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"
15 #include "xbt/config.h"
16 #include "surf/datatypes.h"
18 #include "surf/surf_routing.h"
19 #include "simgrid/platf_interface.h"
22 /* Actions and models are highly connected structures... */
25 SURF_NETWORK_ELEMENT_NULL = 0, /* NULL */
26 SURF_NETWORK_ELEMENT_HOST, /* host type */
27 SURF_NETWORK_ELEMENT_ROUTER, /* router type */
28 SURF_NETWORK_ELEMENT_AS /* AS type */
29 } e_surf_network_element_type_t;
31 XBT_PUBLIC(e_surf_network_element_type_t)
32 routing_get_network_element_type(const char* name);
34 /** @Brief Specify that we use that action */
35 XBT_PUBLIC(void) surf_action_ref(surf_action_t action);
36 /** @brief Creates a new action.
38 * @param size The size is the one of the subtype you want to create
39 * @param cost initial value
40 * @param model to which model we should attach this action
41 * @param failed whether we should start this action in failed mode
43 XBT_PUBLIC(void *) surf_action_new(size_t size, double cost,
44 surf_model_t model, int failed);
46 /** \brief Resource model description
48 typedef struct surf_model_description {
50 const char *description;
51 void_f_void_t model_init_preparse;
52 } s_surf_model_description_t, *surf_model_description_t;
54 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table,
56 XBT_PUBLIC(void) model_help(const char *category,
57 s_surf_model_description_t * table);
59 enum heap_action_type{
66 /** \brief Action structure
67 * \ingroup SURF_actions
69 * Never create s_surf_action_t by yourself ! The actions are created
70 * on the fly when you call execute or communicate on a model.
72 * \see e_surf_action_state_t
74 typedef struct surf_action {
75 s_xbt_swag_hookup_t state_hookup;
77 double cost; /**< cost */
78 double priority; /**< priority (1.0 by default) */
79 double max_duration; /**< max_duration (may fluctuate until
80 the task is completed) */
81 double remains; /**< How much of that cost remains to
82 * be done in the currently running task */
83 #ifdef HAVE_LATENCY_BOUND_TRACKING
84 int latency_limited; /**< Set to 1 if is limited by latency, 0 otherwise */
87 double start; /**< start time */
88 double finish; /**< finish time : this is modified during the run
89 * and fluctuates until the task is completed */
90 void *data; /**< for your convenience */
92 surf_model_t model_type;
94 char *category; /**< tracing category for categorized resource utilization monitoring */
98 typedef struct surf_action_lmm {
99 s_surf_action_t generic_action;
100 lmm_variable_t variable;
102 s_xbt_swag_hookup_t action_list_hookup;
105 enum heap_action_type hat;
106 } s_surf_action_lmm_t, *surf_action_lmm_t;
108 /** \brief Action states
109 * \ingroup SURF_actions
113 * \see surf_action_t, surf_action_state_t
116 SURF_ACTION_READY = 0, /**< Ready */
117 SURF_ACTION_RUNNING, /**< Running */
118 SURF_ACTION_FAILED, /**< Task Failure */
119 SURF_ACTION_DONE, /**< Completed */
120 SURF_ACTION_TO_FREE, /**< Action to free in next cleanup */
121 SURF_ACTION_NOT_IN_THE_SYSTEM
122 /**< Not in the system anymore. Why did you ask ? */
123 } e_surf_action_state_t;
125 /** \brief Action state sets
126 * \ingroup SURF_actions
128 * This structure contains some sets of actions.
129 * It provides a fast access to the actions in each state.
131 * \see surf_action_t, e_surf_action_state_t
133 typedef struct surf_action_state {
134 xbt_swag_t ready_action_set;
135 /**< Actions in state SURF_ACTION_READY */
136 xbt_swag_t running_action_set;
137 /**< Actions in state SURF_ACTION_RUNNING */
138 xbt_swag_t failed_action_set;
139 /**< Actions in state SURF_ACTION_FAILED */
140 xbt_swag_t done_action_set;
141 /**< Actions in state SURF_ACTION_DONE */
142 } s_surf_action_state_t, *surf_action_state_t;
144 /***************************/
145 /* Generic model object */
146 /***************************/
147 typedef struct s_routing_global s_routing_global_t, *routing_global_t;
148 XBT_PUBLIC_DATA(routing_global_t) global_routing;
151 /** \brief Private data available on all models
152 * \ingroup SURF_models
154 typedef struct surf_model_private *surf_model_private_t;
158 /** \brief CPU model extension public
159 * \ingroup SURF_models
161 * Public functions specific to the CPU model.
163 typedef struct surf_cpu_model_extension_public {
164 surf_action_t(*execute) (void *cpu, double size);
165 surf_action_t(*sleep) (void *cpu, double duration);
166 e_surf_resource_state_t(*get_state) (void *cpu);
167 double (*get_speed) (void *cpu, double load);
168 double (*get_available_speed) (void *cpu);
169 void* (*create_resource) (const char *name, double power_peak,
171 tmgr_trace_t power_trace,
173 e_surf_resource_state_t state_initial,
174 tmgr_trace_t state_trace,
175 xbt_dict_t cpu_properties);
176 void (*add_traces) (void);
177 } s_surf_model_extension_cpu_t;
181 /** \brief Network model extension public
182 * \ingroup SURF_models
184 * Public functions specific to the network model
186 typedef struct surf_network_model_extension_public {
187 surf_action_t(*communicate) (void* src,
189 double size, double rate);
190 xbt_dynar_t(*get_route) (void *src, void *dst); //FIXME: kill field? That is done by the routing nowadays
191 double (*get_link_bandwidth) (const void *link);
192 double (*get_link_latency) (const void *link);
193 int (*link_shared) (const void *link);
194 void (*add_traces) (void);
195 void* (*create_resource) (const char *name,
197 tmgr_trace_t bw_trace,
199 tmgr_trace_t lat_trace,
200 e_surf_resource_state_t
202 tmgr_trace_t state_trace,
203 e_surf_link_sharing_policy_t policy,
204 xbt_dict_t properties);
205 } s_surf_model_extension_network_t;
207 typedef struct s_surf_file {
208 char *name; /**< @brief host name if any */
209 void *data; /**< @brief user data */
211 typedef struct s_surf_file *surf_file_t;
215 /** \brief Storage model extension public
216 * \ingroup SURF_models
218 * Public functions specific to the Storage model.
221 typedef struct surf_storage_model_extension_public {
222 surf_action_t(*open) (void *storage, const char* path, const char* mode);
223 surf_action_t(*close) (void *storage, surf_file_t fp);
224 surf_action_t(*read) (void *storage, void* ptr, size_t size, size_t nmemb, surf_file_t stream);
225 surf_action_t(*write) (void *storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream);
226 surf_action_t(*stat) (void *storage, int fd, void* buf);
227 void* (*create_resource) (const char* id, const char* model,const char* type_id,
228 xbt_dict_t content, xbt_dict_t storage_properties);
229 } s_surf_model_extension_storage_t;
231 /** \brief Workstation model extension public
232 * \ingroup SURF_models
234 * Public functions specific to the workstation model.
236 typedef struct surf_workstation_model_extension_public {
237 surf_action_t(*execute) (void *workstation, double size); /**< Execute a computation amount on a workstation
238 and create the corresponding action */
239 surf_action_t(*sleep) (void *workstation, double duration); /**< Make a workstation sleep during a given duration */
240 e_surf_resource_state_t(*get_state) (void *workstation); /**< Return the CPU state of a workstation */
241 double (*get_speed) (void *workstation, double load); /**< Return the speed of a workstation */
242 double (*get_available_speed) (void *workstation); /**< Return tha available speed of a workstation */
243 surf_action_t(*communicate) (void *workstation_src, /**< Execute a communication amount between two workstations */
244 void *workstation_dst, double size,
246 // FIXME: kill next field, which duplicates the routing
247 xbt_dynar_t(*get_route) (void *workstation_src, void *workstation_dst); /**< Get the list of links between two ws */
249 surf_action_t(*execute_parallel_task) (int workstation_nb, /**< Execute a parallel task on several workstations */
250 void **workstation_list,
251 double *computation_amount,
252 double *communication_amount,
253 double amount, double rate);
254 double (*get_link_bandwidth) (const void *link); /**< Return the current bandwidth of a network link */
255 double (*get_link_latency) (const void *link); /**< Return the current latency of a network link */
256 surf_action_t(*open) (void *workstation, const char* storage, const char* path, const char* mode);
257 surf_action_t(*close) (void *workstation, const char* storage, surf_file_t fp);
258 surf_action_t(*read) (void *workstation, const char* storage, void* ptr, size_t size, size_t nmemb, surf_file_t stream);
259 surf_action_t(*write) (void *workstation, const char* storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream);
260 surf_action_t(*stat) (void *workstation, const char* storage, int fd, void* buf);
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 /** \brief Model datatype
287 * \ingroup SURF_models
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 */
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 surf_model_private_t model_private;
324 s_surf_model_extension_cpu_t cpu;
325 s_surf_model_extension_network_t network;
326 s_surf_model_extension_storage_t storage;
327 s_surf_model_extension_workstation_t workstation;
331 surf_model_t surf_model_init(void);
332 void surf_model_exit(surf_model_t model);
334 static inline void *surf_cpu_resource_by_name(const char *name) {
335 return xbt_lib_get_or_null(host_lib, name, SURF_CPU_LEVEL);
337 static inline void *surf_workstation_resource_by_name(const char *name){
338 return xbt_lib_get_or_null(host_lib, name, SURF_WKS_LEVEL);
340 static inline void *surf_network_resource_by_name(const char *name){
341 return xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL);
343 static inline void *surf_storage_resource_by_name(const char *name){
344 return xbt_lib_get_or_null(storage_lib, name, SURF_STORAGE_LEVEL);
347 typedef struct surf_resource {
350 xbt_dict_t properties;
351 } s_surf_resource_t, *surf_resource_t;
356 typedef struct s_storage_type {
360 xbt_dict_t properties;
361 } s_storage_type_t, *storage_type_t;
363 typedef struct s_mount {
366 } s_mount_t, *mount_t;
369 * Resource which have a metric handled by a maxmin system
374 tmgr_trace_event_t event;
377 typedef struct surf_resource_lmm {
378 s_surf_resource_t generic_resource;
379 lmm_constraint_t constraint;
380 e_surf_resource_state_t state_current;
381 tmgr_trace_event_t state_event;
382 s_surf_metric_t power;
383 } s_surf_resource_lmm_t, *surf_resource_lmm_t;
385 /**************************************/
386 /* Implementations of model object */
387 /**************************************/
390 /** \brief The CPU model
391 * \ingroup SURF_models
393 XBT_PUBLIC_DATA(surf_model_t) surf_cpu_model;
395 /** \brief Initializes the CPU model with the model Cas01
396 * \ingroup SURF_models
398 * By default, this model uses the lazy optimization mechanism that
399 * relies on partial invalidation in LMM and a heap for lazy action update.
400 * You can change this behavior by setting the cpu/optim configuration
401 * variable to a different value.
403 * This function is called by surf_workstation_model_init_CLM03
404 * so you shouldn't have to call it by yourself.
406 * \see surf_workstation_model_init_CLM03()
408 XBT_PUBLIC(void) surf_cpu_model_init_Cas01(void);
410 /** \brief Initializes the CPU model with trace integration [Deprecated]
411 * \ingroup SURF_models
413 * You shouldn't have to call it by yourself.
414 * \see surf_workstation_model_init_CLM03()
416 XBT_PUBLIC(void) surf_cpu_model_init_ti(void);
418 /** \brief This function call the share resources function needed
421 XBT_PUBLIC(double) generic_share_resources(double now);
423 /** \brief This function call the update action state function needed
426 XBT_PUBLIC(void) generic_update_actions_state(double now, double delta);
428 /** \brief The list of all available optimization modes (both for cpu and networks).
429 * \ingroup SURF_models
430 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
432 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
434 /** \brief The list of all available cpu model models
435 * \ingroup SURF_models
437 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
439 XBT_PUBLIC(void) create_workstations(void);
441 /**\brief create new host bypass the parser
446 /** \brief The network model
447 * \ingroup SURF_models
449 * When creating a new API on top on SURF, you shouldn't use the
450 * network model unless you know what you are doing. Only the workstation
451 * model should be accessed because depending on the platform model,
452 * the network model can be NULL.
454 XBT_PUBLIC_DATA(surf_model_t) surf_network_model;
456 /** \brief Same as network model 'LagrangeVelho', only with different correction factors.
457 * \ingroup SURF_models
459 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud
460 * based on the model 'LV08' and different correction factors depending on the communication
461 * size (< 1KiB, < 64KiB, >= 64KiB).
462 * See comments in the code for more information.
464 * \see surf_workstation_model_init_SMPI()
466 XBT_PUBLIC(void) surf_network_model_init_SMPI(void);
468 /** \brief Initializes the platform with the network model 'LegrandVelho'
469 * \ingroup SURF_models
471 * This model is proposed by Arnaud Legrand and Pedro Velho based on
472 * the results obtained with the GTNets simulator for onelink and
473 * dogbone sharing scenarios. See comments in the code for more information.
475 * \see surf_workstation_model_init_LegrandVelho()
477 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho(void);
479 /** \brief Initializes the platform with the network model 'Constant'
480 * \ingroup SURF_models
482 * In this model, the communication time between two network cards is
483 * constant, hence no need for a routing table. This is particularly
484 * usefull when simulating huge distributed algorithms where
485 * scalability is really an issue. This function is called in
486 * conjunction with surf_workstation_model_init_compound.
488 * \see surf_workstation_model_init_compound()
490 XBT_PUBLIC(void) surf_network_model_init_Constant(void);
492 /** \brief Initializes the platform with the network model CM02
493 * \ingroup SURF_models
495 * This function is called by surf_workstation_model_init_CLM03
496 * or by yourself only if you plan using surf_workstation_model_init_compound
497 * See comments in the code for more information.
499 * \see surf_workstation_model_init_CLM03()
501 XBT_PUBLIC(void) surf_network_model_init_CM02(void);
504 * brief initialize the the network model bypassing the XML parser
506 XBT_PUBLIC(void) surf_network_model_init_bypass(const char *id,
511 /** \brief Initializes the platform with the network model GTNETS
512 * \ingroup SURF_models
513 * \param filename XML platform file name
515 * This function is called by surf_workstation_model_init_GTNETS
516 * or by yourself only if you plan using surf_workstation_model_init_compound
518 * \see surf_workstation_model_init_GTNETS()
520 XBT_PUBLIC(void) surf_network_model_init_GTNETS(void);
524 /** \brief Initializes the platform with the network model NS3
525 * \ingroup SURF_models
526 * \param filename XML platform file name
528 * This function is called by surf_workstation_model_init_NS3
529 * or by yourself only if you plan using surf_workstation_model_init_compound
531 * \see surf_workstation_model_init_NS3()
533 XBT_PUBLIC(void) surf_network_model_init_NS3(void);
536 /** \brief Initializes the platform with the network model Reno
537 * \ingroup SURF_models
538 * \param filename XML platform file name
540 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
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_Reno(void);
551 /** \brief Initializes the platform with the network model Reno2
552 * \ingroup SURF_models
553 * \param filename XML platform file name
555 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
558 * [LOW01] 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_Reno2(void);
566 /** \brief Initializes the platform with the network model Vegas
567 * \ingroup SURF_models
568 * \param filename XML platform file name
570 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent
571 * to the proportional fairness.
574 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
575 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
577 * Call this function only if you plan using surf_workstation_model_init_compound.
580 XBT_PUBLIC(void) surf_network_model_init_Vegas(void);
582 /** \brief The list of all available network model models
583 * \ingroup SURF_models
585 XBT_PUBLIC_DATA(s_surf_model_description_t)
586 surf_network_model_description[];
593 /** \brief The storage model
594 * \ingroup SURF_models
596 XBT_PUBLIC(void) surf_storage_model_init_default(void);
598 /** \brief The list of all available storage modes.
599 * \ingroup SURF_models
600 * This storage mode can be set using --cfg=storage/model:...
602 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
610 /** \brief The workstation model
611 * \ingroup SURF_models
613 * Note that when you create an API on top of SURF,
614 * the workstation model should be the only one you use
615 * because depending on the platform model, the network model and the CPU model
618 XBT_PUBLIC_DATA(surf_model_t) surf_workstation_model;
620 /** \brief Initializes the platform with a compound workstation model
621 * \ingroup SURF_models
623 * This function should be called after a cpu_model and a
624 * network_model have been set up.
627 XBT_PUBLIC(void) surf_workstation_model_init_compound(void);
629 /** \brief Initializes the platform with the current best network and cpu models at hand
630 * \ingroup SURF_models
632 * This platform model seperates the workstation model and the network model.
633 * The workstation model will be initialized with the model compound, the network
634 * model with the model LV08 (with cross traffic support) and the CPU model with
636 * Such model is subject to modification with warning in the ChangeLog so monitor it!
639 XBT_PUBLIC(void) surf_workstation_model_init_current_default(void);
641 /** \brief Initializes the platform with the workstation model CLM03
642 * \ingroup SURF_models
644 * This platform model seperates the workstation model and the network model.
645 * The workstation model will be initialized with the model CLM03, the network
646 * model with the model CM02 and the CPU model with the model Cas01.
647 * In future releases, some other network models will be implemented and will be
648 * combined with the workstation model CLM03.
651 XBT_PUBLIC(void) surf_workstation_model_init_CLM03(void);
653 /** \brief Initializes the platform with the model KCCFLN05
654 * \ingroup SURF_models
656 * With this model, only parallel tasks can be used. Resource sharing
657 * is done by identifying bottlenecks and giving an equal share of
658 * the model to each action.
661 XBT_PUBLIC(void) surf_workstation_model_init_ptask_L07(void);
663 /** \brief The list of all available workstation model models
664 * \ingroup SURF_models
666 XBT_PUBLIC_DATA(s_surf_model_description_t)
667 surf_workstation_model_description[];
669 /** \brief List of initialized models
670 * \ingroup SURF_models
672 XBT_PUBLIC_DATA(xbt_dynar_t) model_list;
674 /*******************************************/
675 /*** SURF Globals **************************/
676 /*******************************************/
677 XBT_PUBLIC_DATA(xbt_cfg_t) _surf_cfg_set;
679 /** \brief Initialize SURF
680 * \ingroup SURF_simulation
681 * \param argc argument number
682 * \param argv arguments
684 * This function has to be called to initialize the common
685 * structures. Then you will have to create the environment by
687 * e.g. surf_workstation_model_init_CLM03()
689 * \see surf_workstation_model_init_CLM03(), surf_workstation_model_init_compound(), surf_exit()
691 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
693 /** \brief Finish simulation initialization
694 * \ingroup SURF_simulation
696 * This function must be called before the first call to surf_solve()
698 XBT_PUBLIC(void) surf_presolve(void);
700 /** \brief Performs a part of the simulation
701 * \ingroup SURF_simulation
702 * \param max_date Maximum date to update the simulation to, or -1
703 * \return the elapsed time, or -1.0 if no event could be executed
705 * This function execute all possible events, update the action states
706 * and returns the time elapsed.
707 * When you call execute or communicate on a model, the corresponding actions
708 * are not executed immediately but only when you call surf_solve.
709 * Note that the returned elapsed time can be zero.
711 XBT_PUBLIC(double) surf_solve(double max_date);
713 /** \brief Return the current time
714 * \ingroup SURF_simulation
716 * Return the current time in millisecond.
718 XBT_PUBLIC(double) surf_get_clock(void);
721 * \ingroup SURF_simulation
727 XBT_PUBLIC(void) surf_exit(void);
729 /* Prototypes of the functions that handle the properties */
730 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set; /* the prop set for the currently parsed element (also used in SIMIX) */
731 XBT_PUBLIC(void) parse_properties(void);
733 /* surf parse file related (public because called from a test suite) */
734 XBT_PUBLIC(void) parse_platform_file(const char *file);
736 /* Stores the sets */
737 XBT_PUBLIC_DATA(xbt_dict_t) set_list;
739 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
740 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
741 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_host_avail;
742 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_power;
743 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_avail;
744 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_bandwidth;
745 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_latency;
748 XBT_PUBLIC(double) get_cpu_power(const char *power);
750 int surf_get_nthreads(void);
751 void surf_set_nthreads(int nthreads);
754 #endif /* _SURF_SURF_H */