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"
14 #include "xbt/file_stat.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_maxmin_selective_update;
32 extern int sg_network_crosstraffic;
34 extern double sg_gtnets_jitter;
35 extern int sg_gtnets_jitter_seed;
37 extern xbt_dynar_t surf_path;
41 SURF_NETWORK_ELEMENT_NULL = 0, /* NULL */
42 SURF_NETWORK_ELEMENT_HOST, /* host type */
43 SURF_NETWORK_ELEMENT_ROUTER, /* router type */
44 SURF_NETWORK_ELEMENT_AS /* AS type */
45 } e_surf_network_element_type_t;
47 XBT_PUBLIC(e_surf_network_element_type_t)
48 routing_get_network_element_type(const char* name);
50 /** @Brief Specify that we use that action */
51 XBT_PUBLIC(void) surf_action_ref(surf_action_t action);
53 /** @brief Creates a new action.
55 * @param size The size is the one of the subtype you want to create
56 * @param cost initial value
57 * @param model to which model we should attach this action
58 * @param failed whether we should start this action in failed mode
60 XBT_PUBLIC(void *) surf_action_new(size_t size, double cost,
61 surf_model_t model, int failed);
63 /** \brief Resource model description
65 typedef struct surf_model_description {
67 const char *description;
68 void_f_void_t model_init_preparse;
69 } s_surf_model_description_t, *surf_model_description_t;
71 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table,
73 XBT_PUBLIC(void) model_help(const char *category,
74 s_surf_model_description_t * table);
76 enum heap_action_type{
83 /** \ingroup SURF_actions
84 * \brief Action structure
86 * Never create s_surf_action_t by yourself ! The actions are created
87 * on the fly when you call execute or communicate on a model.
89 * \see e_surf_action_state_t
91 typedef struct surf_action {
92 s_xbt_swag_hookup_t state_hookup;
94 double cost; /**< cost */
95 double priority; /**< priority (1.0 by default) */
96 double max_duration; /**< max_duration (may fluctuate until
97 the task is completed) */
98 double remains; /**< How much of that cost remains to
99 * be done in the currently running task */
100 #ifdef HAVE_LATENCY_BOUND_TRACKING
101 int latency_limited; /**< Set to 1 if is limited by latency, 0 otherwise */
104 double start; /**< start time */
105 double finish; /**< finish time : this is modified during the run
106 * and fluctuates until the task is completed */
107 void *data; /**< for your convenience */
109 surf_model_t model_type;
111 char *category; /**< tracing category for categorized resource utilization monitoring */
113 surf_file_t file; /**< surf_file_t for storage model */
114 s_file_stat_t stat; /**< surf_file_t for storage model */
118 typedef struct surf_action_lmm {
119 s_surf_action_t generic_action;
120 lmm_variable_t variable;
122 s_xbt_swag_hookup_t action_list_hookup;
126 enum heap_action_type hat;
127 } s_surf_action_lmm_t, *surf_action_lmm_t;
129 /** \ingroup SURF_actions
130 * \brief Action states
134 * \see surf_action_t, surf_action_state_t
137 SURF_ACTION_READY = 0, /**< Ready */
138 SURF_ACTION_RUNNING, /**< Running */
139 SURF_ACTION_FAILED, /**< Task Failure */
140 SURF_ACTION_DONE, /**< Completed */
141 SURF_ACTION_TO_FREE, /**< Action to free in next cleanup */
142 SURF_ACTION_NOT_IN_THE_SYSTEM
143 /**< Not in the system anymore. Why did you ask ? */
144 } e_surf_action_state_t;
146 /** \ingroup SURF_actions
147 * \brief Action state sets
149 * This structure contains some sets of actions.
150 * It provides a fast access to the actions in each state.
152 * \see surf_action_t, e_surf_action_state_t
154 typedef struct surf_action_state {
155 xbt_swag_t ready_action_set;
156 /**< Actions in state SURF_ACTION_READY */
157 xbt_swag_t running_action_set;
158 /**< Actions in state SURF_ACTION_RUNNING */
159 xbt_swag_t failed_action_set;
160 /**< Actions in state SURF_ACTION_FAILED */
161 xbt_swag_t done_action_set;
162 /**< Actions in state SURF_ACTION_DONE */
163 } s_surf_action_state_t, *surf_action_state_t;
165 /***************************/
166 /* Generic model object */
167 /***************************/
168 typedef struct s_routing_platf s_routing_platf_t, *routing_platf_t;
169 XBT_PUBLIC_DATA(routing_platf_t) routing_platf;
171 /*******************************************
172 * TUTORIAL: New model
173 * New model extension public
174 * Public functions specific to a New model.
176 typedef struct surf_new_model_extension_public {
177 surf_action_t(*fct) ();
178 void* (*create_resource) ();
179 } s_surf_model_extension_new_model_t;
180 /*******************************************/
182 /** \ingroup SURF_models
183 * \brief Private data available on all models
185 typedef struct surf_model_private *surf_model_private_t;
189 /** \ingroup SURF_models
190 * \brief CPU model extension public
192 * Public functions specific to the CPU model.
194 typedef struct surf_cpu_model_extension_public {
195 surf_action_t(*execute) (void *cpu, double size);
196 surf_action_t(*sleep) (void *cpu, double duration);
197 e_surf_resource_state_t(*get_state) (void *cpu);
198 double (*get_speed) (void *cpu, double load);
199 double (*get_available_speed) (void *cpu);
200 void (*add_traces) (void);
201 } s_surf_model_extension_cpu_t;
205 /** \ingroup SURF_models
206 * \brief Network model extension public
208 * Public functions specific to the network model
210 typedef struct surf_network_model_extension_public {
211 surf_action_t (*communicate) (sg_routing_edge_t src,
212 sg_routing_edge_t dst,
213 double size, double rate);
214 xbt_dynar_t(*get_route) (void *src, void *dst); //FIXME: kill field? That is done by the routing nowadays
215 double (*get_link_bandwidth) (const void *link);
216 double (*get_link_latency) (const void *link);
217 int (*link_shared) (const void *link);
218 void (*add_traces) (void);
219 } s_surf_model_extension_network_t;
223 /** \ingroup SURF_models
224 * \brief Storage model extension public
226 * Public functions specific to the Storage model.
229 typedef struct surf_storage_model_extension_public {
230 surf_action_t(*open) (void *storage, const char* mount, const char* path, const char* mode);
231 surf_action_t(*close) (void *storage, surf_file_t fp);
232 surf_action_t(*read) (void *storage, void* ptr, double size, size_t nmemb, surf_file_t stream);
233 surf_action_t(*write) (void *storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream);
234 surf_action_t(*stat) (void *storage, surf_file_t stream);
235 surf_action_t(*unlink) (void *storage, surf_file_t stream);
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 double (*get_speed) (void *workstation, double load); /**< Return the speed of a workstation */
250 double (*get_available_speed) (void *workstation); /**< Return tha available speed of a workstation */
251 surf_action_t(*communicate) (void *workstation_src, /**< Execute a communication amount between two workstations */
252 void *workstation_dst, double size,
254 // FIXME: kill next field, which duplicates the routing
255 xbt_dynar_t(*get_route) (void *workstation_src, void *workstation_dst); /**< Get the list of links between two ws */
257 surf_action_t(*execute_parallel_task) (int workstation_nb, /**< Execute a parallel task on several workstations */
258 void **workstation_list,
259 double *computation_amount,
260 double *communication_amount,
262 double (*get_link_bandwidth) (const void *link); /**< Return the current bandwidth of a network link */
263 double (*get_link_latency) (const void *link); /**< Return the current latency of a network link */
264 surf_action_t(*open) (void *workstation, const char* storage, const char* path, const char* mode);
265 surf_action_t(*close) (void *workstation, surf_file_t fp);
266 surf_action_t(*read) (void *workstation, void* ptr, size_t size, size_t nmemb, surf_file_t stream);
267 surf_action_t(*write) (void *workstation, const void* ptr, size_t size, size_t nmemb, surf_file_t stream);
268 surf_action_t(*stat) (void *workstation, surf_file_t stream);
269 surf_action_t(*unlink) (void *workstation, surf_file_t stream);
270 surf_action_t(*ls) (void *workstation, const char* mount, const char *path);
272 int (*link_shared) (const void *link);
273 xbt_dict_t(*get_properties) (const void *resource);
274 void (*add_traces) (void);
276 } s_surf_model_extension_workstation_t;
281 /** \ingroup SURF_models
282 * \brief Model datatype
284 * Generic data structure for a model. The workstations,
285 * the CPUs and the network links are examples of models.
287 typedef struct surf_model {
288 const char *name; /**< Name of this model */
289 s_surf_action_state_t states; /**< Any living action on this model */
291 e_surf_action_state_t(*action_state_get) (surf_action_t action);
292 /**< Return the state of an action */
293 void (*action_state_set) (surf_action_t action,
294 e_surf_action_state_t state);
295 /**< Change an action state*/
297 double (*action_get_start_time) (surf_action_t action); /**< Return the start time of an action */
298 double (*action_get_finish_time) (surf_action_t action); /**< Return the finish time of an action */
299 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. */
300 void (*action_cancel) (surf_action_t action); /**< Cancel a running action */
301 void (*action_recycle) (surf_action_t action); /**< Recycle an action */
302 void (*action_data_set) (surf_action_t action, void *data); /**< Set the user data of an action */
303 void (*suspend) (surf_action_t action); /**< Suspend an action */
304 void (*resume) (surf_action_t action); /**< Resume a suspended action */
305 int (*is_suspended) (surf_action_t action); /**< Return whether an action is suspended */
306 void (*set_max_duration) (surf_action_t action, double duration); /**< Set the max duration of an action*/
307 void (*set_priority) (surf_action_t action, double priority); /**< Set the priority of an action */
309 void (*set_category) (surf_action_t action, const char *category); /**< Set the category of an action */
311 double (*get_remains) (surf_action_t action); /**< Get the remains of an action */
312 #ifdef HAVE_LATENCY_BOUND_TRACKING
313 int (*get_latency_limited) (surf_action_t action); /**< Return 1 if action is limited by latency, 0 otherwise */
316 void (*gap_remove) (surf_action_lmm_t action);
318 surf_model_private_t model_private;
321 s_surf_model_extension_cpu_t cpu;
322 s_surf_model_extension_network_t network;
323 s_surf_model_extension_storage_t storage;
324 s_surf_model_extension_workstation_t workstation;
325 /*******************************************/
326 /* TUTORIAL: New model */
327 s_surf_model_extension_new_model_t new_model;
328 /*******************************************/
332 surf_model_t surf_model_init(void);
333 void surf_model_exit(surf_model_t model);
335 static inline void *surf_cpu_resource_by_name(const char *name) {
336 return xbt_lib_get_or_null(host_lib, name, SURF_CPU_LEVEL);
338 static inline void *surf_workstation_resource_by_name(const char *name){
339 return xbt_lib_get_or_null(host_lib, name, SURF_WKS_LEVEL);
341 static inline void *surf_storage_resource_by_name(const char *name){
342 return xbt_lib_get_or_null(storage_lib, name, SURF_STORAGE_LEVEL);
345 typedef struct surf_resource {
348 xbt_dict_t properties;
349 } s_surf_resource_t, *surf_resource_t;
352 * Resource which have a metric handled by a maxmin system
357 tmgr_trace_event_t event;
360 typedef struct surf_resource_lmm {
361 s_surf_resource_t generic_resource;
362 lmm_constraint_t constraint;
363 e_surf_resource_state_t state_current;
364 tmgr_trace_event_t state_event;
365 s_surf_metric_t power;
366 } s_surf_resource_lmm_t, *surf_resource_lmm_t;
368 /**************************************/
369 /* Implementations of model object */
370 /**************************************/
373 /** \ingroup SURF_models
374 * \brief The CPU model
376 XBT_PUBLIC_DATA(surf_model_t) surf_cpu_model;
378 /** \ingroup SURF_models
379 * \brief Initializes the CPU model with the model Cas01
381 * By default, this model uses the lazy optimization mechanism that
382 * relies on partial invalidation in LMM and a heap for lazy action update.
383 * You can change this behavior by setting the cpu/optim configuration
384 * variable to a different value.
386 * This function is called by surf_workstation_model_init_CLM03
387 * so you shouldn't have to call it by yourself.
389 * \see surf_workstation_model_init_CLM03()
391 XBT_PUBLIC(void) surf_cpu_model_init_Cas01(void);
393 /** \ingroup SURF_models
394 * \brief Initializes the CPU model with trace integration [Deprecated]
396 * You shouldn't have to call it by yourself.
397 * \see surf_workstation_model_init_CLM03()
399 XBT_PUBLIC(void) surf_cpu_model_init_ti(void);
401 /** \brief This function call the share resources function needed
404 XBT_PUBLIC(double) generic_share_resources(double now);
406 /** \brief This function call the update action state function needed
409 XBT_PUBLIC(void) generic_update_actions_state(double now, double delta);
411 /** \ingroup SURF_models
412 * \brief The list of all available optimization modes (both for cpu and networks).
413 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
415 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
417 /** \ingroup SURF_models
418 * \brief The list of all available cpu model models
420 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
422 XBT_PUBLIC(void) create_workstations(void);
424 /**\brief create new host bypass the parser
429 /** \ingroup SURF_models
430 * \brief The network model
432 * When creating a new API on top on SURF, you shouldn't use the
433 * network model unless you know what you are doing. Only the workstation
434 * model should be accessed because depending on the platform model,
435 * the network model can be NULL.
437 XBT_PUBLIC_DATA(surf_model_t) surf_network_model;
439 /** \ingroup SURF_models
440 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
442 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud
443 * based on the model 'LV08' and different correction factors depending on the communication
444 * size (< 1KiB, < 64KiB, >= 64KiB).
445 * See comments in the code for more information.
447 * \see surf_workstation_model_init_SMPI()
449 XBT_PUBLIC(void) surf_network_model_init_SMPI(void);
451 /** \ingroup SURF_models
452 * \brief Initializes the platform with the network model 'LegrandVelho'
454 * This model is proposed by Arnaud Legrand and Pedro Velho based on
455 * the results obtained with the GTNets simulator for onelink and
456 * dogbone sharing scenarios. See comments in the code for more information.
458 * \see surf_workstation_model_init_LegrandVelho()
460 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho(void);
462 /** \ingroup SURF_models
463 * \brief Initializes the platform with the network model 'Constant'
465 * In this model, the communication time between two network cards is
466 * constant, hence no need for a routing table. This is particularly
467 * usefull when simulating huge distributed algorithms where
468 * scalability is really an issue. This function is called in
469 * conjunction with surf_workstation_model_init_compound.
471 * \see surf_workstation_model_init_compound()
473 XBT_PUBLIC(void) surf_network_model_init_Constant(void);
475 /** \ingroup SURF_models
476 * \brief Initializes the platform with the network model CM02
478 * This function is called by surf_workstation_model_init_CLM03
479 * or by yourself only if you plan using surf_workstation_model_init_compound
480 * See comments in the code for more information.
482 * \see surf_workstation_model_init_CLM03()
484 XBT_PUBLIC(void) surf_network_model_init_CM02(void);
487 * brief initialize the the network model bypassing the XML parser
489 XBT_PUBLIC(void) surf_network_model_init_bypass(const char *id,
494 /** \ingroup SURF_models
495 * \brief Initializes the platform with the network model GTNETS
496 * \param filename XML platform file name
498 * This function is called by surf_workstation_model_init_GTNETS
499 * or by yourself only if you plan using surf_workstation_model_init_compound
501 * \see surf_workstation_model_init_GTNETS()
503 XBT_PUBLIC(void) surf_network_model_init_GTNETS(void);
507 /** \ingroup SURF_models
508 * \brief Initializes the platform with the network model NS3
509 * \param filename XML platform file name
511 * This function is called by surf_workstation_model_init_NS3
512 * or by yourself only if you plan using surf_workstation_model_init_compound
514 * \see surf_workstation_model_init_NS3()
516 XBT_PUBLIC(void) surf_network_model_init_NS3(void);
519 /** \ingroup SURF_models
520 * \brief Initializes the platform with the network model Reno
521 * \param filename XML platform file name
523 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
526 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
527 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
529 * Call this function only if you plan using surf_workstation_model_init_compound.
532 XBT_PUBLIC(void) surf_network_model_init_Reno(void);
534 /** \ingroup SURF_models
535 * \brief Initializes the platform with the network model Reno2
536 * \param filename XML platform file name
538 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
541 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
542 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
544 * Call this function only if you plan using surf_workstation_model_init_compound.
547 XBT_PUBLIC(void) surf_network_model_init_Reno2(void);
549 /** \ingroup SURF_models
550 * \brief Initializes the platform with the network model Vegas
551 * \param filename XML platform file name
553 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent
554 * to the proportional fairness.
557 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
558 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
560 * Call this function only if you plan using surf_workstation_model_init_compound.
563 XBT_PUBLIC(void) surf_network_model_init_Vegas(void);
565 /** \ingroup SURF_models
566 * \brief The list of all available network model models
568 XBT_PUBLIC_DATA(s_surf_model_description_t)
569 surf_network_model_description[];
571 /** \ingroup SURF_models
572 * \brief The storage model
574 XBT_PUBLIC(void) surf_storage_model_init_default(void);
576 /** \ingroup SURF_models
577 * \brief The list of all available storage modes.
578 * This storage mode can be set using --cfg=storage/model:...
580 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
582 /** \ingroup SURF_models
583 * \brief The workstation model
585 * Note that when you create an API on top of SURF,
586 * the workstation model should be the only one you use
587 * because depending on the platform model, the network model and the CPU model
590 XBT_PUBLIC_DATA(surf_model_t) surf_workstation_model;
592 /** \ingroup SURF_models
593 * \brief Initializes the platform with a compound workstation model
595 * This function should be called after a cpu_model and a
596 * network_model have been set up.
599 XBT_PUBLIC(void) surf_workstation_model_init_compound(void);
601 /** \ingroup SURF_models
602 * \brief Initializes the platform with the current best network and cpu models at hand
604 * This platform model seperates the workstation model and the network model.
605 * The workstation model will be initialized with the model compound, the network
606 * model with the model LV08 (with cross traffic support) and the CPU model with
608 * Such model is subject to modification with warning in the ChangeLog so monitor it!
611 XBT_PUBLIC(void) surf_workstation_model_init_current_default(void);
613 /** \ingroup SURF_models
614 * \brief Initializes the platform with the workstation model CLM03
616 * This platform model seperates the workstation model and the network model.
617 * The workstation model will be initialized with the model CLM03, the network
618 * model with the model CM02 and the CPU model with the model Cas01.
619 * In future releases, some other network models will be implemented and will be
620 * combined with the workstation model CLM03.
623 XBT_PUBLIC(void) surf_workstation_model_init_CLM03(void);
625 /** \ingroup SURF_models
626 * \brief Initializes the platform with the model KCCFLN05
628 * With this model, only parallel tasks can be used. Resource sharing
629 * is done by identifying bottlenecks and giving an equal share of
630 * the model to each action.
633 XBT_PUBLIC(void) surf_workstation_model_init_ptask_L07(void);
635 /** \ingroup SURF_models
636 * \brief The list of all available workstation model models
638 XBT_PUBLIC_DATA(s_surf_model_description_t)
639 surf_workstation_model_description[];
641 /*******************************************
642 * TUTORIAL: New model
644 XBT_PUBLIC(void) surf_new_model_init_default(void);
645 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_new_model_description[];
646 /*******************************************/
648 /** \ingroup SURF_models
649 * \brief List of initialized models
651 XBT_PUBLIC_DATA(xbt_dynar_t) model_list;
653 /*******************************************/
654 /*** SURF Globals **************************/
655 /*******************************************/
657 /** \ingroup SURF_simulation
658 * \brief Initialize SURF
659 * \param argc argument number
660 * \param argv arguments
662 * This function has to be called to initialize the common
663 * structures. Then you will have to create the environment by
665 * e.g. surf_workstation_model_init_CLM03()
667 * \see surf_workstation_model_init_CLM03(), surf_workstation_model_init_compound(), surf_exit()
669 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
671 /** \ingroup SURF_simulation
672 * \brief Finish simulation initialization
674 * This function must be called before the first call to surf_solve()
676 XBT_PUBLIC(void) surf_presolve(void);
678 /** \ingroup SURF_simulation
679 * \brief Performs a part of the simulation
680 * \param max_date Maximum date to update the simulation to, or -1
681 * \return the elapsed time, or -1.0 if no event could be executed
683 * This function execute all possible events, update the action states
684 * and returns the time elapsed.
685 * When you call execute or communicate on a model, the corresponding actions
686 * are not executed immediately but only when you call surf_solve.
687 * Note that the returned elapsed time can be zero.
689 XBT_PUBLIC(double) surf_solve(double max_date);
691 /** \ingroup SURF_simulation
692 * \brief Return the current time
694 * Return the current time in millisecond.
696 XBT_PUBLIC(double) surf_get_clock(void);
698 /** \ingroup SURF_simulation
705 XBT_PUBLIC(void) surf_exit(void);
707 /* Prototypes of the functions that handle the properties */
708 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set; /* the prop set for the currently parsed element (also used in SIMIX) */
709 XBT_PUBLIC(void) parse_properties(void);
711 /* surf parse file related (public because called from a test suite) */
712 XBT_PUBLIC(void) parse_platform_file(const char *file);
714 /* Stores the sets */
715 XBT_PUBLIC_DATA(xbt_dict_t) set_list;
717 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
718 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
719 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_host_avail;
720 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_power;
721 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_avail;
722 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_bandwidth;
723 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_latency;
726 XBT_PUBLIC(double) get_cpu_power(const char *power);
728 XBT_PUBLIC(xbt_dict_t) get_as_router_properties(const char* name);
730 int surf_get_nthreads(void);
731 void surf_set_nthreads(int nthreads);
733 void surf_watched_hosts(void);
736 * Returns the initial path. On Windows the initial path is
737 * the current directory for the current process in the other
738 * case the function returns "./" that represents the current
739 * directory on Unix/Linux platforms.
741 const char *__surf_get_initial_path(void);
744 #endif /* _SURF_SURF_H */