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"
13 #include "xbt/graph.h"
15 #include "xbt/file_stat.h"
17 #include "xbt/config.h"
18 #include "surf/datatypes.h"
20 #include "surf/surf_routing.h"
21 #include "simgrid/platf_interface.h"
24 /* Actions and models are highly connected structures... */
26 /* user-visible parameters */
27 extern double sg_tcp_gamma;
28 extern double sg_sender_gap;
29 extern double sg_latency_factor;
30 extern double sg_bandwidth_factor;
31 extern double sg_weight_S_parameter;
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{
84 typedef struct surf_resource {
87 xbt_dict_t properties;
88 } s_surf_resource_t, *surf_resource_t;
90 /** \ingroup SURF_actions
91 * \brief Action structure
93 * Never create s_surf_action_t by yourself ! The actions are created
94 * on the fly when you call execute or communicate on a model.
96 * \see e_surf_action_state_t
98 typedef struct surf_action {
99 s_xbt_swag_hookup_t state_hookup;
100 xbt_swag_t state_set;
101 double cost; /**< cost */
102 double priority; /**< priority (1.0 by default) */
103 double max_duration; /**< max_duration (may fluctuate until
104 the task is completed) */
105 double remains; /**< How much of that cost remains to
106 * be done in the currently running task */
107 #ifdef HAVE_LATENCY_BOUND_TRACKING
108 int latency_limited; /**< Set to 1 if is limited by latency, 0 otherwise */
111 double start; /**< start time */
112 double finish; /**< finish time : this is modified during the run
113 * and fluctuates until the task is completed */
114 void *data; /**< for your convenience */
117 /* The previous name was model_type. For VM support, we have to distinguish a
118 * model type and its model object. Thus, we use model_obj here. The type of
119 * a model object is available by looking at the inside of the model object. */
120 surf_model_t model_obj; /**< the surf model object */
123 char *category; /**< tracing category for categorized resource utilization monitoring */
125 surf_file_t file; /**< surf_file_t for storage model */
126 s_file_stat_t stat; /**< surf_file_t for storage model */
130 typedef struct surf_action_lmm {
131 s_surf_action_t generic_action;
132 lmm_variable_t variable;
134 s_xbt_swag_hookup_t action_list_hookup;
138 enum heap_action_type hat;
139 } s_surf_action_lmm_t, *surf_action_lmm_t;
141 /** \ingroup SURF_actions
142 * \brief Action states
146 * \see surf_action_t, surf_action_state_t
149 SURF_ACTION_READY = 0, /**< Ready */
150 SURF_ACTION_RUNNING, /**< Running */
151 SURF_ACTION_FAILED, /**< Task Failure */
152 SURF_ACTION_DONE, /**< Completed */
153 SURF_ACTION_TO_FREE, /**< Action to free in next cleanup */
154 SURF_ACTION_NOT_IN_THE_SYSTEM
155 /**< Not in the system anymore. Why did you ask ? */
156 } e_surf_action_state_t;
158 /** \ingroup SURF_actions
159 * \brief Action state sets
161 * This structure contains some sets of actions.
162 * It provides a fast access to the actions in each state.
164 * \see surf_action_t, e_surf_action_state_t
166 typedef struct surf_action_state {
167 xbt_swag_t ready_action_set;
168 /**< Actions in state SURF_ACTION_READY */
169 xbt_swag_t running_action_set;
170 /**< Actions in state SURF_ACTION_RUNNING */
171 xbt_swag_t failed_action_set;
172 /**< Actions in state SURF_ACTION_FAILED */
173 xbt_swag_t done_action_set;
174 /**< Actions in state SURF_ACTION_DONE */
175 } s_surf_action_state_t, *surf_action_state_t;
177 /***************************/
178 /* Generic model object */
179 /***************************/
180 typedef struct s_routing_platf s_routing_platf_t, *routing_platf_t;
181 XBT_PUBLIC_DATA(routing_platf_t) routing_platf;
183 /*******************************************
184 * TUTORIAL: New model
185 * New model extension public
186 * Public functions specific to a New model.
188 typedef struct surf_new_model_extension_public {
189 surf_action_t(*fct) ();
190 void* (*create_resource) ();
191 } s_surf_model_extension_new_model_t;
192 /*******************************************/
194 /** \ingroup SURF_models
195 * \brief Private data available on all models
197 typedef struct surf_model_private *surf_model_private_t;
201 /** \ingroup SURF_models
202 * \brief CPU model extension public
204 * Public functions specific to the CPU model.
206 typedef struct surf_cpu_model_extension_public {
207 surf_action_t(*execute) (void *cpu, double size);
208 surf_action_t(*sleep) (void *cpu, double duration);
209 e_surf_resource_state_t(*get_state) (void *cpu);
210 double (*get_speed) (void *cpu, double load);
211 double (*get_available_speed) (void *cpu);
212 void (*add_traces) (void);
213 } s_surf_model_extension_cpu_t;
217 /** \ingroup SURF_models
218 * \brief Network model extension public
220 * Public functions specific to the network model
222 typedef struct surf_network_model_extension_public {
223 surf_action_t (*communicate) (sg_routing_edge_t src,
224 sg_routing_edge_t dst,
225 double size, double rate);
226 xbt_dynar_t(*get_route) (void *src, void *dst); //FIXME: kill field? That is done by the routing nowadays
227 double (*get_link_bandwidth) (const void *link);
228 double (*get_link_latency) (const void *link);
229 int (*link_shared) (const void *link);
230 void (*add_traces) (void);
231 } s_surf_model_extension_network_t;
235 /** \ingroup SURF_models
236 * \brief Storage model extension public
238 * Public functions specific to the Storage model.
241 typedef struct surf_storage_model_extension_public {
242 surf_action_t(*open) (void *storage, const char* mount, const char* path, const char* mode);
243 surf_action_t(*close) (void *storage, surf_file_t fp);
244 surf_action_t(*read) (void *storage, void* ptr, double size, size_t nmemb, surf_file_t stream);
245 surf_action_t(*write) (void *storage, const void* ptr, size_t size, size_t nmemb, surf_file_t stream);
246 surf_action_t(*stat) (void *storage, surf_file_t stream);
247 surf_action_t(*unlink) (void *storage, surf_file_t stream);
248 surf_action_t(*ls) (void *storage, const char *path);
249 } s_surf_model_extension_storage_t;
251 /** \ingroup SURF_models
252 * \brief Workstation model extension public
254 * Public functions specific to the workstation model.
256 typedef struct surf_workstation_model_extension_public {
257 /* This points to the surf cpu model object bound to the workstation model. */
258 surf_model_t cpu_model;
260 surf_action_t(*execute) (void *workstation, double size); /**< Execute a computation amount on a workstation
261 and create the corresponding action */
262 surf_action_t(*sleep) (void *workstation, double duration); /**< Make a workstation sleep during a given duration */
263 e_surf_resource_state_t(*get_state) (void *workstation); /**< Return the CPU state of a workstation */
264 double (*get_speed) (void *workstation, double load); /**< Return the speed of a workstation */
265 double (*get_available_speed) (void *workstation); /**< Return tha available speed of a workstation */
266 surf_action_t(*communicate) (void *workstation_src, /**< Execute a communication amount between two workstations */
267 void *workstation_dst, double size,
269 // FIXME: kill next field, which duplicates the routing
270 xbt_dynar_t(*get_route) (void *workstation_src, void *workstation_dst); /**< Get the list of links between two ws */
272 surf_action_t(*execute_parallel_task) (int workstation_nb, /**< Execute a parallel task on several workstations */
273 void **workstation_list,
274 double *computation_amount,
275 double *communication_amount,
277 double (*get_link_bandwidth) (const void *link); /**< Return the current bandwidth of a network link */
278 double (*get_link_latency) (const void *link); /**< Return the current latency of a network link */
279 surf_action_t(*open) (void *workstation, const char* storage, const char* path, const char* mode);
280 surf_action_t(*close) (void *workstation, surf_file_t fp);
281 surf_action_t(*read) (void *workstation, void* ptr, size_t size, size_t nmemb, surf_file_t stream);
282 surf_action_t(*write) (void *workstation, const void* ptr, size_t size, size_t nmemb, surf_file_t stream);
283 surf_action_t(*stat) (void *workstation, surf_file_t stream);
284 surf_action_t(*unlink) (void *workstation, surf_file_t stream);
285 surf_action_t(*ls) (void *workstation, const char* mount, const char *path);
287 int (*link_shared) (const void *link);
288 xbt_dict_t(*get_properties) (const void *resource);
289 void (*add_traces) (void);
291 void (*get_params) (void *ind_vm_ws, ws_params_t param);
292 void (*set_params) (void *ind_vm_ws, ws_params_t param);
293 xbt_dynar_t (*get_vms) (void *ind_vm_ws);
295 } s_surf_model_extension_workstation_t;
297 typedef struct surf_vm_workstation_model_extension_public {
298 /* The vm workstation model object has all members of the physical machine
299 * workstation model object. If these members are correctly initialized also
300 * in the vm workstation model object, we can access the vm workstation model
301 * object as if it is the pm workstatoin model object.
303 * But, it's not so clean. Think it again later.
305 s_surf_model_extension_workstation_t basic;
307 // start does not appear here as it corresponds to turn the state from created to running (see smx_vm.c)
309 void (*create) (const char *name, void *ind_phys_workstation); // First operation of the VM model
310 void (*destroy) (void *ind_vm_ws); // will be vm_ws_destroy(), which destroies the vm-workstation-specific data
312 void (*suspend) (void *ind_vm_ws);
313 void (*resume) (void *ind_vm_ws);
315 void (*save) (void *ind_vm_ws);
316 void (*restore) (void *ind_vm_ws);
318 void (*migrate) (void *ind_vm_ws, void *ind_vm_ws_dest); // will be vm_ws_migrate()
320 int (*get_state) (void *ind_vm_ws);
321 void (*set_state) (void *ind_vm_ws, int state);
323 void * (*get_pm) (void *ind_vm_ws); // will be vm_ws_get_pm()
325 } s_surf_model_extension_vm_workstation_t;
327 /** \ingroup SURF_models
330 * The type of the model object. For example, we will have two model objects
331 * of the surf cpu model. One is for physical machines, and the other is for
336 SURF_MODEL_TYPE_CPU = 0,
337 SURF_MODEL_TYPE_NETWORK,
338 SURF_MODEL_TYPE_STORAGE,
339 SURF_MODEL_TYPE_WORKSTATION,
340 SURF_MODEL_TYPE_VM_WORKSTATION,
341 SURF_MODEL_TYPE_NEW_MODEL
342 } e_surf_model_type_t;
344 /** \ingroup SURF_models
345 * \brief Model datatype
347 * Generic data structure for a model. The workstations,
348 * the CPUs and the network links are examples of models.
350 typedef struct surf_model {
351 const char *name; /**< Name of this model */
352 s_surf_action_state_t states; /**< Any living action on this model */
354 e_surf_model_type_t type; /**< See e_surf_model_type_t */
356 e_surf_action_state_t(*action_state_get) (surf_action_t action);
357 /**< Return the state of an action */
358 void (*action_state_set) (surf_action_t action,
359 e_surf_action_state_t state);
360 /**< Change an action state*/
362 double (*action_get_start_time) (surf_action_t action); /**< Return the start time of an action */
363 double (*action_get_finish_time) (surf_action_t action); /**< Return the finish time of an action */
364 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. */
365 void (*action_cancel) (surf_action_t action); /**< Cancel a running action */
366 void (*action_recycle) (surf_action_t action); /**< Recycle an action */
367 void (*action_data_set) (surf_action_t action, void *data); /**< Set the user data of an action */
368 void (*suspend) (surf_action_t action); /**< Suspend an action */
369 void (*resume) (surf_action_t action); /**< Resume a suspended action */
370 int (*is_suspended) (surf_action_t action); /**< Return whether an action is suspended */
371 void (*set_max_duration) (surf_action_t action, double duration); /**< Set the max duration of an action*/
372 void (*set_priority) (surf_action_t action, double priority); /**< Set the priority of an action */
374 void (*set_category) (surf_action_t action, const char *category); /**< Set the category of an action */
376 double (*get_remains) (surf_action_t action); /**< Get the remains of an action */
377 #ifdef HAVE_LATENCY_BOUND_TRACKING
378 int (*get_latency_limited) (surf_action_t action); /**< Return 1 if action is limited by latency, 0 otherwise */
381 void (*gap_remove) (surf_action_lmm_t action);
383 surf_model_private_t model_private;
386 s_surf_model_extension_cpu_t cpu;
387 s_surf_model_extension_network_t network;
388 s_surf_model_extension_storage_t storage;
389 s_surf_model_extension_workstation_t workstation;
390 // TODO Implement the corresponding model
391 s_surf_model_extension_vm_workstation_t vm_workstation;
392 /*******************************************/
393 /* TUTORIAL: New model */
394 s_surf_model_extension_new_model_t new_model;
395 /*******************************************/
399 surf_model_t surf_model_init(void);
400 void surf_model_exit(surf_model_t model);
402 static inline void *surf_cpu_resource_priv(const void *host) {
403 return xbt_lib_get_level((void *)host, SURF_CPU_LEVEL);
405 static inline void *surf_workstation_resource_priv(const void *host){
406 return xbt_lib_get_level((void *)host, SURF_WKS_LEVEL);
408 static inline void *surf_storage_resource_priv(const void *host){
409 return xbt_lib_get_level((void *)host, SURF_STORAGE_LEVEL);
412 static inline void *surf_cpu_resource_by_name(const char *name) {
413 return xbt_lib_get_elm_or_null(host_lib, name);
415 static inline void *surf_workstation_resource_by_name(const char *name){
416 return xbt_lib_get_elm_or_null(host_lib, name);
418 static inline void *surf_storage_resource_by_name(const char *name){
419 return xbt_lib_get_elm_or_null(storage_lib, name);
422 static inline surf_model_t surf_resource_model(const void *host, int level) {
423 /* If level is SURF_WKS_LEVEL, ws is a workstation_CLM03 object. It has
424 * surf_resource at the generic_resource field. */
425 surf_resource_t ws = xbt_lib_get_level((void *) host, level);
432 * Resource which have a metric handled by a maxmin system
437 tmgr_trace_event_t event;
440 typedef struct surf_resource_lmm {
441 s_surf_resource_t generic_resource;
442 lmm_constraint_t constraint;
443 e_surf_resource_state_t state_current;
444 tmgr_trace_event_t state_event;
445 s_surf_metric_t power;
446 } s_surf_resource_lmm_t, *surf_resource_lmm_t;
448 /**************************************/
449 /* Implementations of model object */
450 /**************************************/
453 /** \ingroup SURF_models
454 * \brief The CPU model object for the physical machine layer
456 XBT_PUBLIC_DATA(surf_model_t) surf_cpu_model_pm;
458 /** \ingroup SURF_models
459 * \brief The CPU model object for the virtual machine layer
461 XBT_PUBLIC_DATA(surf_model_t) surf_cpu_model_vm;
463 /** \ingroup SURF_models
464 * \brief Initializes the CPU model with the model Cas01
466 * By default, this model uses the lazy optimization mechanism that
467 * relies on partial invalidation in LMM and a heap for lazy action update.
468 * You can change this behavior by setting the cpu/optim configuration
469 * variable to a different value.
471 * You shouldn't have to call it by yourself.
473 XBT_PUBLIC(void) surf_cpu_model_init_Cas01(void);
475 /** \ingroup SURF_models
476 * \brief Initializes the CPU model with trace integration [Deprecated]
478 * You shouldn't have to call it by yourself.
480 XBT_PUBLIC(surf_model_t) surf_cpu_model_init_ti(void);
482 /** \ingroup SURF_models
483 * \brief The list of all available optimization modes (both for cpu and networks).
484 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
486 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
488 /** \ingroup SURF_models
489 * \brief The list of all available cpu model models
491 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
493 /**\brief create new host bypass the parser
498 /** \ingroup SURF_models
499 * \brief The network model
501 * When creating a new API on top on SURF, you shouldn't use the
502 * network model unless you know what you are doing. Only the workstation
503 * model should be accessed because depending on the platform model,
504 * the network model can be NULL.
506 XBT_PUBLIC_DATA(surf_model_t) surf_network_model;
508 /** \ingroup SURF_models
509 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
511 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud
512 * based on the model 'LV08' and different correction factors depending on the communication
513 * size (< 1KiB, < 64KiB, >= 64KiB).
514 * See comments in the code for more information.
516 * \see surf_workstation_model_init_SMPI()
518 XBT_PUBLIC(void) surf_network_model_init_SMPI(void);
520 /** \ingroup SURF_models
521 * \brief Initializes the platform with the network model 'LegrandVelho'
523 * This model is proposed by Arnaud Legrand and Pedro Velho based on
524 * the results obtained with the GTNets simulator for onelink and
525 * dogbone sharing scenarios. See comments in the code for more information.
527 * \see surf_workstation_model_init_LegrandVelho()
529 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho(void);
531 /** \ingroup SURF_models
532 * \brief Initializes the platform with the network model 'Constant'
534 * In this model, the communication time between two network cards is
535 * constant, hence no need for a routing table. This is particularly
536 * usefull when simulating huge distributed algorithms where
537 * scalability is really an issue. This function is called in
538 * conjunction with surf_workstation_model_init_compound.
540 * \see surf_workstation_model_init_compound()
542 XBT_PUBLIC(void) surf_network_model_init_Constant(void);
544 /** \ingroup SURF_models
545 * \brief Initializes the platform with the network model CM02
547 * You sould call this function by yourself only if you plan using
548 * surf_workstation_model_init_compound.
549 * See comments in the code for more information.
551 XBT_PUBLIC(void) surf_network_model_init_CM02(void);
554 /** \ingroup SURF_models
555 * \brief Initializes the platform with the network model GTNETS
556 * \param filename XML platform file name
558 * This function is called by surf_workstation_model_init_GTNETS
559 * or by yourself only if you plan using surf_workstation_model_init_compound
561 * \see surf_workstation_model_init_GTNETS()
563 XBT_PUBLIC(void) surf_network_model_init_GTNETS(void);
567 /** \ingroup SURF_models
568 * \brief Initializes the platform with the network model NS3
569 * \param filename XML platform file name
571 * This function is called by surf_workstation_model_init_NS3
572 * or by yourself only if you plan using surf_workstation_model_init_compound
574 * \see surf_workstation_model_init_NS3()
576 XBT_PUBLIC(void) surf_network_model_init_NS3(void);
579 /** \ingroup SURF_models
580 * \brief Initializes the platform with the network model Reno
581 * \param filename XML platform file name
583 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
586 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
587 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
589 * Call this function only if you plan using surf_workstation_model_init_compound.
592 XBT_PUBLIC(void) surf_network_model_init_Reno(void);
594 /** \ingroup SURF_models
595 * \brief Initializes the platform with the network model Reno2
596 * \param filename XML platform file name
598 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
601 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
602 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
604 * Call this function only if you plan using surf_workstation_model_init_compound.
607 XBT_PUBLIC(void) surf_network_model_init_Reno2(void);
609 /** \ingroup SURF_models
610 * \brief Initializes the platform with the network model Vegas
611 * \param filename XML platform file name
613 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent
614 * to the proportional fairness.
617 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
618 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
620 * Call this function only if you plan using surf_workstation_model_init_compound.
623 XBT_PUBLIC(void) surf_network_model_init_Vegas(void);
625 /** \ingroup SURF_models
626 * \brief The list of all available network model models
628 XBT_PUBLIC_DATA(s_surf_model_description_t)
629 surf_network_model_description[];
631 /** \ingroup SURF_models
632 * \brief The storage model
634 XBT_PUBLIC(void) surf_storage_model_init_default(void);
636 /** \ingroup SURF_models
637 * \brief The list of all available storage modes.
638 * This storage mode can be set using --cfg=storage/model:...
640 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
642 /** \ingroup SURF_models
643 * \brief The workstation model
645 * Note that when you create an API on top of SURF,
646 * the workstation model should be the only one you use
647 * because depending on the platform model, the network model and the CPU model
650 XBT_PUBLIC_DATA(surf_model_t) surf_workstation_model;
652 /** \ingroup SURF_models
653 * \brief The vm_workstation model
655 * Note that when you create an API on top of SURF,
656 * the vm_workstation model should be the only one you use
657 * because depending on the platform model, the network model and the CPU model
660 XBT_PUBLIC_DATA(surf_model_t) surf_vm_workstation_model;
662 /** \ingroup SURF_models
663 * \brief Initializes the platform with a compound workstation model
665 * This function should be called after a cpu_model and a
666 * network_model have been set up.
669 XBT_PUBLIC(void) surf_workstation_model_init_compound(void);
671 /** \ingroup SURF_models
672 * \brief Initializes the platform with the current best network and cpu models at hand
674 * This platform model seperates the workstation model and the network model.
675 * The workstation model will be initialized with the model compound, the network
676 * model with the model LV08 (with cross traffic support) and the CPU model with
678 * Such model is subject to modification with warning in the ChangeLog so monitor it!
681 XBT_PUBLIC(void) surf_workstation_model_init_current_default(void);
683 /** \ingroup SURF_models
684 * \brief Initializes the platform with the model KCCFLN05
686 * With this model, only parallel tasks can be used. Resource sharing
687 * is done by identifying bottlenecks and giving an equal share of
688 * the model to each action.
691 XBT_PUBLIC(void) surf_workstation_model_init_ptask_L07(void);
693 /** \ingroup SURF_models
694 * \brief The list of all available workstation model models
696 XBT_PUBLIC_DATA(s_surf_model_description_t)
697 surf_workstation_model_description[];
699 /*******************************************
700 * TUTORIAL: New model
702 XBT_PUBLIC(void) surf_new_model_init_default(void);
703 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_new_model_description[];
704 /*******************************************/
706 /** \ingroup SURF_models
707 * \brief List of initialized models
709 XBT_PUBLIC_DATA(xbt_dynar_t) model_list;
710 XBT_PUBLIC_DATA(xbt_dynar_t) model_list_invoke;
712 /*******************************************/
713 /*** SURF Globals **************************/
714 /*******************************************/
716 /** \ingroup SURF_simulation
717 * \brief Initialize SURF
718 * \param argc argument number
719 * \param argv arguments
721 * This function has to be called to initialize the common
722 * structures. Then you will have to create the environment by
724 * e.g. surf_workstation_model_init_CM02()
726 * \see surf_workstation_model_init_CM02(), surf_workstation_model_init_compound(), surf_exit()
728 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
730 /** \ingroup SURF_simulation
731 * \brief Finish simulation initialization
733 * This function must be called before the first call to surf_solve()
735 XBT_PUBLIC(void) surf_presolve(void);
737 /** \ingroup SURF_simulation
738 * \brief Performs a part of the simulation
739 * \param max_date Maximum date to update the simulation to, or -1
740 * \return the elapsed time, or -1.0 if no event could be executed
742 * This function execute all possible events, update the action states
743 * and returns the time elapsed.
744 * When you call execute or communicate on a model, the corresponding actions
745 * are not executed immediately but only when you call surf_solve.
746 * Note that the returned elapsed time can be zero.
748 XBT_PUBLIC(double) surf_solve(double max_date);
750 /** \ingroup SURF_simulation
751 * \brief Return the current time
753 * Return the current time in millisecond.
755 XBT_PUBLIC(double) surf_get_clock(void);
757 /** \ingroup SURF_simulation
764 XBT_PUBLIC(void) surf_exit(void);
766 /* Prototypes of the functions that handle the properties */
767 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set; /* the prop set for the currently parsed element (also used in SIMIX) */
769 /* surf parse file related (public because called from a test suite) */
770 XBT_PUBLIC(void) parse_platform_file(const char *file);
772 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
773 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
774 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_host_avail;
775 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_power;
776 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_avail;
777 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_bandwidth;
778 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_latency;
781 XBT_PUBLIC(double) get_cpu_power(const char *power);
783 XBT_PUBLIC(xbt_dict_t) get_as_router_properties(const char* name);
785 int surf_get_nthreads(void);
786 void surf_set_nthreads(int nthreads);
788 void surf_watched_hosts(void);
791 * Returns the initial path. On Windows the initial path is
792 * the current directory for the current process in the other
793 * case the function returns "./" that represents the current
794 * directory on Unix/Linux platforms.
796 const char *__surf_get_initial_path(void);
798 /********** Tracing **********/
799 /* from surf_instr.c */
800 void TRACE_surf_action(surf_action_t surf_action, const char *category);
801 void TRACE_surf_alloc(void);
802 void TRACE_surf_release(void);
804 /* instr_routing.c */
805 void instr_routing_define_callbacks (void);
806 void instr_new_variable_type (const char *new_typename, const char *color);
807 void instr_new_user_variable_type (const char *father_type, const char *new_typename, const char *color);
808 void instr_new_user_state_type (const char *father_type, const char *new_typename);
809 void instr_new_value_for_user_state_type (const char *typename, const char *value, const char *color);
810 int instr_platform_traced (void);
811 xbt_graph_t instr_routing_platform_graph (void);
812 void instr_routing_platform_graph_export_graphviz (xbt_graph_t g, const char *filename);
815 #endif /* _SURF_SURF_H */