X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/28b7f1f95510fe2efa30fc2fb4b4d27826da931e..fbb63ef1525bb1e2c743972e397adceb042fc05a:/src/include/surf/surf.h diff --git a/src/include/surf/surf.h b/src/include/surf/surf.h index 536a63e86a..a35a9923e4 100644 --- a/src/include/surf/surf.h +++ b/src/include/surf/surf.h @@ -1,115 +1,485 @@ -/* Authors: Arnaud Legrand */ +/* $Id$ */ -/* 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. */ +/* Copyright (c) 2004 Arnaud Legrand. 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_SURF_H #define _SURF_SURF_H #include "xbt/swag.h" -#include "xbt/heap.h" /* for xbt_heap_float_t only */ -#include "surf/maxmin.h" /* for xbt_maxmin_float_t only */ +#include "xbt/dynar.h" +#include "xbt/dict.h" +#include "xbt/misc.h" +#include "gras_config.h" + +SG_BEGIN_DECL() + + /* Actions and resources are higly connected structures... */ + +/** \brief Action datatype + * \ingroup SURF_actions + * + * An action is some working amount on a resource. + * It is represented as a cost, a priority, a duration and a state. + * + * \see e_surf_action_state_t + */ typedef struct surf_action *surf_action_t; -typedef struct surf_resource *surf_resource_t; -/*****************/ -/* Action object */ -/*****************/ -typedef enum { - SURF_ACTION_READY = 0, /* Ready */ - SURF_ACTION_RUNNING, /* Running */ - SURF_ACTION_FAILED, /* Task Failure */ - SURF_ACTION_DONE, /* Completed */ - SURF_ACTION_NOT_IN_THE_SYSTEM /* Not in the system anymore. Why did you ask ? */ -} e_surf_action_state_t; +/** \brief Resource datatype + * \ingroup SURF_resources + * + * Generic data structure for a resource. The workstations, + * the CPUs and the network links are examples of resources. + */ +typedef struct surf_resource *surf_resource_t; -/* Never create s_surf_action_t by yourself !!!! */ -/* Use action_new from the corresponding resource */ +/** \brief Action structure + * \ingroup SURF_actions + * + * Never create s_surf_action_t by yourself ! The actions are created + * on the fly when you call execute or communicate on a resource. + * + * \see e_surf_action_state_t + */ typedef struct surf_action { s_xbt_swag_hookup_t state_hookup; xbt_swag_t state_set; - xbt_maxmin_float_t cost; /* cost */ - xbt_maxmin_float_t remains; /* How much of that cost remains to + double cost; /**< cost */ + double priority; /**< priority (1.0 by default) */ + double 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 */ - xbt_heap_float_t start; /* start time */ - xbt_heap_float_t finish; /* finish time : this is modified during the run + double start; /**< start time */ + double finish; /**< finish time : this is modified during the run * and fluctuates until the task is completed */ - void *callback; /* for your convenience */ + void *data; /**< for your convenience */ + int using; surf_resource_t resource_type; } s_surf_action_t; +/** \brief Action states + * \ingroup SURF_actions + * + * Action states. + * + * \see surf_action_t, surf_action_state_t + */ +typedef enum { + SURF_ACTION_READY = 0, /**< Ready */ + SURF_ACTION_RUNNING, /**< Running */ + SURF_ACTION_FAILED, /**< Task Failure */ + SURF_ACTION_DONE, /**< Completed */ + SURF_ACTION_TO_FREE, /**< Action to free in next cleanup */ + SURF_ACTION_NOT_IN_THE_SYSTEM /**< Not in the system anymore. Why did you ask ? */ +} e_surf_action_state_t; + +/** \brief Action state sets + * \ingroup SURF_actions + * + * This structure contains some sets of actions. + * It provides a fast access to the actions in each state. + * + * \see surf_action_t, e_surf_action_state_t + */ +typedef struct surf_action_state { + xbt_swag_t ready_action_set; /**< Actions in state SURF_ACTION_READY */ + xbt_swag_t running_action_set; /**< Actions in state SURF_ACTION_RUNNING */ + xbt_swag_t failed_action_set; /**< Actions in state SURF_ACTION_FAILED */ + xbt_swag_t done_action_set; /**< Actions in state SURF_ACTION_DONE */ +} s_surf_action_state_t, *surf_action_state_t; + /***************************/ /* Generic resource object */ /***************************/ + +/** \brief Public data available on all resources + * \ingroup SURF_resources + * + * These functions are implemented by all resources. + */ +typedef struct surf_resource_public { + s_surf_action_state_t states; /**< Any living action on this resource */ + void *(*name_service) (const char *name); /**< Return a resource given its name */ + const char *(*get_resource_name) (void *resource_id); /**< Return the name of a resource */ + + e_surf_action_state_t(*action_get_state) (surf_action_t action); /**< Return the state of an action */ + double (*action_get_start_time) (surf_action_t action); /**< Return the start time of an action */ + double (*action_get_finish_time) (surf_action_t action); /**< Return the finish time of an action */ + void (*action_use) (surf_action_t action); /**< Set an action used */ + int (*action_free) (surf_action_t action); /**< Free an action */ + void (*action_cancel) (surf_action_t action); /**< Cancel a running action */ + void (*action_recycle) (surf_action_t action); /**< Recycle an action */ + void (*action_change_state) (surf_action_t action, /**< Change an action state*/ + e_surf_action_state_t state); + void (*action_set_data) (surf_action_t action, void *data); /**< Set the user data of an action */ + void (*suspend) (surf_action_t action); /**< Suspend an action */ + void (*resume) (surf_action_t action); /**< Resume a suspended action */ + int (*is_suspended) (surf_action_t action); /**< Return whether an action is suspended */ + void (*set_max_duration) (surf_action_t action, double duration); /**< Set the max duration of an action*/ + void (*set_priority) (surf_action_t action, double priority); /**< Set the priority of an action */ + const char *name; /**< Name of this resource */ +} s_surf_resource_public_t, *surf_resource_public_t; + +/** \brief Private data available on all resources + * \ingroup SURF_resources + */ +typedef struct surf_resource_private *surf_resource_private_t; + +/** \brief Resource datatype + * \ingroup SURF_resources + * + * Generic data structure for a resource. The workstations, + * the CPUs and the network links are examples of resources. + */ typedef struct surf_resource { - void (*parse_file)(const char *file); - void *(*name_service)(const char *name); - const char *(*get_resource_name)(void *resource_id); - - /* surf_action_t (*action_new)(void *callback); */ - /* Not defined here. Actions have to be created by actually - performing it and prototype may therefore vary with the resource - implementation */ - - e_surf_action_state_t (*action_get_state)(surf_action_t action); - void (*action_free)(surf_action_t * action); /* Call it when you're done with this action */ - void (*action_cancel)(surf_action_t action); /* remove the variables from the linear system if needed */ - void (*action_recycle)(surf_action_t action); /* More efficient than free/new */ - void (*action_change_state)(surf_action_t action, e_surf_action_state_t state); - - xbt_heap_float_t (*share_resources)(void); /* Share the resources to the - actions and return the potential - next action termination */ - void (*solve)(xbt_heap_float_t date); /* Advance time to "date" and update - the actions' state*/ + surf_resource_private_t common_private; + surf_resource_public_t common_public; } s_surf_resource_t; /**************************************/ /* Implementations of resource object */ /**************************************/ + +/** \brief Timer resource extension public + * \ingroup SURF_resource + * + * Additionnal functions specific to the timer resource + */ +typedef struct surf_timer_resource_extension_public { + void (*set) (double date, void *function, void *arg); + int (*get) (void **function, void **arg); +} s_surf_timer_resource_extension_public_t, + *surf_timer_resource_extension_public_t; + +/** \brief Timer resource + * \ingroup SURF_resources + */ +typedef struct surf_timer_resource { + surf_resource_private_t common_private; + surf_resource_public_t common_public; + surf_timer_resource_extension_public_t extension_public; +} s_surf_timer_resource_t, *surf_timer_resource_t; + +/** \brief The timer resource + * \ingroup SURF_resources + */ +XBT_PUBLIC_DATA(surf_timer_resource_t) surf_timer_resource; + +/** \brief Initializes the timer resource + * \ingroup SURF_resources + */ +XBT_PUBLIC(void) surf_timer_resource_init(const char *filename); + /* Cpu resource */ + +/** \brief CPU state + * \ingroup SURF_resources + */ typedef enum { - SURF_CPU_ON = 1, /* Ready */ - SURF_CPU_OFF = 0, /* Running */ + SURF_CPU_ON = 1, /**< Ready */ + SURF_CPU_OFF = 0 /**< Running */ } e_surf_cpu_state_t; +/** \brief CPU resource extension public + * \ingroup SURF_resources + * + * Public functions specific to the CPU resource. + */ +typedef struct surf_cpu_resource_extension_public { + surf_action_t(*execute) (void *cpu, double size); + surf_action_t(*sleep) (void *cpu, double duration); + e_surf_cpu_state_t(*get_state) (void *cpu); + double (*get_speed) (void *cpu, double load); + double (*get_available_speed) (void *cpu); +} s_surf_cpu_resource_extension_public_t, + *surf_cpu_resource_extension_public_t; + +/** \brief CPU resource datatype + * \ingroup SURF_resources + */ typedef struct surf_cpu_resource { - s_surf_resource_t resource; - surf_action_t (*execute)(void *cpu, xbt_maxmin_float_t size); - e_surf_cpu_state_t (*get_state)(void *cpu); + surf_resource_private_t common_private; + surf_resource_public_t common_public; + surf_cpu_resource_extension_public_t extension_public; } s_surf_cpu_resource_t, *surf_cpu_resource_t; -extern surf_cpu_resource_t surf_cpu_resource; + +/** \brief The CPU resource + * \ingroup SURF_resources + */ +XBT_PUBLIC_DATA(surf_cpu_resource_t) surf_cpu_resource; + +/** \brief Initializes the CPU resource with the model Cas01 + * \ingroup SURF_resources + * + * This function is called by surf_workstation_resource_init_CLM03 + * so you shouldn't have to call it by yourself. + * + * \see surf_workstation_resource_init_CLM03() + */ +XBT_PUBLIC(void) surf_cpu_resource_init_Cas01(const char *filename); /* Network resource */ + +/** \brief Network resource extension public + * \ingroup SURF_resources + * + * Public functions specific to the network resource + */ +typedef struct surf_network_resource_extension_public { + surf_action_t(*communicate) (void *src, void *dst, double size, + double max_rate); + const void** (*get_route) (void *src, void *dst); + int (*get_route_size) (void *src, void *dst); + const char* (*get_link_name) (const void *link); + double (*get_link_bandwidth) (const void *link); + double (*get_link_latency) (const void *link); +} s_surf_network_resource_extension_public_t, + *surf_network_resource_extension_public_t; + +/** \brief Network resource datatype + * \ingroup SURF_resources + */ typedef struct surf_network_resource { - s_surf_resource_t resource; - surf_action_t (*communicate)(void *src, void *dst, xbt_maxmin_float_t size); -} s_surf_network_resource_t, surf_network_resource_t; -extern surf_network_resource_t surf_network_resource; + surf_resource_private_t common_private; + surf_resource_public_t common_public; + surf_network_resource_extension_public_t extension_public; +} s_surf_network_resource_t, *surf_network_resource_t; -/* Timer resource */ -typedef struct surf_timer_resource { - s_surf_resource_t resource; - surf_action_t (*wait)(void *cpu, void *dst, xbt_maxmin_float_t size); -} s_surf_timer_resource_t, surf_timer_resource_t; -extern surf_timer_resource_t surf_timer_resource; +/** \brief The network resource + * \ingroup SURF_resources + * + * When creating a new API on top on SURF, you shouldn't use the + * network resource unless you know what you are doing. Only the workstation + * resource should be accessed because depending on the platform model, + * the network resource can be NULL. + */ +XBT_PUBLIC_DATA(surf_network_resource_t) surf_network_resource; + +/** \brief Initializes the platform with the network model CM02 + * \ingroup SURF_resources + * \param filename XML platform file name + * + * This function is called by surf_workstation_resource_init_CLM03 + * so you shouldn't call it by yourself. + * + * \see surf_workstation_resource_init_CLM03() + */ +XBT_PUBLIC(void) surf_network_resource_init_CM02(const char *filename); + +/** \brief Workstation resource extension public + * \ingroup SURF_resources + * + * Public functions specific to the workstation resource. + */ +typedef struct surf_workstation_resource_extension_public { + surf_action_t(*execute) (void *workstation, double size); /**< Execute a computation amount on a workstation + and create the corresponding action */ + surf_action_t(*sleep) (void *workstation, double duration); /**< Make a workstation sleep during a given duration */ + e_surf_cpu_state_t(*get_state) (void *workstation); /**< Return the CPU state of a workstation */ + double (*get_speed) (void *workstation, double load); /**< Return the speed of a workstation */ + double (*get_available_speed) (void *workstation); /**< Return tha available speed of a workstation */ + surf_action_t(*communicate) (void *workstation_src, /**< Execute a communication amount between two workstations */ + void *workstation_dst, double size, + double max_rate); + surf_action_t(*execute_parallel_task) (int workstation_nb, /**< Execute a parallel task on several workstations */ + void **workstation_list, + double *computation_amount, + double *communication_amount, + double amount, + double rate); + const void** (*get_route) (void *src, void *dst); /**< Return the network link list between two workstations */ + int (*get_route_size) (void *src, void *dst); /**< Return the route size between two workstations */ + const char* (*get_link_name) (const void *link); /**< Return the name of a network link */ + double (*get_link_bandwidth) (const void *link); /**< Return the current bandwidth of a network link */ + double (*get_link_latency) (const void *link); /**< Return the current latency of a network link */ +} s_surf_workstation_resource_extension_public_t, + *surf_workstation_resource_extension_public_t; + +/** \brief Workstation resource datatype. + * \ingroup SURF_resources + * + */ +typedef struct surf_workstation_resource { + surf_resource_private_t common_private; + surf_resource_public_t common_public; + surf_workstation_resource_extension_public_t extension_public; +} s_surf_workstation_resource_t, *surf_workstation_resource_t; + +/** \brief The workstation resource + * \ingroup SURF_resources + * + * Note that when you create an API on top of SURF, + * the workstation resource should be the only one you use + * because depending on the platform model, the network resource and the CPU resource + * may not exist. + */ +XBT_PUBLIC_DATA(surf_workstation_resource_t) surf_workstation_resource; + +/** \brief Initializes the platform with the workstation model CLM03 + * \ingroup SURF_resources + * \param filename XML platform file name + * + * This platform model seperates the workstation resource and the network resource. + * The workstation resource will be initialized with the model CLM03, the network + * resource with the model CM02 and the CPU resource with the model Cas01. + * In future releases, some other network models will be implemented and will be + * combined with the workstation model CLM03. + * + * \see surf_workstation_resource_init_KCCFLN05() + */ +XBT_PUBLIC(void) surf_workstation_resource_init_CLM03(const char *filename); + +/** \brief Initializes the platform with the model KCCFLN05 + * \ingroup SURF_resources + * \param filename XML platform file name + * + * With this model, the workstations and the network are handled together. + * There is no network resource. This platform model is the default one for + * MSG and SimDag. + * + * \see surf_workstation_resource_init_CLM03() + */ +XBT_PUBLIC(void) surf_workstation_resource_init_KCCFLN05(const char *filename); + +/** \brief Initializes the platform with the model KCCFLN05 using the proportional + * approach as described in [TAG03]. + * + * \ingroup SURF_resources + * \param filename XML platform file name + * + * This function implements the proportional fairness known as the maximization + * of sum ( x1*x2*...*xn ). + * + * Reference: + * + * [TAG03]. Corinne Touati, Eitan Altman, and Jérôme Galtier. + * Semi-definite programming approach for bandwidth allocation and routing in networks. + * Game Theory and Applications, 9:169-179, December 2003. Nova publisher. + * With this model, the workstations and the network are handled together. + * There is no network resource. This platform model is the default one for + * MSG and SimDag. + * + * \see surf_workstation_resource_init_CLM03() + */ +XBT_PUBLIC(void) surf_workstation_resource_init_KCCFLN05_proportionnal(const char *filename); + +/** \brief Initializes the platform with the model KCCFLN05 using a lagrange + * optimization approach to compute the effectivet bandwidth of each flow based + * on the Vegas TCP flavor fairness as shown in [LOW03]. + * + * \ingroup SURF_resources + * \param filename XML platform file name + * + * 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. + * + */ +XBT_PUBLIC(void) surf_workstation_resource_init_KCCFLN05_Vegas(const char *filename); + +/** \brief Initializes the platform with the model KCCFLN05 using a lagrange + * optimization approach to compute the effectivet bandwidth of each flow based + * on the Reno TCP flavor fairness as shown in [LOW03]. + * + * \ingroup SURF_resources + * \param filename XML platform file name + * + * 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. + * + * \see surf_workstation_resource_init_KCCFLN05_Vegas() + */ +XBT_PUBLIC(void) surf_workstation_resource_init_KCCFLN05_Reno(const char *filename); + + + + +#ifdef USE_GTNETS +XBT_PUBLIC(void) surf_workstation_resource_init_GTNETS(const char *filename); +#endif + +/** \brief The network links + * \ingroup SURF_resources + * + * This dict contains all network links. + * + * \see workstation_set + */ +XBT_PUBLIC_DATA(xbt_dict_t) network_link_set; + +/** \brief The workstations + * \ingroup SURF_resources + * + * This dict contains all workstations. + * + * \see network_link_set + */ +XBT_PUBLIC_DATA(xbt_dict_t) workstation_set; + +/** \brief List of initialized resources + * \ingroup SURF_resources + */ +XBT_PUBLIC_DATA(xbt_dynar_t) resource_list; /*******************************************/ /*** SURF Globals **************************/ /*******************************************/ -typedef struct surf_global { - xbt_swag_t ready_action_set; - xbt_swag_t running_action_set; - xbt_swag_t failed_action_set; - xbt_swag_t done_action_set; -} s_surf_global_t; -/* The main function */ -extern s_surf_global_t surf_global; - -void surf_init(void); /* initialize all resource objects */ -xbt_heap_float_t surf_solve(void); /* returns the next date */ + +/** \brief Initialize SURF + * \ingroup SURF_simulation + * \param argc argument number + * \param argv arguments + * + * This function has to be called to initialize the common structures. + * Then you will have to create the environment by calling surf_timer_resource_init() + * and surf_workstation_resource_init_CLM03() or surf_workstation_resource_init_KCCFLN05(). + * + * \see surf_timer_resource_init(), surf_workstation_resource_init_CLM03(), + * surf_workstation_resource_init_KCCFLN05(), surf_exit() + */ +XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */ + +/** \brief Performs a part of the simulation + * \ingroup SURF_simulation + * \return the elapsed time, or -1.0 if no event could be executed + * + * This function execute all possible events, update the action states + * and returns the time elapsed. + * When you call execute or communicate on a resource, the corresponding actions + * are not executed immediately but only when you call surf_solve. + * Note that the returned elapsed time can be zero. + */ +XBT_PUBLIC(double) surf_solve(void); + +/** \brief Return the current time + * \ingroup SURF_simulation + * + * Return the current time in millisecond. + */ +XBT_PUBLIC(double)surf_get_clock(void); + +/** \brief Exit SURF + * \ingroup SURF_simulation + * + * Clean everything. + * + * \see surf_init() + */ +XBT_PUBLIC(void) surf_exit(void); + + +SG_END_DECL() #endif /* _SURF_SURF_H */