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"
22 XBT_LOG_NEW_CATEGORY(surf, "All SURF categories");
23 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf, "Logging specific to SURF (kernel)");
29 /* model_list_invoke contains only surf_host and surf_vm.
30 * The callback functions of cpu_model and network_model will be called from those of these host models. */
31 std::vector<surf_model_t> * all_existing_models = nullptr; /* to destroy models correctly */
32 xbt_dynar_t model_list_invoke = nullptr; /* to invoke callbacks */
34 simgrid::trace_mgr::future_evt_set *future_evt_set = nullptr;
35 xbt_dynar_t surf_path = nullptr;
36 std::vector<simgrid::s4u::Host*> host_that_restart;
37 xbt_dict_t watched_hosts_lib;
42 simgrid::xbt::signal<void(void)> surfExitCallbacks;
47 #include <simgrid/plugins/energy.h> // FIXME: this plugin should not be linked to the core
49 s_surf_model_description_t surf_plugin_description[] = {
50 {"Energy", "Cpu energy consumption.", sg_energy_plugin_init},
51 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
54 /* Don't forget to update the option description in smx_config when you change this */
55 s_surf_model_description_t surf_network_model_description[] = {
56 {"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). ",
57 surf_network_model_init_LegrandVelho},
59 "Simplistic network model where all communication take a constant time (one second). This model provides the lowest realism, but is (marginally) faster.",
60 surf_network_model_init_Constant},
61 {"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)",
62 surf_network_model_init_SMPI},
63 {"IB", "Realistic network model specifically tailored for HPC settings, with Infiniband contention model",
64 surf_network_model_init_IB},
65 {"CM02", "Legacy network analytic model (Very similar to LV08, but without corrective factors. The timings of small messages are thus poorly modeled).",
66 surf_network_model_init_CM02},
68 {"NS3", "Network pseudo-model using the NS3 tcp model instead of an analytic model", surf_network_model_init_NS3},
70 {"Reno", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
71 surf_network_model_init_Reno},
72 {"Reno2", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
73 surf_network_model_init_Reno2},
74 {"Vegas", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
75 surf_network_model_init_Vegas},
76 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
80 void surf_network_model_init_SMPI() {
81 xbt_die("Please activate SMPI support in cmake to use the SMPI network model.");
83 void surf_network_model_init_IB() {
84 xbt_die("Please activate SMPI support in cmake to use the IB network model.");
88 s_surf_model_description_t surf_cpu_model_description[] = {
89 {"Cas01", "Simplistic CPU model (time=size/power).", surf_cpu_model_init_Cas01},
90 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
93 s_surf_model_description_t surf_host_model_description[] = {
94 {"default", "Default host model. Currently, CPU:Cas01 and network:LV08 (with cross traffic enabled)", surf_host_model_init_current_default},
95 {"compound", "Host model that is automatically chosen if you change the network and CPU models", surf_host_model_init_compound},
96 {"ptask_L07", "Host model somehow similar to Cas01+CM02 but allowing parallel tasks", surf_host_model_init_ptask_L07},
97 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
100 s_surf_model_description_t surf_vm_model_description[] = {
101 {"default", "Default vm model.", surf_vm_model_init_HL13},
102 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
105 s_surf_model_description_t surf_optimization_mode_description[] = {
106 {"Lazy", "Lazy action management (partial invalidation in lmm + heap in action remaining).", nullptr},
107 {"TI", "Trace integration. Highly optimized mode when using availability traces (only available for the Cas01 CPU model for now).", nullptr},
108 {"Full", "Full update of remaining and variables. Slow but may be useful when debugging.", nullptr},
109 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
112 s_surf_model_description_t surf_storage_model_description[] = {
113 {"default", "Simplistic storage model.", surf_storage_model_init_default},
114 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
117 #if HAVE_THREAD_CONTEXTS
118 static xbt_parmap_t surf_parmap = nullptr; /* parallel map on models */
123 double surf_get_clock()
129 # define FILE_DELIM "\\"
131 # define FILE_DELIM "/" /* FIXME: move to better location */
134 FILE *surf_fopen(const char *name, const char *mode)
137 char *path_elm = nullptr;
139 FILE *file = nullptr;
143 if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
144 return fopen(name, mode);
146 /* search relative files in the path */
147 xbt_dynar_foreach(surf_path, cpt, path_elm) {
148 buff = bprintf("%s" FILE_DELIM "%s", path_elm, name);
149 file = fopen(buff, mode);
161 static const char *disk_drives_letter_table[MAX_DRIVE] = {
162 "A:\\","B:\\","C:\\","D:\\","E:\\","F:\\","G:\\","H:\\","I:\\","J:\\","K:\\","L:\\","M:\\",
163 "N:\\","O:\\","P:\\","Q:\\","R:\\","S:\\","T:\\","U:\\","V:\\","W:\\","X:\\","Y:\\","Z:\\"
168 * Returns the initial path. On Windows the initial path is
169 * the current directory for the current process in the other
170 * case the function returns "./" that represents the current
171 * directory on Unix/Linux platforms.
174 const char *__surf_get_initial_path()
179 char current_directory[MAX_PATH + 1] = { 0 };
180 unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
181 char root[4] = { 0 };
186 strncpy(root, current_directory, 3);
188 for (i = 0; i < MAX_DRIVE; i++) {
189 if (toupper(root[0]) == disk_drives_letter_table[i][0])
190 return disk_drives_letter_table[i];
199 /* The __surf_is_absolute_file_path() returns 1 if
200 * file_path is a absolute file path, in the other
201 * case the function returns 0.
203 int __surf_is_absolute_file_path(const char *file_path)
206 WIN32_FIND_DATA wfd = { 0 };
207 HANDLE hFile = FindFirstFile(file_path, &wfd);
209 if (INVALID_HANDLE_VALUE == hFile)
215 return (file_path[0] == '/');
219 /** Displays the long description of all registered models, and quit */
220 void model_help(const char *category, s_surf_model_description_t * table)
222 printf("Long description of the %s models accepted by this simulator:\n", category);
223 for (int i = 0; table[i].name; i++)
224 printf(" %s: %s\n", table[i].name, table[i].description);
227 int find_model_description(s_surf_model_description_t * table,
231 char *name_list = nullptr;
233 for (i = 0; table[i].name; i++)
234 if (!strcmp(name, table[i].name)) {
238 xbt_die("No model is valid! This is a bug.");
239 name_list = xbt_strdup(table[0].name);
240 for (i = 1; table[i].name; i++) {
241 name_list = (char *) xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 3);
242 strncat(name_list, ", ", 2);
243 strncat(name_list, table[i].name, strlen(table[i].name));
245 xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
249 static inline void surf_storage_free(void *r)
251 delete static_cast<simgrid::surf::Storage*>(r);
254 void sg_version_check(int lib_version_major,int lib_version_minor,int lib_version_patch) {
255 if ((lib_version_major != SIMGRID_VERSION_MAJOR) || (lib_version_minor != SIMGRID_VERSION_MINOR)) {
257 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
258 "and then linked against SimGrid %d.%d.%d. Please fix this.\n",
259 lib_version_major,lib_version_minor,lib_version_patch,
260 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
263 if (lib_version_patch != SIMGRID_VERSION_PATCH) {
264 if(SIMGRID_VERSION_PATCH >= 90 || lib_version_patch >=90){
266 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
267 "and then linked against SimGrid %d.%d.%d. \n"
268 "One of them is a development version, and should not be mixed with the stable release. Please fix this.\n",
269 lib_version_major,lib_version_minor,lib_version_patch,
270 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
274 "Warning: Your program was compiled with SimGrid version %d.%d.%d, "
275 "and then linked against SimGrid %d.%d.%d. Proceeding anyway.\n",
276 lib_version_major,lib_version_minor,lib_version_patch,
277 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
281 void sg_version(int *ver_major,int *ver_minor,int *ver_patch) {
282 *ver_major = SIMGRID_VERSION_MAJOR;
283 *ver_minor = SIMGRID_VERSION_MINOR;
284 *ver_patch = SIMGRID_VERSION_PATCH;
287 void surf_init(int *argc, char **argv)
289 if (host_list != nullptr) // Already initialized
292 XBT_DEBUG("Create all Libs");
293 host_list = xbt_dict_new_homogeneous([](void*p) {
294 simgrid::s4u::Host* host = static_cast<simgrid::s4u::Host*>(p);
295 simgrid::s4u::Host::onDestruction(*host);
298 USER_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
300 as_router_lib = xbt_lib_new();
301 storage_lib = xbt_lib_new();
302 storage_type_lib = xbt_lib_new();
303 file_lib = xbt_lib_new();
304 watched_hosts_lib = xbt_dict_new_homogeneous(nullptr);
306 XBT_DEBUG("Add routing levels");
307 ROUTING_PROP_ASR_LEVEL = xbt_lib_add_level(as_router_lib, nullptr);
308 ROUTING_ASR_LEVEL = xbt_lib_add_level(as_router_lib, [](void* p) {
309 delete static_cast<simgrid::kernel::routing::NetCard*>(p);
312 XBT_DEBUG("Add SURF levels");
313 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_free);
315 xbt_init(argc, argv);
316 if (!all_existing_models)
317 all_existing_models = new std::vector<simgrid::surf::Model*>();
318 if (!model_list_invoke)
319 model_list_invoke = xbt_dynar_new(sizeof(simgrid::surf::Model*), nullptr);
321 future_evt_set = new simgrid::trace_mgr::future_evt_set();
323 TRACE_add_start_function(TRACE_surf_alloc);
324 TRACE_add_end_function(TRACE_surf_release);
326 sg_config_init(argc, argv);
334 TRACE_end(); /* Just in case it was not called by the upper layer (or there is no upper layer) */
336 xbt_dynar_free(&surf_path);
338 xbt_dict_free(&host_list);
339 xbt_lib_free(&as_router_lib);
340 xbt_lib_free(&storage_lib);
342 xbt_lib_free(&storage_type_lib);
343 xbt_lib_free(&file_lib);
344 xbt_dict_free(&watched_hosts_lib);
346 for (auto model : *all_existing_models)
348 delete all_existing_models;
349 xbt_dynar_free(&model_list_invoke);
352 simgrid::surf::surfExitCallbacks();
354 if (future_evt_set) {
355 delete future_evt_set;
356 future_evt_set = nullptr;
359 #if HAVE_THREAD_CONTEXTS
360 xbt_parmap_destroy(surf_parmap);
365 simgrid::s4u::Engine::shutdown();
367 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
378 : maxminSystem_(nullptr)
380 readyActionSet_ = new ActionList();
381 runningActionSet_ = new ActionList();
382 failedActionSet_ = new ActionList();
383 doneActionSet_ = new ActionList();
385 modifiedSet_ = nullptr;
386 actionHeap_ = nullptr;
387 updateMechanism_ = UM_UNDEFINED;
388 selectiveUpdate_ = 0;
392 delete readyActionSet_;
393 delete runningActionSet_;
394 delete failedActionSet_;
395 delete doneActionSet_;
398 double Model::next_occuring_event(double now)
400 //FIXME: set the good function once and for all
401 if (updateMechanism_ == UM_LAZY)
402 return next_occuring_event_lazy(now);
403 else if (updateMechanism_ == UM_FULL)
404 return next_occuring_event_full(now);
406 xbt_die("Invalid cpu update mechanism!");
409 double Model::next_occuring_event_lazy(double now)
411 Action *action = nullptr;
416 ("Before share resources, the size of modified actions set is %zd",
417 modifiedSet_->size());
419 lmm_solve(maxminSystem_);
422 ("After share resources, The size of modified actions set is %zd",
423 modifiedSet_->size());
425 while(!modifiedSet_->empty()) {
426 action = &(modifiedSet_->front());
427 modifiedSet_->pop_front();
428 int max_dur_flag = 0;
430 if (action->getStateSet() != runningActionSet_)
433 /* bogus priority, skip it */
434 if (action->getPriority() <= 0 || action->getHat()==LATENCY)
437 action->updateRemainingLazy(now);
440 share = lmm_variable_getvalue(action->getVariable());
443 double time_to_completion;
444 if (action->getRemains() > 0) {
445 time_to_completion = action->getRemainsNoUpdate() / share;
447 time_to_completion = 0.0;
449 min = now + time_to_completion; // when the task will complete if nothing changes
452 if ((action->getMaxDuration() != NO_MAX_DURATION)
454 || action->getStartTime() +
455 action->getMaxDuration() < min)) {
456 min = action->getStartTime() +
457 action->getMaxDuration(); // when the task will complete anyway because of the deadline if any
462 XBT_DEBUG("Action(%p) corresponds to variable %d", action, action->getVariable()->id_int);
464 XBT_DEBUG("Action(%p) Start %f. May finish at %f (got a share of %f). Max_duration %f", action,
465 action->getStartTime(), min, share,
466 action->getMaxDuration());
469 action->heapUpdate(actionHeap_, min, max_dur_flag ? MAX_DURATION : NORMAL);
470 XBT_DEBUG("Insert at heap action(%p) min %f now %f", action, min,
472 } else DIE_IMPOSSIBLE;
475 //hereafter must have already the min value for this resource model
476 if (xbt_heap_size(actionHeap_) > 0)
477 min = xbt_heap_maxkey(actionHeap_) - now;
481 XBT_DEBUG("The minimum with the HEAP %f", min);
486 double Model::next_occuring_event_full(double /*now*/) {
491 double Model::shareResourcesMaxMin(ActionList *running_actions,
493 void (*solve) (lmm_system_t))
495 Action *action = nullptr;
501 ActionList::iterator it(running_actions->begin()), itend(running_actions->end());
502 for(; it != itend ; ++it) {
504 value = lmm_variable_getvalue(action->getVariable());
505 if ((value > 0) || (action->getMaxDuration() >= 0))
513 if (action->getRemains() > 0)
514 min = action->getRemainsNoUpdate() / value;
517 if ((action->getMaxDuration() >= 0) && (action->getMaxDuration() < min))
518 min = action->getMaxDuration();
520 min = action->getMaxDuration();
523 for (++it; it != itend; ++it) {
525 value = lmm_variable_getvalue(action->getVariable());
527 if (action->getRemains() > 0)
528 value = action->getRemainsNoUpdate() / value;
533 XBT_DEBUG("Updating min (value) with %p: %f", action, min);
536 if ((action->getMaxDuration() >= 0) && (action->getMaxDuration() < min)) {
537 min = action->getMaxDuration();
538 XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
541 XBT_DEBUG("min value : %f", min);
546 void Model::updateActionsState(double now, double delta)
548 if (updateMechanism_ == UM_FULL)
549 updateActionsStateFull(now, delta);
550 else if (updateMechanism_ == UM_LAZY)
551 updateActionsStateLazy(now, delta);
553 xbt_die("Invalid cpu update mechanism!");
556 void Model::updateActionsStateLazy(double /*now*/, double /*delta*/)
561 void Model::updateActionsStateFull(double /*now*/, double /*delta*/)
576 Resource::Resource(Model *model, const char *name)
577 : name_(xbt_strdup(name))
581 Resource::Resource(Model *model, const char *name, lmm_constraint_t constraint)
582 : name_(xbt_strdup(name))
584 , constraint_(constraint)
587 Resource::~Resource() {
588 xbt_free((void*)name_);
591 bool Resource::isOn() const {
594 bool Resource::isOff() const {
598 void Resource::turnOn()
603 void Resource::turnOff()
608 Model *Resource::getModel() const {
612 const char *Resource::getName() const {
616 bool Resource::operator==(const Resource &other) const {
617 return strcmp(name_, other.name_);
620 lmm_constraint_t Resource::getConstraint() const {
631 const char *surf_action_state_names[6] = {
633 "SURF_ACTION_RUNNING",
634 "SURF_ACTION_FAILED",
636 "SURF_ACTION_TO_FREE",
637 "SURF_ACTION_NOT_IN_THE_SYSTEM"
640 /* added to manage the communication action's heap */
641 void surf_action_lmm_update_index_heap(void *action, int i) {
642 static_cast<simgrid::surf::Action*>(action)->updateIndexHeap(i);
648 void Action::initialize(simgrid::surf::Model *model, double cost, bool failed,
652 start_ = surf_get_clock();
657 stateSet_ = getModel()->getFailedActionSet();
659 stateSet_ = getModel()->getRunningActionSet();
661 stateSet_->push_back(*this);
664 Action::Action(simgrid::surf::Model *model, double cost, bool failed)
666 initialize(model, cost, failed);
669 Action::Action(simgrid::surf::Model *model, double cost, bool failed, lmm_variable_t var)
671 initialize(model, cost, failed, var);
678 void Action::finish() {
679 finishTime_ = surf_get_clock();
682 Action::State Action::getState()
684 if (stateSet_ == getModel()->getReadyActionSet())
685 return Action::State::ready;
686 if (stateSet_ == getModel()->getRunningActionSet())
687 return Action::State::running;
688 if (stateSet_ == getModel()->getFailedActionSet())
689 return Action::State::failed;
690 if (stateSet_ == getModel()->getDoneActionSet())
691 return Action::State::done;
692 return Action::State::not_in_the_system;
695 void Action::setState(Action::State state)
697 stateSet_->erase(stateSet_->iterator_to(*this));
699 case Action::State::ready:
700 stateSet_ = getModel()->getReadyActionSet();
702 case Action::State::running:
703 stateSet_ = getModel()->getRunningActionSet();
705 case Action::State::failed:
706 stateSet_ = getModel()->getFailedActionSet();
708 case Action::State::done:
709 stateSet_ = getModel()->getDoneActionSet();
716 stateSet_->push_back(*this);
719 double Action::getBound()
721 return (variable_) ? lmm_variable_getbound(variable_) : 0;
724 void Action::setBound(double bound)
726 XBT_IN("(%p,%g)", this, bound);
728 lmm_update_variable_bound(getModel()->getMaxminSystem(), variable_, bound);
730 if (getModel()->getUpdateMechanism() == UM_LAZY && getLastUpdate()!=surf_get_clock())
731 heapRemove(getModel()->getActionHeap());
735 double Action::getStartTime()
740 double Action::getFinishTime()
742 /* keep the function behavior, some models (cpu_ti) change the finish time before the action end */
743 return remains_ == 0 ? finishTime_ : -1;
746 void Action::setData(void* data)
751 void Action::setCategory(const char *category)
753 XBT_IN("(%p,%s)", this, category);
754 category_ = xbt_strdup(category);
762 void Action::setMaxDuration(double duration)
764 XBT_IN("(%p,%g)", this, duration);
765 maxDuration_ = duration;
766 if (getModel()->getUpdateMechanism() == UM_LAZY) // remove action from the heap
767 heapRemove(getModel()->getActionHeap());
771 void Action::gapRemove() {}
773 void Action::setPriority(double priority)
775 XBT_IN("(%p,%g)", this, priority);
776 priority_ = priority;
777 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority);
779 if (getModel()->getUpdateMechanism() == UM_LAZY)
780 heapRemove(getModel()->getActionHeap());
784 void Action::cancel(){
785 setState(Action::State::failed);
786 if (getModel()->getUpdateMechanism() == UM_LAZY) {
787 if (action_lmm_hook.is_linked())
788 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
789 heapRemove(getModel()->getActionHeap());
796 if (action_hook.is_linked())
797 stateSet_->erase(stateSet_->iterator_to(*this));
799 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
800 if (getModel()->getUpdateMechanism() == UM_LAZY) {
801 /* remove from heap */
802 heapRemove(getModel()->getActionHeap());
803 if (action_lmm_hook.is_linked())
804 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
812 void Action::suspend()
814 XBT_IN("(%p)", this);
815 if (suspended_ != 2) {
816 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
818 if (getModel()->getUpdateMechanism() == UM_LAZY)
819 heapRemove(getModel()->getActionHeap());
824 void Action::resume()
826 XBT_IN("(%p)", this);
827 if (suspended_ != 2) {
828 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority_);
830 if (getModel()->getUpdateMechanism() == UM_LAZY)
831 heapRemove(getModel()->getActionHeap());
836 bool Action::isSuspended()
838 return suspended_ == 1;
840 /* insert action on heap using a given key and a hat (heap_action_type)
841 * a hat can be of three types for communications:
843 * NORMAL = this is a normal heap entry stating the date to finish transmitting
844 * LATENCY = this is a heap entry to warn us when the latency is payed
845 * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached
847 void Action::heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat)
850 xbt_heap_push(heap, this, key);
853 void Action::heapRemove(xbt_heap_t heap)
856 if (indexHeap_ >= 0) {
857 xbt_heap_remove(heap, indexHeap_);
861 void Action::heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat)
864 if (indexHeap_ >= 0) {
865 xbt_heap_update(heap, indexHeap_, key);
867 xbt_heap_push(heap, this, key);
871 void Action::updateIndexHeap(int i) {
875 double Action::getRemains()
877 XBT_IN("(%p)", this);
878 /* update remains before return it */
879 if (getModel()->getUpdateMechanism() == UM_LAZY) /* update remains before return it */
880 updateRemainingLazy(surf_get_clock());
885 double Action::getRemainsNoUpdate()
890 //FIXME split code in the right places
891 void Action::updateRemainingLazy(double now)
895 if(getModel() == surf_network_model)
902 xbt_assert(stateSet_ == getModel()->getRunningActionSet(), "You're updating an action that is not running.");
903 xbt_assert(priority_ > 0, "You're updating an action that seems suspended.");
906 delta = now - lastUpdate_;
909 XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, remains_, lastUpdate_);
910 double_update(&remains_, lastValue_ * delta, sg_surf_precision*sg_maxmin_precision);
912 if (getModel() == surf_cpu_model_pm && TRACE_is_enabled()) {
913 simgrid::surf::Resource *cpu = static_cast<simgrid::surf::Resource*>(
914 lmm_constraint_id(lmm_get_cnst_from_var(getModel()->getMaxminSystem(), getVariable(), 0)));
915 TRACE_surf_host_set_utilization(cpu->getName(), getCategory(), lastValue_, lastUpdate_, now - lastUpdate_);
917 XBT_DEBUG("Updating action(%p): remains is now %f", this, remains_);
920 if(getModel() == surf_network_model)
922 if (maxDuration_ != NO_MAX_DURATION)
923 double_update(&maxDuration_, delta, sg_surf_precision);
925 //FIXME: duplicated code
926 if ((remains_ <= 0) &&
927 (lmm_get_variable_weight(getVariable()) > 0)) {
929 setState(Action::State::done);
930 heapRemove(getModel()->getActionHeap());
931 } else if (((maxDuration_ != NO_MAX_DURATION)
932 && (maxDuration_ <= 0))) {
934 setState(Action::State::done);
935 heapRemove(getModel()->getActionHeap());
940 lastValue_ = lmm_variable_getvalue(getVariable());