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"
22 XBT_LOG_NEW_CATEGORY(surf, "All SURF categories");
23 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf, "Logging specific to SURF (kernel)");
29 std::vector<surf_model_t> * all_existing_models = nullptr; /* to destroy models correctly */
31 simgrid::trace_mgr::future_evt_set *future_evt_set = nullptr;
32 std::vector<std::string> surf_path;
33 std::vector<simgrid::s4u::Host*> host_that_restart;
34 xbt_dict_t watched_hosts_lib;
39 simgrid::xbt::signal<void(void)> surfExitCallbacks;
44 #include <simgrid/plugins/energy.h> // FIXME: this plugin should not be linked to the core
45 #include <simgrid/plugins/load.h> // FIXME: this plugin should not be linked to the core
47 s_surf_model_description_t surf_plugin_description[] = {
48 {"Energy", "Cpu energy consumption.", &sg_host_energy_plugin_init},
49 {"Load", "Cpu load.", &sg_host_load_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 std::ifstream* surf_ifsopen(const char* name)
133 std::ifstream* fs = new std::ifstream();
135 if (__surf_is_absolute_file_path(name)) { /* don't mess with absolute file names */
136 fs->open(name, std::ifstream::in);
139 /* search relative files in the path */
140 for (auto path_elm : surf_path) {
141 std::string buff = path_elm + FILE_DELIM + name;
142 fs->open(buff.c_str(), std::ifstream::in);
145 XBT_DEBUG("Found file at %s", buff.c_str());
152 FILE *surf_fopen(const char *name, const char *mode)
155 FILE *file = nullptr;
159 if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
160 return fopen(name, mode);
162 /* search relative files in the path */
163 for (auto path_elm : surf_path) {
164 buff = bprintf("%s" FILE_DELIM "%s", path_elm.c_str(), name);
165 file = fopen(buff, mode);
177 static const char *disk_drives_letter_table[MAX_DRIVE] = {
178 "A:\\","B:\\","C:\\","D:\\","E:\\","F:\\","G:\\","H:\\","I:\\","J:\\","K:\\","L:\\","M:\\",
179 "N:\\","O:\\","P:\\","Q:\\","R:\\","S:\\","T:\\","U:\\","V:\\","W:\\","X:\\","Y:\\","Z:\\"
184 * Returns the initial path. On Windows the initial path is
185 * the current directory for the current process in the other
186 * case the function returns "./" that represents the current
187 * directory on Unix/Linux platforms.
190 const char *__surf_get_initial_path()
195 char current_directory[MAX_PATH + 1] = { 0 };
196 unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
197 char root[4] = { 0 };
202 strncpy(root, current_directory, 3);
204 for (i = 0; i < MAX_DRIVE; i++) {
205 if (toupper(root[0]) == disk_drives_letter_table[i][0])
206 return disk_drives_letter_table[i];
215 /* The __surf_is_absolute_file_path() returns 1 if
216 * file_path is a absolute file path, in the other
217 * case the function returns 0.
219 int __surf_is_absolute_file_path(const char *file_path)
222 WIN32_FIND_DATA wfd = { 0 };
223 HANDLE hFile = FindFirstFile(file_path, &wfd);
225 if (INVALID_HANDLE_VALUE == hFile)
231 return (file_path[0] == '/');
235 /** Displays the long description of all registered models, and quit */
236 void model_help(const char *category, s_surf_model_description_t * table)
238 printf("Long description of the %s models accepted by this simulator:\n", category);
239 for (int i = 0; table[i].name; i++)
240 printf(" %s: %s\n", table[i].name, table[i].description);
243 int find_model_description(s_surf_model_description_t * table,
247 char *name_list = nullptr;
249 for (i = 0; table[i].name; i++)
250 if (!strcmp(name, table[i].name)) {
254 xbt_die("No model is valid! This is a bug.");
255 name_list = xbt_strdup(table[0].name);
256 for (i = 1; table[i].name; i++) {
257 name_list = (char *) xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 3);
258 strncat(name_list, ", ", 2);
259 strncat(name_list, table[i].name, strlen(table[i].name));
261 xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
265 static inline void surf_storage_free(void *r)
267 delete static_cast<simgrid::surf::Storage*>(r);
270 void sg_version_check(int lib_version_major,int lib_version_minor,int lib_version_patch) {
271 if ((lib_version_major != SIMGRID_VERSION_MAJOR) || (lib_version_minor != SIMGRID_VERSION_MINOR)) {
273 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
274 "and then linked against SimGrid %d.%d.%d. Please fix this.\n",
275 lib_version_major,lib_version_minor,lib_version_patch,
276 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
279 if (lib_version_patch != SIMGRID_VERSION_PATCH) {
280 if(SIMGRID_VERSION_PATCH >= 90 || lib_version_patch >=90){
282 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
283 "and then linked against SimGrid %d.%d.%d. \n"
284 "One of them is a development version, and should not be mixed with the stable release. Please fix this.\n",
285 lib_version_major,lib_version_minor,lib_version_patch,
286 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
290 "Warning: Your program was compiled with SimGrid version %d.%d.%d, "
291 "and then linked against SimGrid %d.%d.%d. Proceeding anyway.\n",
292 lib_version_major,lib_version_minor,lib_version_patch,
293 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
297 void sg_version_get(int* ver_major, int* ver_minor, int* ver_patch)
299 *ver_major = SIMGRID_VERSION_MAJOR;
300 *ver_minor = SIMGRID_VERSION_MINOR;
301 *ver_patch = SIMGRID_VERSION_PATCH;
306 std::printf("This program was linked against %s (git: %s), found in %s.\n",
307 SIMGRID_VERSION_STRING, SIMGRID_GIT_VERSION, SIMGRID_INSTALL_PREFIX);
310 std::printf(" Model-checking support compiled in.\n");
312 std::printf(" Model-checking support disabled at compilation.\n");
316 std::printf(" NS3 support compiled in.\n");
318 std::printf(" NS3 support disabled at compilation.\n");
322 std::printf(" Jedule support compiled in.\n");
324 std::printf(" Jedule support disabled at compilation.\n");
328 std::printf(" Lua support compiled in.\n");
330 std::printf(" Lua support disabled at compilation.\n");
334 std::printf(" Mallocator support compiled in.\n");
336 std::printf(" Mallocator support disabled at compilation.\n");
339 std::printf("\nTo cite SimGrid in a publication, please use:\n"
340 " Henri Casanova, Arnaud Giersch, Arnaud Legrand, Martin Quinson, Frédéric Suter. \n"
341 " Versatile, Scalable, and Accurate Simulation of Distributed Applications and Platforms. \n"
342 " Journal of Parallel and Distributed Computing, Elsevier, 2014, 74 (10), pp.2899-2917.\n");
343 std::printf("The pdf file and a BibTeX entry for LaTeX users can be found at http://hal.inria.fr/hal-01017319\n");
346 void surf_init(int *argc, char **argv)
348 if (USER_HOST_LEVEL != -1) // Already initialized
351 XBT_DEBUG("Create all Libs");
352 USER_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
354 storage_lib = xbt_lib_new();
355 storage_type_lib = xbt_lib_new();
356 file_lib = xbt_lib_new();
357 watched_hosts_lib = xbt_dict_new_homogeneous(nullptr);
359 XBT_DEBUG("Add SURF levels");
360 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_free);
362 xbt_init(argc, argv);
363 if (!all_existing_models)
364 all_existing_models = new std::vector<simgrid::surf::Model*>();
366 future_evt_set = new simgrid::trace_mgr::future_evt_set();
368 TRACE_add_start_function(TRACE_surf_alloc);
369 TRACE_add_end_function(TRACE_surf_release);
371 sg_config_init(argc, argv);
379 TRACE_end(); /* Just in case it was not called by the upper layer (or there is no upper layer) */
382 xbt_lib_free(&storage_lib);
384 xbt_lib_free(&storage_type_lib);
385 xbt_lib_free(&file_lib);
386 xbt_dict_free(&watched_hosts_lib);
388 for (auto model : *all_existing_models)
390 delete all_existing_models;
392 simgrid::surf::surfExitCallbacks();
394 if (future_evt_set) {
395 delete future_evt_set;
396 future_evt_set = nullptr;
399 #if HAVE_THREAD_CONTEXTS
400 xbt_parmap_destroy(surf_parmap);
405 simgrid::s4u::Engine::shutdown();
407 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
418 : maxminSystem_(nullptr)
420 readyActionSet_ = new ActionList();
421 runningActionSet_ = new ActionList();
422 failedActionSet_ = new ActionList();
423 doneActionSet_ = new ActionList();
425 modifiedSet_ = nullptr;
426 actionHeap_ = nullptr;
427 updateMechanism_ = UM_UNDEFINED;
428 selectiveUpdate_ = 0;
432 delete readyActionSet_;
433 delete runningActionSet_;
434 delete failedActionSet_;
435 delete doneActionSet_;
438 double Model::nextOccuringEvent(double now)
440 //FIXME: set the good function once and for all
441 if (updateMechanism_ == UM_LAZY)
442 return nextOccuringEventLazy(now);
443 else if (updateMechanism_ == UM_FULL)
444 return nextOccuringEventFull(now);
446 xbt_die("Invalid cpu update mechanism!");
449 double Model::nextOccuringEventLazy(double now)
451 XBT_DEBUG("Before share resources, the size of modified actions set is %zd", modifiedSet_->size());
452 lmm_solve(maxminSystem_);
453 XBT_DEBUG("After share resources, The size of modified actions set is %zd", modifiedSet_->size());
455 while(!modifiedSet_->empty()) {
456 Action *action = &(modifiedSet_->front());
457 modifiedSet_->pop_front();
458 bool max_dur_flag = false;
460 if (action->getStateSet() != runningActionSet_)
463 /* bogus priority, skip it */
464 if (action->getPriority() <= 0 || action->getHat()==LATENCY)
467 action->updateRemainingLazy(now);
470 double share = lmm_variable_getvalue(action->getVariable());
473 double time_to_completion;
474 if (action->getRemains() > 0) {
475 time_to_completion = action->getRemainsNoUpdate() / share;
477 time_to_completion = 0.0;
479 min = now + time_to_completion; // when the task will complete if nothing changes
482 if ((action->getMaxDuration() > NO_MAX_DURATION) &&
483 (min == -1 || action->getStartTime() + action->getMaxDuration() < min)) {
484 // when the task will complete anyway because of the deadline if any
485 min = action->getStartTime() + action->getMaxDuration();
490 XBT_DEBUG("Action(%p) corresponds to variable %d", action, action->getVariable()->id_int);
492 XBT_DEBUG("Action(%p) Start %f. May finish at %f (got a share of %f). Max_duration %f", action,
493 action->getStartTime(), min, share,
494 action->getMaxDuration());
497 action->heapUpdate(actionHeap_, min, max_dur_flag ? MAX_DURATION : NORMAL);
498 XBT_DEBUG("Insert at heap action(%p) min %f now %f", action, min, now);
503 //hereafter must have already the min value for this resource model
504 if (xbt_heap_size(actionHeap_) > 0) {
505 double min = xbt_heap_maxkey(actionHeap_) - now;
506 XBT_DEBUG("minimum with the HEAP %f", min);
509 XBT_DEBUG("The HEAP is empty, thus returning -1");
514 double Model::nextOccuringEventFull(double /*now*/) {
515 maxminSystem_->solve_fun(maxminSystem_);
518 for (auto it(getRunningActionSet()->begin()), itend(getRunningActionSet()->end()); it != itend ; ++it) {
519 Action *action = &*it;
520 double value = lmm_variable_getvalue(action->getVariable());
522 if (action->getRemains() > 0)
523 value = action->getRemainsNoUpdate() / value;
526 if (min < 0 || value < min) {
528 XBT_DEBUG("Updating min (value) with %p: %f", action, min);
531 if ((action->getMaxDuration() >= 0) && (min<0 || action->getMaxDuration() < min)) {
532 min = action->getMaxDuration();
533 XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
536 XBT_DEBUG("min value : %f", min);
541 void Model::updateActionsState(double now, double delta)
543 if (updateMechanism_ == UM_FULL)
544 updateActionsStateFull(now, delta);
545 else if (updateMechanism_ == UM_LAZY)
546 updateActionsStateLazy(now, delta);
548 xbt_die("Invalid cpu update mechanism!");
551 void Model::updateActionsStateLazy(double /*now*/, double /*delta*/)
556 void Model::updateActionsStateFull(double /*now*/, double /*delta*/)
571 Resource::Resource(Model* model, const char* name, lmm_constraint_t constraint)
572 : name_(name), model_(model), constraint_(constraint)
575 Resource::~Resource() = default;
577 bool Resource::isOn() const {
580 bool Resource::isOff() const {
584 void Resource::turnOn()
589 void Resource::turnOff()
594 Model* Resource::model() const
599 const char* Resource::cname() const
601 return name_.c_str();
604 bool Resource::operator==(const Resource &other) const {
605 return name_ == other.name_;
608 lmm_constraint_t Resource::constraint() const
620 const char *surf_action_state_names[6] = {
622 "SURF_ACTION_RUNNING",
623 "SURF_ACTION_FAILED",
625 "SURF_ACTION_TO_FREE",
626 "SURF_ACTION_NOT_IN_THE_SYSTEM"
629 /* added to manage the communication action's heap */
630 void surf_action_lmm_update_index_heap(void *action, int i) {
631 static_cast<simgrid::surf::Action*>(action)->updateIndexHeap(i);
637 Action::Action(simgrid::surf::Model* model, double cost, bool failed) : Action(model, cost, failed, nullptr)
641 Action::Action(simgrid::surf::Model* model, double cost, bool failed, lmm_variable_t var)
642 : remains_(cost), start_(surf_get_clock()), cost_(cost), model_(model), variable_(var)
645 stateSet_ = getModel()->getFailedActionSet();
647 stateSet_ = getModel()->getRunningActionSet();
649 stateSet_->push_back(*this);
656 void Action::finish() {
657 finishTime_ = surf_get_clock();
660 Action::State Action::getState()
662 if (stateSet_ == model_->getReadyActionSet())
663 return Action::State::ready;
664 if (stateSet_ == model_->getRunningActionSet())
665 return Action::State::running;
666 if (stateSet_ == model_->getFailedActionSet())
667 return Action::State::failed;
668 if (stateSet_ == model_->getDoneActionSet())
669 return Action::State::done;
670 return Action::State::not_in_the_system;
673 void Action::setState(Action::State state)
675 stateSet_->erase(stateSet_->iterator_to(*this));
677 case Action::State::ready:
678 stateSet_ = model_->getReadyActionSet();
680 case Action::State::running:
681 stateSet_ = model_->getRunningActionSet();
683 case Action::State::failed:
684 stateSet_ = model_->getFailedActionSet();
686 case Action::State::done:
687 stateSet_ = model_->getDoneActionSet();
694 stateSet_->push_back(*this);
697 double Action::getBound()
699 return (variable_) ? lmm_variable_getbound(variable_) : 0;
702 void Action::setBound(double bound)
704 XBT_IN("(%p,%g)", this, bound);
706 lmm_update_variable_bound(getModel()->getMaxminSystem(), variable_, bound);
708 if (getModel()->getUpdateMechanism() == UM_LAZY && getLastUpdate() != surf_get_clock())
709 heapRemove(getModel()->getActionHeap());
713 double Action::getStartTime()
718 double Action::getFinishTime()
720 /* keep the function behavior, some models (cpu_ti) change the finish time before the action end */
721 return remains_ <= 0 ? finishTime_ : -1;
724 void Action::setData(void* data)
729 void Action::setCategory(const char *category)
731 category_ = xbt_strdup(category);
738 void Action::setMaxDuration(double duration)
740 maxDuration_ = duration;
741 if (getModel()->getUpdateMechanism() == UM_LAZY) // remove action from the heap
742 heapRemove(getModel()->getActionHeap());
745 void Action::gapRemove() {}
747 void Action::setPriority(double priority)
749 XBT_IN("(%p,%g)", this, priority);
750 priority_ = priority;
751 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority);
753 if (getModel()->getUpdateMechanism() == UM_LAZY)
754 heapRemove(getModel()->getActionHeap());
758 void Action::cancel(){
759 setState(Action::State::failed);
760 if (getModel()->getUpdateMechanism() == UM_LAZY) {
761 if (action_lmm_hook.is_linked())
762 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
763 heapRemove(getModel()->getActionHeap());
770 if (action_hook.is_linked())
771 stateSet_->erase(stateSet_->iterator_to(*this));
773 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
774 if (getModel()->getUpdateMechanism() == UM_LAZY) {
775 /* remove from heap */
776 heapRemove(getModel()->getActionHeap());
777 if (action_lmm_hook.is_linked())
778 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
786 void Action::suspend()
788 XBT_IN("(%p)", this);
789 if (suspended_ != 2) {
790 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
791 if (getModel()->getUpdateMechanism() == UM_LAZY){
792 heapRemove(getModel()->getActionHeap());
793 if (getModel()->getUpdateMechanism() == UM_LAZY && stateSet_ == getModel()->getRunningActionSet() && priority_ > 0){
794 //If we have a lazy model, we need to update the remaining value accordingly
795 updateRemainingLazy(surf_get_clock());
803 void Action::resume()
805 XBT_IN("(%p)", this);
806 if (suspended_ != 2) {
807 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority_);
809 if (getModel()->getUpdateMechanism() == UM_LAZY)
810 heapRemove(getModel()->getActionHeap());
815 bool Action::isSuspended()
817 return suspended_ == 1;
819 /* insert action on heap using a given key and a hat (heap_action_type)
820 * a hat can be of three types for communications:
822 * NORMAL = this is a normal heap entry stating the date to finish transmitting
823 * LATENCY = this is a heap entry to warn us when the latency is payed
824 * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached
826 void Action::heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat)
829 xbt_heap_push(heap, this, key);
832 void Action::heapRemove(xbt_heap_t heap)
835 if (indexHeap_ >= 0) {
836 xbt_heap_remove(heap, indexHeap_);
840 void Action::heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat)
843 if (indexHeap_ >= 0) {
844 xbt_heap_update(heap, indexHeap_, key);
846 xbt_heap_push(heap, this, key);
850 void Action::updateIndexHeap(int i) {
854 double Action::getRemains()
856 XBT_IN("(%p)", this);
857 /* update remains before return it */
858 if (getModel()->getUpdateMechanism() == UM_LAZY) /* update remains before return it */
859 updateRemainingLazy(surf_get_clock());
864 double Action::getRemainsNoUpdate()
869 //FIXME split code in the right places
870 void Action::updateRemainingLazy(double now)
874 if(getModel() == surf_network_model)
881 xbt_assert(stateSet_ == getModel()->getRunningActionSet(), "You're updating an action that is not running.");
882 xbt_assert(priority_ > 0, "You're updating an action that seems suspended.");
885 delta = now - lastUpdate_;
888 XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, remains_, lastUpdate_);
889 double_update(&remains_, lastValue_ * delta, sg_surf_precision*sg_maxmin_precision);
891 if (getModel() == surf_cpu_model_pm && TRACE_is_enabled()) {
892 simgrid::surf::Resource *cpu = static_cast<simgrid::surf::Resource*>(
893 lmm_constraint_id(lmm_get_cnst_from_var(getModel()->getMaxminSystem(), getVariable(), 0)));
894 TRACE_surf_host_set_utilization(cpu->cname(), getCategory(), lastValue_, lastUpdate_, now - lastUpdate_);
896 XBT_DEBUG("Updating action(%p): remains is now %f", this, remains_);
899 if(getModel() == surf_network_model)
901 if (maxDuration_ != NO_MAX_DURATION)
902 double_update(&maxDuration_, delta, sg_surf_precision);
904 //FIXME: duplicated code
905 if ((remains_ <= 0) &&
906 (lmm_get_variable_weight(getVariable()) > 0)) {
908 setState(Action::State::done);
909 heapRemove(getModel()->getActionHeap());
910 } else if (((maxDuration_ != NO_MAX_DURATION)
911 && (maxDuration_ <= 0))) {
913 setState(Action::State::done);
914 heapRemove(getModel()->getActionHeap());
919 lastValue_ = lmm_variable_getvalue(getVariable());