-/* Copyright (c) 2004-2015. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2004-2019. 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 "src/surf/surf_private.hpp"
+
+#include <cmath>
+#include <set>
#include <string>
+#include <unordered_map>
#include <vector>
-#include <memory>
-#include <boost/function.hpp>
-#include <boost/intrusive/list.hpp>
-#include "surf/trace_mgr.h"
-#include "xbt/lib.h"
-#include "surf/surf_routing.h"
-#include "simgrid/platf_interface.h"
-#include "surf/surf.h"
-#include "src/surf/surf_private.h"
-#include "src/internal_config.h"
-
-#ifdef LIBSIGC
-#include <sigc++/sigc++.h>
-#define surf_callback(arg1, ...) sigc::signal<arg1,__VA_ARGS__>
-#define surf_callback_connect(callback, fun_ptr) callback.connect(sigc::ptr_fun(fun_ptr))
-#define surf_callback_emit(callback, ...) callback.emit(__VA_ARGS__)
-#else
-#include <boost/signals2.hpp>
-#define surf_callback(arg1, ...) boost::signals2::signal<arg1(__VA_ARGS__)>
-#define surf_callback_connect(callback, fun_ptr) callback.connect(fun_ptr)
-#define surf_callback_emit(callback, ...) callback(__VA_ARGS__)
-#endif
-
-#ifdef _MSC_VER
-#pragma warning( disable : 4251)
-// 4251: needs to have dll-interface to be used by clients of class
-#endif
-
-extern XBT_PRIVATE tmgr_history_t history;
-#define NO_MAX_DURATION -1.0
-
-using namespace std;
/*********
* 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<std::string> surf_path;
+extern XBT_PRIVATE std::unordered_map<std::string, simgrid::kernel::profile::Profile*> 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;
-
-extern XBT_PRIVATE surf_callback(void, void) surfExitCallbacks;
-
-int XBT_PRIVATE __surf_is_absolute_file_path(const char *file_path);
-
-/***********
- * Classes *
- ***********/
-
-enum heap_action_type{
- LATENCY = 100,
- MAX_DURATION,
- NORMAL,
- NOTSET
-};
-
-/*********
- * 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;
-XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_host_avail;
-XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_power;
-XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_avail;
-XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_bandwidth;
-XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_latency;
+static inline int double_positive(double value, double precision)
+{
+ return (value > precision);
+}
-/**********
- * Action *
- **********/
-XBT_PRIVATE void surf_action_lmm_update_index_heap(void *action, int i);
+static inline int double_equals(double value1, double value2, double precision)
+{
+ return (fabs(value1 - value2) < precision);
+}
-/** @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)
+/** @ingroup SURF_models
+ * @brief Initializes the CPU model with the model Cas01
+ *
+ * By default, this model uses the lazy optimization mechanism that relies on partial invalidation in LMM and a heap
+ * for lazy action update.
+ * You can change this behavior by setting the cpu/optim configuration variable to a different value.
+ *
+ * You shouldn't have to call it by yourself.
*/
-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<Action, ActionOptions> ActionList;
-private:
- /**
- * @brief Common initializations for the constructors
- */
- void initialize(Model *model, double cost, bool failed,
- lmm_variable_t var = NULL);
-
-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(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(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 e_surf_action_state_t) of the current Action */
- e_surf_action_state_t getState(); /**< get the state*/
- /** @brief Set the [state](\ref e_surf_action_state_t) of the current Action */
- virtual void setState(e_surf_action_state_t 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 p_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 m_cost;}
- /** @brief Set the cost of the current action */
- void setCost(double cost) {m_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(&m_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(&m_remains, delta, sg_maxmin_precision*sg_surf_precision);}
-
- /** @brief Set the remaining time of the current action */
- void setRemains(double value) {m_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) {m_finish = 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 m_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 p_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 m_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 p_stateSet;};
-
- s_xbt_swag_hookup_t p_stateHookup;
-
- Model *getModel() {return p_model;}
-
-protected:
- ActionList* p_stateSet;
- double m_priority; /**< priority (1.0 by default) */
- int m_refcount;
- double m_remains; /**< How much of that cost remains to be done in the currently running task */
- double m_maxDuration; /*< max_duration (may fluctuate until the task is completed) */
- double m_finish; /**< finish time : this is modified during the run and fluctuates until the task is completed */
-
-private:
- double m_start; /**< start time */
- char *p_category; /**< tracing category for categorized resource utilization monitoring */
-
- #ifdef HAVE_LATENCY_BOUND_TRACKING
- int m_latencyLimited; /**< Set to 1 if is limited by latency, 0 otherwise */
- #endif
- double m_cost;
- Model *p_model;
- void *p_data; /**< 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 p_variable;}
- double getLastUpdate() {return m_lastUpdate;}
- void refreshLastUpdate() {m_lastUpdate = surf_get_clock();}
- enum heap_action_type getHat() {return m_hat;}
- bool is_linked() {return action_lmm_hook.is_linked();}
- void gapRemove();
-
-protected:
- lmm_variable_t p_variable;
- double m_lastValue;
- double m_lastUpdate;
- int m_suspended;
- int m_indexHeap;
- enum heap_action_type m_hat;
-};
-
-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;
-
-/*********
- * Model *
- *********/
-XBT_PUBLIC_DATA(xbt_dynar_t) model_list;
+XBT_PUBLIC void surf_cpu_model_init_Cas01();
+
+/** @ingroup SURF_models
+ * @brief Same as network model 'LagrangeVelho', only with different correction factors.
+ *
+ * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud based on the model 'LV08' and
+ * different correction factors depending on the communication size (< 1KiB, < 64KiB, >= 64KiB).
+ * See comments in the code for more information.
+ *
+ * @see surf_host_model_init_SMPI()
+ */
+XBT_PUBLIC void surf_network_model_init_SMPI();
+
+/** @ingroup SURF_models
+ * @brief Same as network model 'LagrangeVelho', only with different correction factors.
+ *
+ * This model impelments a variant of the contention model on Infinband networks based on
+ * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
+ *
+ * @see surf_host_model_init_IB()
+ */
+XBT_PUBLIC void surf_network_model_init_IB();
+
+/** @ingroup SURF_models
+ * @brief Initializes the platform with the network model 'LegrandVelho'
+ *
+ * This model is proposed by Arnaud Legrand and Pedro Velho based on the results obtained with the GTNets simulator for
+ * onelink and dogbone sharing scenarios. See comments in the code for more information.
+ *
+ * @see surf_host_model_init_LegrandVelho()
+ */
+XBT_PUBLIC void surf_network_model_init_LegrandVelho();
+
+/** @ingroup SURF_models
+ * @brief Initializes the platform with the network model 'Constant'
+ *
+ * In this model, the communication time between two network cards is constant, hence no need for a routing table.
+ * This is particularly useful when simulating huge distributed algorithms where scalability is really an issue. This
+ * function is called in conjunction with surf_host_model_init_compound.
+ *
+ * @see surf_host_model_init_compound()
+ */
+XBT_PUBLIC void surf_network_model_init_Constant();
-/** @ingroup SURF_interface
- * @brief SURF model interface class
- * @details A model is an object which handle the interactions between its Resources and its Actions
+/** @ingroup SURF_models
+ * @brief Initializes the platform with the network model CM02
+ *
+ * You sould call this function by yourself only if you plan using surf_host_model_init_compound.
+ * See comments in the code for more information.
*/
-XBT_PUBLIC_CLASS Model {
-public:
- /** @brief Constructor */
- Model();
- /** @brief Destructor */
- virtual ~Model();
-
- virtual void addTraces() =0;
-
- /**
- * @brief Get the set of [actions](@ref Action) in *ready* state
- *
- * @return The set of [actions](@ref Action) in *ready* state
- */
- virtual ActionList* getReadyActionSet() {return p_readyActionSet;}
-
- /**
- * @brief Get the set of [actions](@ref Action) in *running* state
- *
- * @return The set of [actions](@ref Action) in *running* state
- */
- virtual ActionList* getRunningActionSet() {return p_runningActionSet;}
-
- /**
- * @brief Get the set of [actions](@ref Action) in *failed* state
- *
- * @return The set of [actions](@ref Action) in *failed* state
- */
- virtual ActionList* getFailedActionSet() {return p_failedActionSet;}
-
- /**
- * @brief Get the set of [actions](@ref Action) in *done* state
- *
- * @return The set of [actions](@ref Action) in *done* state
- */
- virtual ActionList* getDoneActionSet() {return p_doneActionSet;}
-
- /**
- * @brief Get the set of modified [actions](@ref Action)
- *
- * @return The set of modified [actions](@ref Action)
- */
- virtual ActionLmmListPtr getModifiedSet() {return p_modifiedSet;}
-
- /**
- * @brief Get the maxmin system of the current Model
- *
- * @return The maxmin system of the current Model
- */
- lmm_system_t getMaxminSystem() {return p_maxminSystem;}
-
- /**
- * @brief Get the update mechanism of the current Model
- * @see e_UM_t
- *
- * @return [description]
- */
- e_UM_t getUpdateMechanism() {return p_updateMechanism;}
-
- /**
- * @brief Get Action heap
- * @details [TODO]
- *
- * @return The Action heap
- */
- xbt_heap_t getActionHeap() {return p_actionHeap;}
-
- /**
- * @brief share the resources
- * @details 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 shareResources(double now);
- virtual double shareResourcesLazy(double now);
- virtual double shareResourcesFull(double now);
- double shareResourcesMaxMin(ActionList* running_actions,
- lmm_system_t sys,
- void (*solve) (lmm_system_t));
-
- /**
- * @brief Update state of actions
- * @details 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 shareResourcesIsIdempotent()=0;
-
-protected:
- ActionLmmListPtr p_modifiedSet;
- lmm_system_t p_maxminSystem;
- e_UM_t p_updateMechanism = UM_UNDEFINED;
- int m_selectiveUpdate;
- xbt_heap_t p_actionHeap;
-
-private:
- ActionList* p_readyActionSet; /**< Actions in state SURF_ACTION_READY */
- ActionList* p_runningActionSet; /**< Actions in state SURF_ACTION_RUNNING */
- ActionList* p_failedActionSet; /**< Actions in state SURF_ACTION_FAILED */
- ActionList* p_doneActionSet; /**< Actions in state SURF_ACTION_DONE */
-};
+XBT_PUBLIC void surf_network_model_init_CM02();
+
+/** @ingroup SURF_models
+ * @brief Initializes the platform with the network model NS3
+ *
+ * This function is called by surf_host_model_init_NS3 or by yourself only if you plan using
+ * surf_host_model_init_compound
+ *
+ * @see surf_host_model_init_NS3()
+ */
+XBT_PUBLIC void surf_network_model_init_NS3();
+
+/** @ingroup SURF_models
+ * @brief Initializes the platform with the network model Reno
+ *
+ * The problem is related to max( sum( arctan(C * Df * xi) ) ).
+ *
+ * Reference:
+ * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
+ * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
+ *
+ * Call this function only if you plan using surf_host_model_init_compound.
+ */
+XBT_PUBLIC void surf_network_model_init_Reno();
+
+/** @ingroup SURF_models
+ * @brief Initializes the platform with the network model Reno2
+ *
+ * The problem is related to max( sum( arctan(C * Df * xi) ) ).
+ *
+ * Reference:
+ * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
+ * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
+ *
+ * Call this function only if you plan using surf_host_model_init_compound.
+ */
+XBT_PUBLIC void surf_network_model_init_Reno2();
+
+/** @ingroup SURF_models
+ * @brief Initializes the platform with the network model Vegas
+ *
+ * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent to the proportional fairness.
+ *
+ * Reference:
+ * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
+ * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
+ *
+ * Call this function only if you plan using surf_host_model_init_compound.
+ */
+XBT_PUBLIC void surf_network_model_init_Vegas();
+
+/** @ingroup SURF_models
+ * @brief Initializes the platform with the current best network and cpu models at hand
+ *
+ * This platform model seperates the host model and the network model.
+ * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
+ * traffic support) and the CPU model with the model Cas01.
+ * Such model is subject to modification with warning in the ChangeLog so monitor it!
+ */
+XBT_PUBLIC void surf_vm_model_init_HL13();
-/************
- * Resource *
- ************/
+/** @ingroup SURF_models
+ * @brief Initializes the platform with a compound host model
+ *
+ * This function should be called after a cpu_model and a network_model have been set up.
+ */
+XBT_PUBLIC void surf_host_model_init_compound();
+
+/** @ingroup SURF_models
+ * @brief Initializes the platform with the current best network and cpu models at hand
+ *
+ * This platform model separates the host model and the network model.
+ * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
+ * traffic support) and the CPU model with the model Cas01.
+ * Such model is subject to modification with warning in the ChangeLog so monitor it!
+ */
+XBT_PUBLIC void surf_host_model_init_current_default();
-/** @ingroup SURF_interface
- * @brief Resource which have a metric handled by a maxmin system
+/** @ingroup SURF_models
+ * @brief Initializes the platform with the model L07
+ *
+ * With this model, only parallel tasks can be used. Resource sharing is done by identifying bottlenecks and giving an
+ * equal share of the model to each action.
*/
-typedef struct {
- double scale; /**< The scale of the metric */
- double peak; /**< The peak of the metric */
- tmgr_trace_event_t event; /**< The associated trace event associated to the metric */
-} s_surf_metric_t;
-
-/** @ingroup SURF_interface
- * @brief SURF resource interface class
- * @details A resource represent an element of a component (e.g.: a link for the network)
+XBT_PUBLIC void surf_host_model_init_ptask_L07();
+
+/** @ingroup SURF_models
+ * @brief The storage model
*/
-XBT_PUBLIC_CLASS Resource {
-public:
- /**
- * @brief Resource constructor
- */
- Resource();
-
- /**
- * @brief Resource constructor
- *
- * @param model Model associated to this Resource
- * @param name The name of the Resource
- * @param props Dictionary of properties associated to this Resource
- */
- Resource(Model *model, const char *name, xbt_dict_t props);
-
- /**
- * @brief Resource constructor
- *
- * @param model Model associated to this Resource
- * @param name The name of the Resource
- * @param props Dictionary of properties associated to this Resource
- * @param constraint The lmm constraint associated to this Resource if it is part of a LMM component
- */
- Resource(Model *model, const char *name, xbt_dict_t props, lmm_constraint_t constraint);
- /**
- * @brief Resource constructor
- *
- * @param model Model associated to this Resource
- * @param name The name of the Resource
- * @param props Dictionary of properties associated to this Resource
- * @param stateInit the initial state of the Resource
- */
- Resource(Model *model, const char *name, xbt_dict_t props, e_surf_resource_state_t stateInit);
-
- /**
- * @brief Resource destructor
- */
- virtual ~Resource();
-
- /**
- * @brief Get the Model of the current Resource
- *
- * @return The Model of the current Resource
- */
- Model *getModel();
-
- /**
- * @brief Get the name of the current Resource
- *
- * @return The name of the current Resource
- */
- const char *getName();
-
- /**
- * @brief Get the properties of the current Resource
- *
- * @return The properties of the current Resource
- */
- virtual xbt_dict_t getProperties();
-
- /**
- * @brief Update the state of the current Resource
- * @details [TODO]
- *
- * @param event_type [TODO]
- * @param value [TODO]
- * @param date [TODO]
- */
- virtual void updateState(tmgr_trace_event_t event_type, double value, double date)=0;
-
- /**
- * @brief Check if the current Resource is used
- * @return true if the current Resource is used, false otherwise
- */
- virtual bool isUsed()=0;
-
- /**
- * @brief Check if the current Resource is active
- *
- * @return true if the current Resource is active, false otherwise
- */
- bool isOn();
-
- /**
- * @brief Turn on the current Resource
- */
- void turnOn();
-
- /**
- * @brief Turn off the current Resource
- */
- void turnOff();
-
- /**
- * @brief Get the [state](\ref e_surf_resource_state_t) of the current Resource
- *
- * @return The state of the currenrt Resource
- */
- virtual e_surf_resource_state_t getState();
-
- /**
- * @brief Set the [state](\ref e_surf_resource_state_t) of the current Resource
- *
- * @param state The new state of the current Resource
- */
- virtual void setState(e_surf_resource_state_t state);
-
-private:
- const char *p_name;
- xbt_dict_t p_properties;
- Model *p_model;
- bool m_running;
- e_surf_resource_state_t m_stateCurrent;
-
- /* LMM */
-public:
- /**
- * @brief Get the lmm constraint associated to this Resource if it is part of a LMM component
- *
- * @return The lmm constraint associated to this Resource
- */
- lmm_constraint_t getConstraint();
-private:
- lmm_constraint_t p_constraint;
+XBT_PUBLIC void surf_storage_model_init_default();
+
+/* --------------------
+ * Model Descriptions
+ * -------------------- */
+/** @brief Resource model description */
+struct surf_model_description {
+ const char* name;
+ const char* description;
+ void_f_void_t model_init_preparse;
};
+typedef struct surf_model_description s_surf_model_description_t;
+
+XBT_PUBLIC int find_model_description(s_surf_model_description_t* table, const std::string& name);
+XBT_PUBLIC void model_help(const char* category, s_surf_model_description_t* table);
+
+#define SIMGRID_REGISTER_PLUGIN(id, desc, init) \
+ void simgrid_##id##_plugin_register(); \
+ void XBT_ATTRIB_CONSTRUCTOR(800) simgrid_##id##_plugin_register() { \
+ simgrid_add_plugin_description(#id, desc, init); \
+ }
+
+XBT_PUBLIC void simgrid_add_plugin_description(const char* name, const char* description, void_f_void_t init_fun);
+
+/** @brief The list of all available plugins */
+XBT_PUBLIC_DATA s_surf_model_description_t* surf_plugin_description;
+/** @brief The list of all available optimization modes (both for cpu and networks).
+ * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:... */
+XBT_PUBLIC_DATA s_surf_model_description_t surf_optimization_mode_description[];
+/** @brief The list of all cpu models (pick one with --cfg=cpu/model) */
+XBT_PUBLIC_DATA s_surf_model_description_t surf_cpu_model_description[];
+/** @brief The list of all network models (pick one with --cfg=network/model) */
+XBT_PUBLIC_DATA s_surf_model_description_t surf_network_model_description[];
+/** @brief The list of all storage models (pick one with --cfg=storage/model) */
+XBT_PUBLIC_DATA s_surf_model_description_t surf_storage_model_description[];
+/** @brief The list of all host models (pick one with --cfg=host/model:) */
+XBT_PUBLIC_DATA s_surf_model_description_t surf_host_model_description[];
+
+/**********
+ * Action *
+ **********/
#endif /* SURF_MODEL_H_ */
