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... */
26 SURF_NETWORK_ELEMENT_NULL = 0, /* NULL */
27 SURF_NETWORK_ELEMENT_HOST, /* host type */
28 SURF_NETWORK_ELEMENT_ROUTER, /* router type */
29 SURF_NETWORK_ELEMENT_AS /* AS type */
30 } e_surf_network_element_type_t;
32 XBT_PUBLIC(e_surf_network_element_type_t)
33 routing_get_network_element_type(const char* name);
35 /** @Brief Specify that we use that action */
36 XBT_PUBLIC(void) surf_action_ref(surf_action_t action);
38 /** @brief Creates a new action.
40 * @param size The size is the one of the subtype you want to create
41 * @param cost initial value
42 * @param model to which model we should attach this action
43 * @param failed whether we should start this action in failed mode
45 XBT_PUBLIC(void *) surf_action_new(size_t size, double cost,
46 surf_model_t model, int failed);
48 /** \brief Resource model description
50 typedef struct surf_model_description {
52 const char *description;
53 void_f_void_t model_init_preparse;
54 } s_surf_model_description_t, *surf_model_description_t;
56 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table,
58 XBT_PUBLIC(void) model_help(const char *category,
59 s_surf_model_description_t * table);
61 enum heap_action_type{
68 /** \ingroup SURF_actions
69 * \brief Action structure
71 * Never create s_surf_action_t by yourself ! The actions are created
72 * on the fly when you call execute or communicate on a model.
74 * \see e_surf_action_state_t
76 typedef struct surf_action {
77 s_xbt_swag_hookup_t state_hookup;
79 double cost; /**< cost */
80 double priority; /**< priority (1.0 by default) */
81 double max_duration; /**< max_duration (may fluctuate until
82 the task is completed) */
83 double remains; /**< How much of that cost remains to
84 * be done in the currently running task */
85 #ifdef HAVE_LATENCY_BOUND_TRACKING
86 int latency_limited; /**< Set to 1 if is limited by latency, 0 otherwise */
89 double start; /**< start time */
90 double finish; /**< finish time : this is modified during the run
91 * and fluctuates until the task is completed */
92 void *data; /**< for your convenience */
94 surf_model_t model_type;
96 char *category; /**< tracing category for categorized resource utilization monitoring */
98 surf_file_t file; /**< surf_file_t for storage model */
99 s_file_stat_t stat; /**< surf_file_t for storage model */
102 typedef struct surf_action_lmm {
103 s_surf_action_t generic_action;
104 lmm_variable_t variable;
106 s_xbt_swag_hookup_t action_list_hookup;
110 enum heap_action_type hat;
111 } s_surf_action_lmm_t, *surf_action_lmm_t;
113 /** \ingroup SURF_actions
114 * \brief Action states
118 * \see surf_action_t, surf_action_state_t
121 SURF_ACTION_READY = 0, /**< Ready */
122 SURF_ACTION_RUNNING, /**< Running */
123 SURF_ACTION_FAILED, /**< Task Failure */
124 SURF_ACTION_DONE, /**< Completed */
125 SURF_ACTION_TO_FREE, /**< Action to free in next cleanup */
126 SURF_ACTION_NOT_IN_THE_SYSTEM
127 /**< Not in the system anymore. Why did you ask ? */
128 } e_surf_action_state_t;
130 /** \ingroup SURF_actions
131 * \brief Action state sets
133 * This structure contains some sets of actions.
134 * It provides a fast access to the actions in each state.
136 * \see surf_action_t, e_surf_action_state_t
138 typedef struct surf_action_state {
139 xbt_swag_t ready_action_set;
140 /**< Actions in state SURF_ACTION_READY */
141 xbt_swag_t running_action_set;
142 /**< Actions in state SURF_ACTION_RUNNING */
143 xbt_swag_t failed_action_set;
144 /**< Actions in state SURF_ACTION_FAILED */
145 xbt_swag_t done_action_set;
146 /**< Actions in state SURF_ACTION_DONE */
147 } s_surf_action_state_t, *surf_action_state_t;
149 /***************************/
150 /* Generic model object */
151 /***************************/
152 typedef struct s_routing_platf s_routing_platf_t, *routing_platf_t;
153 XBT_PUBLIC_DATA(routing_platf_t) routing_platf;
156 /** \ingroup SURF_models
157 * \brief Private data available on all models
159 typedef struct surf_model_private *surf_model_private_t;
163 /** \ingroup SURF_models
164 * \brief CPU model extension public
166 * Public functions specific to the CPU model.
168 typedef struct surf_cpu_model_extension_public {
169 surf_action_t(*execute) (void *cpu, double size);
170 surf_action_t(*sleep) (void *cpu, double duration);
171 e_surf_resource_state_t(*get_state) (void *cpu);
172 double (*get_speed) (void *cpu, double load);
173 double (*get_available_speed) (void *cpu);
174 void* (*create_resource) (const char *name, double power_peak,
176 tmgr_trace_t power_trace,
178 e_surf_resource_state_t state_initial,
179 tmgr_trace_t state_trace,
180 xbt_dict_t cpu_properties);
181 void (*add_traces) (void);
182 } s_surf_model_extension_cpu_t;
186 /** \ingroup SURF_models
187 * \brief Network model extension public
189 * Public functions specific to the network model
191 typedef struct surf_network_model_extension_public {
192 surf_action_t (*communicate) (sg_routing_edge_t src,
193 sg_routing_edge_t dst,
194 double size, double rate);
195 xbt_dynar_t(*get_route) (void *src, void *dst); //FIXME: kill field? That is done by the routing nowadays
196 double (*get_link_bandwidth) (const void *link);
197 double (*get_link_latency) (const void *link);
198 int (*link_shared) (const void *link);
199 void (*add_traces) (void);
200 void* (*create_resource) (const char *name,
202 tmgr_trace_t bw_trace,
204 tmgr_trace_t lat_trace,
205 e_surf_resource_state_t
207 tmgr_trace_t state_trace,
208 e_surf_link_sharing_policy_t policy,
209 xbt_dict_t properties);
210 } s_surf_model_extension_network_t;
214 /** \ingroup SURF_models
215 * \brief Storage model extension public
217 * Public functions specific to the Storage model.
220 typedef struct surf_storage_model_extension_public {
221 surf_action_t(*open) (void *storage, const char* mount, const char* path, const char* mode);
222 surf_action_t(*close) (void *storage, surf_file_t fp);
223 surf_action_t(*read) (void *storage, void* ptr, double size, size_t nmemb, surf_file_t stream);
224 surf_action_t(*write) (void *storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream);
225 surf_action_t(*stat) (void *storage, surf_file_t stream);
226 surf_action_t(*unlink) (void *storage, surf_file_t stream);
227 void* (*create_resource) (const char* id, const char* model, const char* type_id, const char *content);
228 } s_surf_model_extension_storage_t;
230 /** \ingroup SURF_models
231 * \brief Workstation model extension public
233 * Public functions specific to the workstation model.
235 typedef struct surf_workstation_model_extension_public {
236 surf_action_t(*execute) (void *workstation, double size); /**< Execute a computation amount on a workstation
237 and create the corresponding action */
238 surf_action_t(*sleep) (void *workstation, double duration); /**< Make a workstation sleep during a given duration */
239 e_surf_resource_state_t(*get_state) (void *workstation); /**< Return the CPU state of a workstation */
240 double (*get_speed) (void *workstation, double load); /**< Return the speed of a workstation */
241 double (*get_available_speed) (void *workstation); /**< Return tha available speed of a workstation */
242 surf_action_t(*communicate) (void *workstation_src, /**< Execute a communication amount between two workstations */
243 void *workstation_dst, double size,
245 // FIXME: kill next field, which duplicates the routing
246 xbt_dynar_t(*get_route) (void *workstation_src, void *workstation_dst); /**< Get the list of links between two ws */
248 surf_action_t(*execute_parallel_task) (int workstation_nb, /**< Execute a parallel task on several workstations */
249 void **workstation_list,
250 double *computation_amount,
251 double *communication_amount,
253 double (*get_link_bandwidth) (const void *link); /**< Return the current bandwidth of a network link */
254 double (*get_link_latency) (const void *link); /**< Return the current latency of a network link */
255 surf_action_t(*open) (void *workstation, const char* storage, const char* path, const char* mode);
256 surf_action_t(*close) (void *workstation, surf_file_t fp);
257 surf_action_t(*read) (void *workstation, void* ptr, size_t size, size_t nmemb, surf_file_t stream);
258 surf_action_t(*write) (void *workstation, const void* ptr, size_t size, size_t nmemb, surf_file_t stream);
259 surf_action_t(*stat) (void *workstation, surf_file_t stream);
260 surf_action_t(*unlink) (void *workstation, surf_file_t stream);
261 int (*link_shared) (const void *link);
262 xbt_dict_t(*get_properties) (const void *resource);
263 void* (*link_create_resource) (const char *name,
265 tmgr_trace_t bw_trace,
267 tmgr_trace_t lat_trace,
268 e_surf_resource_state_t
270 tmgr_trace_t state_trace,
271 e_surf_link_sharing_policy_t
272 policy, xbt_dict_t properties);
273 void* (*cpu_create_resource) (const char *name, double power_peak,
275 tmgr_trace_t power_trace,
276 e_surf_resource_state_t state_initial,
277 tmgr_trace_t state_trace,
278 xbt_dict_t cpu_properties);
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;
333 surf_model_t surf_model_init(void);
334 void surf_model_exit(surf_model_t model);
336 static inline void *surf_cpu_resource_by_name(const char *name) {
337 return xbt_lib_get_or_null(host_lib, name, SURF_CPU_LEVEL);
339 static inline void *surf_workstation_resource_by_name(const char *name){
340 return xbt_lib_get_or_null(host_lib, name, SURF_WKS_LEVEL);
342 static inline void *surf_storage_resource_by_name(const char *name){
343 return xbt_lib_get_or_null(storage_lib, name, SURF_STORAGE_LEVEL);
346 typedef struct surf_resource {
349 xbt_dict_t properties;
350 } s_surf_resource_t, *surf_resource_t;
353 * Resource which have a metric handled by a maxmin system
358 tmgr_trace_event_t event;
361 typedef struct surf_resource_lmm {
362 s_surf_resource_t generic_resource;
363 lmm_constraint_t constraint;
364 e_surf_resource_state_t state_current;
365 tmgr_trace_event_t state_event;
366 s_surf_metric_t power;
367 } s_surf_resource_lmm_t, *surf_resource_lmm_t;
369 /**************************************/
370 /* Implementations of model object */
371 /**************************************/
374 /** \ingroup SURF_models
375 * \brief The CPU model
377 XBT_PUBLIC_DATA(surf_model_t) surf_cpu_model;
379 /** \ingroup SURF_models
380 * \brief Initializes the CPU model with the model Cas01
382 * By default, this model uses the lazy optimization mechanism that
383 * relies on partial invalidation in LMM and a heap for lazy action update.
384 * You can change this behavior by setting the cpu/optim configuration
385 * variable to a different value.
387 * This function is called by surf_workstation_model_init_CLM03
388 * so you shouldn't have to call it by yourself.
390 * \see surf_workstation_model_init_CLM03()
392 XBT_PUBLIC(void) surf_cpu_model_init_Cas01(void);
394 /** \ingroup SURF_models
395 * \brief Initializes the CPU model with trace integration [Deprecated]
397 * You shouldn't have to call it by yourself.
398 * \see surf_workstation_model_init_CLM03()
400 XBT_PUBLIC(void) surf_cpu_model_init_ti(void);
402 /** \brief This function call the share resources function needed
405 XBT_PUBLIC(double) generic_share_resources(double now);
407 /** \brief This function call the update action state function needed
410 XBT_PUBLIC(void) generic_update_actions_state(double now, double delta);
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 XBT_PUBLIC(void) create_workstations(void);
425 /**\brief create new host bypass the parser
430 /** \ingroup SURF_models
431 * \brief The network model
433 * When creating a new API on top on SURF, you shouldn't use the
434 * network model unless you know what you are doing. Only the workstation
435 * model should be accessed because depending on the platform model,
436 * the network model can be NULL.
438 XBT_PUBLIC_DATA(surf_model_t) surf_network_model;
440 /** \ingroup SURF_models
441 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
443 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud
444 * based on the model 'LV08' and different correction factors depending on the communication
445 * size (< 1KiB, < 64KiB, >= 64KiB).
446 * See comments in the code for more information.
448 * \see surf_workstation_model_init_SMPI()
450 XBT_PUBLIC(void) surf_network_model_init_SMPI(void);
452 /** \ingroup SURF_models
453 * \brief Initializes the platform with the network model 'LegrandVelho'
455 * This model is proposed by Arnaud Legrand and Pedro Velho based on
456 * the results obtained with the GTNets simulator for onelink and
457 * dogbone sharing scenarios. See comments in the code for more information.
459 * \see surf_workstation_model_init_LegrandVelho()
461 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho(void);
463 /** \ingroup SURF_models
464 * \brief Initializes the platform with the network model 'Constant'
466 * In this model, the communication time between two network cards is
467 * constant, hence no need for a routing table. This is particularly
468 * usefull when simulating huge distributed algorithms where
469 * scalability is really an issue. This function is called in
470 * conjunction with surf_workstation_model_init_compound.
472 * \see surf_workstation_model_init_compound()
474 XBT_PUBLIC(void) surf_network_model_init_Constant(void);
476 /** \ingroup SURF_models
477 * \brief Initializes the platform with the network model CM02
479 * This function is called by surf_workstation_model_init_CLM03
480 * or by yourself only if you plan using surf_workstation_model_init_compound
481 * See comments in the code for more information.
483 * \see surf_workstation_model_init_CLM03()
485 XBT_PUBLIC(void) surf_network_model_init_CM02(void);
488 * brief initialize the the network model bypassing the XML parser
490 XBT_PUBLIC(void) surf_network_model_init_bypass(const char *id,
495 /** \ingroup SURF_models
496 * \brief Initializes the platform with the network model GTNETS
497 * \param filename XML platform file name
499 * This function is called by surf_workstation_model_init_GTNETS
500 * or by yourself only if you plan using surf_workstation_model_init_compound
502 * \see surf_workstation_model_init_GTNETS()
504 XBT_PUBLIC(void) surf_network_model_init_GTNETS(void);
508 /** \ingroup SURF_models
509 * \brief Initializes the platform with the network model NS3
510 * \param filename XML platform file name
512 * This function is called by surf_workstation_model_init_NS3
513 * or by yourself only if you plan using surf_workstation_model_init_compound
515 * \see surf_workstation_model_init_NS3()
517 XBT_PUBLIC(void) surf_network_model_init_NS3(void);
520 /** \ingroup SURF_models
521 * \brief Initializes the platform with the network model Reno
522 * \param filename XML platform file name
524 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
527 * [LOW03] 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_Reno(void);
535 /** \ingroup SURF_models
536 * \brief Initializes the platform with the network model Reno2
537 * \param filename XML platform file name
539 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
542 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
543 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
545 * Call this function only if you plan using surf_workstation_model_init_compound.
548 XBT_PUBLIC(void) surf_network_model_init_Reno2(void);
550 /** \ingroup SURF_models
551 * \brief Initializes the platform with the network model Vegas
552 * \param filename XML platform file name
554 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent
555 * to the proportional fairness.
558 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
559 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
561 * Call this function only if you plan using surf_workstation_model_init_compound.
564 XBT_PUBLIC(void) surf_network_model_init_Vegas(void);
566 /** \ingroup SURF_models
567 * \brief The list of all available network model models
569 XBT_PUBLIC_DATA(s_surf_model_description_t)
570 surf_network_model_description[];
577 /** \ingroup SURF_models
578 * \brief The storage model
580 XBT_PUBLIC(void) surf_storage_model_init_default(void);
582 /** \ingroup SURF_models
583 * \brief The list of all available storage modes.
584 * This storage mode can be set using --cfg=storage/model:...
586 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
594 /** \ingroup SURF_models
595 * \brief The workstation model
597 * Note that when you create an API on top of SURF,
598 * the workstation model should be the only one you use
599 * because depending on the platform model, the network model and the CPU model
602 XBT_PUBLIC_DATA(surf_model_t) surf_workstation_model;
604 /** \ingroup SURF_models
605 * \brief Initializes the platform with a compound workstation model
607 * This function should be called after a cpu_model and a
608 * network_model have been set up.
611 XBT_PUBLIC(void) surf_workstation_model_init_compound(void);
613 /** \ingroup SURF_models
614 * \brief Initializes the platform with the current best network and cpu models at hand
616 * This platform model seperates the workstation model and the network model.
617 * The workstation model will be initialized with the model compound, the network
618 * model with the model LV08 (with cross traffic support) and the CPU model with
620 * Such model is subject to modification with warning in the ChangeLog so monitor it!
623 XBT_PUBLIC(void) surf_workstation_model_init_current_default(void);
625 /** \ingroup SURF_models
626 * \brief Initializes the platform with the workstation model CLM03
628 * This platform model seperates the workstation model and the network model.
629 * The workstation model will be initialized with the model CLM03, the network
630 * model with the model CM02 and the CPU model with the model Cas01.
631 * In future releases, some other network models will be implemented and will be
632 * combined with the workstation model CLM03.
635 XBT_PUBLIC(void) surf_workstation_model_init_CLM03(void);
637 /** \ingroup SURF_models
638 * \brief Initializes the platform with the model KCCFLN05
640 * With this model, only parallel tasks can be used. Resource sharing
641 * is done by identifying bottlenecks and giving an equal share of
642 * the model to each action.
645 XBT_PUBLIC(void) surf_workstation_model_init_ptask_L07(void);
647 /** \ingroup SURF_models
648 * \brief The list of all available workstation model models
650 XBT_PUBLIC_DATA(s_surf_model_description_t)
651 surf_workstation_model_description[];
653 /** \ingroup SURF_models
654 * \brief List of initialized models
656 XBT_PUBLIC_DATA(xbt_dynar_t) model_list;
658 /*******************************************/
659 /*** SURF Globals **************************/
660 /*******************************************/
661 XBT_PUBLIC_DATA(xbt_cfg_t) _surf_cfg_set;
663 /** \ingroup SURF_simulation
664 * \brief Initialize SURF
665 * \param argc argument number
666 * \param argv arguments
668 * This function has to be called to initialize the common
669 * structures. Then you will have to create the environment by
671 * e.g. surf_workstation_model_init_CLM03()
673 * \see surf_workstation_model_init_CLM03(), surf_workstation_model_init_compound(), surf_exit()
675 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
677 /** \ingroup SURF_simulation
678 * \brief Finish simulation initialization
680 * This function must be called before the first call to surf_solve()
682 XBT_PUBLIC(void) surf_presolve(void);
684 /** \ingroup SURF_simulation
685 * \brief Performs a part of the simulation
686 * \param max_date Maximum date to update the simulation to, or -1
687 * \return the elapsed time, or -1.0 if no event could be executed
689 * This function execute all possible events, update the action states
690 * and returns the time elapsed.
691 * When you call execute or communicate on a model, the corresponding actions
692 * are not executed immediately but only when you call surf_solve.
693 * Note that the returned elapsed time can be zero.
695 XBT_PUBLIC(double) surf_solve(double max_date);
697 /** \ingroup SURF_simulation
698 * \brief Return the current time
700 * Return the current time in millisecond.
702 XBT_PUBLIC(double) surf_get_clock(void);
704 /** \ingroup SURF_simulation
711 XBT_PUBLIC(void) surf_exit(void);
713 /* Prototypes of the functions that handle the properties */
714 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set; /* the prop set for the currently parsed element (also used in SIMIX) */
715 XBT_PUBLIC(void) parse_properties(void);
717 /* surf parse file related (public because called from a test suite) */
718 XBT_PUBLIC(void) parse_platform_file(const char *file);
720 /* Stores the sets */
721 XBT_PUBLIC_DATA(xbt_dict_t) set_list;
723 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
724 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
725 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_host_avail;
726 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_power;
727 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_avail;
728 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_bandwidth;
729 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_latency;
732 XBT_PUBLIC(double) get_cpu_power(const char *power);
734 int surf_get_nthreads(void);
735 void surf_set_nthreads(int nthreads);
737 void surf_watched_hosts(void);
740 #endif /* _SURF_SURF_H */