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"
21 XBT_LOG_NEW_CATEGORY(surf, "All SURF categories");
22 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf, "Logging specific to SURF (kernel)");
28 /* model_list_invoke contains only surf_host and surf_vm.
29 * The callback functions of cpu_model and network_model will be called from those of these host models. */
30 std::vector<surf_model_t> * all_existing_models = nullptr; /* to destroy models correctly */
31 xbt_dynar_t model_list_invoke = nullptr; /* to invoke callbacks */
33 simgrid::trace_mgr::future_evt_set *future_evt_set = nullptr;
34 xbt_dynar_t surf_path = nullptr;
35 std::vector<simgrid::s4u::Host*> host_that_restart;
36 xbt_dict_t watched_hosts_lib;
41 simgrid::xbt::signal<void(void)> surfExitCallbacks;
46 #include <simgrid/plugins/energy.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 {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 FILE *surf_fopen(const char *name, const char *mode)
134 char *path_elm = nullptr;
136 FILE *file = nullptr;
140 if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
141 return fopen(name, mode);
143 /* search relative files in the path */
144 xbt_dynar_foreach(surf_path, cpt, path_elm) {
145 buff = bprintf("%s" FILE_DELIM "%s", path_elm, name);
146 file = fopen(buff, mode);
158 static const char *disk_drives_letter_table[MAX_DRIVE] = {
159 "A:\\","B:\\","C:\\","D:\\","E:\\","F:\\","G:\\","H:\\","I:\\","J:\\","K:\\","L:\\","M:\\",
160 "N:\\","O:\\","P:\\","Q:\\","R:\\","S:\\","T:\\","U:\\","V:\\","W:\\","X:\\","Y:\\","Z:\\"
165 * Returns the initial path. On Windows the initial path is
166 * the current directory for the current process in the other
167 * case the function returns "./" that represents the current
168 * directory on Unix/Linux platforms.
171 const char *__surf_get_initial_path()
176 char current_directory[MAX_PATH + 1] = { 0 };
177 unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
178 char root[4] = { 0 };
183 strncpy(root, current_directory, 3);
185 for (i = 0; i < MAX_DRIVE; i++) {
186 if (toupper(root[0]) == disk_drives_letter_table[i][0])
187 return disk_drives_letter_table[i];
196 /* The __surf_is_absolute_file_path() returns 1 if
197 * file_path is a absolute file path, in the other
198 * case the function returns 0.
200 int __surf_is_absolute_file_path(const char *file_path)
203 WIN32_FIND_DATA wfd = { 0 };
204 HANDLE hFile = FindFirstFile(file_path, &wfd);
206 if (INVALID_HANDLE_VALUE == hFile)
212 return (file_path[0] == '/');
216 /** Displays the long description of all registered models, and quit */
217 void model_help(const char *category, s_surf_model_description_t * table)
219 printf("Long description of the %s models accepted by this simulator:\n", category);
220 for (int i = 0; table[i].name; i++)
221 printf(" %s: %s\n", table[i].name, table[i].description);
224 int find_model_description(s_surf_model_description_t * table,
228 char *name_list = nullptr;
230 for (i = 0; table[i].name; i++)
231 if (!strcmp(name, table[i].name)) {
235 xbt_die("No model is valid! This is a bug.");
236 name_list = xbt_strdup(table[0].name);
237 for (i = 1; table[i].name; i++) {
238 name_list = (char *) xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 3);
239 strncat(name_list, ", ", 2);
240 strncat(name_list, table[i].name, strlen(table[i].name));
242 xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
246 static inline void surf_storage_free(void *r)
248 delete static_cast<simgrid::surf::Storage*>(r);
251 void sg_version_check(int lib_version_major,int lib_version_minor,int lib_version_patch) {
252 if ((lib_version_major != SIMGRID_VERSION_MAJOR) || (lib_version_minor != SIMGRID_VERSION_MINOR)) {
254 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
255 "and then linked against SimGrid %d.%d.%d. Please fix this.\n",
256 lib_version_major,lib_version_minor,lib_version_patch,
257 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
260 if (lib_version_patch != SIMGRID_VERSION_PATCH) {
261 if(SIMGRID_VERSION_PATCH >= 90 || lib_version_patch >=90){
263 "FATAL ERROR: Your program was compiled with SimGrid version %d.%d.%d, "
264 "and then linked against SimGrid %d.%d.%d. \n"
265 "One of them is a development version, and should not be mixed with the stable release. Please fix this.\n",
266 lib_version_major,lib_version_minor,lib_version_patch,
267 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
271 "Warning: Your program was compiled with SimGrid version %d.%d.%d, "
272 "and then linked against SimGrid %d.%d.%d. Proceeding anyway.\n",
273 lib_version_major,lib_version_minor,lib_version_patch,
274 SIMGRID_VERSION_MAJOR,SIMGRID_VERSION_MINOR,SIMGRID_VERSION_PATCH);
278 void sg_version_get(int* ver_major, int* ver_minor, int* ver_patch)
280 *ver_major = SIMGRID_VERSION_MAJOR;
281 *ver_minor = SIMGRID_VERSION_MINOR;
282 *ver_patch = SIMGRID_VERSION_PATCH;
287 std::printf("This program was linked against %s (git: %s), found in %s.\n",
288 SIMGRID_VERSION_STRING, SIMGRID_GIT_VERSION, SIMGRID_INSTALL_PREFIX);
291 std::printf(" Model-checking support compiled in.\n");
293 std::printf(" Model-checking support disabled at compilation.\n");
297 std::printf(" NS3 support compiled in.\n");
299 std::printf(" NS3 support disabled at compilation.\n");
303 std::printf(" Jedule support compiled in.\n");
305 std::printf(" Jedule support disabled at compilation.\n");
309 std::printf(" Lua support compiled in.\n");
311 std::printf(" Lua support disabled at compilation.\n");
315 std::printf(" Mallocator support compiled in.\n");
317 std::printf(" Mallocator support disabled at compilation.\n");
320 std::printf("\nTo cite SimGrid in a publication, please use:\n"
321 " Henri Casanova, Arnaud Giersch, Arnaud Legrand, Martin Quinson, Frédéric Suter. \n"
322 " Versatile, Scalable, and Accurate Simulation of Distributed Applications and Platforms. \n"
323 " Journal of Parallel and Distributed Computing, Elsevier, 2014, 74 (10), pp.2899-2917.\n");
324 std::printf("The pdf file and a BibTeX entry for LaTeX users can be found at http://hal.inria.fr/hal-01017319\n");
327 void surf_init(int *argc, char **argv)
329 if (USER_HOST_LEVEL != -1) // Already initialized
332 XBT_DEBUG("Create all Libs");
333 USER_HOST_LEVEL = simgrid::s4u::Host::extension_create(nullptr);
335 storage_lib = xbt_lib_new();
336 storage_type_lib = xbt_lib_new();
337 file_lib = xbt_lib_new();
338 watched_hosts_lib = xbt_dict_new_homogeneous(nullptr);
340 XBT_DEBUG("Add SURF levels");
341 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib,surf_storage_free);
343 xbt_init(argc, argv);
344 if (!all_existing_models)
345 all_existing_models = new std::vector<simgrid::surf::Model*>();
346 if (!model_list_invoke)
347 model_list_invoke = xbt_dynar_new(sizeof(simgrid::surf::Model*), nullptr);
349 future_evt_set = new simgrid::trace_mgr::future_evt_set();
351 TRACE_add_start_function(TRACE_surf_alloc);
352 TRACE_add_end_function(TRACE_surf_release);
354 sg_config_init(argc, argv);
362 TRACE_end(); /* Just in case it was not called by the upper layer (or there is no upper layer) */
364 xbt_dynar_free(&surf_path);
367 xbt_lib_free(&storage_lib);
369 xbt_lib_free(&storage_type_lib);
370 xbt_lib_free(&file_lib);
371 xbt_dict_free(&watched_hosts_lib);
373 for (auto model : *all_existing_models)
375 delete all_existing_models;
376 xbt_dynar_free(&model_list_invoke);
378 simgrid::surf::surfExitCallbacks();
380 if (future_evt_set) {
381 delete future_evt_set;
382 future_evt_set = nullptr;
385 #if HAVE_THREAD_CONTEXTS
386 xbt_parmap_destroy(surf_parmap);
391 simgrid::s4u::Engine::shutdown();
393 NOW = 0; /* Just in case the user plans to restart the simulation afterward */
404 : maxminSystem_(nullptr)
406 readyActionSet_ = new ActionList();
407 runningActionSet_ = new ActionList();
408 failedActionSet_ = new ActionList();
409 doneActionSet_ = new ActionList();
411 modifiedSet_ = nullptr;
412 actionHeap_ = nullptr;
413 updateMechanism_ = UM_UNDEFINED;
414 selectiveUpdate_ = 0;
418 delete readyActionSet_;
419 delete runningActionSet_;
420 delete failedActionSet_;
421 delete doneActionSet_;
424 double Model::nextOccuringEvent(double now)
426 //FIXME: set the good function once and for all
427 if (updateMechanism_ == UM_LAZY)
428 return nextOccuringEventLazy(now);
429 else if (updateMechanism_ == UM_FULL)
430 return nextOccuringEventFull(now);
432 xbt_die("Invalid cpu update mechanism!");
435 double Model::nextOccuringEventLazy(double now)
437 XBT_DEBUG("Before share resources, the size of modified actions set is %zd", modifiedSet_->size());
438 lmm_solve(maxminSystem_);
439 XBT_DEBUG("After share resources, The size of modified actions set is %zd", modifiedSet_->size());
441 while(!modifiedSet_->empty()) {
442 Action *action = &(modifiedSet_->front());
443 modifiedSet_->pop_front();
444 int max_dur_flag = 0;
446 if (action->getStateSet() != runningActionSet_)
449 /* bogus priority, skip it */
450 if (action->getPriority() <= 0 || action->getHat()==LATENCY)
453 action->updateRemainingLazy(now);
456 double share = lmm_variable_getvalue(action->getVariable());
459 double time_to_completion;
460 if (action->getRemains() > 0) {
461 time_to_completion = action->getRemainsNoUpdate() / share;
463 time_to_completion = 0.0;
465 min = now + time_to_completion; // when the task will complete if nothing changes
468 if ((action->getMaxDuration() != NO_MAX_DURATION)
470 || action->getStartTime() +
471 action->getMaxDuration() < min)) {
472 min = action->getStartTime() +
473 action->getMaxDuration(); // when the task will complete anyway because of the deadline if any
478 XBT_DEBUG("Action(%p) corresponds to variable %d", action, action->getVariable()->id_int);
480 XBT_DEBUG("Action(%p) Start %f. May finish at %f (got a share of %f). Max_duration %f", action,
481 action->getStartTime(), min, share,
482 action->getMaxDuration());
485 action->heapUpdate(actionHeap_, min, max_dur_flag ? MAX_DURATION : NORMAL);
486 XBT_DEBUG("Insert at heap action(%p) min %f now %f", action, min,
488 } else DIE_IMPOSSIBLE;
491 //hereafter must have already the min value for this resource model
492 if (xbt_heap_size(actionHeap_) > 0) {
493 double min = xbt_heap_maxkey(actionHeap_) - now;
494 XBT_DEBUG("minimum with the HEAP %f", min);
497 XBT_DEBUG("The HEAP is empty, thus returning -1");
502 double Model::nextOccuringEventFull(double /*now*/) {
503 maxminSystem_->solve_fun(maxminSystem_);
506 for (auto it(getRunningActionSet()->begin()), itend(getRunningActionSet()->end()); it != itend ; ++it) {
507 Action *action = &*it;
508 double value = lmm_variable_getvalue(action->getVariable());
510 if (action->getRemains() > 0)
511 value = action->getRemainsNoUpdate() / value;
514 if (min < 0 || value < min) {
516 XBT_DEBUG("Updating min (value) with %p: %f", action, min);
519 if ((action->getMaxDuration() >= 0) && (min<0 || action->getMaxDuration() < min)) {
520 min = action->getMaxDuration();
521 XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
524 XBT_DEBUG("min value : %f", min);
529 void Model::updateActionsState(double now, double delta)
531 if (updateMechanism_ == UM_FULL)
532 updateActionsStateFull(now, delta);
533 else if (updateMechanism_ == UM_LAZY)
534 updateActionsStateLazy(now, delta);
536 xbt_die("Invalid cpu update mechanism!");
539 void Model::updateActionsStateLazy(double /*now*/, double /*delta*/)
544 void Model::updateActionsStateFull(double /*now*/, double /*delta*/)
559 Resource::Resource(Model* model, const char* name, lmm_constraint_t constraint)
560 : name_(name), model_(model), constraint_(constraint)
563 Resource::~Resource() = default;
565 bool Resource::isOn() const {
568 bool Resource::isOff() const {
572 void Resource::turnOn()
577 void Resource::turnOff()
582 Model* Resource::model() const
587 const char* Resource::cname() const
589 return name_.c_str();
592 bool Resource::operator==(const Resource &other) const {
593 return name_ == other.name_;
596 lmm_constraint_t Resource::constraint() const
608 const char *surf_action_state_names[6] = {
610 "SURF_ACTION_RUNNING",
611 "SURF_ACTION_FAILED",
613 "SURF_ACTION_TO_FREE",
614 "SURF_ACTION_NOT_IN_THE_SYSTEM"
617 /* added to manage the communication action's heap */
618 void surf_action_lmm_update_index_heap(void *action, int i) {
619 static_cast<simgrid::surf::Action*>(action)->updateIndexHeap(i);
625 Action::Action(simgrid::surf::Model* model, double cost, bool failed) : Action(model, cost, failed, nullptr)
629 Action::Action(simgrid::surf::Model* model, double cost, bool failed, lmm_variable_t var)
630 : remains_(cost), start_(surf_get_clock()), cost_(cost), model_(model), variable_(var)
633 stateSet_ = getModel()->getFailedActionSet();
635 stateSet_ = getModel()->getRunningActionSet();
637 stateSet_->push_back(*this);
644 void Action::finish() {
645 finishTime_ = surf_get_clock();
648 Action::State Action::getState()
650 if (stateSet_ == model_->getReadyActionSet())
651 return Action::State::ready;
652 if (stateSet_ == model_->getRunningActionSet())
653 return Action::State::running;
654 if (stateSet_ == model_->getFailedActionSet())
655 return Action::State::failed;
656 if (stateSet_ == model_->getDoneActionSet())
657 return Action::State::done;
658 return Action::State::not_in_the_system;
661 void Action::setState(Action::State state)
663 stateSet_->erase(stateSet_->iterator_to(*this));
665 case Action::State::ready:
666 stateSet_ = model_->getReadyActionSet();
668 case Action::State::running:
669 stateSet_ = model_->getRunningActionSet();
671 case Action::State::failed:
672 stateSet_ = model_->getFailedActionSet();
674 case Action::State::done:
675 stateSet_ = model_->getDoneActionSet();
682 stateSet_->push_back(*this);
685 double Action::getBound()
687 return (variable_) ? lmm_variable_getbound(variable_) : 0;
690 void Action::setBound(double bound)
692 XBT_IN("(%p,%g)", this, bound);
694 lmm_update_variable_bound(getModel()->getMaxminSystem(), variable_, bound);
696 if (getModel()->getUpdateMechanism() == UM_LAZY && getLastUpdate()!=surf_get_clock())
697 heapRemove(getModel()->getActionHeap());
701 double Action::getStartTime()
706 double Action::getFinishTime()
708 /* keep the function behavior, some models (cpu_ti) change the finish time before the action end */
709 return remains_ == 0 ? finishTime_ : -1;
712 void Action::setData(void* data)
717 void Action::setCategory(const char *category)
719 category_ = xbt_strdup(category);
726 void Action::setMaxDuration(double duration)
728 maxDuration_ = duration;
729 if (getModel()->getUpdateMechanism() == UM_LAZY) // remove action from the heap
730 heapRemove(getModel()->getActionHeap());
733 void Action::gapRemove() {}
735 void Action::setPriority(double priority)
737 XBT_IN("(%p,%g)", this, priority);
738 priority_ = priority;
739 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority);
741 if (getModel()->getUpdateMechanism() == UM_LAZY)
742 heapRemove(getModel()->getActionHeap());
746 void Action::cancel(){
747 setState(Action::State::failed);
748 if (getModel()->getUpdateMechanism() == UM_LAZY) {
749 if (action_lmm_hook.is_linked())
750 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
751 heapRemove(getModel()->getActionHeap());
758 if (action_hook.is_linked())
759 stateSet_->erase(stateSet_->iterator_to(*this));
761 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
762 if (getModel()->getUpdateMechanism() == UM_LAZY) {
763 /* remove from heap */
764 heapRemove(getModel()->getActionHeap());
765 if (action_lmm_hook.is_linked())
766 getModel()->getModifiedSet()->erase(getModel()->getModifiedSet()->iterator_to(*this));
774 void Action::suspend()
776 XBT_IN("(%p)", this);
777 if (suspended_ != 2) {
778 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
779 if (getModel()->getUpdateMechanism() == UM_LAZY){
780 heapRemove(getModel()->getActionHeap());
781 if (getModel()->getUpdateMechanism() == UM_LAZY && stateSet_ == getModel()->getRunningActionSet() && priority_ > 0){
782 //If we have a lazy model, we need to update the remaining value accordingly
783 updateRemainingLazy(surf_get_clock());
791 void Action::resume()
793 XBT_IN("(%p)", this);
794 if (suspended_ != 2) {
795 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), priority_);
797 if (getModel()->getUpdateMechanism() == UM_LAZY)
798 heapRemove(getModel()->getActionHeap());
803 bool Action::isSuspended()
805 return suspended_ == 1;
807 /* insert action on heap using a given key and a hat (heap_action_type)
808 * a hat can be of three types for communications:
810 * NORMAL = this is a normal heap entry stating the date to finish transmitting
811 * LATENCY = this is a heap entry to warn us when the latency is payed
812 * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached
814 void Action::heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat)
817 xbt_heap_push(heap, this, key);
820 void Action::heapRemove(xbt_heap_t heap)
823 if (indexHeap_ >= 0) {
824 xbt_heap_remove(heap, indexHeap_);
828 void Action::heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat)
831 if (indexHeap_ >= 0) {
832 xbt_heap_update(heap, indexHeap_, key);
834 xbt_heap_push(heap, this, key);
838 void Action::updateIndexHeap(int i) {
842 double Action::getRemains()
844 XBT_IN("(%p)", this);
845 /* update remains before return it */
846 if (getModel()->getUpdateMechanism() == UM_LAZY) /* update remains before return it */
847 updateRemainingLazy(surf_get_clock());
852 double Action::getRemainsNoUpdate()
857 //FIXME split code in the right places
858 void Action::updateRemainingLazy(double now)
862 if(getModel() == surf_network_model)
869 xbt_assert(stateSet_ == getModel()->getRunningActionSet(), "You're updating an action that is not running.");
870 xbt_assert(priority_ > 0, "You're updating an action that seems suspended.");
873 delta = now - lastUpdate_;
876 XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, remains_, lastUpdate_);
877 double_update(&remains_, lastValue_ * delta, sg_surf_precision*sg_maxmin_precision);
879 if (getModel() == surf_cpu_model_pm && TRACE_is_enabled()) {
880 simgrid::surf::Resource *cpu = static_cast<simgrid::surf::Resource*>(
881 lmm_constraint_id(lmm_get_cnst_from_var(getModel()->getMaxminSystem(), getVariable(), 0)));
882 TRACE_surf_host_set_utilization(cpu->cname(), getCategory(), lastValue_, lastUpdate_, now - lastUpdate_);
884 XBT_DEBUG("Updating action(%p): remains is now %f", this, remains_);
887 if(getModel() == surf_network_model)
889 if (maxDuration_ != NO_MAX_DURATION)
890 double_update(&maxDuration_, delta, sg_surf_precision);
892 //FIXME: duplicated code
893 if ((remains_ <= 0) &&
894 (lmm_get_variable_weight(getVariable()) > 0)) {
896 setState(Action::State::done);
897 heapRemove(getModel()->getActionHeap());
898 } else if (((maxDuration_ != NO_MAX_DURATION)
899 && (maxDuration_ <= 0))) {
901 setState(Action::State::done);
902 heapRemove(getModel()->getActionHeap());
907 lastValue_ = lmm_variable_getvalue(getVariable());