version_minor,lib_version_patch,
254 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
257 if (lib_version_patch != SIMGRID_VERSION_PATCH) {
258 if(SIMGRID_VERSION_PATCH >= 90 || lib_version_patch >=90){
260 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
261 "and then linked against SimGrid %d.%d.%d. \n"
262 "One of them is a development version, and should not be mixed with the stable release. Please fix this.\n",
263 lib_version_major,lib_version_minor,lib_version_patch,
264 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
268 "Warning: Your program was compiled with SimGrid version %d.%d.%d, "
269 "and then linked against SimGrid %d.%d.%d. Proceeding anyway.\n",
270 lib_version_major,lib_version_minor,lib_version_patch,
271 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
275 void sg_version_get(int* ver_major, int* ver_minor, int* ver_patch)
277 *ver_major = SIMGRID_VERSION_MAJOR;
278 *ver_minor = SIMGRID_VERSION_MINOR;
279 *ver_patch = SIMGRID_VERSION_PATCH;
284 std::printf("This program was linked against %s (git: %s), found in %s.\n",
285 SIMGRID_VERSION_STRING, SIMGRID_GIT_VERSION, SIMGRID_INSTALL_PREFIX);
288 std::printf(" Model-checking support compiled in.\n");
290 std::printf(" Model-checking support disabled at compilation.\n");
294 std::printf(" NS3 support compiled in.\n");
296 std::printf(" NS3 support disabled at compilation.\n");
300 std::printf(" Jedule support compiled in.\n");
302 std::printf(" Jedule support disabled at compilation.\n");
306 std::printf(" Lua support compiled in.\n");
308 std::printf(" Lua support disabled at compilation.\n");
312 std::printf(" Mallocator support compiled in.\n");
314 std::printf(" Mallocator support disabled at compilation.\n");
317 std::printf("\nTo cite SimGrid in a publication, please use:\n"
318 " Henri Casanova, Arnaud Giersch, Arnaud Legrand, Martin Quinson, Frédéric Suter. \n"
319 " Versatile, Scalable, and Accurate Simulation of Distributed Applications and Platforms. \n"
320 " Journal of Parallel and Distributed Computing, Elsevier, 2014, 74 (10), pp.2899-2917.\n");
321 std::printf("The pdf file and a BibTeX entry for LaTeX users can be found at http://hal.inria.fr/hal-01017319\n");
324 void surf_init(int *argc, char **argv)
326 if (USER_HOST_LEVEL != -1) // Already initialized
329 XBT_DEBUG("Create all Libs");
330 USER_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
332 storage_lib = xbt_lib_new();
333 storage_type_lib = xbt_lib_new();
334 file_lib = xbt_lib_new();
335 watched_hosts_lib = xbt_dict_new_homogeneous(nullptr);
337 XBT_DEBUG("Add SURF levels");
338 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_free);
340 xbt_init(argc, argv);
341 if (!all_existing_models)
342 all_existing_models = new std::vector<simgrid::surf::Model*>();
344 future_evt_set = new simgrid::trace_mgr::future_evt_set();
346 TRACE_add_start_function(TRACE_surf_alloc);
347 TRACE_add_end_function(TRACE_surf_release);
349 sg_config_init(argc, argv);
357 TRACE_end(); /* Just in case it was not called by the upper layer (or there is no upper layer) */
359 xbt_dynar_free(&surf_path);
362 xbt_lib_free(&storage_lib);
364 xbt_lib_free(&storage_type_lib);
365 xbt_lib_free(&file_lib);
366 xbt_dict_free(&watched_hosts_lib);
368 for (auto model : *all_existing_models)
370 delete all_existing_models;
372 simgrid::surf::surfExitCallbacks();
374 if (future_evt_set) {
375 delete future_evt_set;
376 future_evt_set = nullptr;
379 #if HAVE_THREAD_CONTEXTS
380 xbt_parmap_destroy(surf_parmap);
385 simgrid::s4u::Engine::shutdown();
387 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
398 : maxminSystem_(nullptr)
400 readyActionSet_ = new ActionList();
401 runningActionSet_ = new ActionList();
402 failedActionSet_ = new ActionList();
403 doneActionSet_ = new ActionList();
405 modifiedSet_ = nullptr;
406 actionHeap_ = nullptr;
407 updateMechanism_ = UM_UNDEFINED;
408 selectiveUpdate_ = 0;
412 delete readyActionSet_;
413 delete runningActionSet_;
414 delete failedActionSet_;
415 delete doneActionSet_;
418 double Model::nextOccuringEvent(double now)
420 //FIXME: set the good function once and for all
421 if (updateMechanism_ == UM_LAZY)
422 return nextOccuringEventLazy(now);
423 else if (updateMechanism_ == UM_FULL)
424 return nextOccuringEventFull(now);
426 xbt_die("Invalid cpu update mechanism!");
429 double Model::nextOccuringEventLazy(double now)
431 XBT_DEBUG("Before share resources, the size of modified actions set is %zd", modifiedSet_->size());
432 lmm_solve(maxminSystem_);
433 XBT_DEBUG("After share resources, The size of modified actions set is %zd", modifiedSet_->size());
435 while(!modifiedSet_->empty()) {
436 Action *action = &(modifiedSet_->front());
437 modifiedSet_->pop_front();
438 int max_dur_flag = 0;
440 if (action->getStateSet() != runningActionSet_)
443 /* bogus priority, skip it */
444 if (action->getPriority() <= 0 || action->getHat()==LATENCY)
447 action->updateRemainingLazy(now);
450 double share = lmm_variable_getvalue(action->getVariable());
453 double time_to_completion;
454 if (action->getRemains() > 0) {
455 time_to_completion = action->getRemainsNoUpdate() / share;
457 time_to_completion = 0.0;
459 min = now + time_to_completion; // when the task will complete if nothing changes
462 if ((action->getMaxDuration() != NO_MAX_DURATION) &&
463 (min == -1 || action->getStartTime() + action->getMaxDuration() < min)) {
464 // when the task will complete anyway because of the deadline if any
465 min = action->getStartTime() + action->getMaxDuration();
470 XBT_DEBUG("Action(%p) corresponds to variable %d", action, action->getVariable()->id_int);
472 XBT_DEBUG("Action(%p) Start %f. May finish at %f (got a share of %f). Max_duration %f", action,
473 action->getStartTime(), min, share,
474 action->getMaxDuration());
477 action->heapUpdate(actionHeap_, min, max_dur_flag ? MAX_DURATION : NORMAL);
478 XBT_DEBUG("Insert at heap action(%p) min %f now %f", action, min,
480 } else DIE_IMPOSSIBLE;
483 //hereafter must have already the min value for this resource model
484 if (xbt_heap_size(actionHeap_) > 0) {
485 double min = xbt_heap_maxkey(actionHeap_) - now;
486 XBT_DEBUG("minimum with the HEAP %f", min);
489 XBT_DEBUG("The HEAP is empty, thus returning -1");
494 double Model::nextOccuringEventFull(double /*now*/) {
495 maxminSystem_->solve_fun(maxminSystem_);
498 for (auto it(getRunningActionSet()->begin()), itend(getRunningActionSet()->end()); it != itend ; ++it) {
499 Action *action = &*it;
500 double value = lmm_variable_getvalue(action->getVariable());
502 if (action->getRemains() > 0)
503 value = action->getRemainsNoUpdate() / value;
506 if (min < 0 || value < min) {
508 XBT_DEBUG("Updating min (value) with %p: %f", action, min);
511 if ((action->getMaxDuration() >= 0) && (min<0 || action->getMaxDuration() < min)) {
512 min = action->getMaxDuration();
513 XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
516 XBT_DEBUG("min value : %f", min);
521 void Model::updateActionsState(double now, double delta)
523 if (updateMechanism_ == UM_FULL)
524 updateActionsStateFull(now, delta);
525 else if (updateMechanism_ == UM_LAZY)
526 updateActionsStateLazy(now, delta);
528 xbt_die("Invalid cpu update mechanism!");
531 void Model::updateActionsStateLazy(double /*now*/, double /*delta*/)
536 void Model::updateActionsStateFull(double /*now*/, double /*delta*/)
551 Resource::Resource(Model* model, const char* name, lmm_constraint_t constraint)
552 : name_(name), model_(model), constraint_(constraint)
555 Resource::~Resource() = default;
557 bool Resource::isOn() const {
560 bool Resource::isOff() const {
564 void Resource::turnOn()
569 void Resource::turnOff()
574 Model* Resource::model() const
579 const char* Resource::cname() const
581 return name_.c_str();
584 bool Resource::operator==(const Resource &other) const {
585 return name_ == other.name_;
588 lmm_constraint_t Resource::constraint() const
600 const char *surf_action_state_names[6] = {
602 "SURF_ACTION_RUNNING",
603 "SURF_ACTION_FAILED",
605 "SURF_ACTION_TO_FREE",
606 "SURF_ACTION_NOT_IN_THE_SYSTEM"
609 /* added to manage the communication action's heap */
610 void surf_action_lmm_update_index_heap(void *action, int i) {
611 static_cast<simgrid::surf::Action*>(action)->updateIndexHeap(i);
617 Action::Action(simgrid::surf::Model* model, double cost, bool failed) : Action(model, cost, failed, nullptr)
621 Action::Action(simgrid::surf::Model* model, double cost, bool failed, lmm_variable_t var)
622 : remains_(cost), start_(surf_get_clock()), cost_(cost), model_(model), variable_(var)
625 stateSet_ = getModel()->getFailedActionSet();
627 stateSet_ = getModel()->getRunningActionSet();
629 stateSet_->push_back(*this);
636 void Action::finish() {
637 finishTime_ = surf_get_clock();
640 Action::State Action::getState()
642 if (stateSet_ == model_->getReadyActionSet())
643 return Action::State::ready;
644 if (stateSet_ == model_->getRunningActionSet())
645 return Action::State::running;
646 if (stateSet_ == model_->getFailedActionSet())
647 return Action::State::failed;
648 if (stateSet_ == model_->getDoneActionSet())
649 return Action::State::done;
650 return Action::State::not_in_the_system;
653 void Action::setState(Action::State state)
655 stateSet_->erase(stateSet_->iterator_to(*this));
657 case Action::State::ready:
658 stateSet_ = model_->getReadyActionSet();
660 case Action::State::running:
661 stateSet_ = model_->getRunningActionSet();
663 case Action::State::failed:
664 stateSet_ = model_->getFailedActionSet();
666 case Action::State::done:
667 stateSet_ = model_->getDoneActionSet();
674 stateSet_->push_back(*this);
677 double Action::getBound()
679 return (variable_) ? lmm_variable_getbound(variable_) : 0;
682 void Action::setBound(double bound)
684 XBT_IN("(%p,%g)", this, bound);
686 lmm_update_variable_bound(getModel()->getMaxminSystem(), variable_, bound);
688 if (getModel()->getUpdateMechanism() == UM_LAZY && getLastUpdate()!=surf_get_clock())
689 heapRemove(getModel()->getActionHeap());
693 double Action::getStartTime()
698 double Action::getFinishTime()
700 /* keep the function behavior, some models (cpu_ti) change the finish time before the action end */
701 return remains_ == 0 ? finishTime_ : -1;
704 void Action::setData(void* data)
709 void Action::setCategory(const char *category)
711 category_ = xbt_strdup(category);
718 void Action::setMaxDuration(double duration)
720 maxDuration_ = duration;
721 if (getModel()->getUpdateMechanism() == UM_LAZY) // remove action from the heap
722 heapRemove(getModel()->getActionHeap());
725 void Action::gapRemove() {}
727 void Action::setPriority(double priority)
729 XBT_IN("(%p,%g)", this, priority);
730 priority_ = priority;
731 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority);
733 if (getModel()->getUpdateMechanism() == UM_LAZY)
734 heapRemove(getModel()->getActionHeap());
738 void Action::cancel(){
739 setState(Action::State::failed);
740 if (getModel()->getUpdateMechanism() == UM_LAZY) {
741 if (action_lmm_hook.is_linked())
742 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
743 heapRemove(getModel()->getActionHeap());
750 if (action_hook.is_linked())
751 stateSet_->erase(stateSet_->iterator_to(*this));
753 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
754 if (getModel()->getUpdateMechanism() == UM_LAZY) {
755 /* remove from heap */
756 heapRemove(getModel()->getActionHeap());
757 if (action_lmm_hook.is_linked())
758 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
766 void Action::suspend()
768 XBT_IN("(%p)", this);
769 if (suspended_ != 2) {
770 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
771 if (getModel()->getUpdateMechanism() == UM_LAZY){
772 heapRemove(getModel()->getActionHeap());
773 if (getModel()->getUpdateMechanism() == UM_LAZY && stateSet_ == getModel()->getRunningActionSet() && priority_ > 0){
774 //If we have a lazy model, we need to update the remaining value accordingly
775 updateRemainingLazy(surf_get_clock());
783 void Action::resume()
785 XBT_IN("(%p)", this);
786 if (suspended_ != 2) {
787 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority_);
789 if (getModel()->getUpdateMechanism() == UM_LAZY)
790 heapRemove(getModel()->getActionHeap());
795 bool Action::isSuspended()
797 return suspended_ == 1;
799 /* insert action on heap using a given key and a hat (heap_action_type)
800 * a hat can be of three types for communications:
802 * NORMAL = this is a normal heap entry stating the date to finish transmitting
803 * LATENCY = this is a heap entry to warn us when the latency is payed
804 * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached
806 void Action::heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat)
809 xbt_heap_push(heap, this, key);
812 void Action::heapRemove(xbt_heap_t heap)
815 if (indexHeap_ >= 0) {
816 xbt_heap_remove(heap, indexHeap_);
820 void Action::heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat)
823 if (indexHeap_ >= 0) {
824 xbt_heap_update(heap, indexHeap_, key);
826 xbt_heap_push(heap, this, key);
830 void Action::updateIndexHeap(int i) {
834 double Action::getRemains()
836 XBT_IN("(%p)", this);
837 /* update remains before return it */
838 if (getModel()->getUpdateMechanism() == UM_LAZY) /* update remains before return it */
839 updateRemainingLazy(surf_get_clock());
844 double Action::getRemainsNoUpdate()
849 //FIXME split code in the right places
850 void Action::updateRemainingLazy(double now)
854 if(getModel() == surf_network_model)
861 xbt_assert(stateSet_ == getModel()->getRunningActionSet(), "You're updating an action that is not running.");
862 xbt_assert(priority_ > 0, "You're updating an action that seems suspended.");
865 delta = now - lastUpdate_;
868 XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, remains_, lastUpdate_);
869 double_update(&remains_, lastValue_ * delta, sg_surf_precision*sg_maxmin_precision);
871 if (getModel() == surf_cpu_model_pm && TRACE_is_enabled()) {
872 simgrid::surf::Resource *cpu = static_cast<simgrid::surf::Resource*>(
873 lmm_constraint_id(lmm_get_cnst_from_var(getModel()->getMaxminSystem(), getVariable(), 0)));
874 TRACE_surf_host_set_utilization(cpu->cname(), getCategory(), lastValue_, lastUpdate_, now - lastUpdate_);
876 XBT_DEBUG("Updating action(%p): remains is now %f", this, remains_);
879 if(getModel() == surf_network_model)
881 if (maxDuration_ != NO_MAX_DURATION)
882 double_update(&maxDuration_, delta, sg_surf_precision);
884 //FIXME: duplicated code
885 if ((remains_ <= 0) &&
886 (lmm_get_variable_weight(getVariable()) > 0)) {
888 setState(Action::State::done);
889 heapRemove(getModel()->getActionHeap());
890 } else if (((maxDuration_ != NO_MAX_DURATION)
891 && (maxDuration_ <= 0))) {
893 setState(Action::State::done);
894 heapRemove(getModel()->getActionHeap());
899 lastValue_ = lmm_variable_getvalue(getVariable());