3 /* Copyright (c) 2004 Arnaud Legrand. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
12 #include "xbt/dynar.h"
16 #include "xbt/config.h"
22 /* Actions and models are higly connected structures... */
23 /** \brief Action datatype
24 * \ingroup SURF_actions
26 * An action is some working amount on a model.
27 * It is represented as a cost, a priority, a duration and a state.
29 * \see e_surf_action_state_t
31 typedef struct surf_action *surf_action_t;
33 /** \brief Model datatype
34 * \ingroup SURF_models
36 * Generic data structure for a model. The workstations,
37 * the CPUs and the network links are examples of models.
39 typedef struct surf_model *surf_model_t;
41 /** \brief Resource model description
43 typedef struct surf_model_description {
46 void (*model_init) (const char *filename);
47 void (*create_ws) (void);
48 } s_surf_model_description_t, *surf_model_description_t;
50 XBT_PUBLIC(void) update_model_description(s_surf_model_description_t * table,
53 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table,
56 /** \brief Action structure
57 * \ingroup SURF_actions
59 * Never create s_surf_action_t by yourself ! The actions are created
60 * on the fly when you call execute or communicate on a model.
62 * \see e_surf_action_state_t
64 typedef struct surf_action {
65 s_xbt_swag_hookup_t state_hookup;
67 double cost; /**< cost */
68 double priority; /**< priority (1.0 by default) */
69 double max_duration; /**< max_duration (may fluctuate until
70 the task is completed) */
71 double remains; /**< How much of that cost remains to
72 * be done in the currently running task */
73 double start; /**< start time */
74 double finish; /**< finish time : this is modified during the run
75 * and fluctuates until the task is completed */
76 void *data; /**< for your convenience */
78 surf_model_t model_type;
81 /** \brief Action states
82 * \ingroup SURF_actions
86 * \see surf_action_t, surf_action_state_t
89 SURF_ACTION_READY = 0, /**< Ready */
90 SURF_ACTION_RUNNING, /**< Running */
91 SURF_ACTION_FAILED, /**< Task Failure */
92 SURF_ACTION_DONE, /**< Completed */
93 SURF_ACTION_TO_FREE, /**< Action to free in next cleanup */
94 SURF_ACTION_NOT_IN_THE_SYSTEM
95 /**< Not in the system anymore. Why did you ask ? */
96 } e_surf_action_state_t;
98 /** \brief Action state sets
99 * \ingroup SURF_actions
101 * This structure contains some sets of actions.
102 * It provides a fast access to the actions in each state.
104 * \see surf_action_t, e_surf_action_state_t
106 typedef struct surf_action_state {
107 xbt_swag_t ready_action_set;
108 /**< Actions in state SURF_ACTION_READY */
109 xbt_swag_t running_action_set;
110 /**< Actions in state SURF_ACTION_RUNNING */
111 xbt_swag_t failed_action_set;
112 /**< Actions in state SURF_ACTION_FAILED */
113 xbt_swag_t done_action_set;
114 /**< Actions in state SURF_ACTION_DONE */
115 } s_surf_action_state_t, *surf_action_state_t;
117 /***************************/
118 /* Generic model object */
119 /***************************/
121 /** \brief Public data available on all models
122 * \ingroup SURF_models
124 * These functions are implemented by all models.
126 typedef struct surf_model_public {
127 s_surf_action_state_t states;
128 /**< Any living action on this model */
129 const char *(*get_resource_name) (void *resource_id);
130 /**< Return the name of a resource */
132 e_surf_action_state_t(*action_get_state) (surf_action_t action);
133 /**< Return the state of an action */
134 double (*action_get_start_time) (surf_action_t action);
135 /**< Return the start time of an action */
136 double (*action_get_finish_time) (surf_action_t action);
137 /**< Return the finish time of an action */
138 void (*action_use) (surf_action_t action);
139 /**< Set an action used */
140 int (*action_free) (surf_action_t action);
141 /**< Free an action */
142 void (*action_cancel) (surf_action_t action);
143 /**< Cancel a running action */
144 void (*action_recycle) (surf_action_t action);
145 /**< Recycle an action */
146 void (*action_change_state) (surf_action_t action,
147 /**< Change an action state*/
148 e_surf_action_state_t state);
149 void (*action_set_data) (surf_action_t action, void *data);
150 /**< Set the user data of an action */
151 void (*suspend) (surf_action_t action);
152 /**< Suspend an action */
153 void (*resume) (surf_action_t action);
154 /**< Resume a suspended action */
155 int (*is_suspended) (surf_action_t action);
156 /**< Return whether an action is suspended */
157 void (*set_max_duration) (surf_action_t action, double duration);
158 /**< Set the max duration of an action*/
159 void (*set_priority) (surf_action_t action, double priority);
160 /**< Set the priority of an action */
161 xbt_dict_t(*get_properties) (void *resource_id);
162 /**< Return the properties dictionary */
164 /**< Name of this model */
165 xbt_dict_t resource_set;
166 } s_surf_model_public_t, *surf_model_public_t;
168 /** \brief Private data available on all models
169 * \ingroup SURF_models
171 typedef struct surf_model_private *surf_model_private_t;
173 /** \brief Model datatype
174 * \ingroup SURF_models
176 * Generic data structure for a model. The workstations,
177 * the CPUs and the network links are examples of models.
179 typedef struct surf_model {
180 s_surf_model_public_t common_public;
181 surf_model_private_t common_private;
184 void surf_model_init(surf_model_t model);
185 void* surf_model_resource_by_name(void* model, const char *name);
186 #define surf_model_resource_set(model) (model)->common_public.resource_set
187 void surf_model_exit(surf_model_t model);
189 typedef struct surf_resource {
191 } s_surf_resource_t, *surf_resource_t;
193 /**************************************/
194 /* Implementations of model object */
195 /**************************************/
197 /** \brief Timer model extension public
198 * \ingroup SURF_model
200 * Additionnal functions specific to the timer model
202 typedef struct surf_timer_model_extension_public {
203 void (*set) (double date, void *function, void *arg);
204 int (*get) (void **function, void **arg);
205 } s_surf_timer_model_extension_public_t,
206 *surf_timer_model_extension_public_t;
208 /** \brief Timer model
209 * \ingroup SURF_models
211 typedef struct surf_timer_model {
212 s_surf_model_public_t common_public;
213 surf_model_private_t common_private;
214 surf_timer_model_extension_public_t extension_public;
215 } s_surf_timer_model_t, *surf_timer_model_t;
217 /** \brief The timer model
218 * \ingroup SURF_models
220 XBT_PUBLIC_DATA(surf_timer_model_t) surf_timer_model;
222 /** \brief Initializes the timer model
223 * \ingroup SURF_models
225 XBT_PUBLIC(void) surf_timer_model_init(const char *filename);
230 * \ingroup SURF_models
233 SURF_CPU_ON = 1, /**< Up & ready */
234 SURF_CPU_OFF = 0 /**< Down & broken */
235 } e_surf_cpu_state_t;
237 /** \brief CPU model extension public
238 * \ingroup SURF_models
240 * Public functions specific to the CPU model.
242 typedef struct surf_cpu_model_extension_public {
243 surf_action_t(*execute) (void *cpu, double size);
244 surf_action_t(*sleep) (void *cpu, double duration);
245 e_surf_cpu_state_t(*get_state) (void *cpu);
246 double (*get_speed) (void *cpu, double load);
247 double (*get_available_speed) (void *cpu);
248 } s_surf_cpu_model_extension_public_t,
249 *surf_cpu_model_extension_public_t;
251 /** \brief CPU model datatype
252 * \ingroup SURF_models
254 typedef struct surf_cpu_model {
255 s_surf_model_public_t common_public;
256 surf_model_private_t common_private;
257 surf_cpu_model_extension_public_t extension_public;
258 } s_surf_cpu_model_t, *surf_cpu_model_t;
260 /** \brief The CPU model
261 * \ingroup SURF_models
263 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model;
265 /** \brief Initializes the CPU model with the model Cas01
266 * \ingroup SURF_models
268 * This function is called by surf_workstation_model_init_CLM03
269 * so you shouldn't have to call it by yourself.
271 * \see surf_workstation_model_init_CLM03()
273 XBT_PUBLIC(void) surf_cpu_model_init_Cas01(const char *filename);
275 /** \brief The list of all available cpu model models
276 * \ingroup SURF_models
278 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
282 /** \brief Network model extension public
283 * \ingroup SURF_models
285 * Public functions specific to the network model
287 typedef struct surf_network_model_extension_public {
288 surf_action_t(*communicate) (void *src, void *dst, double size,
290 const void **(*get_route) (void *src, void *dst);
291 int (*get_route_size) (void *src, void *dst);
292 const char *(*get_link_name) (const void *link);
293 double (*get_link_bandwidth) (const void *link);
294 double (*get_link_latency) (const void *link);
295 int (*link_shared) (const void *link);
296 } s_surf_network_model_extension_public_t,
297 *surf_network_model_extension_public_t;
299 /** \brief Network model datatype
300 * \ingroup SURF_models
302 typedef struct surf_network_model {
303 s_surf_model_public_t common_public;
304 surf_model_private_t common_private;
305 surf_network_model_extension_public_t extension_public;
306 } s_surf_network_model_t, *surf_network_model_t;
308 XBT_PUBLIC(void) create_workstations(void);
310 /** \brief The network model
311 * \ingroup SURF_models
313 * When creating a new API on top on SURF, you shouldn't use the
314 * network model unless you know what you are doing. Only the workstation
315 * model should be accessed because depending on the platform model,
316 * the network model can be NULL.
318 XBT_PUBLIC_DATA(surf_network_model_t) surf_network_model;
320 /** \brief Initializes the platform with the network model 'LagrangeVelho'
321 * \ingroup SURF_models
322 * \param filename XML platform file name
324 * This model is proposed by Arnaud Legrand and Pedro Velho based on
325 * the results obtained with the GTNets simulator for onelink and
326 * dogbone sharing scenarios.
328 * \see surf_workstation_model_init_LegrandVelho()
330 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho(const char *filename);
332 /** \brief Initializes the platform with the network model 'Constant'
333 * \ingroup SURF_models
334 * \param filename XML platform file name
336 * In this model, the communication time between two network cards is
337 * constant, hence no need for a routing table. This is particularly
338 * usefull when simulating huge distributed algorithms where
339 * scalability is really an issue. This function is called in
340 * conjunction with surf_workstation_model_init_compound.
342 * \see surf_workstation_model_init_compound()
344 XBT_PUBLIC(void) surf_network_model_init_Constant(const char *filename);
346 /** \brief Initializes the platform with the network model CM02
347 * \ingroup SURF_models
348 * \param filename XML platform file name
350 * This function is called by surf_workstation_model_init_CLM03
351 * or by yourself only if you plan using surf_workstation_model_init_compound
353 * \see surf_workstation_model_init_CLM03()
355 XBT_PUBLIC(void) surf_network_model_init_CM02(const char *filename);
358 /** \brief Initializes the platform with the network model GTNETS
359 * \ingroup SURF_models
360 * \param filename XML platform file name
362 * This function is called by surf_workstation_model_init_GTNETS
363 * or by yourself only if you plan using surf_workstation_model_init_compound
365 * \see surf_workstation_model_init_GTNETS()
367 XBT_PUBLIC(void) surf_network_model_init_GTNETS(const char *filename);
370 /** \brief Initializes the platform with the network model Reno
371 * \ingroup SURF_models
372 * \param filename XML platform file name
374 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
377 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
378 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
380 * Call this function only if you plan using surf_workstation_model_init_compound.
383 XBT_PUBLIC(void) surf_network_model_init_Reno(const char *filename);
385 /** \brief Initializes the platform with the network model Reno2
386 * \ingroup SURF_models
387 * \param filename XML platform file name
389 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
392 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
393 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
395 * Call this function only if you plan using surf_workstation_model_init_compound.
398 XBT_PUBLIC(void) surf_network_model_init_Reno2(const char *filename);
400 /** \brief Initializes the platform with the network model Vegas
401 * \ingroup SURF_models
402 * \param filename XML platform file name
404 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent
405 * to the proportional fairness.
408 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
409 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
411 * Call this function only if you plan using surf_workstation_model_init_compound.
414 XBT_PUBLIC(void) surf_network_model_init_Vegas(const char *filename);
417 /** \brief Initializes the platform with the network model based on SDP
418 * \ingroup SURF_models
419 * \param filename XML platform file name
421 * This function implements the proportional fairness known as the maximization
426 * [TAG03]. Corinne Touati, Eitan Altman, and Jerome Galtier.
427 * Semi-definite programming approach for bandwidth allocation and routing in networks.
428 * Game Theory and Applications, 9:169-179, December 2003. Nova publisher.
430 * Call this function only if you plan using surf_workstation_model_init_compound.
432 XBT_PUBLIC(void) surf_network_model_init_SDP(const char *filename);
435 /** \brief The list of all available network model models
436 * \ingroup SURF_models
438 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_network_model_description[];
440 /** \brief Workstation model extension public
441 * \ingroup SURF_models
443 * Public functions specific to the workstation model.
445 typedef struct surf_workstation_model_extension_public {
446 surf_action_t(*execute) (void *workstation, double size); /**< Execute a computation amount on a workstation
447 and create the corresponding action */
448 surf_action_t(*sleep) (void *workstation, double duration); /**< Make a workstation sleep during a given duration */
449 e_surf_cpu_state_t(*get_state) (void *workstation); /**< Return the CPU state of a workstation */
450 double (*get_speed) (void *workstation, double load); /**< Return the speed of a workstation */
451 double (*get_available_speed) (void *workstation); /**< Return tha available speed of a workstation */
452 surf_action_t(*communicate) (void *workstation_src, /**< Execute a communication amount between two workstations */
453 void *workstation_dst, double size,
456 surf_action_t(*execute_parallel_task) (int workstation_nb, /**< Execute a parallel task on several workstations */
457 void **workstation_list,
458 double *computation_amount,
459 double *communication_amount,
460 double amount, double rate);
461 const void **(*get_route) (void *src, void *dst); /**< Return the network link list between two workstations */
462 int (*get_route_size) (void *src, void *dst); /**< Return the route size between two workstations */
463 const char *(*get_link_name) (const void *link); /**< Return the name of a network link */
464 double (*get_link_bandwidth) (const void *link); /**< Return the current bandwidth of a network link */
465 double (*get_link_latency) (const void *link); /**< Return the current latency of a network link */
466 int (*link_shared) (const void *link);
467 } s_surf_workstation_model_extension_public_t,
468 *surf_workstation_model_extension_public_t;
470 /** \brief Workstation model datatype.
471 * \ingroup SURF_models
474 typedef struct surf_workstation_model {
475 s_surf_model_public_t common_public;
476 surf_model_private_t common_private;
477 surf_workstation_model_extension_public_t extension_public;
478 } s_surf_workstation_model_t, *surf_workstation_model_t;
480 /** \brief The workstation model
481 * \ingroup SURF_models
483 * Note that when you create an API on top of SURF,
484 * the workstation model should be the only one you use
485 * because depending on the platform model, the network model and the CPU model
488 XBT_PUBLIC_DATA(surf_workstation_model_t) surf_workstation_model;
490 /** \brief Initializes the platform with a compound workstation model
491 * \ingroup SURF_models
492 * \param filename XML platform file name
494 * This function should be called after a cpu_model and a
495 * network_model have been set up.
498 XBT_PUBLIC(void) surf_workstation_model_init_compound(const char *filename);
500 /** \brief Initializes the platform with the workstation model CLM03
501 * \ingroup SURF_models
502 * \param filename XML platform file name
504 * This platform model seperates the workstation model and the network model.
505 * The workstation model will be initialized with the model CLM03, the network
506 * model with the model CM02 and the CPU model with the model Cas01.
507 * In future releases, some other network models will be implemented and will be
508 * combined with the workstation model CLM03.
510 * \see surf_workstation_model_init_KCCFLN05()
512 XBT_PUBLIC(void) surf_workstation_model_init_CLM03(const char *filename);
514 /** \brief Initializes the platform with the model KCCFLN05
515 * \ingroup SURF_models
516 * \param filename XML platform file name
518 * With this model, the workstations and the network are handled
519 * together. The network model is roughly the same as in CM02 but
520 * interference between computations and communications can be taken
521 * into account. This platform model is the default one for MSG and
525 XBT_PUBLIC(void) surf_workstation_model_init_KCCFLN05(const char *filename);
527 /** \brief Initializes the platform with the model KCCFLN05
528 * \ingroup SURF_models
529 * \param filename XML platform file name
531 * With this model, only parallel tasks can be used. Resource sharing
532 * is done by identifying bottlenecks and giving an equal share of
533 * the model to each action.
536 XBT_PUBLIC(void) surf_workstation_model_init_ptask_L07(const char *filename);
538 /** \brief The list of all available workstation model models
539 * \ingroup SURF_models
541 XBT_PUBLIC_DATA(s_surf_model_description_t)
542 surf_workstation_model_description[];
544 /** \brief The network links
545 * \ingroup SURF_models
547 * This dict contains all network links.
549 * \see workstation_set
551 XBT_PUBLIC_DATA(xbt_dict_t) link_set;
553 /** \brief The workstations
554 * \ingroup SURF_models
556 * This dict contains all workstations.
560 /*XBT_PUBLIC_DATA(xbt_dict_t) workstation_set; //KILLME
561 XBT_PUBLIC_DATA(xbt_dict_t) cpu_set; //KILLME*/
562 /** \brief List of initialized models
563 * \ingroup SURF_models
565 XBT_PUBLIC_DATA(xbt_dynar_t) model_list;
567 /*******************************************/
568 /*** SURF Globals **************************/
569 /*******************************************/
570 XBT_PUBLIC_DATA(xbt_cfg_t) _surf_cfg_set;
572 /** \brief Initialize SURF
573 * \ingroup SURF_simulation
574 * \param argc argument number
575 * \param argv arguments
577 * This function has to be called to initialize the common
578 * structures. Then you will have to create the environment by
579 * calling surf_timer_model_init() and
580 * e.g. surf_workstation_model_init_CLM03() or
581 * surf_workstation_model_init_KCCFLN05().
583 * \see surf_timer_model_init(), surf_workstation_model_init_CLM03(),
584 * surf_workstation_model_init_KCCFLN05(), surf_workstation_model_init_compound(), surf_exit()
586 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
588 /** \brief Initialize the used models.
590 * Must be called after the surf_init so that configuration infrastructure is created
591 * Must be called before parsing/creating the environment
592 * Must not be called within the initialization process so that the use get a chance to change the settings from
593 * its code between, say, MSG_init and MSG_create_environment using MSG_config
595 XBT_PUBLIC(void) surf_config_models_setup(const char *platform_file);
597 /** \brief create the elements of the models
599 * Must be called after parsing the platform file and before using any elements
601 XBT_PUBLIC(void) surf_config_models_create_elms(void);
603 /** \brief Finish simulation initialization
604 * \ingroup SURF_simulation
606 * This function must be called before the first call to surf_solve()
608 XBT_PUBLIC(void) surf_presolve(void);
610 /** \brief Performs a part of the simulation
611 * \ingroup SURF_simulation
612 * \return the elapsed time, or -1.0 if no event could be executed
614 * This function execute all possible events, update the action states
615 * and returns the time elapsed.
616 * When you call execute or communicate on a model, the corresponding actions
617 * are not executed immediately but only when you call surf_solve.
618 * Note that the returned elapsed time can be zero.
620 XBT_PUBLIC(double) surf_solve(void);
622 /** \brief Return the current time
623 * \ingroup SURF_simulation
625 * Return the current time in millisecond.
627 XBT_PUBLIC(double) surf_get_clock(void);
630 * \ingroup SURF_simulation
636 XBT_PUBLIC(void) surf_exit(void);
638 /* Prototypes of the functions that handle the properties */
639 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set; /* the prop set for the currently parsed element (also used in SIMIX) */
640 XBT_PUBLIC_DATA(void) parse_properties(void);
642 /* surf parse file related (public because called from a test suite) */
643 XBT_PUBLIC(void) parse_platform_file(const char *file);
645 /* Stores the sets */
646 XBT_PUBLIC_DATA(xbt_dict_t) set_list;
648 XBT_PUBLIC_DATA(void) manage_route(xbt_dict_t route_table,
649 const char *route_name, int action,
651 XBT_PUBLIC_DATA(int) route_action;
653 /* This is used by all models when creating the routing table while parsing */
654 XBT_PUBLIC_DATA(xbt_dict_t) route_table;
655 XBT_PUBLIC_DATA(xbt_dict_t) route_multi_table;
658 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
659 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
660 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_host_avail;
661 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_power;
662 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_avail;
663 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_bandwidth;
664 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_latency;
667 XBT_PUBLIC_DATA(double) get_cpu_power(const char *power);
671 #endif /* _SURF_SURF_H */