X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/096bd885787fc858262059ac8ad284ca3aa47397..8de466d0f03f18b22c6c36170b509d48a39fcd52:/src/surf/surf_interface.hpp diff --git a/src/surf/surf_interface.hpp b/src/surf/surf_interface.hpp index a01316787d..0b5a60f25f 100644 --- a/src/surf/surf_interface.hpp +++ b/src/surf/surf_interface.hpp @@ -1,4 +1,4 @@ -/* Copyright (c) 2004-2016. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2004-2018. 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. */ @@ -6,440 +6,74 @@ #ifndef SURF_MODEL_H_ #define SURF_MODEL_H_ -#include -#include +#include "xbt/signal.hpp" +#include "xbt/utility.hpp" -#include -#include -#include +#include "src/surf/surf_private.hpp" +#include "surf/surf.hpp" +#include "xbt/str.h" +#include #include - -#include - -#include "xbt/lib.h" -#include "surf/surf_routing.h" -#include "surf/surf.h" -#include "src/surf/surf_private.h" -#include "src/internal_config.h" - -#define NO_MAX_DURATION -1.0 +#include +#include +#include +#include +#include /********* * Utils * *********/ /* user-visible parameters */ -extern XBT_PRIVATE double sg_tcp_gamma; -extern XBT_PRIVATE double sg_sender_gap; +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_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 surf_path; +extern XBT_PRIVATE std::unordered_map traces_set_list; +extern XBT_PRIVATE std::set 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<) host_that_restart; - - -extern XBT_PRIVATE double sg_sender_gap; - -namespace simgrid { -namespace surf { -extern XBT_PRIVATE simgrid::xbt::signal 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 -}; +/** \ingroup SURF_simulation + * \brief List of hosts that have just restarted and whose autorestart process should be restarted. + */ +XBT_PUBLIC_DATA std::vector 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); - /** \ingroup SURF_models * \brief List of initialized models */ -XBT_PUBLIC_DATA(std::vector*) all_existing_models; - -namespace simgrid { -namespace surf { - -/** @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; - typedef boost::intrusive::list ActionList; - - enum class State { - ready = 0, /**< Ready */ - running, /**< Running */ - failed, /**< Task Failure */ - done, /**< Completed */ - to_free, /**< Action to free in next cleanup */ - not_in_the_system /**< Not in the system anymore. Why did you ask ? */ - }; - -public: - /** - * @brief Action constructor - * - * @param model The Model associated to this Action - * @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); - - /** - * @brief Action constructor - * - * @param model The Model associated to this Action - * @param cost The cost of the Action - * @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); - - /** @brief Destructor */ - virtual ~Action(); - - /** @brief Mark that the action is now finished */ - void finish(); - - /** @brief Get the [state](\ref simgrid::surf::Action::State) of the current Action */ - Action::State getState(); /**< 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(); - /** @brief Set the bound of the current Action */ - void setBound(double bound); - - /** @brief Get the start time of the current action */ - double getStartTime(); - /** @brief Get the finish time of the current action */ - double getFinishTime(); - - /** @brief Get the user data associated to the current action */ - void *getData() {return data_;} - /** @brief Set the user data associated to the current action */ - void setData(void* data); - - /** @brief Get the cost of the current action */ - double getCost() {return cost_;} - /** @brief Set the cost of the current action */ - void setCost(double cost) {cost_ = cost;} - - /** @brief Update the maximum duration of the current action - * @param delta Amount to remove from the MaxDuration */ - void updateMaxDuration(double delta) {double_update(&maxDuration_, delta,sg_surf_precision);} - - /** @brief Update the remaining time of the current action - * @param delta Amount to remove from the remaining time */ - void updateRemains(double delta) {double_update(&remains_, delta, sg_maxmin_precision*sg_surf_precision);} - - /** @brief Set the remaining time of the current action */ - void setRemains(double value) {remains_ = value;} - /** @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(); - - /** @brief Set the finish time of the current action */ - void setFinishTime(double value) {finishTime_ = value;} - - /**@brief Add a reference to the current action (refcounting) */ - void ref(); - /** @brief Unref that action (and destroy it if refcount reaches 0) - * @return true if the action was destroyed and false if someone still has references on it - */ - virtual int unref(); - - /** @brief Cancel the current Action if running */ - virtual void cancel(); - - /** @brief Suspend the current Action */ - virtual void suspend(); - - /** @brief Resume the current Action */ - virtual void resume(); - - /** @brief Returns true if the current action is running */ - virtual bool isSuspended(); - - /** @brief Get the maximum duration of the current action */ - double getMaxDuration() {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_;} - /** @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_;}; - /** @brief Set the priority of the current Action */ - virtual void setPriority(double priority); - - /** @brief Get the state set in which the action is */ - ActionList* getStateSet() {return stateSet_;}; - - s_xbt_swag_hookup_t stateHookup_ = {nullptr,nullptr}; - - simgrid::surf::Model *getModel() {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 start_; /**< start time */ - char *category_ = nullptr; /**< tracing category for categorized resource utilization monitoring */ - - double cost_; - simgrid::surf::Model *model_; - void *data_ = nullptr; /**< for your convenience */ - - /* LMM */ -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_;} - void refreshLastUpdate() {lastUpdate_ = surf_get_clock();} - enum heap_action_type getHat() {return hat_;} - bool is_linked() {return action_lmm_hook.is_linked();} - void gapRemove(); - -protected: - lmm_variable_t variable_ = nullptr; - double lastValue_ = 0; - double lastUpdate_ = 0; - int suspended_ = 0; - int indexHeap_; - enum heap_action_type hat_ = NOTSET; -}; - -typedef Action::ActionList ActionList; - -typedef boost::intrusive::member_hook< - Action, boost::intrusive::list_member_hook<>, &Action::action_lmm_hook> ActionLmmOptions; -typedef boost::intrusive::list ActionLmmList; -typedef ActionLmmList* ActionLmmListPtr; - -/********* - * Model * - *********/ - -/** @ingroup SURF_interface - * @brief SURF model interface class - * @details A model is an object which handle the interactions between its Resources and its Actions - */ -XBT_PUBLIC_CLASS Model { -public: - Model(); - virtual ~Model(); - - /** @brief Get the set of [actions](@ref Action) in *ready* state */ - virtual ActionList* getReadyActionSet() {return readyActionSet_;} - - /** @brief Get the set of [actions](@ref Action) in *running* state */ - virtual ActionList* getRunningActionSet() {return runningActionSet_;} - - /** @brief Get the set of [actions](@ref Action) in *failed* state */ - virtual ActionList* getFailedActionSet() {return failedActionSet_;} - - /** @brief Get the set of [actions](@ref Action) in *done* state */ - virtual ActionList* getDoneActionSet() {return doneActionSet_;} - - /** @brief Get the set of modified [actions](@ref Action) */ - virtual ActionLmmListPtr getModifiedSet() {return modifiedSet_;} - - /** @brief Get the maxmin system of the current Model */ - lmm_system_t getMaxminSystem() {return maxminSystem_;} - - /** - * @brief Get the update mechanism of the current Model - * @see e_UM_t - */ - e_UM_t getUpdateMechanism() {return updateMechanism_;} - - /** @brief Get Action heap */ - xbt_heap_t getActionHeap() {return actionHeap_;} - - /** - * @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 nextOccuringEvent(double now); - virtual double nextOccuringEventLazy(double now); - virtual double nextOccuringEventFull(double now); - - /** - * @brief Update action to the current time - * - * @param now The current time of the simulation - * @param delta The delta of time since the last update - */ - virtual void updateActionsState(double now, double delta); - virtual void updateActionsStateLazy(double now, double delta); - virtual void updateActionsStateFull(double now, double delta); - - /** @brief Returns whether this model have an idempotent shareResource() - * - * 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 nextOccuringEventIsIdempotent() { return true;} - -protected: - ActionLmmListPtr modifiedSet_; - lmm_system_t maxminSystem_ = nullptr; - e_UM_t updateMechanism_ = UM_UNDEFINED; - bool selectiveUpdate_; - xbt_heap_t actionHeap_; - -private: - 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 */ -}; - -} -} - -/************ - * 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 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: - std::string 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: - const lmm_constraint_t constraint_ = nullptr; -}; - -} -} - -namespace std { - template <> - struct hash - { - std::size_t operator()(const simgrid::surf::Resource& r) const - { - return (std::size_t) xbt_str_hash(r.getName()); - } - }; -} +XBT_PUBLIC_DATA std::vector* all_existing_models; #endif /* SURF_MODEL_H_ */