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)
149 FILE *file = nullptr;
153 if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
154 return fopen(name, mode);
156 /* search relative files in the path */
157 for (auto path_elm : surf_path) {
158 char* buff = bprintf("%s" FILE_DELIM "%s", path_elm.c_str(), name);
159 file = fopen(buff, mode);
171 static const char *disk_drives_letter_table[MAX_DRIVE] = {
172 "A:\\","B:\\","C:\\","D:\\","E:\\","F:\\","G:\\","H:\\","I:\\","J:\\","K:\\","L:\\","M:\\",
173 "N:\\","O:\\","P:\\","Q:\\","R:\\","S:\\","T:\\","U:\\","V:\\","W:\\","X:\\","Y:\\","Z:\\"
178 * Returns the initial path. On Windows the initial path is
179 * the current directory for the current process in the other
180 * case the function returns "./" that represents the current
181 * directory on Unix/Linux platforms.
184 const char *__surf_get_initial_path()
189 char current_directory[MAX_PATH + 1] = { 0 };
190 unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
191 char root[4] = { 0 };
196 strncpy(root, current_directory, 3);
198 for (i = 0; i < MAX_DRIVE; i++) {
199 if (toupper(root[0]) == disk_drives_letter_table[i][0])
200 return disk_drives_letter_table[i];
209 /* The __surf_is_absolute_file_path() returns 1 if
210 * file_path is a absolute file path, in the other
211 * case the function returns 0.
213 int __surf_is_absolute_file_path(const char *file_path)
216 WIN32_FIND_DATA wfd = { 0 };
217 HANDLE hFile = FindFirstFile(file_path, &wfd);
219 if (INVALID_HANDLE_VALUE == hFile)
225 return (file_path[0] == '/');
229 /** Displays the long description of all registered models, and quit */
230 void model_help(const char *category, s_surf_model_description_t * table)
232 printf("Long description of the %s models accepted by this simulator:\n", category);
233 for (int i = 0; table[i].name; i++)
234 printf(" %s: %s\n", table[i].name, table[i].description);
237 int find_model_description(s_surf_model_description_t * table,
241 char *name_list = nullptr;
243 for (i = 0; table[i].name; i++)
244 if (not strcmp(name, table[i].name)) {
247 if (not table[0].name)
248 xbt_die("No model is valid! This is a bug.");
249 name_list = xbt_strdup(table[0].name);
250 for (i = 1; table[i].name; i++) {
251 name_list = (char *) xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 3);
252 strncat(name_list, ", ", 2);
253 strncat(name_list, table[i].name, strlen(table[i].name));
255 xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
259 static inline void surf_storage_free(void *r)
261 delete static_cast<simgrid::surf::StorageImpl*>(r);
264 void sg_version_check(int lib_version_major,int lib_version_minor,int lib_version_patch) {
265 if ((lib_version_major != SIMGRID_VERSION_MAJOR) || (lib_version_minor != SIMGRID_VERSION_MINOR)) {
267 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
268 "and then linked against SimGrid %d.%d.%d. Please fix this.\n",
269 lib_version_major,lib_version_minor,lib_version_patch,
270 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
273 if (lib_version_patch != SIMGRID_VERSION_PATCH) {
274 if(SIMGRID_VERSION_PATCH >= 90 || lib_version_patch >=90){
276 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
277 "and then linked against SimGrid %d.%d.%d. \n"
278 "One of them is a development version, and should not be mixed with the stable release. Please fix this.\n",
279 lib_version_major,lib_version_minor,lib_version_patch,
280 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
284 "Warning: Your program was compiled with SimGrid version %d.%d.%d, "
285 "and then linked against SimGrid %d.%d.%d. Proceeding anyway.\n",
286 lib_version_major,lib_version_minor,lib_version_patch,
287 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
291 void sg_version_get(int* ver_major, int* ver_minor, int* ver_patch)
293 *ver_major = SIMGRID_VERSION_MAJOR;
294 *ver_minor = SIMGRID_VERSION_MINOR;
295 *ver_patch = SIMGRID_VERSION_PATCH;
300 std::printf("This program was linked against %s (git: %s), found in %s.\n",
301 SIMGRID_VERSION_STRING, SIMGRID_GIT_VERSION, SIMGRID_INSTALL_PREFIX);
304 std::printf(" Model-checking support compiled in.\n");
306 std::printf(" Model-checking support disabled at compilation.\n");
310 std::printf(" NS3 support compiled in.\n");
312 std::printf(" NS3 support disabled at compilation.\n");
315 #if SIMGRID_HAVE_JEDULE
316 std::printf(" Jedule support compiled in.\n");
318 std::printf(" Jedule support disabled at compilation.\n");
322 std::printf(" Lua support compiled in.\n");
324 std::printf(" Lua support disabled at compilation.\n");
327 #if SIMGRID_HAVE_MALLOCATOR
328 std::printf(" Mallocator support compiled in.\n");
330 std::printf(" Mallocator support disabled at compilation.\n");
333 std::printf("\nTo cite SimGrid in a publication, please use:\n"
334 " Henri Casanova, Arnaud Giersch, Arnaud Legrand, Martin Quinson, Frédéric Suter. \n"
335 " Versatile, Scalable, and Accurate Simulation of Distributed Applications and Platforms. \n"
336 " Journal of Parallel and Distributed Computing, Elsevier, 2014, 74 (10), pp.2899-2917.\n");
337 std::printf("The pdf file and a BibTeX entry for LaTeX users can be found at http://hal.inria.fr/hal-01017319\n");
340 void surf_init(int *argc, char **argv)
342 if (USER_HOST_LEVEL != -1) // Already initialized
345 XBT_DEBUG("Create all Libs");
346 USER_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
348 storage_lib = xbt_lib_new();
349 watched_hosts_lib = xbt_dict_new_homogeneous(nullptr);
351 XBT_DEBUG("Add SURF levels");
352 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_free);
354 xbt_init(argc, argv);
355 if (not all_existing_models)
356 all_existing_models = new std::vector<simgrid::surf::Model*>();
357 if (not future_evt_set)
358 future_evt_set = new simgrid::trace_mgr::future_evt_set();
361 simgrid::surf::surfExitCallbacks.connect(TRACE_surf_release);
363 sg_config_init(argc, argv);
371 TRACE_end(); /* Just in case it was not called by the upper layer (or there is no upper layer) */
374 xbt_lib_free(&storage_lib);
376 xbt_dict_free(&watched_hosts_lib);
377 for (auto e : storage_types) {
378 storage_type_t stype = e.second;
380 free(stype->type_id);
381 free(stype->content);
382 xbt_dict_free(&(stype->properties));
383 delete stype->model_properties;
387 for (auto model : *all_existing_models)
389 delete all_existing_models;
391 simgrid::surf::surfExitCallbacks();
393 if (future_evt_set) {
394 delete future_evt_set;
395 future_evt_set = nullptr;
398 #if HAVE_THREAD_CONTEXTS
399 xbt_parmap_destroy(surf_parmap);
404 simgrid::s4u::Engine::shutdown();
406 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
417 : maxminSystem_(nullptr)
419 readyActionSet_ = new ActionList();
420 runningActionSet_ = new ActionList();
421 failedActionSet_ = new ActionList();
422 doneActionSet_ = new ActionList();
424 modifiedSet_ = nullptr;
425 actionHeap_ = nullptr;
426 updateMechanism_ = UM_UNDEFINED;
427 selectiveUpdate_ = 0;
431 delete readyActionSet_;
432 delete runningActionSet_;
433 delete failedActionSet_;
434 delete doneActionSet_;
437 double Model::nextOccuringEvent(double now)
439 //FIXME: set the good function once and for all
440 if (updateMechanism_ == UM_LAZY)
441 return nextOccuringEventLazy(now);
442 else if (updateMechanism_ == UM_FULL)
443 return nextOccuringEventFull(now);
445 xbt_die("Invalid cpu update mechanism!");
448 double Model::nextOccuringEventLazy(double now)
450 XBT_DEBUG("Before share resources, the size of modified actions set is %zd", modifiedSet_->size());
451 lmm_solve(maxminSystem_);
452 XBT_DEBUG("After share resources, The size of modified actions set is %zd", modifiedSet_->size());
454 while (not modifiedSet_->empty()) {
455 Action *action = &(modifiedSet_->front());
456 modifiedSet_->pop_front();
457 bool max_dur_flag = false;
459 if (action->getStateSet() != runningActionSet_)
462 /* bogus priority, skip it */
463 if (action->getPriority() <= 0 || action->getHat()==LATENCY)
466 action->updateRemainingLazy(now);
469 double share = lmm_variable_getvalue(action->getVariable());
472 double time_to_completion;
473 if (action->getRemains() > 0) {
474 time_to_completion = action->getRemainsNoUpdate() / share;
476 time_to_completion = 0.0;
478 min = now + time_to_completion; // when the task will complete if nothing changes
481 if ((action->getMaxDuration() > NO_MAX_DURATION) &&
482 (min <= -1 || action->getStartTime() + action->getMaxDuration() < min)) {
483 // when the task will complete anyway because of the deadline if any
484 min = action->getStartTime() + action->getMaxDuration();
488 XBT_DEBUG("Action(%p) corresponds to variable %d", action, action->getVariable()->id_int);
490 XBT_DEBUG("Action(%p) Start %f. May finish at %f (got a share of %f). Max_duration %f", action,
491 action->getStartTime(), min, share,
492 action->getMaxDuration());
495 action->heapUpdate(actionHeap_, min, max_dur_flag ? MAX_DURATION : NORMAL);
496 XBT_DEBUG("Insert at heap action(%p) min %f now %f", action, min, now);
501 //hereafter must have already the min value for this resource model
502 if (xbt_heap_size(actionHeap_) > 0) {
503 double min = xbt_heap_maxkey(actionHeap_) - now;
504 XBT_DEBUG("minimum with the HEAP %f", min);
507 XBT_DEBUG("The HEAP is empty, thus returning -1");
512 double Model::nextOccuringEventFull(double /*now*/) {
513 maxminSystem_->solve_fun(maxminSystem_);
516 for (auto it(getRunningActionSet()->begin()), itend(getRunningActionSet()->end()); it != itend ; ++it) {
517 Action *action = &*it;
518 double value = lmm_variable_getvalue(action->getVariable());
520 if (action->getRemains() > 0)
521 value = action->getRemainsNoUpdate() / value;
524 if (min < 0 || value < min) {
526 XBT_DEBUG("Updating min (value) with %p: %f", action, min);
529 if ((action->getMaxDuration() >= 0) && (min<0 || action->getMaxDuration() < min)) {
530 min = action->getMaxDuration();
531 XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
534 XBT_DEBUG("min value : %f", min);
539 void Model::updateActionsState(double now, double delta)
541 if (updateMechanism_ == UM_FULL)
542 updateActionsStateFull(now, delta);
543 else if (updateMechanism_ == UM_LAZY)
544 updateActionsStateLazy(now, delta);
546 xbt_die("Invalid cpu update mechanism!");
549 void Model::updateActionsStateLazy(double /*now*/, double /*delta*/)
554 void Model::updateActionsStateFull(double /*now*/, double /*delta*/)
569 Resource::Resource(Model* model, const char* name, lmm_constraint_t constraint)
570 : name_(name), model_(model), constraint_(constraint)
573 Resource::~Resource() = default;
575 bool Resource::isOn() const {
578 bool Resource::isOff() const {
582 void Resource::turnOn()
587 void Resource::turnOff()
592 Model* Resource::model() const
597 const char* Resource::cname() const
599 return name_.c_str();
602 bool Resource::operator==(const Resource &other) const {
603 return name_ == other.name_;
606 lmm_constraint_t Resource::constraint() const
618 const char *surf_action_state_names[6] = {
620 "SURF_ACTION_RUNNING",
621 "SURF_ACTION_FAILED",
623 "SURF_ACTION_TO_FREE",
624 "SURF_ACTION_NOT_IN_THE_SYSTEM"
627 /* added to manage the communication action's heap */
628 void surf_action_lmm_update_index_heap(void *action, int i) {
629 static_cast<simgrid::surf::Action*>(action)->updateIndexHeap(i);
635 Action::Action(simgrid::surf::Model* model, double cost, bool failed) : Action(model, cost, failed, nullptr)
639 Action::Action(simgrid::surf::Model* model, double cost, bool failed, lmm_variable_t var)
640 : remains_(cost), start_(surf_get_clock()), cost_(cost), model_(model), variable_(var)
643 stateSet_ = getModel()->getFailedActionSet();
645 stateSet_ = getModel()->getRunningActionSet();
647 stateSet_->push_back(*this);
654 void Action::finish() {
655 finishTime_ = surf_get_clock();
658 Action::State Action::getState()
660 if (stateSet_ == model_->getReadyActionSet())
661 return Action::State::ready;
662 if (stateSet_ == model_->getRunningActionSet())
663 return Action::State::running;
664 if (stateSet_ == model_->getFailedActionSet())
665 return Action::State::failed;
666 if (stateSet_ == model_->getDoneActionSet())
667 return Action::State::done;
668 return Action::State::not_in_the_system;
671 void Action::setState(Action::State state)
673 stateSet_->erase(stateSet_->iterator_to(*this));
675 case Action::State::ready:
676 stateSet_ = model_->getReadyActionSet();
678 case Action::State::running:
679 stateSet_ = model_->getRunningActionSet();
681 case Action::State::failed:
682 stateSet_ = model_->getFailedActionSet();
684 case Action::State::done:
685 stateSet_ = model_->getDoneActionSet();
692 stateSet_->push_back(*this);
695 double Action::getBound()
697 return (variable_) ? lmm_variable_getbound(variable_) : 0;
700 void Action::setBound(double bound)
702 XBT_IN("(%p,%g)", this, bound);
704 lmm_update_variable_bound(getModel()->getMaxminSystem(), variable_, bound);
706 if (getModel()->getUpdateMechanism() == UM_LAZY && getLastUpdate() != surf_get_clock())
707 heapRemove(getModel()->getActionHeap());
711 double Action::getStartTime()
716 double Action::getFinishTime()
718 /* keep the function behavior, some models (cpu_ti) change the finish time before the action end */
719 return remains_ <= 0 ? finishTime_ : -1;
722 void Action::setData(void* data)
727 void Action::setCategory(const char *category)
729 category_ = xbt_strdup(category);
736 void Action::setMaxDuration(double duration)
738 maxDuration_ = duration;
739 if (getModel()->getUpdateMechanism() == UM_LAZY) // remove action from the heap
740 heapRemove(getModel()->getActionHeap());
743 void Action::gapRemove() {}
745 void Action::setPriority(double priority)
747 XBT_IN("(%p,%g)", this, priority);
748 priority_ = priority;
749 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority);
751 if (getModel()->getUpdateMechanism() == UM_LAZY)
752 heapRemove(getModel()->getActionHeap());
756 void Action::cancel(){
757 setState(Action::State::failed);
758 if (getModel()->getUpdateMechanism() == UM_LAZY) {
759 if (action_lmm_hook.is_linked())
760 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
761 heapRemove(getModel()->getActionHeap());
768 if (action_hook.is_linked())
769 stateSet_->erase(stateSet_->iterator_to(*this));
771 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
772 if (getModel()->getUpdateMechanism() == UM_LAZY) {
773 /* remove from heap */
774 heapRemove(getModel()->getActionHeap());
775 if (action_lmm_hook.is_linked())
776 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
784 void Action::suspend()
786 XBT_IN("(%p)", this);
787 if (suspended_ != 2) {
788 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
789 if (getModel()->getUpdateMechanism() == UM_LAZY){
790 heapRemove(getModel()->getActionHeap());
791 if (getModel()->getUpdateMechanism() == UM_LAZY && stateSet_ == getModel()->getRunningActionSet() && priority_ > 0){
792 //If we have a lazy model, we need to update the remaining value accordingly
793 updateRemainingLazy(surf_get_clock());
801 void Action::resume()
803 XBT_IN("(%p)", this);
804 if (suspended_ != 2) {
805 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority_);
807 if (getModel()->getUpdateMechanism() == UM_LAZY)
808 heapRemove(getModel()->getActionHeap());
813 bool Action::isSuspended()
815 return suspended_ == 1;
817 /* insert action on heap using a given key and a hat (heap_action_type)
818 * a hat can be of three types for communications:
820 * NORMAL = this is a normal heap entry stating the date to finish transmitting
821 * LATENCY = this is a heap entry to warn us when the latency is payed
822 * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached
824 void Action::heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat)
827 xbt_heap_push(heap, this, key);
830 void Action::heapRemove(xbt_heap_t heap)
833 if (indexHeap_ >= 0) {
834 xbt_heap_remove(heap, indexHeap_);
838 void Action::heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat)
841 if (indexHeap_ >= 0) {
842 xbt_heap_update(heap, indexHeap_, key);
844 xbt_heap_push(heap, this, key);
848 void Action::updateIndexHeap(int i) {
852 double Action::getRemains()
854 XBT_IN("(%p)", this);
855 /* update remains before return it */
856 if (getModel()->getUpdateMechanism() == UM_LAZY) /* update remains before return it */
857 updateRemainingLazy(surf_get_clock());
862 double Action::getRemainsNoUpdate()
867 //FIXME split code in the right places
868 void Action::updateRemainingLazy(double now)
872 if(getModel() == surf_network_model)
879 xbt_assert(stateSet_ == getModel()->getRunningActionSet(), "You're updating an action that is not running.");
880 xbt_assert(priority_ > 0, "You're updating an action that seems suspended.");
883 delta = now - lastUpdate_;
886 XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, remains_, lastUpdate_);
887 double_update(&remains_, lastValue_ * delta, sg_surf_precision*sg_maxmin_precision);
889 if (getModel() == surf_cpu_model_pm && TRACE_is_enabled()) {
890 simgrid::surf::Resource *cpu = static_cast<simgrid::surf::Resource*>(
891 lmm_constraint_id(lmm_get_cnst_from_var(getModel()->getMaxminSystem(), getVariable(), 0)));
892 TRACE_surf_host_set_utilization(cpu->cname(), getCategory(), lastValue_, lastUpdate_, now - lastUpdate_);
894 XBT_DEBUG("Updating action(%p): remains is now %f", this, remains_);
897 if(getModel() == surf_network_model)
899 if (maxDuration_ != NO_MAX_DURATION)
900 double_update(&maxDuration_, delta, sg_surf_precision);
902 //FIXME: duplicated code
903 if ((remains_ <= 0) &&
904 (lmm_get_variable_weight(getVariable()) > 0)) {
906 setState(Action::State::done);
907 heapRemove(getModel()->getActionHeap());
908 } else if (((maxDuration_ != NO_MAX_DURATION)
909 && (maxDuration_ <= 0))) {
911 setState(Action::State::done);
912 heapRemove(getModel()->getActionHeap());
917 lastValue_ = lmm_variable_getvalue(getVariable());