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, void* ptr, size_t size,
233 surf_action_t(*write) (void *storage, const void* ptr, size_t size,
235 surf_action_t(*stat) (void *storage, surf_file_t fd);
236 surf_action_t(*ls) (void *storage, const char *path);
237 } s_surf_model_extension_storage_t;
239 /** \ingroup SURF_models
240 * \brief Workstation model extension public
242 * Public functions specific to the workstation model.
244 typedef struct surf_workstation_model_extension_public {
245 surf_action_t(*execute) (void *workstation, double size); /**< Execute a computation amount on a workstation
246 and create the corresponding action */
247 surf_action_t(*sleep) (void *workstation, double duration); /**< Make a workstation sleep during a given duration */
248 e_surf_resource_state_t(*get_state) (void *workstation); /**< Return the CPU state of a workstation */
249 int (*get_core) (void *workstation);
250 double (*get_speed) (void *workstation, double load); /**< Return the speed of a workstation */
251 double (*get_available_speed) (void *workstation); /**< Return tha available speed of a workstation */
252 surf_action_t(*communicate) (void *workstation_src, /**< Execute a communication amount between two workstations */
253 void *workstation_dst, double size,
255 // FIXME: kill next field, which duplicates the routing
256 xbt_dynar_t(*get_route) (void *workstation_src, void *workstation_dst); /**< Get the list of links between two ws */
258 surf_action_t(*execute_parallel_task) (int workstation_nb, /**< Execute a parallel task on several workstations */
259 void **workstation_list,
260 double *computation_amount,
261 double *communication_amount,
263 double (*get_link_bandwidth) (const void *link); /**< Return the current bandwidth of a network link */
264 double (*get_link_latency) (const void *link); /**< Return the current latency of a network link */
265 surf_action_t(*open) (void *workstation, const char* storage,
267 surf_action_t(*close) (void *workstation, surf_file_t fd);
268 surf_action_t(*read) (void *workstation, void* ptr, size_t size,
270 surf_action_t(*write) (void *workstation, const void* ptr, size_t size,
272 surf_action_t(*stat) (void *workstation, surf_file_t fd);
273 int(*unlink) (void *workstation, surf_file_t fd);
274 surf_action_t(*ls) (void *workstation, const char* mount, const char *path);
275 size_t (*get_size) (void *workstation, surf_file_t fd);
277 int (*link_shared) (const void *link);
278 xbt_dict_t(*get_properties) (const void *resource);
279 void (*add_traces) (void);
281 } s_surf_model_extension_workstation_t;
286 /** \ingroup SURF_models
287 * \brief Model datatype
289 * Generic data structure for a model. The workstations,
290 * the CPUs and the network links are examples of models.
292 typedef struct surf_model {
293 const char *name; /**< Name of this model */
294 s_surf_action_state_t states; /**< Any living action on this model */
296 e_surf_action_state_t(*action_state_get) (surf_action_t action);
297 /**< Return the state of an action */
298 void (*action_state_set) (surf_action_t action,
299 e_surf_action_state_t state);
300 /**< Change an action state*/
302 double (*action_get_start_time) (surf_action_t action); /**< Return the start time of an action */
303 double (*action_get_finish_time) (surf_action_t action); /**< Return the finish time of an action */
304 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. */
305 void (*action_cancel) (surf_action_t action); /**< Cancel a running action */
306 void (*action_recycle) (surf_action_t action); /**< Recycle an action */
307 void (*action_data_set) (surf_action_t action, void *data); /**< Set the user data of an action */
308 void (*suspend) (surf_action_t action); /**< Suspend an action */
309 void (*resume) (surf_action_t action); /**< Resume a suspended action */
310 int (*is_suspended) (surf_action_t action); /**< Return whether an action is suspended */
311 void (*set_max_duration) (surf_action_t action, double duration); /**< Set the max duration of an action*/
312 void (*set_priority) (surf_action_t action, double priority); /**< Set the priority of an action */
314 void (*set_category) (surf_action_t action, const char *category); /**< Set the category of an action */
316 double (*get_remains) (surf_action_t action); /**< Get the remains of an action */
317 #ifdef HAVE_LATENCY_BOUND_TRACKING
318 int (*get_latency_limited) (surf_action_t action); /**< Return 1 if action is limited by latency, 0 otherwise */
321 void (*gap_remove) (surf_action_lmm_t action);
323 surf_model_private_t model_private;
326 s_surf_model_extension_cpu_t cpu;
327 s_surf_model_extension_network_t network;
328 s_surf_model_extension_storage_t storage;
329 s_surf_model_extension_workstation_t workstation;
330 /*******************************************/
331 /* TUTORIAL: New model */
332 s_surf_model_extension_new_model_t new_model;
333 /*******************************************/
337 surf_model_t surf_model_init(void);
338 void surf_model_exit(surf_model_t model);
340 static inline void *surf_cpu_resource_priv(const void *host) {
341 return xbt_lib_get_level((void *)host, SURF_CPU_LEVEL);
343 static inline void *surf_workstation_resource_priv(const void *host){
344 return xbt_lib_get_level((void *)host, SURF_WKS_LEVEL);
346 static inline void *surf_storage_resource_priv(const void *host){
347 return xbt_lib_get_level((void *)host, SURF_STORAGE_LEVEL);
350 static inline void *surf_cpu_resource_by_name(const char *name) {
351 return xbt_lib_get_elm_or_null(host_lib, name);
353 static inline void *surf_workstation_resource_by_name(const char *name){
354 return xbt_lib_get_elm_or_null(host_lib, name);
356 static inline void *surf_storage_resource_by_name(const char *name){
357 return xbt_lib_get_elm_or_null(storage_lib, name);
360 typedef struct surf_resource {
363 xbt_dict_t properties;
364 } s_surf_resource_t, *surf_resource_t;
367 * Resource which have a metric handled by a maxmin system
372 tmgr_trace_event_t event;
375 typedef struct surf_resource_lmm {
376 s_surf_resource_t generic_resource;
377 lmm_constraint_t constraint;
378 e_surf_resource_state_t state_current;
379 tmgr_trace_event_t state_event;
380 s_surf_metric_t power;
381 } s_surf_resource_lmm_t, *surf_resource_lmm_t;
383 /**************************************/
384 /* Implementations of model object */
385 /**************************************/
388 /** \ingroup SURF_models
389 * \brief The CPU model
391 XBT_PUBLIC_DATA(surf_model_t) surf_cpu_model;
393 /** \ingroup SURF_models
394 * \brief Initializes the CPU model with the model Cas01
396 * By default, this model uses the lazy optimization mechanism that
397 * relies on partial invalidation in LMM and a heap for lazy action update.
398 * You can change this behavior by setting the cpu/optim configuration
399 * variable to a different value.
401 * You shouldn't have to call it by yourself.
403 XBT_PUBLIC(void) surf_cpu_model_init_Cas01(void);
405 /** \ingroup SURF_models
406 * \brief Initializes the CPU model with trace integration [Deprecated]
408 * You shouldn't have to call it by yourself.
410 XBT_PUBLIC(void) surf_cpu_model_init_ti(void);
412 /** \ingroup SURF_models
413 * \brief The list of all available optimization modes (both for cpu and networks).
414 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
416 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
418 /** \ingroup SURF_models
419 * \brief The list of all available cpu model models
421 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
423 /**\brief create new host bypass the parser
428 /** \ingroup SURF_models
429 * \brief The network model
431 * When creating a new API on top on SURF, you shouldn't use the
432 * network model unless you know what you are doing. Only the workstation
433 * model should be accessed because depending on the platform model,
434 * the network model can be NULL.
436 XBT_PUBLIC_DATA(surf_model_t) surf_network_model;
438 /** \ingroup SURF_models
439 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
441 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud
442 * based on the model 'LV08' and different correction factors depending on the communication
443 * size (< 1KiB, < 64KiB, >= 64KiB).
444 * See comments in the code for more information.
446 * \see surf_workstation_model_init_SMPI()
448 XBT_PUBLIC(void) surf_network_model_init_SMPI(void);
450 /** \ingroup SURF_models
451 * \brief Initializes the platform with the network model 'LegrandVelho'
453 * This model is proposed by Arnaud Legrand and Pedro Velho based on
454 * the results obtained with the GTNets simulator for onelink and
455 * dogbone sharing scenarios. See comments in the code for more information.
457 * \see surf_workstation_model_init_LegrandVelho()
459 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho(void);
461 /** \ingroup SURF_models
462 * \brief Initializes the platform with the network model 'Constant'
464 * In this model, the communication time between two network cards is
465 * constant, hence no need for a routing table. This is particularly
466 * usefull when simulating huge distributed algorithms where
467 * scalability is really an issue. This function is called in
468 * conjunction with surf_workstation_model_init_compound.
470 * \see surf_workstation_model_init_compound()
472 XBT_PUBLIC(void) surf_network_model_init_Constant(void);
474 /** \ingroup SURF_models
475 * \brief Initializes the platform with the network model CM02
477 * You sould call this function by yourself only if you plan using
478 * surf_workstation_model_init_compound.
479 * See comments in the code for more information.
481 XBT_PUBLIC(void) surf_network_model_init_CM02(void);
484 /** \ingroup SURF_models
485 * \brief Initializes the platform with the network model GTNETS
486 * \param filename XML platform file name
488 * This function is called by surf_workstation_model_init_GTNETS
489 * or by yourself only if you plan using surf_workstation_model_init_compound
491 * \see surf_workstation_model_init_GTNETS()
493 XBT_PUBLIC(void) surf_network_model_init_GTNETS(void);
497 /** \ingroup SURF_models
498 * \brief Initializes the platform with the network model NS3
499 * \param filename XML platform file name
501 * This function is called by surf_workstation_model_init_NS3
502 * or by yourself only if you plan using surf_workstation_model_init_compound
504 * \see surf_workstation_model_init_NS3()
506 XBT_PUBLIC(void) surf_network_model_init_NS3(void);
509 /** \ingroup SURF_models
510 * \brief Initializes the platform with the network model Reno
511 * \param filename XML platform file name
513 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
516 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
517 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
519 * Call this function only if you plan using surf_workstation_model_init_compound.
522 XBT_PUBLIC(void) surf_network_model_init_Reno(void);
524 /** \ingroup SURF_models
525 * \brief Initializes the platform with the network model Reno2
526 * \param filename XML platform file name
528 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
531 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
532 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
534 * Call this function only if you plan using surf_workstation_model_init_compound.
537 XBT_PUBLIC(void) surf_network_model_init_Reno2(void);
539 /** \ingroup SURF_models
540 * \brief Initializes the platform with the network model Vegas
541 * \param filename XML platform file name
543 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent
544 * to the proportional fairness.
547 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
548 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
550 * Call this function only if you plan using surf_workstation_model_init_compound.
553 XBT_PUBLIC(void) surf_network_model_init_Vegas(void);
555 /** \ingroup SURF_models
556 * \brief The list of all available network model models
558 XBT_PUBLIC_DATA(s_surf_model_description_t)
559 surf_network_model_description[];
561 /** \ingroup SURF_models
562 * \brief The storage model
564 XBT_PUBLIC(void) surf_storage_model_init_default(void);
566 /** \ingroup SURF_models
567 * \brief The list of all available storage modes.
568 * This storage mode can be set using --cfg=storage/model:...
570 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
572 /** \ingroup SURF_models
573 * \brief The workstation model
575 * Note that when you create an API on top of SURF,
576 * the workstation model should be the only one you use
577 * because depending on the platform model, the network model and the CPU model
580 XBT_PUBLIC_DATA(surf_model_t) surf_workstation_model;
582 /** \ingroup SURF_models
583 * \brief Initializes the platform with a compound workstation model
585 * This function should be called after a cpu_model and a
586 * network_model have been set up.
589 XBT_PUBLIC(void) surf_workstation_model_init_compound(void);
591 /** \ingroup SURF_models
592 * \brief Initializes the platform with the current best network and cpu models at hand
594 * This platform model seperates the workstation model and the network model.
595 * The workstation model will be initialized with the model compound, the network
596 * model with the model LV08 (with cross traffic support) and the CPU model with
598 * Such model is subject to modification with warning in the ChangeLog so monitor it!
601 XBT_PUBLIC(void) surf_workstation_model_init_current_default(void);
603 /** \ingroup SURF_models
604 * \brief Initializes the platform with the model KCCFLN05
606 * With this model, only parallel tasks can be used. Resource sharing
607 * is done by identifying bottlenecks and giving an equal share of
608 * the model to each action.
611 XBT_PUBLIC(void) surf_workstation_model_init_ptask_L07(void);
613 /** \ingroup SURF_models
614 * \brief The list of all available workstation model models
616 XBT_PUBLIC_DATA(s_surf_model_description_t)
617 surf_workstation_model_description[];
619 /*******************************************
620 * TUTORIAL: New model
622 XBT_PUBLIC(void) surf_new_model_init_default(void);
623 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_new_model_description[];
624 /*******************************************/
626 /** \ingroup SURF_models
627 * \brief List of initialized models
629 XBT_PUBLIC_DATA(xbt_dynar_t) model_list;
631 /*******************************************/
632 /*** SURF Platform *************************/
633 /*******************************************/
634 typedef struct s_as *AS_t;
636 XBT_PUBLIC_DATA(AS_t) surf_AS_get_routing_root(void);
637 XBT_PUBLIC_DATA(const char *) surf_AS_get_name(AS_t as);
638 XBT_PUBLIC_DATA(xbt_dict_t) surf_AS_get_routing_sons(AS_t as);
639 XBT_PUBLIC_DATA(const char *) surf_AS_get_model(AS_t as);
640 XBT_PUBLIC_DATA(xbt_dynar_t) surf_AS_get_hosts(AS_t as);
642 /*******************************************/
643 /*** SURF Globals **************************/
644 /*******************************************/
646 /** \ingroup SURF_simulation
647 * \brief Initialize SURF
648 * \param argc argument number
649 * \param argv arguments
651 * This function has to be called to initialize the common
652 * structures. Then you will have to create the environment by
654 * e.g. surf_workstation_model_init_CM02()
656 * \see surf_workstation_model_init_CM02(), surf_workstation_model_init_compound(), surf_exit()
658 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
660 /** \ingroup SURF_simulation
661 * \brief Finish simulation initialization
663 * This function must be called before the first call to surf_solve()
665 XBT_PUBLIC(void) surf_presolve(void);
667 /** \ingroup SURF_simulation
668 * \brief Performs a part of the simulation
669 * \param max_date Maximum date to update the simulation to, or -1
670 * \return the elapsed time, or -1.0 if no event could be executed
672 * This function execute all possible events, update the action states
673 * and returns the time elapsed.
674 * When you call execute or communicate on a model, the corresponding actions
675 * are not executed immediately but only when you call surf_solve.
676 * Note that the returned elapsed time can be zero.
678 XBT_PUBLIC(double) surf_solve(double max_date);
680 /** \ingroup SURF_simulation
681 * \brief Return the current time
683 * Return the current time in millisecond.
685 XBT_PUBLIC(double) surf_get_clock(void);
687 /** \ingroup SURF_simulation
694 XBT_PUBLIC(void) surf_exit(void);
696 /* Prototypes of the functions that handle the properties */
697 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set; /* the prop set for the currently parsed element (also used in SIMIX) */
699 /* surf parse file related (public because called from a test suite) */
700 XBT_PUBLIC(void) parse_platform_file(const char *file);
702 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
703 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
704 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_host_avail;
705 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_power;
706 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_avail;
707 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_bandwidth;
708 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_latency;
711 XBT_PUBLIC(double) get_cpu_power(const char *power);
713 XBT_PUBLIC(xbt_dict_t) get_as_router_properties(const char* name);
715 int surf_get_nthreads(void);
716 void surf_set_nthreads(int nthreads);
718 void surf_watched_hosts(void);
721 * Returns the initial path. On Windows the initial path is
722 * the current directory for the current process in the other
723 * case the function returns "./" that represents the current
724 * directory on Unix/Linux platforms.
726 const char *__surf_get_initial_path(void);
728 /********** Tracing **********/
729 /* from surf_instr.c */
730 void TRACE_surf_action(surf_action_t surf_action, const char *category);
731 void TRACE_surf_alloc(void);
732 void TRACE_surf_release(void);
734 /* instr_routing.c */
735 void instr_routing_define_callbacks (void);
736 void instr_new_variable_type (const char *new_typename, const char *color);
737 void instr_new_user_variable_type (const char *father_type, const char *new_typename, const char *color);
738 void instr_new_user_state_type (const char *father_type, const char *new_typename);
739 void instr_new_value_for_user_state_type (const char *typename, const char *value, const char *color);
740 int instr_platform_traced (void);
741 xbt_graph_t instr_routing_platform_graph (void);
742 void instr_routing_platform_graph_export_graphviz (xbt_graph_t g, const char *filename);
745 #endif /* _SURF_SURF_H */