1 /* Copyright (c) 2004-2016. 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. */
15 #include <boost/function.hpp>
16 #include <boost/intrusive/list.hpp>
18 #include <xbt/signal.hpp>
21 #include "surf/surf_routing.h"
22 #include "simgrid/platf_interface.h"
23 #include "surf/surf.h"
24 #include "src/surf/surf_private.h"
25 #include "src/internal_config.h"
27 #define NO_MAX_DURATION -1.0
33 /* user-visible parameters */
34 extern XBT_PRIVATE double sg_tcp_gamma;
35 extern XBT_PRIVATE double sg_sender_gap;
36 extern XBT_PRIVATE double sg_latency_factor;
37 extern XBT_PRIVATE double sg_bandwidth_factor;
38 extern XBT_PRIVATE double sg_weight_S_parameter;
39 extern XBT_PRIVATE int sg_network_crosstraffic;
40 extern XBT_PRIVATE xbt_dynar_t surf_path;
43 XBT_PUBLIC(double) surf_get_clock(void);
46 extern XBT_PRIVATE double sg_sender_gap;
51 extern XBT_PRIVATE simgrid::xbt::signal<void(void)> surfExitCallbacks;
56 int XBT_PRIVATE __surf_is_absolute_file_path(const char *file_path);
62 enum heap_action_type{
72 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
73 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
74 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_host_speed;
75 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_avail;
76 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_bw;
77 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_lat;
83 XBT_PRIVATE void surf_action_lmm_update_index_heap(void *action, int i);
85 XBT_PUBLIC_DATA(xbt_dynar_t) all_existing_models;
90 /** @ingroup SURF_interface
91 * @brief SURF action interface class
92 * @details An action is an event generated by a resource (e.g.: a communication for the network)
94 XBT_PUBLIC_CLASS Action {
96 boost::intrusive::list_member_hook<> action_hook;
97 boost::intrusive::list_member_hook<> action_lmm_hook;
98 typedef boost::intrusive::member_hook<
99 Action, boost::intrusive::list_member_hook<>, &Action::action_hook> ActionOptions;
100 typedef boost::intrusive::list<Action, ActionOptions> ActionList;
103 * @brief Common initializations for the constructors
105 void initialize(simgrid::surf::Model *model, double cost, bool failed,
106 lmm_variable_t var = NULL);
110 * @brief Action constructor
112 * @param model The Model associated to this Action
113 * @param cost The cost of the Action
114 * @param failed If the action is impossible (e.g.: execute something on a switched off host)
116 Action(simgrid::surf::Model *model, double cost, bool failed);
119 * @brief Action constructor
121 * @param model The Model associated to this Action
122 * @param cost The cost of the Action
123 * @param failed If the action is impossible (e.g.: execute something on a switched off host)
124 * @param var The lmm variable associated to this Action if it is part of a LMM component
126 Action(simgrid::surf::Model *model, double cost, bool failed, lmm_variable_t var);
128 /** @brief Destructor */
131 /** @brief Mark that the action is now finished */
134 /** @brief Get the [state](\ref e_surf_action_state_t) of the current Action */
135 e_surf_action_state_t getState(); /**< get the state*/
136 /** @brief Set the [state](\ref e_surf_action_state_t) of the current Action */
137 virtual void setState(e_surf_action_state_t state);
139 /** @brief Get the bound of the current Action */
141 /** @brief Set the bound of the current Action */
142 void setBound(double bound);
144 /** @brief Get the start time of the current action */
145 double getStartTime();
146 /** @brief Get the finish time of the current action */
147 double getFinishTime();
149 /** @brief Get the user data associated to the current action */
150 void *getData() {return p_data;}
151 /** @brief Set the user data associated to the current action */
152 void setData(void* data);
154 /** @brief Get the cost of the current action */
155 double getCost() {return m_cost;}
156 /** @brief Set the cost of the current action */
157 void setCost(double cost) {m_cost = cost;}
159 /** @brief Update the maximum duration of the current action
160 * @param delta Amount to remove from the MaxDuration */
161 void updateMaxDuration(double delta) {double_update(&m_maxDuration, delta,sg_surf_precision);}
163 /** @brief Update the remaining time of the current action
164 * @param delta Amount to remove from the remaining time */
165 void updateRemains(double delta) {double_update(&m_remains, delta, sg_maxmin_precision*sg_surf_precision);}
167 /** @brief Set the remaining time of the current action */
168 void setRemains(double value) {m_remains = value;}
169 /** @brief Get the remaining time of the current action after updating the resource */
170 virtual double getRemains();
171 /** @brief Get the remaining time of the current action without updating the resource */
172 double getRemainsNoUpdate();
174 /** @brief Set the finish time of the current action */
175 void setFinishTime(double value) {m_finish = value;}
177 /**@brief Add a reference to the current action (refcounting) */
179 /** @brief Unref that action (and destroy it if refcount reaches 0)
180 * @return true if the action was destroyed and false if someone still has references on it
184 /** @brief Cancel the current Action if running */
185 virtual void cancel();
187 /** @brief Suspend the current Action */
188 virtual void suspend();
190 /** @brief Resume the current Action */
191 virtual void resume();
193 /** @brief Returns true if the current action is running */
194 virtual bool isSuspended();
196 /** @brief Get the maximum duration of the current action */
197 double getMaxDuration() {return m_maxDuration;}
198 /** @brief Set the maximum duration of the current Action */
199 virtual void setMaxDuration(double duration);
201 /** @brief Get the tracing category associated to the current action */
202 char *getCategory() {return p_category;}
203 /** @brief Set the tracing category of the current Action */
204 void setCategory(const char *category);
206 /** @brief Get the priority of the current Action */
207 double getPriority() {return m_priority;};
208 /** @brief Set the priority of the current Action */
209 virtual void setPriority(double priority);
211 /** @brief Get the state set in which the action is */
212 ActionList* getStateSet() {return p_stateSet;};
214 s_xbt_swag_hookup_t p_stateHookup = {NULL,NULL};
216 simgrid::surf::Model *getModel() {return p_model;}
219 ActionList* p_stateSet;
220 double m_priority = 1.0; /**< priority (1.0 by default) */
222 double m_remains; /**< How much of that cost remains to be done in the currently running task */
223 double m_maxDuration = NO_MAX_DURATION; /*< max_duration (may fluctuate until the task is completed) */
224 double m_finish = -1; /**< finish time : this is modified during the run and fluctuates until the task is completed */
227 double m_start; /**< start time */
228 char *p_category = NULL; /**< tracing category for categorized resource utilization monitoring */
230 #ifdef HAVE_LATENCY_BOUND_TRACKING
231 int m_latencyLimited; /**< Set to 1 if is limited by latency, 0 otherwise */
234 simgrid::surf::Model *p_model;
235 void *p_data = NULL; /**< for your convenience */
239 virtual void updateRemainingLazy(double now);
240 void heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat);
241 void heapRemove(xbt_heap_t heap);
242 void heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat);
243 void updateIndexHeap(int i);
244 lmm_variable_t getVariable() {return p_variable;}
245 double getLastUpdate() {return m_lastUpdate;}
246 void refreshLastUpdate() {m_lastUpdate = surf_get_clock();}
247 enum heap_action_type getHat() {return m_hat;}
248 bool is_linked() {return action_lmm_hook.is_linked();}
252 lmm_variable_t p_variable;
253 double m_lastValue = 0;
254 double m_lastUpdate = 0;
257 enum heap_action_type m_hat = NOTSET;
260 typedef Action::ActionList ActionList;
262 typedef boost::intrusive::member_hook<
263 Action, boost::intrusive::list_member_hook<>, &Action::action_lmm_hook> ActionLmmOptions;
264 typedef boost::intrusive::list<Action, ActionLmmOptions> ActionLmmList;
265 typedef ActionLmmList* ActionLmmListPtr;
271 /** @ingroup SURF_interface
272 * @brief SURF model interface class
273 * @details A model is an object which handle the interactions between its Resources and its Actions
275 XBT_PUBLIC_CLASS Model {
280 virtual void addTraces() =0;
282 /** @brief Get the set of [actions](@ref Action) in *ready* state */
283 virtual ActionList* getReadyActionSet() {return p_readyActionSet;}
285 /** @brief Get the set of [actions](@ref Action) in *running* state */
286 virtual ActionList* getRunningActionSet() {return p_runningActionSet;}
288 /** @brief Get the set of [actions](@ref Action) in *failed* state */
289 virtual ActionList* getFailedActionSet() {return p_failedActionSet;}
291 /** @brief Get the set of [actions](@ref Action) in *done* state */
292 virtual ActionList* getDoneActionSet() {return p_doneActionSet;}
294 /** @brief Get the set of modified [actions](@ref Action) */
295 virtual ActionLmmListPtr getModifiedSet() {return p_modifiedSet;}
297 /** @brief Get the maxmin system of the current Model */
298 lmm_system_t getMaxminSystem() {return p_maxminSystem;}
301 * @brief Get the update mechanism of the current Model
304 e_UM_t getUpdateMechanism() {return p_updateMechanism;}
306 /** @brief Get Action heap */
307 xbt_heap_t getActionHeap() {return p_actionHeap;}
310 * @brief Share the resources between the actions
312 * @param now The current time of the simulation
313 * @return The delta of time till the next action will finish
315 virtual double next_occuring_event(double now);
316 virtual double next_occuring_event_lazy(double now);
317 virtual double next_occuring_event_full(double now);
318 double shareResourcesMaxMin(ActionList* running_actions,
319 lmm_system_t sys, void (*solve) (lmm_system_t));
322 * @brief Update action to the current time
324 * @param now The current time of the simulation
325 * @param delta The delta of time since the last update
327 virtual void updateActionsState(double now, double delta);
328 virtual void updateActionsStateLazy(double now, double delta);
329 virtual void updateActionsStateFull(double now, double delta);
331 /** @brief Returns whether this model have an idempotent shareResource()
333 * The only model that is not is NS3: computing the next timestamp moves the model up to that point,
334 * so we need to call it only when the next timestamp of other sources is computed.
336 virtual bool next_occuring_event_isIdempotent()=0;
339 ActionLmmListPtr p_modifiedSet;
340 lmm_system_t p_maxminSystem = nullptr;
341 e_UM_t p_updateMechanism = UM_UNDEFINED;
342 int m_selectiveUpdate;
343 xbt_heap_t p_actionHeap;
346 ActionList* p_readyActionSet; /**< Actions in state SURF_ACTION_READY */
347 ActionList* p_runningActionSet; /**< Actions in state SURF_ACTION_RUNNING */
348 ActionList* p_failedActionSet; /**< Actions in state SURF_ACTION_FAILED */
349 ActionList* p_doneActionSet; /**< Actions in state SURF_ACTION_DONE */
359 /** @ingroup SURF_interface
360 * @brief Resource which have a metric handled by a maxmin system
363 double peak; /**< The peak of the metric, ie its max value */
364 double scale; /**< Current availability of the metric according to the traces, in [0,1] */
365 tmgr_trace_iterator_t event; /**< The associated trace event associated to the metric */
371 /** @ingroup SURF_interface
372 * @brief SURF resource interface class
373 * @details A resource represent an element of a component (e.g.: a link for the network)
375 XBT_PUBLIC_CLASS Resource {
378 * @brief Constructor of non-LMM Resources
380 * @param model Model associated to this Resource
381 * @param name The name of the Resource
383 Resource(Model *model, const char *name);
386 * @brief Constructor of LMM Resources
388 * @param model Model associated to this Resource
389 * @param name The name of the Resource
390 * @param constraint The lmm constraint associated to this Resource if it is part of a LMM component
392 Resource(Model *model, const char *name, lmm_constraint_t constraint);
394 Resource(Model *model, const char *name, lmm_constraint_t constraint, int initiallyOn);
397 * @brief Resource constructor
399 * @param model Model associated to this Resource
400 * @param name The name of the Resource
401 * @param initiallyOn the initial state of the Resource
403 Resource(Model *model, const char *name, int initiallyOn);
407 /** @brief Get the Model of the current Resource */
410 /** @brief Get the name of the current Resource */
411 const char *getName();
414 * @brief Update the state of the current Resource
417 * @param event_type [TODO]
418 * @param value [TODO]
420 virtual void updateState(tmgr_trace_iterator_t event_type, double value)=0;
422 /** @brief Check if the current Resource is used (if it currently serves an action) */
423 virtual bool isUsed()=0;
425 /** @brief Check if the current Resource is active */
427 /** @brief Check if the current Resource is shut down */
428 virtual bool isOff();
429 /** @brief Turn on the current Resource */
430 virtual void turnOn();
431 /** @brief Turn off the current Resource */
432 virtual void turnOff();
440 /** @brief Get the lmm constraint associated to this Resource if it is part of a LMM component */
441 lmm_constraint_t getConstraint();
443 lmm_constraint_t p_constraint = nullptr;
449 #endif /* SURF_MODEL_H_ */