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* (*create_resource) (const char *name, double power_peak,
202 tmgr_trace_t power_trace,
204 e_surf_resource_state_t state_initial,
205 tmgr_trace_t state_trace,
206 xbt_dict_t cpu_properties);
207 void (*add_traces) (void);
208 } s_surf_model_extension_cpu_t;
212 /** \ingroup SURF_models
213 * \brief Network model extension public
215 * Public functions specific to the network model
217 typedef struct surf_network_model_extension_public {
218 surf_action_t (*communicate) (sg_routing_edge_t src,
219 sg_routing_edge_t dst,
220 double size, double rate);
221 xbt_dynar_t(*get_route) (void *src, void *dst); //FIXME: kill field? That is done by the routing nowadays
222 double (*get_link_bandwidth) (const void *link);
223 double (*get_link_latency) (const void *link);
224 int (*link_shared) (const void *link);
225 void (*add_traces) (void);
226 void* (*create_resource) (const char *name,
228 tmgr_trace_t bw_trace,
230 tmgr_trace_t lat_trace,
231 e_surf_resource_state_t
233 tmgr_trace_t state_trace,
234 e_surf_link_sharing_policy_t policy,
235 xbt_dict_t properties);
236 } s_surf_model_extension_network_t;
240 /** \ingroup SURF_models
241 * \brief Storage model extension public
243 * Public functions specific to the Storage model.
246 typedef struct surf_storage_model_extension_public {
247 surf_action_t(*open) (void *storage, const char* mount, const char* path, const char* mode);
248 surf_action_t(*close) (void *storage, surf_file_t fp);
249 surf_action_t(*read) (void *storage, void* ptr, double size, size_t nmemb, surf_file_t stream);
250 surf_action_t(*write) (void *storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream);
251 surf_action_t(*stat) (void *storage, surf_file_t stream);
252 surf_action_t(*unlink) (void *storage, surf_file_t stream);
253 surf_action_t(*ls) (void *storage, const char *path);
254 void* (*create_resource) (const char* id, const char* model, const char* type_id, const char *content);
255 } s_surf_model_extension_storage_t;
257 /** \ingroup SURF_models
258 * \brief Workstation model extension public
260 * Public functions specific to the workstation model.
262 typedef struct surf_workstation_model_extension_public {
263 surf_action_t(*execute) (void *workstation, double size); /**< Execute a computation amount on a workstation
264 and create the corresponding action */
265 surf_action_t(*sleep) (void *workstation, double duration); /**< Make a workstation sleep during a given duration */
266 e_surf_resource_state_t(*get_state) (void *workstation); /**< Return the CPU state of a workstation */
267 double (*get_speed) (void *workstation, double load); /**< Return the speed of a workstation */
268 double (*get_available_speed) (void *workstation); /**< Return tha available speed of a workstation */
269 surf_action_t(*communicate) (void *workstation_src, /**< Execute a communication amount between two workstations */
270 void *workstation_dst, double size,
272 // FIXME: kill next field, which duplicates the routing
273 xbt_dynar_t(*get_route) (void *workstation_src, void *workstation_dst); /**< Get the list of links between two ws */
275 surf_action_t(*execute_parallel_task) (int workstation_nb, /**< Execute a parallel task on several workstations */
276 void **workstation_list,
277 double *computation_amount,
278 double *communication_amount,
280 double (*get_link_bandwidth) (const void *link); /**< Return the current bandwidth of a network link */
281 double (*get_link_latency) (const void *link); /**< Return the current latency of a network link */
282 surf_action_t(*open) (void *workstation, const char* storage, const char* path, const char* mode);
283 surf_action_t(*close) (void *workstation, surf_file_t fp);
284 surf_action_t(*read) (void *workstation, void* ptr, size_t size, size_t nmemb, surf_file_t stream);
285 surf_action_t(*write) (void *workstation, const void* ptr, size_t size, size_t nmemb, surf_file_t stream);
286 surf_action_t(*stat) (void *workstation, surf_file_t stream);
287 surf_action_t(*unlink) (void *workstation, surf_file_t stream);
288 surf_action_t(*ls) (void *workstation, const char* mount, const char *path);
290 int (*link_shared) (const void *link);
291 xbt_dict_t(*get_properties) (const void *resource);
292 void* (*link_create_resource) (const char *name,
294 tmgr_trace_t bw_trace,
296 tmgr_trace_t lat_trace,
297 e_surf_resource_state_t
299 tmgr_trace_t state_trace,
300 e_surf_link_sharing_policy_t
301 policy, xbt_dict_t properties);
302 void* (*cpu_create_resource) (const char *name, double power_peak,
304 tmgr_trace_t power_trace,
305 e_surf_resource_state_t state_initial,
306 tmgr_trace_t state_trace,
307 xbt_dict_t cpu_properties);
308 void (*add_traces) (void);
310 } s_surf_model_extension_workstation_t;
315 /** \ingroup SURF_models
316 * \brief Model datatype
318 * Generic data structure for a model. The workstations,
319 * the CPUs and the network links are examples of models.
321 typedef struct surf_model {
322 const char *name; /**< Name of this model */
323 s_surf_action_state_t states; /**< Any living action on this model */
325 e_surf_action_state_t(*action_state_get) (surf_action_t action);
326 /**< Return the state of an action */
327 void (*action_state_set) (surf_action_t action,
328 e_surf_action_state_t state);
329 /**< Change an action state*/
331 double (*action_get_start_time) (surf_action_t action); /**< Return the start time of an action */
332 double (*action_get_finish_time) (surf_action_t action); /**< Return the finish time of an action */
333 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. */
334 void (*action_cancel) (surf_action_t action); /**< Cancel a running action */
335 void (*action_recycle) (surf_action_t action); /**< Recycle an action */
336 void (*action_data_set) (surf_action_t action, void *data); /**< Set the user data of an action */
337 void (*suspend) (surf_action_t action); /**< Suspend an action */
338 void (*resume) (surf_action_t action); /**< Resume a suspended action */
339 int (*is_suspended) (surf_action_t action); /**< Return whether an action is suspended */
340 void (*set_max_duration) (surf_action_t action, double duration); /**< Set the max duration of an action*/
341 void (*set_priority) (surf_action_t action, double priority); /**< Set the priority of an action */
343 void (*set_category) (surf_action_t action, const char *category); /**< Set the category of an action */
345 double (*get_remains) (surf_action_t action); /**< Get the remains of an action */
346 #ifdef HAVE_LATENCY_BOUND_TRACKING
347 int (*get_latency_limited) (surf_action_t action); /**< Return 1 if action is limited by latency, 0 otherwise */
350 void (*gap_remove) (surf_action_lmm_t action);
352 surf_model_private_t model_private;
355 s_surf_model_extension_cpu_t cpu;
356 s_surf_model_extension_network_t network;
357 s_surf_model_extension_storage_t storage;
358 s_surf_model_extension_workstation_t workstation;
359 /*******************************************/
360 /* TUTORIAL: New model */
361 s_surf_model_extension_new_model_t new_model;
362 /*******************************************/
366 surf_model_t surf_model_init(void);
367 void surf_model_exit(surf_model_t model);
369 static inline void *surf_cpu_resource_by_name(const char *name) {
370 return xbt_lib_get_or_null(host_lib, name, SURF_CPU_LEVEL);
372 static inline void *surf_workstation_resource_by_name(const char *name){
373 return xbt_lib_get_or_null(host_lib, name, SURF_WKS_LEVEL);
375 static inline void *surf_storage_resource_by_name(const char *name){
376 return xbt_lib_get_or_null(storage_lib, name, SURF_STORAGE_LEVEL);
379 typedef struct surf_resource {
382 xbt_dict_t properties;
383 } s_surf_resource_t, *surf_resource_t;
386 * Resource which have a metric handled by a maxmin system
391 tmgr_trace_event_t event;
394 typedef struct surf_resource_lmm {
395 s_surf_resource_t generic_resource;
396 lmm_constraint_t constraint;
397 e_surf_resource_state_t state_current;
398 tmgr_trace_event_t state_event;
399 s_surf_metric_t power;
400 } s_surf_resource_lmm_t, *surf_resource_lmm_t;
402 /**************************************/
403 /* Implementations of model object */
404 /**************************************/
407 /** \ingroup SURF_models
408 * \brief The CPU model
410 XBT_PUBLIC_DATA(surf_model_t) surf_cpu_model;
412 /** \ingroup SURF_models
413 * \brief Initializes the CPU model with the model Cas01
415 * By default, this model uses the lazy optimization mechanism that
416 * relies on partial invalidation in LMM and a heap for lazy action update.
417 * You can change this behavior by setting the cpu/optim configuration
418 * variable to a different value.
420 * This function is called by surf_workstation_model_init_CLM03
421 * so you shouldn't have to call it by yourself.
423 * \see surf_workstation_model_init_CLM03()
425 XBT_PUBLIC(void) surf_cpu_model_init_Cas01(void);
427 /** \ingroup SURF_models
428 * \brief Initializes the CPU model with trace integration [Deprecated]
430 * You shouldn't have to call it by yourself.
431 * \see surf_workstation_model_init_CLM03()
433 XBT_PUBLIC(void) surf_cpu_model_init_ti(void);
435 /** \brief This function call the share resources function needed
438 XBT_PUBLIC(double) generic_share_resources(double now);
440 /** \brief This function call the update action state function needed
443 XBT_PUBLIC(void) generic_update_actions_state(double now, double delta);
445 /** \ingroup SURF_models
446 * \brief The list of all available optimization modes (both for cpu and networks).
447 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
449 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
451 /** \ingroup SURF_models
452 * \brief The list of all available cpu model models
454 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
456 XBT_PUBLIC(void) create_workstations(void);
458 /**\brief create new host bypass the parser
463 /** \ingroup SURF_models
464 * \brief The network model
466 * When creating a new API on top on SURF, you shouldn't use the
467 * network model unless you know what you are doing. Only the workstation
468 * model should be accessed because depending on the platform model,
469 * the network model can be NULL.
471 XBT_PUBLIC_DATA(surf_model_t) surf_network_model;
473 /** \ingroup SURF_models
474 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
476 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud
477 * based on the model 'LV08' and different correction factors depending on the communication
478 * size (< 1KiB, < 64KiB, >= 64KiB).
479 * See comments in the code for more information.
481 * \see surf_workstation_model_init_SMPI()
483 XBT_PUBLIC(void) surf_network_model_init_SMPI(void);
485 /** \ingroup SURF_models
486 * \brief Initializes the platform with the network model 'LegrandVelho'
488 * This model is proposed by Arnaud Legrand and Pedro Velho based on
489 * the results obtained with the GTNets simulator for onelink and
490 * dogbone sharing scenarios. See comments in the code for more information.
492 * \see surf_workstation_model_init_LegrandVelho()
494 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho(void);
496 /** \ingroup SURF_models
497 * \brief Initializes the platform with the network model 'Constant'
499 * In this model, the communication time between two network cards is
500 * constant, hence no need for a routing table. This is particularly
501 * usefull when simulating huge distributed algorithms where
502 * scalability is really an issue. This function is called in
503 * conjunction with surf_workstation_model_init_compound.
505 * \see surf_workstation_model_init_compound()
507 XBT_PUBLIC(void) surf_network_model_init_Constant(void);
509 /** \ingroup SURF_models
510 * \brief Initializes the platform with the network model CM02
512 * This function is called by surf_workstation_model_init_CLM03
513 * or by yourself only if you plan using surf_workstation_model_init_compound
514 * See comments in the code for more information.
516 * \see surf_workstation_model_init_CLM03()
518 XBT_PUBLIC(void) surf_network_model_init_CM02(void);
521 * brief initialize the the network model bypassing the XML parser
523 XBT_PUBLIC(void) surf_network_model_init_bypass(const char *id,
528 /** \ingroup SURF_models
529 * \brief Initializes the platform with the network model GTNETS
530 * \param filename XML platform file name
532 * This function is called by surf_workstation_model_init_GTNETS
533 * or by yourself only if you plan using surf_workstation_model_init_compound
535 * \see surf_workstation_model_init_GTNETS()
537 XBT_PUBLIC(void) surf_network_model_init_GTNETS(void);
541 /** \ingroup SURF_models
542 * \brief Initializes the platform with the network model NS3
543 * \param filename XML platform file name
545 * This function is called by surf_workstation_model_init_NS3
546 * or by yourself only if you plan using surf_workstation_model_init_compound
548 * \see surf_workstation_model_init_NS3()
550 XBT_PUBLIC(void) surf_network_model_init_NS3(void);
553 /** \ingroup SURF_models
554 * \brief Initializes the platform with the network model Reno
555 * \param filename XML platform file name
557 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
560 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
561 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
563 * Call this function only if you plan using surf_workstation_model_init_compound.
566 XBT_PUBLIC(void) surf_network_model_init_Reno(void);
568 /** \ingroup SURF_models
569 * \brief Initializes the platform with the network model Reno2
570 * \param filename XML platform file name
572 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
575 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
576 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
578 * Call this function only if you plan using surf_workstation_model_init_compound.
581 XBT_PUBLIC(void) surf_network_model_init_Reno2(void);
583 /** \ingroup SURF_models
584 * \brief Initializes the platform with the network model Vegas
585 * \param filename XML platform file name
587 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent
588 * to the proportional fairness.
591 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
592 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
594 * Call this function only if you plan using surf_workstation_model_init_compound.
597 XBT_PUBLIC(void) surf_network_model_init_Vegas(void);
599 /** \ingroup SURF_models
600 * \brief The list of all available network model models
602 XBT_PUBLIC_DATA(s_surf_model_description_t)
603 surf_network_model_description[];
605 /** \ingroup SURF_models
606 * \brief The storage model
608 XBT_PUBLIC(void) surf_storage_model_init_default(void);
610 /** \ingroup SURF_models
611 * \brief The list of all available storage modes.
612 * This storage mode can be set using --cfg=storage/model:...
614 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
616 /** \ingroup SURF_models
617 * \brief The workstation model
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 /** \ingroup SURF_models
627 * \brief Initializes the platform with a compound workstation model
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 /** \ingroup SURF_models
636 * \brief Initializes the platform with the current best network and cpu models at hand
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 /** \ingroup SURF_models
648 * \brief Initializes the platform with the workstation model CLM03
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 /** \ingroup SURF_models
660 * \brief Initializes the platform with the model KCCFLN05
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 /** \ingroup SURF_models
670 * \brief The list of all available workstation model models
672 XBT_PUBLIC_DATA(s_surf_model_description_t)
673 surf_workstation_model_description[];
675 /*******************************************
676 * TUTORIAL: New model
678 XBT_PUBLIC(void) surf_new_model_init_default(void);
679 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_new_model_description[];
680 /*******************************************/
682 /** \ingroup SURF_models
683 * \brief List of initialized models
685 XBT_PUBLIC_DATA(xbt_dynar_t) model_list;
687 /*******************************************/
688 /*** SURF Globals **************************/
689 /*******************************************/
691 /** \ingroup SURF_simulation
692 * \brief Initialize SURF
693 * \param argc argument number
694 * \param argv arguments
696 * This function has to be called to initialize the common
697 * structures. Then you will have to create the environment by
699 * e.g. surf_workstation_model_init_CLM03()
701 * \see surf_workstation_model_init_CLM03(), surf_workstation_model_init_compound(), surf_exit()
703 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
705 /** \ingroup SURF_simulation
706 * \brief Finish simulation initialization
708 * This function must be called before the first call to surf_solve()
710 XBT_PUBLIC(void) surf_presolve(void);
712 /** \ingroup SURF_simulation
713 * \brief Performs a part of the simulation
714 * \param max_date Maximum date to update the simulation to, or -1
715 * \return the elapsed time, or -1.0 if no event could be executed
717 * This function execute all possible events, update the action states
718 * and returns the time elapsed.
719 * When you call execute or communicate on a model, the corresponding actions
720 * are not executed immediately but only when you call surf_solve.
721 * Note that the returned elapsed time can be zero.
723 XBT_PUBLIC(double) surf_solve(double max_date);
725 /** \ingroup SURF_simulation
726 * \brief Return the current time
728 * Return the current time in millisecond.
730 XBT_PUBLIC(double) surf_get_clock(void);
732 /** \ingroup SURF_simulation
739 XBT_PUBLIC(void) surf_exit(void);
741 /* Prototypes of the functions that handle the properties */
742 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set; /* the prop set for the currently parsed element (also used in SIMIX) */
743 XBT_PUBLIC(void) parse_properties(void);
745 /* surf parse file related (public because called from a test suite) */
746 XBT_PUBLIC(void) parse_platform_file(const char *file);
748 /* Stores the sets */
749 XBT_PUBLIC_DATA(xbt_dict_t) set_list;
751 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
752 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
753 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_host_avail;
754 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_power;
755 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_avail;
756 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_bandwidth;
757 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_latency;
760 XBT_PUBLIC(double) get_cpu_power(const char *power);
762 XBT_PUBLIC(xbt_dict_t) get_as_router_properties(const char* name);
764 int surf_get_nthreads(void);
765 void surf_set_nthreads(int nthreads);
767 void surf_watched_hosts(void);
770 * Returns the initial path. On Windows the initial path is
771 * the current directory for the current process in the other
772 * case the function returns "./" that represents the current
773 * directory on Unix/Linux platforms.
775 const char *__surf_get_initial_path(void);
778 #endif /* _SURF_SURF_H */