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 */
96 void* file; /**< m_file_t for storage model */
100 typedef struct surf_action_lmm {
101 s_surf_action_t generic_action;
102 lmm_variable_t variable;
104 s_xbt_swag_hookup_t action_list_hookup;
107 enum heap_action_type hat;
108 } s_surf_action_lmm_t, *surf_action_lmm_t;
110 /** \brief Action states
111 * \ingroup SURF_actions
115 * \see surf_action_t, surf_action_state_t
118 SURF_ACTION_READY = 0, /**< Ready */
119 SURF_ACTION_RUNNING, /**< Running */
120 SURF_ACTION_FAILED, /**< Task Failure */
121 SURF_ACTION_DONE, /**< Completed */
122 SURF_ACTION_TO_FREE, /**< Action to free in next cleanup */
123 SURF_ACTION_NOT_IN_THE_SYSTEM
124 /**< Not in the system anymore. Why did you ask ? */
125 } e_surf_action_state_t;
127 /** \brief Action state sets
128 * \ingroup SURF_actions
130 * This structure contains some sets of actions.
131 * It provides a fast access to the actions in each state.
133 * \see surf_action_t, e_surf_action_state_t
135 typedef struct surf_action_state {
136 xbt_swag_t ready_action_set;
137 /**< Actions in state SURF_ACTION_READY */
138 xbt_swag_t running_action_set;
139 /**< Actions in state SURF_ACTION_RUNNING */
140 xbt_swag_t failed_action_set;
141 /**< Actions in state SURF_ACTION_FAILED */
142 xbt_swag_t done_action_set;
143 /**< Actions in state SURF_ACTION_DONE */
144 } s_surf_action_state_t, *surf_action_state_t;
146 /***************************/
147 /* Generic model object */
148 /***************************/
149 typedef struct s_routing_global s_routing_global_t, *routing_global_t;
150 XBT_PUBLIC_DATA(routing_global_t) global_routing;
153 /** \brief Private data available on all models
154 * \ingroup SURF_models
156 typedef struct surf_model_private *surf_model_private_t;
160 /** \brief CPU model extension public
161 * \ingroup SURF_models
163 * Public functions specific to the CPU model.
165 typedef struct surf_cpu_model_extension_public {
166 surf_action_t(*execute) (void *cpu, double size);
167 surf_action_t(*sleep) (void *cpu, double duration);
168 e_surf_resource_state_t(*get_state) (void *cpu);
169 double (*get_speed) (void *cpu, double load);
170 double (*get_available_speed) (void *cpu);
171 void* (*create_resource) (const char *name, double power_peak,
173 tmgr_trace_t power_trace,
175 e_surf_resource_state_t state_initial,
176 tmgr_trace_t state_trace,
177 xbt_dict_t cpu_properties);
178 void (*add_traces) (void);
179 } s_surf_model_extension_cpu_t;
181 typedef struct s_network_element_info *network_element_t;
185 /** \brief Network model extension public
186 * \ingroup SURF_models
188 * Public functions specific to the network model
190 typedef struct surf_network_model_extension_public {
191 surf_action_t (*communicate) (network_element_t src,
192 network_element_t dst,
193 double size, double rate);
194 xbt_dynar_t(*get_route) (void *src, void *dst); //FIXME: kill field? That is done by the routing nowadays
195 double (*get_link_bandwidth) (const void *link);
196 double (*get_link_latency) (const void *link);
197 int (*link_shared) (const void *link);
198 void (*add_traces) (void);
199 void* (*create_resource) (const char *name,
201 tmgr_trace_t bw_trace,
203 tmgr_trace_t lat_trace,
204 e_surf_resource_state_t
206 tmgr_trace_t state_trace,
207 e_surf_link_sharing_policy_t policy,
208 xbt_dict_t properties);
209 } s_surf_model_extension_network_t;
213 /** \brief Storage model extension public
214 * \ingroup SURF_models
216 * Public functions specific to the Storage model.
219 typedef struct surf_storage_model_extension_public {
220 surf_action_t(*open) (void *storage, const char* path, const char* mode);
221 surf_action_t(*close) (void *storage, m_file_t fp);
222 surf_action_t(*read) (void *storage, void* ptr, size_t size, size_t nmemb, m_file_t stream);
223 surf_action_t(*write) (void *storage, const void* ptr, size_t size, size_t nmemb, m_file_t stream);
224 surf_action_t(*stat) (void *storage, int fd, void* buf);
225 void* (*create_resource) (const char* id, const char* model,const char* type_id);
226 } s_surf_model_extension_storage_t;
228 /** \brief Workstation model extension public
229 * \ingroup SURF_models
231 * Public functions specific to the workstation model.
233 typedef struct surf_workstation_model_extension_public {
234 surf_action_t(*execute) (void *workstation, double size); /**< Execute a computation amount on a workstation
235 and create the corresponding action */
236 surf_action_t(*sleep) (void *workstation, double duration); /**< Make a workstation sleep during a given duration */
237 e_surf_resource_state_t(*get_state) (void *workstation); /**< Return the CPU state of a workstation */
238 double (*get_speed) (void *workstation, double load); /**< Return the speed of a workstation */
239 double (*get_available_speed) (void *workstation); /**< Return tha available speed of a workstation */
240 surf_action_t(*communicate) (void *workstation_src, /**< Execute a communication amount between two workstations */
241 void *workstation_dst, double size,
243 // FIXME: kill next field, which duplicates the routing
244 xbt_dynar_t(*get_route) (void *workstation_src, void *workstation_dst); /**< Get the list of links between two ws */
246 surf_action_t(*execute_parallel_task) (int workstation_nb, /**< Execute a parallel task on several workstations */
247 void **workstation_list,
248 double *computation_amount,
249 double *communication_amount,
250 double amount, double rate);
251 double (*get_link_bandwidth) (const void *link); /**< Return the current bandwidth of a network link */
252 double (*get_link_latency) (const void *link); /**< Return the current latency of a network link */
253 surf_action_t(*open) (void *workstation, const char* storage, const char* path, const char* mode);
254 surf_action_t(*close) (void *workstation, const char* storage, m_file_t fp);
255 surf_action_t(*read) (void *workstation, const char* storage, void* ptr, size_t size, size_t nmemb, m_file_t stream);
256 surf_action_t(*write) (void *workstation, const char* storage, const void* ptr, size_t size, size_t nmemb, m_file_t stream);
257 surf_action_t(*stat) (void *workstation, const char* storage, int fd, void* buf);
258 int (*link_shared) (const void *link);
259 xbt_dict_t(*get_properties) (const void *resource);
260 void* (*link_create_resource) (const char *name,
262 tmgr_trace_t bw_trace,
264 tmgr_trace_t lat_trace,
265 e_surf_resource_state_t
267 tmgr_trace_t state_trace,
268 e_surf_link_sharing_policy_t
269 policy, xbt_dict_t properties);
270 void* (*cpu_create_resource) (const char *name, double power_peak,
272 tmgr_trace_t power_trace,
273 e_surf_resource_state_t state_initial,
274 tmgr_trace_t state_trace,
275 xbt_dict_t cpu_properties);
276 void (*add_traces) (void);
278 } s_surf_model_extension_workstation_t;
283 /** \brief Model datatype
284 * \ingroup SURF_models
286 * Generic data structure for a model. The workstations,
287 * the CPUs and the network links are examples of models.
289 typedef struct surf_model {
290 const char *name; /**< Name of this model */
291 s_surf_action_state_t states; /**< Any living action on this model */
293 e_surf_action_state_t(*action_state_get) (surf_action_t action);
294 /**< Return the state of an action */
295 void (*action_state_set) (surf_action_t action,
296 e_surf_action_state_t state);
297 /**< Change an action state*/
299 double (*action_get_start_time) (surf_action_t action); /**< Return the start time of an action */
300 double (*action_get_finish_time) (surf_action_t action); /**< Return the finish time of an action */
301 int (*action_unref) (surf_action_t action); /**< Specify that we don't use that action anymore */
302 void (*action_cancel) (surf_action_t action); /**< Cancel a running action */
303 void (*action_recycle) (surf_action_t action); /**< Recycle an action */
304 void (*action_data_set) (surf_action_t action, void *data); /**< Set the user data of an action */
305 void (*suspend) (surf_action_t action); /**< Suspend an action */
306 void (*resume) (surf_action_t action); /**< Resume a suspended action */
307 int (*is_suspended) (surf_action_t action); /**< Return whether an action is suspended */
308 void (*set_max_duration) (surf_action_t action, double duration); /**< Set the max duration of an action*/
309 void (*set_priority) (surf_action_t action, double priority); /**< Set the priority of an action */
311 void (*set_category) (surf_action_t action, const char *category); /**< Set the category of an action */
313 double (*get_remains) (surf_action_t action); /**< Get the remains of an action */
314 #ifdef HAVE_LATENCY_BOUND_TRACKING
315 int (*get_latency_limited) (surf_action_t action); /**< Return 1 if action is limited by latency, 0 otherwise */
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;
328 surf_model_t surf_model_init(void);
329 void surf_model_exit(surf_model_t model);
331 static inline void *surf_cpu_resource_by_name(const char *name) {
332 return xbt_lib_get_or_null(host_lib, name, SURF_CPU_LEVEL);
334 static inline void *surf_workstation_resource_by_name(const char *name){
335 return xbt_lib_get_or_null(host_lib, name, SURF_WKS_LEVEL);
337 static inline void *surf_network_resource_by_name(const char *name){
338 return xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL);
340 static inline void *surf_storage_resource_by_name(const char *name){
341 return xbt_lib_get_or_null(storage_lib, name, SURF_STORAGE_LEVEL);
344 typedef struct surf_resource {
347 xbt_dict_t properties;
348 } s_surf_resource_t, *surf_resource_t;
353 typedef struct s_storage_type {
357 xbt_dict_t properties;
358 } s_storage_type_t, *storage_type_t;
360 typedef struct s_mount {
363 } s_mount_t, *mount_t;
365 typedef struct s_content {
372 } s_content_t, *content_t;
375 * Resource which have a metric handled by a maxmin system
380 tmgr_trace_event_t event;
383 typedef struct surf_resource_lmm {
384 s_surf_resource_t generic_resource;
385 lmm_constraint_t constraint;
386 e_surf_resource_state_t state_current;
387 tmgr_trace_event_t state_event;
388 s_surf_metric_t power;
389 } s_surf_resource_lmm_t, *surf_resource_lmm_t;
391 /**************************************/
392 /* Implementations of model object */
393 /**************************************/
396 /** \brief The CPU model
397 * \ingroup SURF_models
399 XBT_PUBLIC_DATA(surf_model_t) surf_cpu_model;
401 /** \brief Initializes the CPU model with the model Cas01
402 * \ingroup SURF_models
404 * By default, this model uses the lazy optimization mechanism that
405 * relies on partial invalidation in LMM and a heap for lazy action update.
406 * You can change this behavior by setting the cpu/optim configuration
407 * variable to a different value.
409 * This function is called by surf_workstation_model_init_CLM03
410 * so you shouldn't have to call it by yourself.
412 * \see surf_workstation_model_init_CLM03()
414 XBT_PUBLIC(void) surf_cpu_model_init_Cas01(void);
416 /** \brief Initializes the CPU model with trace integration [Deprecated]
417 * \ingroup SURF_models
419 * You shouldn't have to call it by yourself.
420 * \see surf_workstation_model_init_CLM03()
422 XBT_PUBLIC(void) surf_cpu_model_init_ti(void);
424 /** \brief This function call the share resources function needed
427 XBT_PUBLIC(double) generic_share_resources(double now);
429 /** \brief This function call the update action state function needed
432 XBT_PUBLIC(void) generic_update_actions_state(double now, double delta);
434 /** \brief The list of all available optimization modes (both for cpu and networks).
435 * \ingroup SURF_models
436 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
438 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
440 /** \brief The list of all available cpu model models
441 * \ingroup SURF_models
443 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
445 XBT_PUBLIC(void) create_workstations(void);
447 /**\brief create new host bypass the parser
452 /** \brief The network model
453 * \ingroup SURF_models
455 * When creating a new API on top on SURF, you shouldn't use the
456 * network model unless you know what you are doing. Only the workstation
457 * model should be accessed because depending on the platform model,
458 * the network model can be NULL.
460 XBT_PUBLIC_DATA(surf_model_t) surf_network_model;
462 /** \brief Same as network model 'LagrangeVelho', only with different correction factors.
463 * \ingroup SURF_models
465 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud
466 * based on the model 'LV08' and different correction factors depending on the communication
467 * size (< 1KiB, < 64KiB, >= 64KiB).
468 * See comments in the code for more information.
470 * \see surf_workstation_model_init_SMPI()
472 XBT_PUBLIC(void) surf_network_model_init_SMPI(void);
474 /** \brief Initializes the platform with the network model 'LegrandVelho'
475 * \ingroup SURF_models
477 * This model is proposed by Arnaud Legrand and Pedro Velho based on
478 * the results obtained with the GTNets simulator for onelink and
479 * dogbone sharing scenarios. See comments in the code for more information.
481 * \see surf_workstation_model_init_LegrandVelho()
483 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho(void);
485 /** \brief Initializes the platform with the network model 'Constant'
486 * \ingroup SURF_models
488 * In this model, the communication time between two network cards is
489 * constant, hence no need for a routing table. This is particularly
490 * usefull when simulating huge distributed algorithms where
491 * scalability is really an issue. This function is called in
492 * conjunction with surf_workstation_model_init_compound.
494 * \see surf_workstation_model_init_compound()
496 XBT_PUBLIC(void) surf_network_model_init_Constant(void);
498 /** \brief Initializes the platform with the network model CM02
499 * \ingroup SURF_models
501 * This function is called by surf_workstation_model_init_CLM03
502 * or by yourself only if you plan using surf_workstation_model_init_compound
503 * See comments in the code for more information.
505 * \see surf_workstation_model_init_CLM03()
507 XBT_PUBLIC(void) surf_network_model_init_CM02(void);
510 * brief initialize the the network model bypassing the XML parser
512 XBT_PUBLIC(void) surf_network_model_init_bypass(const char *id,
517 /** \brief Initializes the platform with the network model GTNETS
518 * \ingroup SURF_models
519 * \param filename XML platform file name
521 * This function is called by surf_workstation_model_init_GTNETS
522 * or by yourself only if you plan using surf_workstation_model_init_compound
524 * \see surf_workstation_model_init_GTNETS()
526 XBT_PUBLIC(void) surf_network_model_init_GTNETS(void);
530 /** \brief Initializes the platform with the network model NS3
531 * \ingroup SURF_models
532 * \param filename XML platform file name
534 * This function is called by surf_workstation_model_init_NS3
535 * or by yourself only if you plan using surf_workstation_model_init_compound
537 * \see surf_workstation_model_init_NS3()
539 XBT_PUBLIC(void) surf_network_model_init_NS3(void);
542 /** \brief Initializes the platform with the network model Reno
543 * \ingroup SURF_models
544 * \param filename XML platform file name
546 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
549 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
550 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
552 * Call this function only if you plan using surf_workstation_model_init_compound.
555 XBT_PUBLIC(void) surf_network_model_init_Reno(void);
557 /** \brief Initializes the platform with the network model Reno2
558 * \ingroup SURF_models
559 * \param filename XML platform file name
561 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
564 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
565 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
567 * Call this function only if you plan using surf_workstation_model_init_compound.
570 XBT_PUBLIC(void) surf_network_model_init_Reno2(void);
572 /** \brief Initializes the platform with the network model Vegas
573 * \ingroup SURF_models
574 * \param filename XML platform file name
576 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent
577 * to the proportional fairness.
580 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
581 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
583 * Call this function only if you plan using surf_workstation_model_init_compound.
586 XBT_PUBLIC(void) surf_network_model_init_Vegas(void);
588 /** \brief The list of all available network model models
589 * \ingroup SURF_models
591 XBT_PUBLIC_DATA(s_surf_model_description_t)
592 surf_network_model_description[];
599 /** \brief The storage model
600 * \ingroup SURF_models
602 XBT_PUBLIC(void) surf_storage_model_init_default(void);
604 /** \brief The list of all available storage modes.
605 * \ingroup SURF_models
606 * This storage mode can be set using --cfg=storage/model:...
608 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
616 /** \brief The workstation model
617 * \ingroup SURF_models
619 * Note that when you create an API on top of SURF,
620 * the workstation model should be the only one you use
621 * because depending on the platform model, the network model and the CPU model
624 XBT_PUBLIC_DATA(surf_model_t) surf_workstation_model;
626 /** \brief Initializes the platform with a compound workstation model
627 * \ingroup SURF_models
629 * This function should be called after a cpu_model and a
630 * network_model have been set up.
633 XBT_PUBLIC(void) surf_workstation_model_init_compound(void);
635 /** \brief Initializes the platform with the current best network and cpu models at hand
636 * \ingroup SURF_models
638 * This platform model seperates the workstation model and the network model.
639 * The workstation model will be initialized with the model compound, the network
640 * model with the model LV08 (with cross traffic support) and the CPU model with
642 * Such model is subject to modification with warning in the ChangeLog so monitor it!
645 XBT_PUBLIC(void) surf_workstation_model_init_current_default(void);
647 /** \brief Initializes the platform with the workstation model CLM03
648 * \ingroup SURF_models
650 * This platform model seperates the workstation model and the network model.
651 * The workstation model will be initialized with the model CLM03, the network
652 * model with the model CM02 and the CPU model with the model Cas01.
653 * In future releases, some other network models will be implemented and will be
654 * combined with the workstation model CLM03.
657 XBT_PUBLIC(void) surf_workstation_model_init_CLM03(void);
659 /** \brief Initializes the platform with the model KCCFLN05
660 * \ingroup SURF_models
662 * With this model, only parallel tasks can be used. Resource sharing
663 * is done by identifying bottlenecks and giving an equal share of
664 * the model to each action.
667 XBT_PUBLIC(void) surf_workstation_model_init_ptask_L07(void);
669 /** \brief The list of all available workstation model models
670 * \ingroup SURF_models
672 XBT_PUBLIC_DATA(s_surf_model_description_t)
673 surf_workstation_model_description[];
675 /** \brief List of initialized models
676 * \ingroup SURF_models
678 XBT_PUBLIC_DATA(xbt_dynar_t) model_list;
680 /*******************************************/
681 /*** SURF Globals **************************/
682 /*******************************************/
683 XBT_PUBLIC_DATA(xbt_cfg_t) _surf_cfg_set;
685 /** \brief Initialize SURF
686 * \ingroup SURF_simulation
687 * \param argc argument number
688 * \param argv arguments
690 * This function has to be called to initialize the common
691 * structures. Then you will have to create the environment by
693 * e.g. surf_workstation_model_init_CLM03()
695 * \see surf_workstation_model_init_CLM03(), surf_workstation_model_init_compound(), surf_exit()
697 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
699 /** \brief Finish simulation initialization
700 * \ingroup SURF_simulation
702 * This function must be called before the first call to surf_solve()
704 XBT_PUBLIC(void) surf_presolve(void);
706 /** \brief Performs a part of the simulation
707 * \ingroup SURF_simulation
708 * \param max_date Maximum date to update the simulation to, or -1
709 * \return the elapsed time, or -1.0 if no event could be executed
711 * This function execute all possible events, update the action states
712 * and returns the time elapsed.
713 * When you call execute or communicate on a model, the corresponding actions
714 * are not executed immediately but only when you call surf_solve.
715 * Note that the returned elapsed time can be zero.
717 XBT_PUBLIC(double) surf_solve(double max_date);
719 /** \brief Return the current time
720 * \ingroup SURF_simulation
722 * Return the current time in millisecond.
724 XBT_PUBLIC(double) surf_get_clock(void);
727 * \ingroup SURF_simulation
733 XBT_PUBLIC(void) surf_exit(void);
735 /* Prototypes of the functions that handle the properties */
736 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set; /* the prop set for the currently parsed element (also used in SIMIX) */
737 XBT_PUBLIC(void) parse_properties(void);
739 /* surf parse file related (public because called from a test suite) */
740 XBT_PUBLIC(void) parse_platform_file(const char *file);
742 /* Stores the sets */
743 XBT_PUBLIC_DATA(xbt_dict_t) set_list;
745 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
746 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
747 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_host_avail;
748 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_power;
749 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_avail;
750 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_bandwidth;
751 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_latency;
754 XBT_PUBLIC(double) get_cpu_power(const char *power);
756 int surf_get_nthreads(void);
757 void surf_set_nthreads(int nthreads);
760 #endif /* _SURF_SURF_H */