1 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
11 #include "xbt/dynar.h"
13 #include "xbt/graph.h"
16 #include "xbt/config.h"
17 #include "surf/datatypes.h"
19 #include "surf/surf_routing.h"
20 #include "simgrid/platf_interface.h"
23 /* Actions and models are highly connected structures... */
25 /* user-visible parameters */
26 extern double sg_tcp_gamma;
27 extern double sg_sender_gap;
28 extern double sg_latency_factor;
29 extern double sg_bandwidth_factor;
30 extern double sg_weight_S_parameter;
31 extern int sg_network_crosstraffic;
33 extern double sg_gtnets_jitter;
34 extern int sg_gtnets_jitter_seed;
36 extern xbt_dynar_t surf_path;
40 SURF_NETWORK_ELEMENT_NULL = 0, /* NULL */
41 SURF_NETWORK_ELEMENT_HOST, /* host type */
42 SURF_NETWORK_ELEMENT_ROUTER, /* router type */
43 SURF_NETWORK_ELEMENT_AS /* AS type */
44 } e_surf_network_element_type_t;
46 XBT_PUBLIC(e_surf_network_element_type_t)
47 routing_get_network_element_type(const char* name);
49 /** @Brief Specify that we use that action */
50 XBT_PUBLIC(void) surf_action_ref(surf_action_t action);
52 /** @brief Creates a new action.
54 * @param size The size is the one of the subtype you want to create
55 * @param cost initial value
56 * @param model to which model we should attach this action
57 * @param failed whether we should start this action in failed mode
59 XBT_PUBLIC(void *) surf_action_new(size_t size, double cost,
60 surf_model_t model, int failed);
62 /** \brief Resource model description
64 typedef struct surf_model_description {
66 const char *description;
67 void_f_void_t model_init_preparse;
68 } s_surf_model_description_t, *surf_model_description_t;
70 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table,
72 XBT_PUBLIC(void) model_help(const char *category,
73 s_surf_model_description_t * table);
75 enum heap_action_type{
82 /** \ingroup SURF_actions
83 * \brief Action structure
85 * Never create s_surf_action_t by yourself ! The actions are created
86 * on the fly when you call execute or communicate on a model.
88 * \see e_surf_action_state_t
90 typedef struct surf_action {
91 s_xbt_swag_hookup_t state_hookup;
93 double cost; /**< cost */
94 double priority; /**< priority (1.0 by default) */
95 double max_duration; /**< max_duration (may fluctuate until
96 the task is completed) */
97 double remains; /**< How much of that cost remains to
98 * be done in the currently running task */
99 #ifdef HAVE_LATENCY_BOUND_TRACKING
100 int latency_limited; /**< Set to 1 if is limited by latency, 0 otherwise */
103 double start; /**< start time */
104 double finish; /**< finish time : this is modified during the run
105 * and fluctuates until the task is completed */
106 void *data; /**< for your convenience */
108 surf_model_t model_type;
110 char *category; /**< tracing category for categorized resource utilization monitoring */
112 surf_file_t file; /**< surf_file_t for storage model */
116 typedef struct surf_action_lmm {
117 s_surf_action_t generic_action;
118 lmm_variable_t variable;
120 s_xbt_swag_hookup_t action_list_hookup;
124 enum heap_action_type hat;
125 } s_surf_action_lmm_t, *surf_action_lmm_t;
127 /** \ingroup SURF_actions
128 * \brief Action states
132 * \see surf_action_t, surf_action_state_t
135 SURF_ACTION_READY = 0, /**< Ready */
136 SURF_ACTION_RUNNING, /**< Running */
137 SURF_ACTION_FAILED, /**< Task Failure */
138 SURF_ACTION_DONE, /**< Completed */
139 SURF_ACTION_TO_FREE, /**< Action to free in next cleanup */
140 SURF_ACTION_NOT_IN_THE_SYSTEM
141 /**< Not in the system anymore. Why did you ask ? */
142 } e_surf_action_state_t;
144 /** \ingroup SURF_actions
145 * \brief Action state sets
147 * This structure contains some sets of actions.
148 * It provides a fast access to the actions in each state.
150 * \see surf_action_t, e_surf_action_state_t
152 typedef struct surf_action_state {
153 xbt_swag_t ready_action_set;
154 /**< Actions in state SURF_ACTION_READY */
155 xbt_swag_t running_action_set;
156 /**< Actions in state SURF_ACTION_RUNNING */
157 xbt_swag_t failed_action_set;
158 /**< Actions in state SURF_ACTION_FAILED */
159 xbt_swag_t done_action_set;
160 /**< Actions in state SURF_ACTION_DONE */
161 } s_surf_action_state_t, *surf_action_state_t;
163 /***************************/
164 /* Generic model object */
165 /***************************/
166 typedef struct s_routing_platf s_routing_platf_t, *routing_platf_t;
167 XBT_PUBLIC_DATA(routing_platf_t) routing_platf;
169 /*******************************************
170 * TUTORIAL: New model
171 * New model extension public
172 * Public functions specific to a New model.
174 typedef struct surf_new_model_extension_public {
175 surf_action_t(*fct) ();
176 void* (*create_resource) ();
177 } s_surf_model_extension_new_model_t;
178 /*******************************************/
180 /** \ingroup SURF_models
181 * \brief Private data available on all models
183 typedef struct surf_model_private *surf_model_private_t;
187 /** \ingroup SURF_models
188 * \brief CPU model extension public
190 * Public functions specific to the CPU model.
192 typedef struct surf_cpu_model_extension_public {
193 surf_action_t(*execute) (void *cpu, double size);
194 surf_action_t(*sleep) (void *cpu, double duration);
195 e_surf_resource_state_t(*get_state) (void *cpu);
196 int (*get_core) (void *cpu);
197 double (*get_speed) (void *cpu, double load);
198 double (*get_available_speed) (void *cpu);
199 void (*add_traces) (void);
200 } s_surf_model_extension_cpu_t;
204 /** \ingroup SURF_models
205 * \brief Network model extension public
207 * Public functions specific to the network model
209 typedef struct surf_network_model_extension_public {
210 surf_action_t (*communicate) (sg_routing_edge_t src,
211 sg_routing_edge_t dst,
212 double size, double rate);
213 xbt_dynar_t(*get_route) (void *src, void *dst); //FIXME: kill field? That is done by the routing nowadays
214 double (*get_link_bandwidth) (const void *link);
215 double (*get_link_latency) (const void *link);
216 int (*link_shared) (const void *link);
217 void (*add_traces) (void);
218 } s_surf_model_extension_network_t;
222 /** \ingroup SURF_models
223 * \brief Storage model extension public
225 * Public functions specific to the Storage model.
228 typedef struct surf_storage_model_extension_public {
229 surf_action_t(*open) (void *storage, const char* mount, const char* path);
230 surf_action_t(*close) (void *storage, surf_file_t fd);
231 surf_action_t(*read) (void *storage, size_t size, surf_file_t fd);
232 surf_action_t(*write) (void *storage, size_t size, surf_file_t fd);
233 surf_action_t(*stat) (void *storage, surf_file_t fd);
234 surf_action_t(*ls) (void *storage, const char *path);
235 } s_surf_model_extension_storage_t;
237 /** \ingroup SURF_models
238 * \brief Workstation model extension public
240 * Public functions specific to the workstation model.
242 typedef struct surf_workstation_model_extension_public {
243 surf_action_t(*execute) (void *workstation, double size); /**< Execute a computation amount on a workstation
244 and create the corresponding action */
245 surf_action_t(*sleep) (void *workstation, double duration); /**< Make a workstation sleep during a given duration */
246 e_surf_resource_state_t(*get_state) (void *workstation); /**< Return the CPU state of a workstation */
247 int (*get_core) (void *workstation);
248 double (*get_speed) (void *workstation, double load); /**< Return the speed of a workstation */
249 double (*get_available_speed) (void *workstation); /**< Return tha available speed of a workstation */
250 surf_action_t(*communicate) (void *workstation_src, /**< Execute a communication amount between two workstations */
251 void *workstation_dst, double size,
253 // FIXME: kill next field, which duplicates the routing
254 xbt_dynar_t(*get_route) (void *workstation_src, void *workstation_dst); /**< Get the list of links between two ws */
256 surf_action_t(*execute_parallel_task) (int workstation_nb, /**< Execute a parallel task on several workstations */
257 void **workstation_list,
258 double *computation_amount,
259 double *communication_amount,
261 double (*get_link_bandwidth) (const void *link); /**< Return the current bandwidth of a network link */
262 double (*get_link_latency) (const void *link); /**< Return the current latency of a network link */
263 surf_action_t(*open) (void *workstation, const char* storage,
265 surf_action_t(*close) (void *workstation, surf_file_t fd);
266 surf_action_t(*read) (void *workstation, size_t size, surf_file_t fd);
267 surf_action_t(*write) (void *workstation, size_t size, surf_file_t fd);
268 surf_action_t(*stat) (void *workstation, surf_file_t fd);
269 int(*unlink) (void *workstation, surf_file_t fd);
270 surf_action_t(*ls) (void *workstation, const char* mount, const char *path);
271 size_t (*get_size) (void *workstation, surf_file_t fd);
273 int (*link_shared) (const void *link);
274 xbt_dict_t(*get_properties) (const void *resource);
275 void (*add_traces) (void);
277 } s_surf_model_extension_workstation_t;
282 /** \ingroup SURF_models
283 * \brief Model datatype
285 * Generic data structure for a model. The workstations,
286 * the CPUs and the network links are examples of models.
288 typedef struct surf_model {
289 const char *name; /**< Name of this model */
290 s_surf_action_state_t states; /**< Any living action on this model */
292 e_surf_action_state_t(*action_state_get) (surf_action_t action);
293 /**< Return the state of an action */
294 void (*action_state_set) (surf_action_t action,
295 e_surf_action_state_t state);
296 /**< Change an action state*/
298 double (*action_get_start_time) (surf_action_t action); /**< Return the start time of an action */
299 double (*action_get_finish_time) (surf_action_t action); /**< Return the finish time of an action */
300 int (*action_unref) (surf_action_t action); /**< Specify that we don't use that action anymore. Returns true if the action was destroyed and false if someone still has references on it. */
301 void (*action_cancel) (surf_action_t action); /**< Cancel a running action */
302 void (*action_recycle) (surf_action_t action); /**< Recycle an action */
303 void (*action_data_set) (surf_action_t action, void *data); /**< Set the user data of an action */
304 void (*suspend) (surf_action_t action); /**< Suspend an action */
305 void (*resume) (surf_action_t action); /**< Resume a suspended action */
306 int (*is_suspended) (surf_action_t action); /**< Return whether an action is suspended */
307 void (*set_max_duration) (surf_action_t action, double duration); /**< Set the max duration of an action*/
308 void (*set_priority) (surf_action_t action, double priority); /**< Set the priority of an action */
310 void (*set_category) (surf_action_t action, const char *category); /**< Set the category of an action */
312 double (*get_remains) (surf_action_t action); /**< Get the remains of an action */
313 #ifdef HAVE_LATENCY_BOUND_TRACKING
314 int (*get_latency_limited) (surf_action_t action); /**< Return 1 if action is limited by latency, 0 otherwise */
317 void (*gap_remove) (surf_action_lmm_t action);
319 surf_model_private_t model_private;
322 s_surf_model_extension_cpu_t cpu;
323 s_surf_model_extension_network_t network;
324 s_surf_model_extension_storage_t storage;
325 s_surf_model_extension_workstation_t workstation;
326 /*******************************************/
327 /* TUTORIAL: New model */
328 s_surf_model_extension_new_model_t new_model;
329 /*******************************************/
333 surf_model_t surf_model_init(void);
334 void surf_model_exit(surf_model_t model);
336 static inline void *surf_cpu_resource_priv(const void *host) {
337 return xbt_lib_get_level((void *)host, SURF_CPU_LEVEL);
339 static inline void *surf_workstation_resource_priv(const void *host){
340 return xbt_lib_get_level((void *)host, SURF_WKS_LEVEL);
342 static inline void *surf_storage_resource_priv(const void *host){
343 return xbt_lib_get_level((void *)host, SURF_STORAGE_LEVEL);
346 static inline void *surf_cpu_resource_by_name(const char *name) {
347 return xbt_lib_get_elm_or_null(host_lib, name);
349 static inline void *surf_workstation_resource_by_name(const char *name){
350 return xbt_lib_get_elm_or_null(host_lib, name);
352 static inline void *surf_storage_resource_by_name(const char *name){
353 return xbt_lib_get_elm_or_null(storage_lib, name);
356 typedef struct surf_resource {
359 xbt_dict_t properties;
360 } s_surf_resource_t, *surf_resource_t;
363 * Resource which have a metric handled by a maxmin system
368 tmgr_trace_event_t event;
371 typedef struct surf_resource_lmm {
372 s_surf_resource_t generic_resource;
373 lmm_constraint_t constraint;
374 e_surf_resource_state_t state_current;
375 tmgr_trace_event_t state_event;
376 s_surf_metric_t power;
377 } s_surf_resource_lmm_t, *surf_resource_lmm_t;
379 /**************************************/
380 /* Implementations of model object */
381 /**************************************/
384 /** \ingroup SURF_models
385 * \brief The CPU model
387 XBT_PUBLIC_DATA(surf_model_t) surf_cpu_model;
389 /** \ingroup SURF_models
390 * \brief Initializes the CPU model with the model Cas01
392 * By default, this model uses the lazy optimization mechanism that
393 * relies on partial invalidation in LMM and a heap for lazy action update.
394 * You can change this behavior by setting the cpu/optim configuration
395 * variable to a different value.
397 * You shouldn't have to call it by yourself.
399 XBT_PUBLIC(void) surf_cpu_model_init_Cas01(void);
401 /** \ingroup SURF_models
402 * \brief Initializes the CPU model with trace integration [Deprecated]
404 * You shouldn't have to call it by yourself.
406 XBT_PUBLIC(void) surf_cpu_model_init_ti(void);
408 /** \ingroup SURF_models
409 * \brief The list of all available optimization modes (both for cpu and networks).
410 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
412 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
414 /** \ingroup SURF_models
415 * \brief The list of all available cpu model models
417 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
419 /**\brief create new host bypass the parser
424 /** \ingroup SURF_models
425 * \brief The network model
427 * When creating a new API on top on SURF, you shouldn't use the
428 * network model unless you know what you are doing. Only the workstation
429 * model should be accessed because depending on the platform model,
430 * the network model can be NULL.
432 XBT_PUBLIC_DATA(surf_model_t) surf_network_model;
434 /** \ingroup SURF_models
435 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
437 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud
438 * based on the model 'LV08' and different correction factors depending on the communication
439 * size (< 1KiB, < 64KiB, >= 64KiB).
440 * See comments in the code for more information.
442 * \see surf_workstation_model_init_SMPI()
444 XBT_PUBLIC(void) surf_network_model_init_SMPI(void);
446 /** \ingroup SURF_models
447 * \brief Initializes the platform with the network model 'LegrandVelho'
449 * This model is proposed by Arnaud Legrand and Pedro Velho based on
450 * the results obtained with the GTNets simulator for onelink and
451 * dogbone sharing scenarios. See comments in the code for more information.
453 * \see surf_workstation_model_init_LegrandVelho()
455 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho(void);
457 /** \ingroup SURF_models
458 * \brief Initializes the platform with the network model 'Constant'
460 * In this model, the communication time between two network cards is
461 * constant, hence no need for a routing table. This is particularly
462 * usefull when simulating huge distributed algorithms where
463 * scalability is really an issue. This function is called in
464 * conjunction with surf_workstation_model_init_compound.
466 * \see surf_workstation_model_init_compound()
468 XBT_PUBLIC(void) surf_network_model_init_Constant(void);
470 /** \ingroup SURF_models
471 * \brief Initializes the platform with the network model CM02
473 * You sould call this function by yourself only if you plan using
474 * surf_workstation_model_init_compound.
475 * See comments in the code for more information.
477 XBT_PUBLIC(void) surf_network_model_init_CM02(void);
480 /** \ingroup SURF_models
481 * \brief Initializes the platform with the network model GTNETS
482 * \param filename XML platform file name
484 * This function is called by surf_workstation_model_init_GTNETS
485 * or by yourself only if you plan using surf_workstation_model_init_compound
487 * \see surf_workstation_model_init_GTNETS()
489 XBT_PUBLIC(void) surf_network_model_init_GTNETS(void);
493 /** \ingroup SURF_models
494 * \brief Initializes the platform with the network model NS3
495 * \param filename XML platform file name
497 * This function is called by surf_workstation_model_init_NS3
498 * or by yourself only if you plan using surf_workstation_model_init_compound
500 * \see surf_workstation_model_init_NS3()
502 XBT_PUBLIC(void) surf_network_model_init_NS3(void);
505 /** \ingroup SURF_models
506 * \brief Initializes the platform with the network model Reno
507 * \param filename XML platform file name
509 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
512 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
513 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
515 * Call this function only if you plan using surf_workstation_model_init_compound.
518 XBT_PUBLIC(void) surf_network_model_init_Reno(void);
520 /** \ingroup SURF_models
521 * \brief Initializes the platform with the network model Reno2
522 * \param filename XML platform file name
524 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
527 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
528 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
530 * Call this function only if you plan using surf_workstation_model_init_compound.
533 XBT_PUBLIC(void) surf_network_model_init_Reno2(void);
535 /** \ingroup SURF_models
536 * \brief Initializes the platform with the network model Vegas
537 * \param filename XML platform file name
539 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent
540 * to the proportional fairness.
543 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
544 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
546 * Call this function only if you plan using surf_workstation_model_init_compound.
549 XBT_PUBLIC(void) surf_network_model_init_Vegas(void);
551 /** \ingroup SURF_models
552 * \brief The list of all available network model models
554 XBT_PUBLIC_DATA(s_surf_model_description_t)
555 surf_network_model_description[];
557 /** \ingroup SURF_models
558 * \brief The storage model
560 XBT_PUBLIC(void) surf_storage_model_init_default(void);
562 /** \ingroup SURF_models
563 * \brief The list of all available storage modes.
564 * This storage mode can be set using --cfg=storage/model:...
566 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
568 /** \ingroup SURF_models
569 * \brief The workstation model
571 * Note that when you create an API on top of SURF,
572 * the workstation model should be the only one you use
573 * because depending on the platform model, the network model and the CPU model
576 XBT_PUBLIC_DATA(surf_model_t) surf_workstation_model;
578 /** \ingroup SURF_models
579 * \brief Initializes the platform with a compound workstation model
581 * This function should be called after a cpu_model and a
582 * network_model have been set up.
585 XBT_PUBLIC(void) surf_workstation_model_init_compound(void);
587 /** \ingroup SURF_models
588 * \brief Initializes the platform with the current best network and cpu models at hand
590 * This platform model seperates the workstation model and the network model.
591 * The workstation model will be initialized with the model compound, the network
592 * model with the model LV08 (with cross traffic support) and the CPU model with
594 * Such model is subject to modification with warning in the ChangeLog so monitor it!
597 XBT_PUBLIC(void) surf_workstation_model_init_current_default(void);
599 /** \ingroup SURF_models
600 * \brief Initializes the platform with the model KCCFLN05
602 * With this model, only parallel tasks can be used. Resource sharing
603 * is done by identifying bottlenecks and giving an equal share of
604 * the model to each action.
607 XBT_PUBLIC(void) surf_workstation_model_init_ptask_L07(void);
609 /** \ingroup SURF_models
610 * \brief The list of all available workstation model models
612 XBT_PUBLIC_DATA(s_surf_model_description_t)
613 surf_workstation_model_description[];
615 /*******************************************
616 * TUTORIAL: New model
618 XBT_PUBLIC(void) surf_new_model_init_default(void);
619 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_new_model_description[];
620 /*******************************************/
622 /** \ingroup SURF_models
623 * \brief List of initialized models
625 XBT_PUBLIC_DATA(xbt_dynar_t) model_list;
627 /*******************************************/
628 /*** SURF Platform *************************/
629 /*******************************************/
630 typedef struct s_as *AS_t;
632 XBT_PUBLIC_DATA(AS_t) surf_AS_get_routing_root(void);
633 XBT_PUBLIC_DATA(const char *) surf_AS_get_name(AS_t as);
634 XBT_PUBLIC_DATA(xbt_dict_t) surf_AS_get_routing_sons(AS_t as);
635 XBT_PUBLIC_DATA(const char *) surf_AS_get_model(AS_t as);
636 XBT_PUBLIC_DATA(xbt_dynar_t) surf_AS_get_hosts(AS_t as);
638 /*******************************************/
639 /*** SURF Globals **************************/
640 /*******************************************/
642 /** \ingroup SURF_simulation
643 * \brief Initialize SURF
644 * \param argc argument number
645 * \param argv arguments
647 * This function has to be called to initialize the common
648 * structures. Then you will have to create the environment by
650 * e.g. surf_workstation_model_init_CM02()
652 * \see surf_workstation_model_init_CM02(), surf_workstation_model_init_compound(), surf_exit()
654 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
656 /** \ingroup SURF_simulation
657 * \brief Finish simulation initialization
659 * This function must be called before the first call to surf_solve()
661 XBT_PUBLIC(void) surf_presolve(void);
663 /** \ingroup SURF_simulation
664 * \brief Performs a part of the simulation
665 * \param max_date Maximum date to update the simulation to, or -1
666 * \return the elapsed time, or -1.0 if no event could be executed
668 * This function execute all possible events, update the action states
669 * and returns the time elapsed.
670 * When you call execute or communicate on a model, the corresponding actions
671 * are not executed immediately but only when you call surf_solve.
672 * Note that the returned elapsed time can be zero.
674 XBT_PUBLIC(double) surf_solve(double max_date);
676 /** \ingroup SURF_simulation
677 * \brief Return the current time
679 * Return the current time in millisecond.
681 XBT_PUBLIC(double) surf_get_clock(void);
683 /** \ingroup SURF_simulation
690 XBT_PUBLIC(void) surf_exit(void);
692 /* Prototypes of the functions that handle the properties */
693 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set; /* the prop set for the currently parsed element (also used in SIMIX) */
695 /* surf parse file related (public because called from a test suite) */
696 XBT_PUBLIC(void) parse_platform_file(const char *file);
698 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
699 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
700 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_host_avail;
701 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_power;
702 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_avail;
703 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_bandwidth;
704 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_latency;
707 XBT_PUBLIC(double) get_cpu_power(const char *power);
709 XBT_PUBLIC(xbt_dict_t) get_as_router_properties(const char* name);
711 int surf_get_nthreads(void);
712 void surf_set_nthreads(int nthreads);
714 void surf_watched_hosts(void);
717 * Returns the initial path. On Windows the initial path is
718 * the current directory for the current process in the other
719 * case the function returns "./" that represents the current
720 * directory on Unix/Linux platforms.
722 const char *__surf_get_initial_path(void);
724 /********** Tracing **********/
725 /* from surf_instr.c */
726 void TRACE_surf_action(surf_action_t surf_action, const char *category);
727 void TRACE_surf_alloc(void);
728 void TRACE_surf_release(void);
730 /* instr_routing.c */
731 void instr_routing_define_callbacks (void);
732 void instr_new_variable_type (const char *new_typename, const char *color);
733 void instr_new_user_variable_type (const char *father_type, const char *new_typename, const char *color);
734 void instr_new_user_state_type (const char *father_type, const char *new_typename);
735 void instr_new_value_for_user_state_type (const char *typename, const char *value, const char *color);
736 int instr_platform_traced (void);
737 xbt_graph_t instr_routing_platform_graph (void);
738 void instr_routing_platform_graph_export_graphviz (xbt_graph_t g, const char *filename);
741 #endif /* _SURF_SURF_H */