1 /* Copyright (c) 2004-2017. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "surf_interface.hpp"
8 #include "simgrid/s4u/Engine.hpp"
9 #include "simgrid/sg_config.h"
10 #include "src/instr/instr_private.h" // TRACE_is_enabled(). FIXME: remove by subscribing tracing to the surf signals
11 #include "src/kernel/routing/NetPoint.hpp"
12 #include "src/surf/HostImpl.hpp"
17 XBT_LOG_NEW_CATEGORY(surf, "All SURF categories");
18 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf, "Logging specific to SURF (kernel)");
24 std::vector<surf_model_t> * all_existing_models = nullptr; /* to destroy models correctly */
26 simgrid::trace_mgr::future_evt_set *future_evt_set = nullptr;
27 std::vector<std::string> surf_path;
28 std::vector<simgrid::s4u::Host*> host_that_restart;
29 xbt_dict_t watched_hosts_lib;
30 extern std::map<std::string, storage_type_t> storage_types;
35 simgrid::xbt::signal<void()> surfExitCallbacks;
39 #include <simgrid/plugins/energy.h> // FIXME: this plugin should not be linked to the core
40 #include <simgrid/plugins/load.h> // FIXME: this plugin should not be linked to the core
42 s_surf_model_description_t surf_plugin_description[] = {
43 {"Energy", "Cpu energy consumption.", &sg_host_energy_plugin_init},
44 {"Load", "Cpu load.", &sg_host_load_plugin_init},
45 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
48 /* Don't forget to update the option description in smx_config when you change this */
49 s_surf_model_description_t surf_network_model_description[] = {
50 {"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). ",
51 &surf_network_model_init_LegrandVelho},
53 "Simplistic network model where all communication take a constant time (one second). This model provides the lowest realism, but is (marginally) faster.",
54 &surf_network_model_init_Constant},
55 {"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)",
56 &surf_network_model_init_SMPI},
57 {"IB", "Realistic network model specifically tailored for HPC settings, with Infiniband contention model",
58 &surf_network_model_init_IB},
59 {"CM02", "Legacy network analytic model (Very similar to LV08, but without corrective factors. The timings of small messages are thus poorly modeled).",
60 &surf_network_model_init_CM02},
61 {"NS3", "Network pseudo-model using the NS3 tcp model instead of an analytic model", &surf_network_model_init_NS3},
62 {"Reno", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
63 &surf_network_model_init_Reno},
64 {"Reno2", "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_Reno2},
66 {"Vegas", "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_Vegas},
68 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
72 void surf_network_model_init_SMPI() {
73 xbt_die("Please activate SMPI support in cmake to use the SMPI network model.");
75 void surf_network_model_init_IB() {
76 xbt_die("Please activate SMPI support in cmake to use the IB network model.");
80 void surf_network_model_init_NS3() {
81 xbt_die("Please activate NS3 support in cmake and install the dependencies to use the NS3 network model.");
85 s_surf_model_description_t surf_cpu_model_description[] = {
86 {"Cas01", "Simplistic CPU model (time=size/power).", &surf_cpu_model_init_Cas01},
87 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
90 s_surf_model_description_t surf_host_model_description[] = {
91 {"default", "Default host model. Currently, CPU:Cas01 and network:LV08 (with cross traffic enabled)", &surf_host_model_init_current_default},
92 {"compound", "Host model that is automatically chosen if you change the network and CPU models", &surf_host_model_init_compound},
93 {"ptask_L07", "Host model somehow similar to Cas01+CM02 but allowing parallel tasks", &surf_host_model_init_ptask_L07},
94 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
97 s_surf_model_description_t surf_optimization_mode_description[] = {
98 {"Lazy", "Lazy action management (partial invalidation in lmm + heap in action remaining).", nullptr},
99 {"TI", "Trace integration. Highly optimized mode when using availability traces (only available for the Cas01 CPU model for now).", nullptr},
100 {"Full", "Full update of remaining and variables. Slow but may be useful when debugging.", nullptr},
101 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
104 s_surf_model_description_t surf_storage_model_description[] = {
105 {"default", "Simplistic storage model.", &surf_storage_model_init_default},
106 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
109 #if HAVE_THREAD_CONTEXTS
110 static xbt_parmap_t surf_parmap = nullptr; /* parallel map on models */
115 double surf_get_clock()
121 # define FILE_DELIM "\\"
123 # define FILE_DELIM "/" /* FIXME: move to better location */
126 std::ifstream* surf_ifsopen(const char* name)
128 std::ifstream* fs = new std::ifstream();
130 if (__surf_is_absolute_file_path(name)) { /* don't mess with absolute file names */
131 fs->open(name, std::ifstream::in);
134 /* search relative files in the path */
135 for (auto path_elm : surf_path) {
136 std::string buff = path_elm + FILE_DELIM + name;
137 fs->open(buff.c_str(), std::ifstream::in);
139 if (not fs->fail()) {
140 XBT_DEBUG("Found file at %s", buff.c_str());
147 FILE *surf_fopen(const char *name, const char *mode)
150 FILE *file = nullptr;
154 if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
155 return fopen(name, mode);
157 /* search relative files in the path */
158 for (auto path_elm : surf_path) {
159 buff = bprintf("%s" FILE_DELIM "%s", path_elm.c_str(), name);
160 file = fopen(buff, mode);
172 static const char *disk_drives_letter_table[MAX_DRIVE] = {
173 "A:\\","B:\\","C:\\","D:\\","E:\\","F:\\","G:\\","H:\\","I:\\","J:\\","K:\\","L:\\","M:\\",
174 "N:\\","O:\\","P:\\","Q:\\","R:\\","S:\\","T:\\","U:\\","V:\\","W:\\","X:\\","Y:\\","Z:\\"
179 * Returns the initial path. On Windows the initial path is
180 * the current directory for the current process in the other
181 * case the function returns "./" that represents the current
182 * directory on Unix/Linux platforms.
185 const char *__surf_get_initial_path()
190 char current_directory[MAX_PATH + 1] = { 0 };
191 unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
192 char root[4] = { 0 };
197 strncpy(root, current_directory, 3);
199 for (i = 0; i < MAX_DRIVE; i++) {
200 if (toupper(root[0]) == disk_drives_letter_table[i][0])
201 return disk_drives_letter_table[i];
210 /* The __surf_is_absolute_file_path() returns 1 if
211 * file_path is a absolute file path, in the other
212 * case the function returns 0.
214 int __surf_is_absolute_file_path(const char *file_path)
217 WIN32_FIND_DATA wfd = { 0 };
218 HANDLE hFile = FindFirstFile(file_path, &wfd);
220 if (INVALID_HANDLE_VALUE == hFile)
226 return (file_path[0] == '/');
230 /** Displays the long description of all registered models, and quit */
231 void model_help(const char *category, s_surf_model_description_t * table)
233 printf("Long description of the %s models accepted by this simulator:\n", category);
234 for (int i = 0; table[i].name; i++)
235 printf(" %s: %s\n", table[i].name, table[i].description);
238 int find_model_description(s_surf_model_description_t * table,
242 char *name_list = nullptr;
244 for (i = 0; table[i].name; i++)
245 if (not strcmp(name, table[i].name)) {
248 if (not table[0].name)
249 xbt_die("No model is valid! This is a bug.");
250 name_list = xbt_strdup(table[0].name);
251 for (i = 1; table[i].name; i++) {
252 name_list = (char *) xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 3);
253 strncat(name_list, ", ", 2);
254 strncat(name_list, table[i].name, strlen(table[i].name));
256 xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
260 static inline void surf_storage_free(void *r)
262 delete static_cast<simgrid::surf::Storage*>(r);
265 void sg_version_check(int lib_version_major,int lib_version_minor,int lib_version_patch) {
266 if ((lib_version_major != SIMGRID_VERSION_MAJOR) || (lib_version_minor != SIMGRID_VERSION_MINOR)) {
268 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
269 "and then linked against SimGrid %d.%d.%d. Please fix this.\n",
270 lib_version_major,lib_version_minor,lib_version_patch,
271 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
274 if (lib_version_patch != SIMGRID_VERSION_PATCH) {
275 if(SIMGRID_VERSION_PATCH >= 90 || lib_version_patch >=90){
277 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
278 "and then linked against SimGrid %d.%d.%d. \n"
279 "One of them is a development version, and should not be mixed with the stable release. Please fix this.\n",
280 lib_version_major,lib_version_minor,lib_version_patch,
281 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
285 "Warning: Your program was compiled with SimGrid version %d.%d.%d, "
286 "and then linked against SimGrid %d.%d.%d. Proceeding anyway.\n",
287 lib_version_major,lib_version_minor,lib_version_patch,
288 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
292 void sg_version_get(int* ver_major, int* ver_minor, int* ver_patch)
294 *ver_major = SIMGRID_VERSION_MAJOR;
295 *ver_minor = SIMGRID_VERSION_MINOR;
296 *ver_patch = SIMGRID_VERSION_PATCH;
301 std::printf("This program was linked against %s (git: %s), found in %s.\n",
302 SIMGRID_VERSION_STRING, SIMGRID_GIT_VERSION, SIMGRID_INSTALL_PREFIX);
305 std::printf(" Model-checking support compiled in.\n");
307 std::printf(" Model-checking support disabled at compilation.\n");
311 std::printf(" NS3 support compiled in.\n");
313 std::printf(" NS3 support disabled at compilation.\n");
316 #if SIMGRID_HAVE_JEDULE
317 std::printf(" Jedule support compiled in.\n");
319 std::printf(" Jedule support disabled at compilation.\n");
323 std::printf(" Lua support compiled in.\n");
325 std::printf(" Lua support disabled at compilation.\n");
328 #if SIMGRID_HAVE_MALLOCATOR
329 std::printf(" Mallocator support compiled in.\n");
331 std::printf(" Mallocator support disabled at compilation.\n");
334 std::printf("\nTo cite SimGrid in a publication, please use:\n"
335 " Henri Casanova, Arnaud Giersch, Arnaud Legrand, Martin Quinson, Frédéric Suter. \n"
336 " Versatile, Scalable, and Accurate Simulation of Distributed Applications and Platforms. \n"
337 " Journal of Parallel and Distributed Computing, Elsevier, 2014, 74 (10), pp.2899-2917.\n");
338 std::printf("The pdf file and a BibTeX entry for LaTeX users can be found at http://hal.inria.fr/hal-01017319\n");
341 void surf_init(int *argc, char **argv)
343 if (USER_HOST_LEVEL != -1) // Already initialized
346 XBT_DEBUG("Create all Libs");
347 USER_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
349 storage_lib = xbt_lib_new();
350 watched_hosts_lib = xbt_dict_new_homogeneous(nullptr);
352 XBT_DEBUG("Add SURF levels");
353 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_free);
355 xbt_init(argc, argv);
356 if (not all_existing_models)
357 all_existing_models = new std::vector<simgrid::surf::Model*>();
358 if (not future_evt_set)
359 future_evt_set = new simgrid::trace_mgr::future_evt_set();
362 simgrid::surf::surfExitCallbacks.connect(TRACE_surf_release);
364 sg_config_init(argc, argv);
372 TRACE_end(); /* Just in case it was not called by the upper layer (or there is no upper layer) */
375 xbt_lib_free(&storage_lib);
377 xbt_dict_free(&watched_hosts_lib);
378 for (auto e : storage_types) {
379 storage_type_t stype = e.second;
381 free(stype->type_id);
382 free(stype->content);
383 xbt_dict_free(&(stype->properties));
384 delete stype->model_properties;
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 (not 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();
489 XBT_DEBUG("Action(%p) corresponds to variable %d", action, action->getVariable()->id_int);
491 XBT_DEBUG("Action(%p) Start %f. May finish at %f (got a share of %f). Max_duration %f", action,
492 action->getStartTime(), min, share,
493 action->getMaxDuration());
496 action->heapUpdate(actionHeap_, min, max_dur_flag ? MAX_DURATION : NORMAL);
497 XBT_DEBUG("Insert at heap action(%p) min %f now %f", action, min, now);
502 //hereafter must have already the min value for this resource model
503 if (xbt_heap_size(actionHeap_) > 0) {
504 double min = xbt_heap_maxkey(actionHeap_) - now;
505 XBT_DEBUG("minimum with the HEAP %f", min);
508 XBT_DEBUG("The HEAP is empty, thus returning -1");
513 double Model::nextOccuringEventFull(double /*now*/) {
514 maxminSystem_->solve_fun(maxminSystem_);
517 for (auto it(getRunningActionSet()->begin()), itend(getRunningActionSet()->end()); it != itend ; ++it) {
518 Action *action = &*it;
519 double value = lmm_variable_getvalue(action->getVariable());
521 if (action->getRemains() > 0)
522 value = action->getRemainsNoUpdate() / value;
525 if (min < 0 || value < min) {
527 XBT_DEBUG("Updating min (value) with %p: %f", action, min);
530 if ((action->getMaxDuration() >= 0) && (min<0 || action->getMaxDuration() < min)) {
531 min = action->getMaxDuration();
532 XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
535 XBT_DEBUG("min value : %f", min);
540 void Model::updateActionsState(double now, double delta)
542 if (updateMechanism_ == UM_FULL)
543 updateActionsStateFull(now, delta);
544 else if (updateMechanism_ == UM_LAZY)
545 updateActionsStateLazy(now, delta);
547 xbt_die("Invalid cpu update mechanism!");
550 void Model::updateActionsStateLazy(double /*now*/, double /*delta*/)
555 void Model::updateActionsStateFull(double /*now*/, double /*delta*/)
570 Resource::Resource(Model* model, const char* name, lmm_constraint_t constraint)
571 : name_(name), model_(model), constraint_(constraint)
574 Resource::~Resource() = default;
576 bool Resource::isOn() const {
579 bool Resource::isOff() const {
583 void Resource::turnOn()
588 void Resource::turnOff()
593 Model* Resource::model() const
598 const char* Resource::cname() const
600 return name_.c_str();
603 bool Resource::operator==(const Resource &other) const {
604 return name_ == other.name_;
607 lmm_constraint_t Resource::constraint() const
619 const char *surf_action_state_names[6] = {
621 "SURF_ACTION_RUNNING",
622 "SURF_ACTION_FAILED",
624 "SURF_ACTION_TO_FREE",
625 "SURF_ACTION_NOT_IN_THE_SYSTEM"
628 /* added to manage the communication action's heap */
629 void surf_action_lmm_update_index_heap(void *action, int i) {
630 static_cast<simgrid::surf::Action*>(action)->updateIndexHeap(i);
636 Action::Action(simgrid::surf::Model* model, double cost, bool failed) : Action(model, cost, failed, nullptr)
640 Action::Action(simgrid::surf::Model* model, double cost, bool failed, lmm_variable_t var)
641 : remains_(cost), start_(surf_get_clock()), cost_(cost), model_(model), variable_(var)
644 stateSet_ = getModel()->getFailedActionSet();
646 stateSet_ = getModel()->getRunningActionSet();
648 stateSet_->push_back(*this);
655 void Action::finish() {
656 finishTime_ = surf_get_clock();
659 Action::State Action::getState()
661 if (stateSet_ == model_->getReadyActionSet())
662 return Action::State::ready;
663 if (stateSet_ == model_->getRunningActionSet())
664 return Action::State::running;
665 if (stateSet_ == model_->getFailedActionSet())
666 return Action::State::failed;
667 if (stateSet_ == model_->getDoneActionSet())
668 return Action::State::done;
669 return Action::State::not_in_the_system;
672 void Action::setState(Action::State state)
674 stateSet_->erase(stateSet_->iterator_to(*this));
676 case Action::State::ready:
677 stateSet_ = model_->getReadyActionSet();
679 case Action::State::running:
680 stateSet_ = model_->getRunningActionSet();
682 case Action::State::failed:
683 stateSet_ = model_->getFailedActionSet();
685 case Action::State::done:
686 stateSet_ = model_->getDoneActionSet();
693 stateSet_->push_back(*this);
696 double Action::getBound()
698 return (variable_) ? lmm_variable_getbound(variable_) : 0;
701 void Action::setBound(double bound)
703 XBT_IN("(%p,%g)", this, bound);
705 lmm_update_variable_bound(getModel()->getMaxminSystem(), variable_, bound);
707 if (getModel()->getUpdateMechanism() == UM_LAZY && getLastUpdate() != surf_get_clock())
708 heapRemove(getModel()->getActionHeap());
712 double Action::getStartTime()
717 double Action::getFinishTime()
719 /* keep the function behavior, some models (cpu_ti) change the finish time before the action end */
720 return remains_ <= 0 ? finishTime_ : -1;
723 void Action::setData(void* data)
728 void Action::setCategory(const char *category)
730 category_ = xbt_strdup(category);
737 void Action::setMaxDuration(double duration)
739 maxDuration_ = duration;
740 if (getModel()->getUpdateMechanism() == UM_LAZY) // remove action from the heap
741 heapRemove(getModel()->getActionHeap());
744 void Action::gapRemove() {}
746 void Action::setPriority(double priority)
748 XBT_IN("(%p,%g)", this, priority);
749 priority_ = priority;
750 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority);
752 if (getModel()->getUpdateMechanism() == UM_LAZY)
753 heapRemove(getModel()->getActionHeap());
757 void Action::cancel(){
758 setState(Action::State::failed);
759 if (getModel()->getUpdateMechanism() == UM_LAZY) {
760 if (action_lmm_hook.is_linked())
761 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
762 heapRemove(getModel()->getActionHeap());
769 if (action_hook.is_linked())
770 stateSet_->erase(stateSet_->iterator_to(*this));
772 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
773 if (getModel()->getUpdateMechanism() == UM_LAZY) {
774 /* remove from heap */
775 heapRemove(getModel()->getActionHeap());
776 if (action_lmm_hook.is_linked())
777 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
785 void Action::suspend()
787 XBT_IN("(%p)", this);
788 if (suspended_ != 2) {
789 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
790 if (getModel()->getUpdateMechanism() == UM_LAZY){
791 heapRemove(getModel()->getActionHeap());
792 if (getModel()->getUpdateMechanism() == UM_LAZY && stateSet_ == getModel()->getRunningActionSet() && priority_ > 0){
793 //If we have a lazy model, we need to update the remaining value accordingly
794 updateRemainingLazy(surf_get_clock());
802 void Action::resume()
804 XBT_IN("(%p)", this);
805 if (suspended_ != 2) {
806 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority_);
808 if (getModel()->getUpdateMechanism() == UM_LAZY)
809 heapRemove(getModel()->getActionHeap());
814 bool Action::isSuspended()
816 return suspended_ == 1;
818 /* insert action on heap using a given key and a hat (heap_action_type)
819 * a hat can be of three types for communications:
821 * NORMAL = this is a normal heap entry stating the date to finish transmitting
822 * LATENCY = this is a heap entry to warn us when the latency is payed
823 * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached
825 void Action::heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat)
828 xbt_heap_push(heap, this, key);
831 void Action::heapRemove(xbt_heap_t heap)
834 if (indexHeap_ >= 0) {
835 xbt_heap_remove(heap, indexHeap_);
839 void Action::heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat)
842 if (indexHeap_ >= 0) {
843 xbt_heap_update(heap, indexHeap_, key);
845 xbt_heap_push(heap, this, key);
849 void Action::updateIndexHeap(int i) {
853 double Action::getRemains()
855 XBT_IN("(%p)", this);
856 /* update remains before return it */
857 if (getModel()->getUpdateMechanism() == UM_LAZY) /* update remains before return it */
858 updateRemainingLazy(surf_get_clock());
863 double Action::getRemainsNoUpdate()
868 //FIXME split code in the right places
869 void Action::updateRemainingLazy(double now)
873 if(getModel() == surf_network_model)
880 xbt_assert(stateSet_ == getModel()->getRunningActionSet(), "You're updating an action that is not running.");
881 xbt_assert(priority_ > 0, "You're updating an action that seems suspended.");
884 delta = now - lastUpdate_;
887 XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, remains_, lastUpdate_);
888 double_update(&remains_, lastValue_ * delta, sg_surf_precision*sg_maxmin_precision);
890 if (getModel() == surf_cpu_model_pm && TRACE_is_enabled()) {
891 simgrid::surf::Resource *cpu = static_cast<simgrid::surf::Resource*>(
892 lmm_constraint_id(lmm_get_cnst_from_var(getModel()->getMaxminSystem(), getVariable(), 0)));
893 TRACE_surf_host_set_utilization(cpu->cname(), getCategory(), lastValue_, lastUpdate_, now - lastUpdate_);
895 XBT_DEBUG("Updating action(%p): remains is now %f", this, remains_);
898 if(getModel() == surf_network_model)
900 if (maxDuration_ != NO_MAX_DURATION)
901 double_update(&maxDuration_, delta, sg_surf_precision);
903 //FIXME: duplicated code
904 if ((remains_ <= 0) &&
905 (lmm_get_variable_weight(getVariable()) > 0)) {
907 setState(Action::State::done);
908 heapRemove(getModel()->getActionHeap());
909 } else if (((maxDuration_ != NO_MAX_DURATION)
910 && (maxDuration_ <= 0))) {
912 setState(Action::State::done);
913 heapRemove(getModel()->getActionHeap());
918 lastValue_ = lmm_variable_getvalue(getVariable());