-/* Copyright (c) 2004-2016. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2004-2017. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#ifndef SURF_MODEL_H_
#define SURF_MODEL_H_
-#include <xbt.h>
-#include <string>
-#include <vector>
-#include <memory>
-#include <utility>
-
-#include <boost/intrusive/list.hpp>
+#include "xbt/signal.hpp"
+#include "xbt/utility.hpp"
-#include <xbt/signal.hpp>
+#include "src/surf/surf_private.hpp"
+#include "surf/surf.hpp"
+#include "xbt/str.h"
-#include "xbt/lib.h"
-#include "surf/surf_routing.h"
-#include "surf/surf.h"
-#include "src/surf/surf_private.h"
-#include "src/internal_config.h"
+#include <boost/heap/pairing_heap.hpp>
+#include <boost/intrusive/list.hpp>
+#include <boost/optional.hpp>
+#include <cmath>
+#include <set>
+#include <string>
+#include <unordered_map>
#define NO_MAX_DURATION -1.0
*********/
/* user-visible parameters */
+XBT_PUBLIC_DATA(double) sg_maxmin_precision;
+XBT_PUBLIC_DATA(double) sg_surf_precision;
+XBT_PUBLIC_DATA(int) sg_concurrency_limit;
+
extern XBT_PRIVATE double sg_tcp_gamma;
-extern XBT_PRIVATE double sg_sender_gap;
extern XBT_PRIVATE double sg_latency_factor;
extern XBT_PRIVATE double sg_bandwidth_factor;
extern XBT_PRIVATE double sg_weight_S_parameter;
extern XBT_PRIVATE int sg_network_crosstraffic;
-extern XBT_PRIVATE xbt_dynar_t surf_path;
-
-extern "C" {
-XBT_PUBLIC(double) surf_get_clock(void);
+extern XBT_PRIVATE std::vector<std::string> surf_path;
+extern XBT_PRIVATE std::unordered_map<std::string, tmgr_trace_t> traces_set_list;
+extern XBT_PRIVATE std::set<std::string> watched_hosts;
+
+static inline void double_update(double* variable, double value, double precision)
+{
+ // printf("Updating %g -= %g +- %g\n",*variable,value,precision);
+ // xbt_assert(value==0 || value>precision);
+ // Check that precision is higher than the machine-dependent size of the mantissa. If not, brutal rounding may
+ // happen, and the precision mechanism is not active...
+ // xbt_assert(*variable< (2<<DBL_MANT_DIG)*precision && FLT_RADIX==2);
+ *variable -= value;
+ if (*variable < precision)
+ *variable = 0.0;
}
-extern XBT_PRIVATE double sg_sender_gap;
-
-namespace simgrid {
-namespace surf {
-
-extern XBT_PRIVATE simgrid::xbt::signal<void(void)> surfExitCallbacks;
-
-}
+static inline int double_positive(double value, double precision)
+{
+ return (value > precision);
}
-int XBT_PRIVATE __surf_is_absolute_file_path(const char *file_path);
-
-static inline char* sg_storage_name(sg_storage_t storage) {
- return storage->key;
+static inline int double_equals(double value1, double value2, double precision)
+{
+ return (fabs(value1 - value2) < precision);
}
-/***********
- * Classes *
- ***********/
-
-enum heap_action_type{
- LATENCY = 100,
- MAX_DURATION,
- NORMAL,
- NOTSET
-};
+extern "C" {
+XBT_PUBLIC(double) surf_get_clock();
+}
+/** \ingroup SURF_simulation
+ * \brief List of hosts that have just restarted and whose autorestart process should be restarted.
+ */
+XBT_PUBLIC_DATA(std::vector<sg_host_t>) host_that_restart;
-/*********
- * Trace *
- *********/
-/* For the trace and trace:connect tag (store their content till the end of the parsing) */
-XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
+int XBT_PRIVATE __surf_is_absolute_file_path(const char *file_path);
/**********
* Action *
**********/
-XBT_PRIVATE void surf_action_lmm_update_index_heap(void *action, int i);
-
-XBT_PUBLIC_DATA(xbt_dynar_t) all_existing_models;
+/** \ingroup SURF_models
+ * \brief List of initialized models
+ */
+XBT_PUBLIC_DATA(std::vector<surf_model_t>*) all_existing_models;
namespace simgrid {
namespace surf {
+typedef std::pair<double, simgrid::surf::Action*> heap_element_type;
+typedef boost::heap::pairing_heap<heap_element_type, boost::heap::constant_time_size<false>, boost::heap::stable<true>,
+ boost::heap::compare<simgrid::xbt::HeapComparator<heap_element_type>>>
+ heap_type;
+
/** @ingroup SURF_interface
* @brief SURF action interface class
* @details An action is an event generated by a resource (e.g.: a communication for the network)
*/
XBT_PUBLIC_CLASS Action {
public:
- boost::intrusive::list_member_hook<> action_hook;
- boost::intrusive::list_member_hook<> action_lmm_hook;
- typedef boost::intrusive::member_hook<
- Action, boost::intrusive::list_member_hook<>, &Action::action_hook> ActionOptions;
+ boost::intrusive::list_member_hook<> modifiedSetHook_; /* Used by the lazy update to list the actions to track */
+ bool isLinkedModifiedSet() const { return modifiedSetHook_.is_linked(); }
+
+ typedef boost::intrusive::member_hook<Action, boost::intrusive::list_member_hook<>, &Action::modifiedSetHook_>
+ ActionLmmOptions;
+ typedef boost::intrusive::list<Action, ActionLmmOptions> ActionLmmList;
+
+ boost::intrusive::list_member_hook<> stateSetHook_;
+ typedef boost::intrusive::member_hook<Action, boost::intrusive::list_member_hook<>, &Action::stateSetHook_>
+ ActionOptions;
typedef boost::intrusive::list<Action, ActionOptions> ActionList;
enum class State {
not_in_the_system /**< Not in the system anymore. Why did you ask ? */
};
-private:
- /**
- * @brief Common initializations for the constructors
- */
- void initialize(simgrid::surf::Model *model, double cost, bool failed,
- lmm_variable_t var = NULL);
+ enum class SuspendStates {
+ not_suspended = 0, /**< Action currently not suspended **/
+ suspended,
+ sleeping
+ };
+
+ enum class Type { LATENCY = 100, MAX_DURATION, NORMAL, NOTSET };
-public:
/**
* @brief Action constructor
*
* @param cost The cost of the Action
* @param failed If the action is impossible (e.g.: execute something on a switched off host)
*/
- Action(simgrid::surf::Model *model, double cost, bool failed);
+ Action(simgrid::surf::Model* model, double cost, bool failed);
/**
* @brief Action constructor
* @param failed If the action is impossible (e.g.: execute something on a switched off host)
* @param var The lmm variable associated to this Action if it is part of a LMM component
*/
- Action(simgrid::surf::Model *model, double cost, bool failed, lmm_variable_t var);
+ Action(simgrid::surf::Model * model, double cost, bool failed, kernel::lmm::Variable* var);
- /** @brief Destructor */
virtual ~Action();
- /** @brief Mark that the action is now finished */
- void finish();
+ /**
+ * @brief Mark that the action is now finished
+ *
+ * @param state the new [state](\ref simgrid::surf::Action::State) of the current Action
+ */
+ void finish(Action::State state);
/** @brief Get the [state](\ref simgrid::surf::Action::State) of the current Action */
- Action::State getState(); /**< get the state*/
+ Action::State getState() const; /**< get the state*/
/** @brief Set the [state](\ref simgrid::surf::Action::State) of the current Action */
virtual void setState(Action::State state);
/** @brief Get the bound of the current Action */
- double getBound();
+ double getBound() const;
/** @brief Set the bound of the current Action */
void setBound(double bound);
/** @brief Get the start time of the current action */
- double getStartTime();
+ double getStartTime() const { return start_; }
/** @brief Get the finish time of the current action */
- double getFinishTime();
+ double getFinishTime() const { return finishTime_; }
/** @brief Get the user data associated to the current action */
- void *getData() {return data_;}
+ void* getData() const { return data_; }
/** @brief Set the user data associated to the current action */
- void setData(void* data);
+ void setData(void* data) { data_ = data; }
/** @brief Get the cost of the current action */
- double getCost() {return cost_;}
+ double getCost() const { return cost_; }
/** @brief Set the cost of the current action */
void setCost(double cost) {cost_ = cost;}
/** @brief Get the remaining time of the current action after updating the resource */
virtual double getRemains();
/** @brief Get the remaining time of the current action without updating the resource */
- double getRemainsNoUpdate();
+ double getRemainsNoUpdate() const { return remains_; }
/** @brief Set the finish time of the current action */
void setFinishTime(double value) {finishTime_ = value;}
virtual bool isSuspended();
/** @brief Get the maximum duration of the current action */
- double getMaxDuration() {return maxDuration_;}
+ double getMaxDuration() const { return maxDuration_; }
/** @brief Set the maximum duration of the current Action */
virtual void setMaxDuration(double duration);
/** @brief Get the tracing category associated to the current action */
- char *getCategory() {return category_;}
+ char* getCategory() const { return category_; }
/** @brief Set the tracing category of the current Action */
void setCategory(const char *category);
/** @brief Get the priority of the current Action */
- double getPriority() {return priority_;};
+ double getPriority() const { return sharingWeight_; };
/** @brief Set the priority of the current Action */
- virtual void setPriority(double priority);
+ virtual void setSharingWeight(double priority);
+ void setSharingWeightNoUpdate(double weight) { sharingWeight_ = weight; }
/** @brief Get the state set in which the action is */
- ActionList* getStateSet() {return stateSet_;};
-
- s_xbt_swag_hookup_t stateHookup_ = {NULL,NULL};
+ ActionList* getStateSet() const { return stateSet_; };
- simgrid::surf::Model *getModel() {return model_;}
+ simgrid::surf::Model* getModel() const { return model_; }
protected:
ActionList* stateSet_;
- double priority_ = 1.0; /**< priority (1.0 by default) */
int refcount_ = 1;
- double remains_; /**< How much of that cost remains to be done in the currently running task */
- double maxDuration_ = NO_MAX_DURATION; /*< max_duration (may fluctuate until the task is completed) */
- double finishTime_ = -1; /**< finish time : this is modified during the run and fluctuates until the task is completed */
private:
+ double sharingWeight_ = 1.0; /**< priority (1.0 by default) */
+ double maxDuration_ = NO_MAX_DURATION; /*< max_duration (may fluctuate until the task is completed) */
+ double remains_; /**< How much of that cost remains to be done in the currently running task */
double start_; /**< start time */
- char *category_ = NULL; /**< tracing category for categorized resource utilization monitoring */
+ char *category_ = nullptr; /**< tracing category for categorized resource utilization monitoring */
+ double finishTime_ =
+ -1; /**< finish time : this is modified during the run and fluctuates until the task is completed */
double cost_;
simgrid::surf::Model *model_;
- void *data_ = NULL; /**< for your convenience */
+ void *data_ = nullptr; /**< for your convenience */
/* LMM */
+ double lastUpdate_ = 0;
+ double lastValue_ = 0;
+ kernel::lmm::Variable* variable_ = nullptr;
+ Action::Type type_ = Action::Type::NOTSET;
+ boost::optional<heap_type::handle_type> heapHandle_ = boost::none;
+
public:
- virtual void updateRemainingLazy(double now);
- void heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat);
- void heapRemove(xbt_heap_t heap);
- void heapUpdate(xbt_heap_t heap, double key, enum heap_action_type hat);
- void updateIndexHeap(int i);
- lmm_variable_t getVariable() {return variable_;}
- double getLastUpdate() {return lastUpdate_;}
+ virtual void updateRemainingLazy(double now) { THROW_IMPOSSIBLE; };
+ void heapInsert(heap_type & heap, double key, Action::Type hat);
+ void heapRemove(heap_type& heap);
+ void heapUpdate(heap_type & heap, double key, Action::Type hat);
+ void clearHeapHandle() { heapHandle_ = boost::none; }
+ kernel::lmm::Variable* getVariable() const { return variable_; }
+ void setVariable(kernel::lmm::Variable * var) { variable_ = var; }
+ double getLastUpdate() const { return lastUpdate_; }
void refreshLastUpdate() {lastUpdate_ = surf_get_clock();}
- enum heap_action_type getHat() {return hat_;}
- bool is_linked() {return action_lmm_hook.is_linked();}
- void gapRemove();
+ double getLastValue() const { return lastValue_; }
+ void setLastValue(double val) { lastValue_ = val; }
+ Action::Type getType() const { return type_; }
protected:
- lmm_variable_t variable_ = nullptr;
- double lastValue_ = 0;
- double lastUpdate_ = 0;
- int suspended_ = 0;
- int indexHeap_;
- enum heap_action_type hat_ = NOTSET;
+ Action::SuspendStates suspended_ = Action::SuspendStates::not_suspended;
};
typedef Action::ActionList ActionList;
-
-typedef boost::intrusive::member_hook<
- Action, boost::intrusive::list_member_hook<>, &Action::action_lmm_hook> ActionLmmOptions;
-typedef boost::intrusive::list<Action, ActionLmmOptions> ActionLmmList;
-typedef ActionLmmList* ActionLmmListPtr;
+typedef Action::ActionLmmList ActionLmmList;
+typedef Action::ActionLmmList* ActionLmmListPtr;
/*********
* Model *
virtual ~Model();
/** @brief Get the set of [actions](@ref Action) in *ready* state */
- virtual ActionList* getReadyActionSet() {return readyActionSet_;}
+ virtual ActionList* getReadyActionSet() const { return readyActionSet_; }
/** @brief Get the set of [actions](@ref Action) in *running* state */
- virtual ActionList* getRunningActionSet() {return runningActionSet_;}
+ virtual ActionList* getRunningActionSet() const { return runningActionSet_; }
/** @brief Get the set of [actions](@ref Action) in *failed* state */
- virtual ActionList* getFailedActionSet() {return failedActionSet_;}
+ virtual ActionList* getFailedActionSet() const { return failedActionSet_; }
/** @brief Get the set of [actions](@ref Action) in *done* state */
- virtual ActionList* getDoneActionSet() {return doneActionSet_;}
+ virtual ActionList* getDoneActionSet() const { return doneActionSet_; }
/** @brief Get the set of modified [actions](@ref Action) */
- virtual ActionLmmListPtr getModifiedSet() {return modifiedSet_;}
+ virtual ActionLmmListPtr getModifiedSet() const { return modifiedSet_; }
/** @brief Get the maxmin system of the current Model */
- lmm_system_t getMaxminSystem() {return maxminSystem_;}
+ lmm_system_t getMaxminSystem() const { return maxminSystem_; }
/**
* @brief Get the update mechanism of the current Model
* @see e_UM_t
*/
- e_UM_t getUpdateMechanism() {return updateMechanism_;}
+ e_UM_t getUpdateMechanism() const { return updateMechanism_; }
+ void setUpdateMechanism(e_UM_t mechanism) { updateMechanism_ = mechanism; }
/** @brief Get Action heap */
- xbt_heap_t getActionHeap() {return actionHeap_;}
+ heap_type& getActionHeap() { return actionHeap_; }
+
+ double actionHeapTopDate() const { return actionHeap_.top().first; }
+ Action* actionHeapPop();
+ bool actionHeapIsEmpty() const { return actionHeap_.empty(); }
/**
* @brief Share the resources between the actions
* @param now The current time of the simulation
* @return The delta of time till the next action will finish
*/
- virtual double next_occuring_event(double now);
- virtual double next_occuring_event_lazy(double now);
- virtual double next_occuring_event_full(double now);
- double shareResourcesMaxMin(ActionList* running_actions,
- lmm_system_t sys, void (*solve) (lmm_system_t));
+ virtual double nextOccuringEvent(double now);
+ virtual double nextOccuringEventLazy(double now);
+ virtual double nextOccuringEventFull(double now);
/**
* @brief Update action to the current time
* The only model that is not is NS3: computing the next timestamp moves the model up to that point,
* so we need to call it only when the next timestamp of other sources is computed.
*/
- virtual bool next_occuring_event_isIdempotent()=0;
+ virtual bool nextOccuringEventIsIdempotent() { return true;}
protected:
ActionLmmListPtr modifiedSet_;
lmm_system_t maxminSystem_ = nullptr;
- e_UM_t updateMechanism_ = UM_UNDEFINED;
- int selectiveUpdate_;
- xbt_heap_t actionHeap_;
+ bool selectiveUpdate_;
private:
+ e_UM_t updateMechanism_ = UM_UNDEFINED;
ActionList* readyActionSet_; /**< Actions in state SURF_ACTION_READY */
ActionList* runningActionSet_; /**< Actions in state SURF_ACTION_RUNNING */
ActionList* failedActionSet_; /**< Actions in state SURF_ACTION_FAILED */
ActionList* doneActionSet_; /**< Actions in state SURF_ACTION_DONE */
+ heap_type actionHeap_;
};
}
* Resource *
************/
-/** @ingroup SURF_interface
- * @brief Resource which have a metric handled by a maxmin system
- */
-typedef struct {
- double peak; /**< The peak of the metric, ie its max value */
- double scale; /**< Current availability of the metric according to the traces, in [0,1] */
- tmgr_trace_iterator_t event; /**< The associated trace event associated to the metric */
-} s_surf_metric_t;
-
-namespace simgrid {
-namespace surf {
-
-/** @ingroup SURF_interface
- * @brief SURF resource interface class
- * @details This is the ancestor class of every resources in SimGrid, such as links, CPU or storage
- */
-XBT_PUBLIC_CLASS Resource {
-public:
- /**
- * @brief Constructor of non-LMM Resources
- *
- * @param model Model associated to this Resource
- * @param name The name of the Resource
- */
- Resource(Model *model, const char *name);
-
- /**
- * @brief Constructor of LMM Resources
- *
- * @param model Model associated to this Resource
- * @param name The name of the Resource
- * @param constraint The lmm constraint associated to this Resource if it is part of a LMM component
- */
- Resource(Model *model, const char *name, lmm_constraint_t constraint);
-
- virtual ~Resource();
-
- /** @brief Get the Model of the current Resource */
- Model *getModel() const;
-
- /** @brief Get the name of the current Resource */
- const char *getName() const;
-
- bool operator==(const Resource &other) const;
-
- /**
- * @brief Apply an event of external load event to that resource
- *
- * @param event What happened
- * @param value [TODO]
- */
- virtual void apply_event(tmgr_trace_iterator_t event, double value)=0;
-
- /** @brief Check if the current Resource is used (if it currently serves an action) */
- virtual bool isUsed()=0;
-
- /** @brief Check if the current Resource is active */
- virtual bool isOn() const;
- /** @brief Check if the current Resource is shut down */
- virtual bool isOff() const;
- /** @brief Turn on the current Resource */
- virtual void turnOn();
- /** @brief Turn off the current Resource */
- virtual void turnOff();
-
-private:
- const char *name_;
- Model *model_;
- bool isOn_ = true;
-
-public: /* LMM */
- /** @brief Get the lmm constraint associated to this Resource if it is part of a LMM component (or null if none) */
- lmm_constraint_t getConstraint() const;
-protected:
- lmm_constraint_t constraint_ = nullptr;
-};
-
-}
-}
-
-namespace std {
- template <>
- struct hash<simgrid::surf::Resource>
- {
- std::size_t operator()(const simgrid::surf::Resource& r) const
- {
- return (std::size_t) xbt_str_hash(r.getName());
- }
- };
-}
#endif /* SURF_MODEL_H_ */
