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;
35 extern std::map<std::string, storage_type_t> storage_types;
40 simgrid::xbt::signal<void(void)> surfExitCallbacks;
45 #include <simgrid/plugins/energy.h> // FIXME: this plugin should not be linked to the core
46 #include <simgrid/plugins/load.h> // FIXME: this plugin should not be linked to the core
48 s_surf_model_description_t surf_plugin_description[] = {
49 {"Energy", "Cpu energy consumption.", &sg_host_energy_plugin_init},
50 {"Load", "Cpu load.", &sg_host_load_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},
67 {"NS3", "Network pseudo-model using the NS3 tcp model instead of an analytic model", &surf_network_model_init_NS3},
68 {"Reno", "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
69 &surf_network_model_init_Reno},
70 {"Reno2", "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_Reno2},
72 {"Vegas", "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_Vegas},
74 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
78 void surf_network_model_init_SMPI() {
79 xbt_die("Please activate SMPI support in cmake to use the SMPI network model.");
81 void surf_network_model_init_IB() {
82 xbt_die("Please activate SMPI support in cmake to use the IB network model.");
86 void surf_network_model_init_NS3() {
87 xbt_die("Please activate NS3 support in cmake and install the dependencies to use the NS3 network model.");
91 s_surf_model_description_t surf_cpu_model_description[] = {
92 {"Cas01", "Simplistic CPU model (time=size/power).", &surf_cpu_model_init_Cas01},
93 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
96 s_surf_model_description_t surf_host_model_description[] = {
97 {"default", "Default host model. Currently, CPU:Cas01 and network:LV08 (with cross traffic enabled)", &surf_host_model_init_current_default},
98 {"compound", "Host model that is automatically chosen if you change the network and CPU models", &surf_host_model_init_compound},
99 {"ptask_L07", "Host model somehow similar to Cas01+CM02 but allowing parallel tasks", &surf_host_model_init_ptask_L07},
100 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
103 s_surf_model_description_t surf_optimization_mode_description[] = {
104 {"Lazy", "Lazy action management (partial invalidation in lmm + heap in action remaining).", nullptr},
105 {"TI", "Trace integration. Highly optimized mode when using availability traces (only available for the Cas01 CPU model for now).", nullptr},
106 {"Full", "Full update of remaining and variables. Slow but may be useful when debugging.", nullptr},
107 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
110 s_surf_model_description_t surf_storage_model_description[] = {
111 {"default", "Simplistic storage model.", &surf_storage_model_init_default},
112 {nullptr, nullptr, nullptr} /* this array must be nullptr terminated */
115 #if HAVE_THREAD_CONTEXTS
116 static xbt_parmap_t surf_parmap = nullptr; /* parallel map on models */
121 double surf_get_clock()
127 # define FILE_DELIM "\\"
129 # define FILE_DELIM "/" /* FIXME: move to better location */
132 std::ifstream* surf_ifsopen(const char* name)
134 std::ifstream* fs = new std::ifstream();
136 if (__surf_is_absolute_file_path(name)) { /* don't mess with absolute file names */
137 fs->open(name, std::ifstream::in);
140 /* search relative files in the path */
141 for (auto path_elm : surf_path) {
142 std::string buff = path_elm + FILE_DELIM + name;
143 fs->open(buff.c_str(), std::ifstream::in);
146 XBT_DEBUG("Found file at %s", buff.c_str());
153 FILE *surf_fopen(const char *name, const char *mode)
156 FILE *file = nullptr;
160 if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
161 return fopen(name, mode);
163 /* search relative files in the path */
164 for (auto path_elm : surf_path) {
165 buff = bprintf("%s" FILE_DELIM "%s", path_elm.c_str(), name);
166 file = fopen(buff, mode);
178 static const char *disk_drives_letter_table[MAX_DRIVE] = {
179 "A:\\","B:\\","C:\\","D:\\","E:\\","F:\\","G:\\","H:\\","I:\\","J:\\","K:\\","L:\\","M:\\",
180 "N:\\","O:\\","P:\\","Q:\\","R:\\","S:\\","T:\\","U:\\","V:\\","W:\\","X:\\","Y:\\","Z:\\"
185 * Returns the initial path. On Windows the initial path is
186 * the current directory for the current process in the other
187 * case the function returns "./" that represents the current
188 * directory on Unix/Linux platforms.
191 const char *__surf_get_initial_path()
196 char current_directory[MAX_PATH + 1] = { 0 };
197 unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
198 char root[4] = { 0 };
203 strncpy(root, current_directory, 3);
205 for (i = 0; i < MAX_DRIVE; i++) {
206 if (toupper(root[0]) == disk_drives_letter_table[i][0])
207 return disk_drives_letter_table[i];
216 /* The __surf_is_absolute_file_path() returns 1 if
217 * file_path is a absolute file path, in the other
218 * case the function returns 0.
220 int __surf_is_absolute_file_path(const char *file_path)
223 WIN32_FIND_DATA wfd = { 0 };
224 HANDLE hFile = FindFirstFile(file_path, &wfd);
226 if (INVALID_HANDLE_VALUE == hFile)
232 return (file_path[0] == '/');
236 /** Displays the long description of all registered models, and quit */
237 void model_help(const char *category, s_surf_model_description_t * table)
239 printf("Long description of the %s models accepted by this simulator:\n", category);
240 for (int i = 0; table[i].name; i++)
241 printf(" %s: %s\n", table[i].name, table[i].description);
244 int find_model_description(s_surf_model_description_t * table,
248 char *name_list = nullptr;
250 for (i = 0; table[i].name; i++)
251 if (!strcmp(name, table[i].name)) {
255 xbt_die("No model is valid! This is a bug.");
256 name_list = xbt_strdup(table[0].name);
257 for (i = 1; table[i].name; i++) {
258 name_list = (char *) xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 3);
259 strncat(name_list, ", ", 2);
260 strncat(name_list, table[i].name, strlen(table[i].name));
262 xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
266 static inline void surf_storage_free(void *r)
268 delete static_cast<simgrid::surf::Storage*>(r);
271 void sg_version_check(int lib_version_major,int lib_version_minor,int lib_version_patch) {
272 if ((lib_version_major != SIMGRID_VERSION_MAJOR) || (lib_version_minor != SIMGRID_VERSION_MINOR)) {
274 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
275 "and then linked against SimGrid %d.%d.%d. Please fix this.\n",
276 lib_version_major,lib_version_minor,lib_version_patch,
277 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
280 if (lib_version_patch != SIMGRID_VERSION_PATCH) {
281 if(SIMGRID_VERSION_PATCH >= 90 || lib_version_patch >=90){
283 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
284 "and then linked against SimGrid %d.%d.%d. \n"
285 "One of them is a development version, and should not be mixed with the stable release. Please fix this.\n",
286 lib_version_major,lib_version_minor,lib_version_patch,
287 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
291 "Warning: Your program was compiled with SimGrid version %d.%d.%d, "
292 "and then linked against SimGrid %d.%d.%d. Proceeding anyway.\n",
293 lib_version_major,lib_version_minor,lib_version_patch,
294 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
298 void sg_version_get(int* ver_major, int* ver_minor, int* ver_patch)
300 *ver_major = SIMGRID_VERSION_MAJOR;
301 *ver_minor = SIMGRID_VERSION_MINOR;
302 *ver_patch = SIMGRID_VERSION_PATCH;
307 std::printf("This program was linked against %s (git: %s), found in %s.\n",
308 SIMGRID_VERSION_STRING, SIMGRID_GIT_VERSION, SIMGRID_INSTALL_PREFIX);
311 std::printf(" Model-checking support compiled in.\n");
313 std::printf(" Model-checking support disabled at compilation.\n");
317 std::printf(" NS3 support compiled in.\n");
319 std::printf(" NS3 support disabled at compilation.\n");
323 std::printf(" Jedule support compiled in.\n");
325 std::printf(" Jedule support disabled at compilation.\n");
329 std::printf(" Lua support compiled in.\n");
331 std::printf(" Lua support disabled at compilation.\n");
335 std::printf(" Mallocator support compiled in.\n");
337 std::printf(" Mallocator support disabled at compilation.\n");
340 std::printf("\nTo cite SimGrid in a publication, please use:\n"
341 " Henri Casanova, Arnaud Giersch, Arnaud Legrand, Martin Quinson, Frédéric Suter. \n"
342 " Versatile, Scalable, and Accurate Simulation of Distributed Applications and Platforms. \n"
343 " Journal of Parallel and Distributed Computing, Elsevier, 2014, 74 (10), pp.2899-2917.\n");
344 std::printf("The pdf file and a BibTeX entry for LaTeX users can be found at http://hal.inria.fr/hal-01017319\n");
347 void surf_init(int *argc, char **argv)
349 if (USER_HOST_LEVEL != -1) // Already initialized
352 XBT_DEBUG("Create all Libs");
353 USER_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
355 storage_lib = xbt_lib_new();
356 watched_hosts_lib = xbt_dict_new_homogeneous(nullptr);
358 XBT_DEBUG("Add SURF levels");
359 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_free);
361 xbt_init(argc, argv);
362 if (!all_existing_models)
363 all_existing_models = new std::vector<simgrid::surf::Model*>();
365 future_evt_set = new simgrid::trace_mgr::future_evt_set();
368 simgrid::surf::surfExitCallbacks.connect(TRACE_surf_release);
370 sg_config_init(argc, argv);
378 TRACE_end(); /* Just in case it was not called by the upper layer (or there is no upper layer) */
381 xbt_lib_free(&storage_lib);
383 xbt_dict_free(&watched_hosts_lib);
384 for (auto e : storage_types) {
385 storage_type_t stype = e.second;
387 free(stype->type_id);
388 free(stype->content);
389 free(stype->content_type);
390 xbt_dict_free(&(stype->properties));
391 delete stype->model_properties;
395 for (auto model : *all_existing_models)
397 delete all_existing_models;
399 simgrid::surf::surfExitCallbacks();
401 if (future_evt_set) {
402 delete future_evt_set;
403 future_evt_set = nullptr;
406 #if HAVE_THREAD_CONTEXTS
407 xbt_parmap_destroy(surf_parmap);
412 simgrid::s4u::Engine::shutdown();
414 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
425 : maxminSystem_(nullptr)
427 readyActionSet_ = new ActionList();
428 runningActionSet_ = new ActionList();
429 failedActionSet_ = new ActionList();
430 doneActionSet_ = new ActionList();
432 modifiedSet_ = nullptr;
433 actionHeap_ = nullptr;
434 updateMechanism_ = UM_UNDEFINED;
435 selectiveUpdate_ = 0;
439 delete readyActionSet_;
440 delete runningActionSet_;
441 delete failedActionSet_;
442 delete doneActionSet_;
445 double Model::nextOccuringEvent(double now)
447 //FIXME: set the good function once and for all
448 if (updateMechanism_ == UM_LAZY)
449 return nextOccuringEventLazy(now);
450 else if (updateMechanism_ == UM_FULL)
451 return nextOccuringEventFull(now);
453 xbt_die("Invalid cpu update mechanism!");
456 double Model::nextOccuringEventLazy(double now)
458 XBT_DEBUG("Before share resources, the size of modified actions set is %zd", modifiedSet_->size());
459 lmm_solve(maxminSystem_);
460 XBT_DEBUG("After share resources, The size of modified actions set is %zd", modifiedSet_->size());
462 while(!modifiedSet_->empty()) {
463 Action *action = &(modifiedSet_->front());
464 modifiedSet_->pop_front();
465 bool max_dur_flag = false;
467 if (action->getStateSet() != runningActionSet_)
470 /* bogus priority, skip it */
471 if (action->getPriority() <= 0 || action->getHat()==LATENCY)
474 action->updateRemainingLazy(now);
477 double share = lmm_variable_getvalue(action->getVariable());
480 double time_to_completion;
481 if (action->getRemains() > 0) {
482 time_to_completion = action->getRemainsNoUpdate() / share;
484 time_to_completion = 0.0;
486 min = now + time_to_completion; // when the task will complete if nothing changes
489 if ((action->getMaxDuration() > NO_MAX_DURATION) &&
490 (min == -1 || action->getStartTime() + action->getMaxDuration() < min)) {
491 // when the task will complete anyway because of the deadline if any
492 min = action->getStartTime() + action->getMaxDuration();
497 XBT_DEBUG("Action(%p) corresponds to variable %d", action, action->getVariable()->id_int);
499 XBT_DEBUG("Action(%p) Start %f. May finish at %f (got a share of %f). Max_duration %f", action,
500 action->getStartTime(), min, share,
501 action->getMaxDuration());
504 action->heapUpdate(actionHeap_, min, max_dur_flag ? MAX_DURATION : NORMAL);
505 XBT_DEBUG("Insert at heap action(%p) min %f now %f", action, min, now);
510 //hereafter must have already the min value for this resource model
511 if (xbt_heap_size(actionHeap_) > 0) {
512 double min = xbt_heap_maxkey(actionHeap_) - now;
513 XBT_DEBUG("minimum with the HEAP %f", min);
516 XBT_DEBUG("The HEAP is empty, thus returning -1");
521 double Model::nextOccuringEventFull(double /*now*/) {
522 maxminSystem_->solve_fun(maxminSystem_);
525 for (auto it(getRunningActionSet()->begin()), itend(getRunningActionSet()->end()); it != itend ; ++it) {
526 Action *action = &*it;
527 double value = lmm_variable_getvalue(action->getVariable());
529 if (action->getRemains() > 0)
530 value = action->getRemainsNoUpdate() / value;
533 if (min < 0 || value < min) {
535 XBT_DEBUG("Updating min (value) with %p: %f", action, min);
538 if ((action->getMaxDuration() >= 0) && (min<0 || action->getMaxDuration() < min)) {
539 min = action->getMaxDuration();
540 XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
543 XBT_DEBUG("min value : %f", min);
548 void Model::updateActionsState(double now, double delta)
550 if (updateMechanism_ == UM_FULL)
551 updateActionsStateFull(now, delta);
552 else if (updateMechanism_ == UM_LAZY)
553 updateActionsStateLazy(now, delta);
555 xbt_die("Invalid cpu update mechanism!");
558 void Model::updateActionsStateLazy(double /*now*/, double /*delta*/)
563 void Model::updateActionsStateFull(double /*now*/, double /*delta*/)
578 Resource::Resource(Model* model, const char* name, lmm_constraint_t constraint)
579 : name_(name), model_(model), constraint_(constraint)
582 Resource::~Resource() = default;
584 bool Resource::isOn() const {
587 bool Resource::isOff() const {
591 void Resource::turnOn()
596 void Resource::turnOff()
601 Model* Resource::model() const
606 const char* Resource::cname() const
608 return name_.c_str();
611 bool Resource::operator==(const Resource &other) const {
612 return name_ == other.name_;
615 lmm_constraint_t Resource::constraint() const
627 const char *surf_action_state_names[6] = {
629 "SURF_ACTION_RUNNING",
630 "SURF_ACTION_FAILED",
632 "SURF_ACTION_TO_FREE",
633 "SURF_ACTION_NOT_IN_THE_SYSTEM"
636 /* added to manage the communication action's heap */
637 void surf_action_lmm_update_index_heap(void *action, int i) {
638 static_cast<simgrid::surf::Action*>(action)->updateIndexHeap(i);
644 Action::Action(simgrid::surf::Model* model, double cost, bool failed) : Action(model, cost, failed, nullptr)
648 Action::Action(simgrid::surf::Model* model, double cost, bool failed, lmm_variable_t var)
649 : remains_(cost), start_(surf_get_clock()), cost_(cost), model_(model), variable_(var)
652 stateSet_ = getModel()->getFailedActionSet();
654 stateSet_ = getModel()->getRunningActionSet();
656 stateSet_->push_back(*this);
663 void Action::finish() {
664 finishTime_ = surf_get_clock();
667 Action::State Action::getState()
669 if (stateSet_ == model_->getReadyActionSet())
670 return Action::State::ready;
671 if (stateSet_ == model_->getRunningActionSet())
672 return Action::State::running;
673 if (stateSet_ == model_->getFailedActionSet())
674 return Action::State::failed;
675 if (stateSet_ == model_->getDoneActionSet())
676 return Action::State::done;
677 return Action::State::not_in_the_system;
680 void Action::setState(Action::State state)
682 stateSet_->erase(stateSet_->iterator_to(*this));
684 case Action::State::ready:
685 stateSet_ = model_->getReadyActionSet();
687 case Action::State::running:
688 stateSet_ = model_->getRunningActionSet();
690 case Action::State::failed:
691 stateSet_ = model_->getFailedActionSet();
693 case Action::State::done:
694 stateSet_ = model_->getDoneActionSet();
701 stateSet_->push_back(*this);
704 double Action::getBound()
706 return (variable_) ? lmm_variable_getbound(variable_) : 0;
709 void Action::setBound(double bound)
711 XBT_IN("(%p,%g)", this, bound);
713 lmm_update_variable_bound(getModel()->getMaxminSystem(), variable_, bound);
715 if (getModel()->getUpdateMechanism() == UM_LAZY && getLastUpdate() != surf_get_clock())
716 heapRemove(getModel()->getActionHeap());
720 double Action::getStartTime()
725 double Action::getFinishTime()
727 /* keep the function behavior, some models (cpu_ti) change the finish time before the action end */
728 return remains_ <= 0 ? finishTime_ : -1;
731 void Action::setData(void* data)
736 void Action::setCategory(const char *category)
738 category_ = xbt_strdup(category);
745 void Action::setMaxDuration(double duration)
747 maxDuration_ = duration;
748 if (getModel()->getUpdateMechanism() == UM_LAZY) // remove action from the heap
749 heapRemove(getModel()->getActionHeap());
752 void Action::gapRemove() {}
754 void Action::setPriority(double priority)
756 XBT_IN("(%p,%g)", this, priority);
757 priority_ = priority;
758 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority);
760 if (getModel()->getUpdateMechanism() == UM_LAZY)
761 heapRemove(getModel()->getActionHeap());
765 void Action::cancel(){
766 setState(Action::State::failed);
767 if (getModel()->getUpdateMechanism() == UM_LAZY) {
768 if (action_lmm_hook.is_linked())
769 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
770 heapRemove(getModel()->getActionHeap());
777 if (action_hook.is_linked())
778 stateSet_->erase(stateSet_->iterator_to(*this));
780 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
781 if (getModel()->getUpdateMechanism() == UM_LAZY) {
782 /* remove from heap */
783 heapRemove(getModel()->getActionHeap());
784 if (action_lmm_hook.is_linked())
785 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
793 void Action::suspend()
795 XBT_IN("(%p)", this);
796 if (suspended_ != 2) {
797 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
798 if (getModel()->getUpdateMechanism() == UM_LAZY){
799 heapRemove(getModel()->getActionHeap());
800 if (getModel()->getUpdateMechanism() == UM_LAZY && stateSet_ == getModel()->getRunningActionSet() && priority_ > 0){
801 //If we have a lazy model, we need to update the remaining value accordingly
802 updateRemainingLazy(surf_get_clock());
810 void Action::resume()
812 XBT_IN("(%p)", this);
813 if (suspended_ != 2) {
814 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority_);
816 if (getModel()->getUpdateMechanism() == UM_LAZY)
817 heapRemove(getModel()->getActionHeap());
822 bool Action::isSuspended()
824 return suspended_ == 1;
826 /* insert action on heap using a given key and a hat (heap_action_type)
827 * a hat can be of three types for communications:
829 * NORMAL = this is a normal heap entry stating the date to finish transmitting
830 * LATENCY = this is a heap entry to warn us when the latency is payed
831 * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached
833 void Action::heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat)
836 xbt_heap_push(heap, this, key);
839 void Action::heapRemove(xbt_heap_t heap)
842 if (indexHeap_ >= 0) {
843 xbt_heap_remove(heap, indexHeap_);
847 void Action::heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat)
850 if (indexHeap_ >= 0) {
851 xbt_heap_update(heap, indexHeap_, key);
853 xbt_heap_push(heap, this, key);
857 void Action::updateIndexHeap(int i) {
861 double Action::getRemains()
863 XBT_IN("(%p)", this);
864 /* update remains before return it */
865 if (getModel()->getUpdateMechanism() == UM_LAZY) /* update remains before return it */
866 updateRemainingLazy(surf_get_clock());
871 double Action::getRemainsNoUpdate()
876 //FIXME split code in the right places
877 void Action::updateRemainingLazy(double now)
881 if(getModel() == surf_network_model)
888 xbt_assert(stateSet_ == getModel()->getRunningActionSet(), "You're updating an action that is not running.");
889 xbt_assert(priority_ > 0, "You're updating an action that seems suspended.");
892 delta = now - lastUpdate_;
895 XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, remains_, lastUpdate_);
896 double_update(&remains_, lastValue_ * delta, sg_surf_precision*sg_maxmin_precision);
898 if (getModel() == surf_cpu_model_pm && TRACE_is_enabled()) {
899 simgrid::surf::Resource *cpu = static_cast<simgrid::surf::Resource*>(
900 lmm_constraint_id(lmm_get_cnst_from_var(getModel()->getMaxminSystem(), getVariable(), 0)));
901 TRACE_surf_host_set_utilization(cpu->cname(), getCategory(), lastValue_, lastUpdate_, now - lastUpdate_);
903 XBT_DEBUG("Updating action(%p): remains is now %f", this, remains_);
906 if(getModel() == surf_network_model)
908 if (maxDuration_ != NO_MAX_DURATION)
909 double_update(&maxDuration_, delta, sg_surf_precision);
911 //FIXME: duplicated code
912 if ((remains_ <= 0) &&
913 (lmm_get_variable_weight(getVariable()) > 0)) {
915 setState(Action::State::done);
916 heapRemove(getModel()->getActionHeap());
917 } else if (((maxDuration_ != NO_MAX_DURATION)
918 && (maxDuration_ <= 0))) {
920 setState(Action::State::done);
921 heapRemove(getModel()->getActionHeap());
926 lastValue_ = lmm_variable_getvalue(getVariable());