1 /* Copyright (c) 2004-2013. 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"
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_network_crosstraffic;
33 extern double sg_gtnets_jitter;
34 extern int sg_gtnets_jitter_seed;
36 extern xbt_dynar_t surf_path;
40 SURF_NETWORK_ELEMENT_NULL = 0, /* NULL */
41 SURF_NETWORK_ELEMENT_HOST, /* host type */
42 SURF_NETWORK_ELEMENT_ROUTER, /* router type */
43 SURF_NETWORK_ELEMENT_AS /* AS type */
44 } e_surf_network_element_type_t;
46 XBT_PUBLIC(e_surf_network_element_type_t)
47 routing_get_network_element_type(const char* name);
49 /** @Brief Specify that we use that action */
50 XBT_PUBLIC(void) surf_action_ref(surf_action_t action);
52 /** @brief Creates a new action.
54 * @param size The size is the one of the subtype you want to create
55 * @param cost initial value
56 * @param model to which model we should attach this action
57 * @param failed whether we should start this action in failed mode
59 XBT_PUBLIC(void *) surf_action_new(size_t size, double cost,
60 surf_model_t model, int failed);
62 /** \brief Resource model description
64 typedef struct surf_model_description {
66 const char *description;
67 void_f_void_t model_init_preparse;
68 } s_surf_model_description_t, *surf_model_description_t;
70 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table,
72 XBT_PUBLIC(void) model_help(const char *category,
73 s_surf_model_description_t * table);
75 enum heap_action_type{
82 /** \ingroup SURF_actions
83 * \brief Action structure
85 * Never create s_surf_action_t by yourself ! The actions are created
86 * on the fly when you call execute or communicate on a model.
88 * \see e_surf_action_state_t
90 typedef struct surf_action {
91 s_xbt_swag_hookup_t state_hookup;
93 double cost; /**< cost */
94 double priority; /**< priority (1.0 by default) */
95 double bound; /**< the capping of the CPU use */
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 */
110 /* The previous name was model_type. For VM support, we have to distinguish a
111 * model type and its model object. Thus, we use model_obj here. The type of
112 * a model object is available by looking at the inside of the model object. */
113 surf_model_t model_obj; /**< the surf model object */
116 char *category; /**< tracing category for categorized resource utilization monitoring */
118 surf_file_t file; /**< surf_file_t for storage model */
122 typedef struct surf_action_lmm {
123 s_surf_action_t generic_action;
124 lmm_variable_t variable;
126 s_xbt_swag_hookup_t action_list_hookup;
130 enum heap_action_type hat;
131 } s_surf_action_lmm_t, *surf_action_lmm_t;
133 /** \ingroup SURF_actions
134 * \brief Action states
138 * \see surf_action_t, surf_action_state_t
141 SURF_ACTION_READY = 0, /**< Ready */
142 SURF_ACTION_RUNNING, /**< Running */
143 SURF_ACTION_FAILED, /**< Task Failure */
144 SURF_ACTION_DONE, /**< Completed */
145 SURF_ACTION_TO_FREE, /**< Action to free in next cleanup */
146 SURF_ACTION_NOT_IN_THE_SYSTEM
147 /**< Not in the system anymore. Why did you ask ? */
148 } e_surf_action_state_t;
150 /** \ingroup SURF_actions
151 * \brief Action state sets
153 * This structure contains some sets of actions.
154 * It provides a fast access to the actions in each state.
156 * \see surf_action_t, e_surf_action_state_t
158 typedef struct surf_action_state {
159 xbt_swag_t ready_action_set;
160 /**< Actions in state SURF_ACTION_READY */
161 xbt_swag_t running_action_set;
162 /**< Actions in state SURF_ACTION_RUNNING */
163 xbt_swag_t failed_action_set;
164 /**< Actions in state SURF_ACTION_FAILED */
165 xbt_swag_t done_action_set;
166 /**< Actions in state SURF_ACTION_DONE */
167 } s_surf_action_state_t, *surf_action_state_t;
169 /***************************/
170 /* Generic model object */
171 /***************************/
172 typedef struct s_routing_platf s_routing_platf_t, *routing_platf_t;
173 XBT_PUBLIC_DATA(routing_platf_t) routing_platf;
175 /*******************************************
176 * TUTORIAL: New model
177 * New model extension public
178 * Public functions specific to a New model.
180 typedef struct surf_new_model_extension_public {
181 surf_action_t(*fct) ();
182 void* (*create_resource) ();
183 } s_surf_model_extension_new_model_t;
184 /*******************************************/
186 /** \ingroup SURF_models
187 * \brief Private data available on all models
189 typedef struct surf_model_private *surf_model_private_t;
193 /** \ingroup SURF_models
194 * \brief CPU model extension public
196 * Public functions specific to the CPU model.
198 typedef struct surf_cpu_model_extension_public {
199 surf_action_t(*execute) (void *cpu, double size);
200 surf_action_t(*sleep) (void *cpu, double duration);
201 e_surf_resource_state_t(*get_state) (void *cpu);
202 void(*set_state) (void *cpu, e_surf_resource_state_t state);
204 int (*get_core) (void *cpu);
205 double (*get_speed) (void *cpu, double load);
206 double (*get_available_speed) (void *cpu);
207 double (*get_current_power_peak) (void *cpu);
208 double (*get_power_peak_at) (void *cpu, int pstate_index);
209 int (*get_nb_pstates) (void *cpu);
210 void (*set_power_peak_at) (void *cpu, int pstate_index);
211 double (*get_consumed_energy) (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);
243 surf_action_t(*close) (void *storage, surf_file_t fd);
244 surf_action_t(*read) (void *storage, surf_file_t fd, sg_storage_size_t size);
245 surf_action_t(*write) (void *storage, surf_file_t fd, sg_storage_size_t size);
246 surf_action_t(*stat) (void *storage, surf_file_t fd);
247 surf_action_t(*ls) (void *storage, const char *path);
248 xbt_dict_t(*get_properties) (const void *storage);
249 xbt_dict_t(*get_content) (void *storage);
250 sg_storage_size_t(*get_size) (void *storage);
251 } s_surf_model_extension_storage_t;
253 /** \ingroup SURF_models
254 * \brief Workstation model extension public
256 * Public functions specific to the workstation model.
258 typedef struct surf_workstation_model_extension_public {
259 /* This points to the surf cpu model object bound to the workstation model. */
260 surf_model_t cpu_model;
262 surf_action_t(*execute) (void *workstation, double size); /**< Execute a computation amount on a workstation
263 and create the corresponding action */
264 surf_action_t(*sleep) (void *workstation, double duration); /**< Make a workstation sleep during a given duration */
265 e_surf_resource_state_t(*get_state) (void *workstation); /**< Return the CPU state of a workstation */
266 void(*set_state) (void *workstation, e_surf_resource_state_t state);
267 int (*get_core) (void *workstation);
268 double (*get_speed) (void *workstation, double load); /**< Return the speed of a workstation */
269 double (*get_available_speed) (void *workstation); /**< Return tha available speed of a workstation */
271 double (*get_current_power_peak) (void *workstation); /**< Return the current CPU speed of a workstation */
272 double (*get_power_peak_at) (void *workstation, int pstate_index); /**< Return the speed of a workstation for a specific pstate,
273 (where higher pstate values represent lower processor speeds) */
274 int (*get_nb_pstates) (void *workstation); /**< Return the number of pstates defined for a workstation (default is 1) */
275 void (*set_power_peak_at) (void *workstation, int pstate_index); /**< Set the processor speed of a workstation to the speed associated with the pstate_index pstate */
276 double (*get_consumed_energy) (void *workstation); /**< Return the total energy consumed by a workstation */
278 surf_action_t(*communicate) (void *workstation_src, /**< Execute a communication amount between two workstations */
279 void *workstation_dst, double size,
281 // FIXME: kill next field, which duplicates the routing
282 xbt_dynar_t(*get_route) (void *workstation_src, void *workstation_dst); /**< Get the list of links between two ws */
284 surf_action_t(*execute_parallel_task) (int workstation_nb, /**< Execute a parallel task on several workstations */
285 void **workstation_list,
286 double *computation_amount,
287 double *communication_amount,
289 double (*get_link_bandwidth) (const void *link); /**< Return the current bandwidth of a network link */
290 double (*get_link_latency) (const void *link); /**< Return the current latency of a network link */
291 surf_action_t(*open) (void *workstation, const char* storage,
293 surf_action_t(*close) (void *workstation, surf_file_t fd);
294 surf_action_t(*read) (void *workstation, surf_file_t fd, sg_storage_size_t size);
295 surf_action_t(*write) (void *workstation, surf_file_t fd, sg_storage_size_t size);
296 surf_action_t(*stat) (void *workstation, surf_file_t fd);
297 int(*unlink) (void *workstation, surf_file_t fd);
298 surf_action_t(*ls) (void *workstation, const char* mount, const char *path);
299 sg_storage_size_t (*get_size) (void *workstation, surf_file_t fd);
300 xbt_dynar_t (*get_info) (void *workstation, surf_file_t fd);
302 int (*link_shared) (const void *link);
303 xbt_dict_t(*get_properties) (const void *resource);
304 void (*add_traces) (void);
306 void (*get_params) (void *ind_vm_ws, ws_params_t param);
307 void (*set_params) (void *ind_vm_ws, ws_params_t param);
308 xbt_dynar_t (*get_vms) (void *ind_vm_ws);
310 sg_storage_size_t (*get_free_size) (void *workstation,const char* name);
311 sg_storage_size_t (*get_used_size) (void *workstation,const char* name);
312 xbt_dict_t (*get_storage_list) (void *workstation);
313 } s_surf_model_extension_workstation_t;
315 typedef struct surf_vm_workstation_model_extension_public {
316 /* The vm workstation model object has all members of the physical machine
317 * workstation model object. If these members are correctly initialized also
318 * in the vm workstation model object, we can access the vm workstation model
319 * object as if it is the pm workstatoin model object.
321 * But, it's not so clean. Think it again later.
323 s_surf_model_extension_workstation_t basic;
325 // start does not appear here as it corresponds to turn the state from created to running (see smx_vm.c)
327 void (*create) (const char *name, void *ind_phys_workstation); // First operation of the VM model
328 void (*destroy) (void *ind_vm_ws); // will be vm_ws_destroy(), which destroies the vm-workstation-specific data
330 void (*suspend) (void *ind_vm_ws);
331 void (*resume) (void *ind_vm_ws);
333 void (*save) (void *ind_vm_ws);
334 void (*restore) (void *ind_vm_ws);
336 void (*migrate) (void *ind_vm_ws, void *ind_vm_ws_dest); // will be vm_ws_migrate()
338 int (*get_state) (void *ind_vm_ws);
339 void (*set_state) (void *ind_vm_ws, int state);
341 void * (*get_pm) (void *ind_vm_ws); // will be vm_ws_get_pm()
343 void (*set_vm_bound) (void *ind_vm_ws, double bound); // will be vm_ws_set_vm_bound()
344 void (*set_vm_affinity) (void *ind_vm_ws, void *ind_pm_ws, unsigned long mask); // will be vm_ws_set_vm_affinity()
346 } s_surf_model_extension_vm_workstation_t;
348 /** \ingroup SURF_models
351 * The type of the model object. For example, we will have two model objects
352 * of the surf cpu model. One is for physical machines, and the other is for
357 SURF_MODEL_TYPE_CPU = 0,
358 SURF_MODEL_TYPE_NETWORK,
359 SURF_MODEL_TYPE_STORAGE,
360 SURF_MODEL_TYPE_WORKSTATION,
361 SURF_MODEL_TYPE_VM_WORKSTATION,
362 SURF_MODEL_TYPE_NEW_MODEL
363 } e_surf_model_type_t;
365 /** \ingroup SURF_models
366 * \brief Model datatype
368 * Generic data structure for a model. The workstations,
369 * the CPUs and the network links are examples of models.
371 typedef struct surf_model {
372 const char *name; /**< Name of this model */
373 s_surf_action_state_t states; /**< Any living action on this model */
375 e_surf_model_type_t type; /**< See e_surf_model_type_t */
377 e_surf_action_state_t(*action_state_get) (surf_action_t action);
378 /**< Return the state of an action */
379 void (*action_state_set) (surf_action_t action,
380 e_surf_action_state_t state);
381 /**< Change an action state*/
383 double (*action_get_start_time) (surf_action_t action); /**< Return the start time of an action */
384 double (*action_get_finish_time) (surf_action_t action); /**< Return the finish time of an action */
385 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. */
386 void (*action_cancel) (surf_action_t action); /**< Cancel a running action */
387 void (*action_recycle) (surf_action_t action); /**< Recycle an action */
388 void (*action_data_set) (surf_action_t action, void *data); /**< Set the user data of an action */
389 void (*suspend) (surf_action_t action); /**< Suspend an action */
390 void (*resume) (surf_action_t action); /**< Resume a suspended action */
391 int (*is_suspended) (surf_action_t action); /**< Return whether an action is suspended */
392 void (*set_max_duration) (surf_action_t action, double duration); /**< Set the max duration of an action*/
393 void (*set_priority) (surf_action_t action, double priority); /**< Set the priority of an action */
394 void (*set_bound) (surf_action_t action, double bound); /**< Set the bound (the maximum CPU utilization) of an action */
396 /* Note (hypervisor): set_affinity() may be used only in CPU models. It might
397 * be better to move this member to the extension field.
399 void (*set_affinity) (surf_action_t action, void *workstation, unsigned long mask); /**< Set the CPU affinity of an action */
402 void (*set_category) (surf_action_t action, const char *category); /**< Set the category of an action */
404 double (*get_remains) (surf_action_t action); /**< Get the remains of an action */
405 #ifdef HAVE_LATENCY_BOUND_TRACKING
406 int (*get_latency_limited) (surf_action_t action); /**< Return 1 if action is limited by latency, 0 otherwise */
409 void (*gap_remove) (surf_action_lmm_t action);
411 surf_model_private_t model_private;
414 s_surf_model_extension_cpu_t cpu;
415 s_surf_model_extension_network_t network;
416 s_surf_model_extension_storage_t storage;
417 s_surf_model_extension_workstation_t workstation;
418 // TODO Implement the corresponding model
419 s_surf_model_extension_vm_workstation_t vm_workstation;
420 /*******************************************/
421 /* TUTORIAL: New model */
422 s_surf_model_extension_new_model_t new_model;
423 /*******************************************/
427 surf_model_t surf_model_init(void);
428 void surf_model_exit(surf_model_t model);
430 static inline void *surf_cpu_resource_priv(const void *host) {
431 return xbt_lib_get_level((void *)host, SURF_CPU_LEVEL);
433 static inline void *surf_workstation_resource_priv(const void *host){
434 return xbt_lib_get_level((void *)host, SURF_WKS_LEVEL);
436 static inline void *surf_storage_resource_priv(const void *storage){
437 return xbt_lib_get_level((void *)storage, SURF_STORAGE_LEVEL);
440 static inline void *surf_cpu_resource_by_name(const char *name) {
441 return xbt_lib_get_elm_or_null(host_lib, name);
443 static inline void *surf_workstation_resource_by_name(const char *name){
444 return xbt_lib_get_elm_or_null(host_lib, name);
446 static inline void *surf_storage_resource_by_name(const char *name){
447 return xbt_lib_get_elm_or_null(storage_lib, name);
450 typedef struct surf_resource {
453 xbt_dict_t properties;
454 void_f_pvoid_t free_f;
455 } s_surf_resource_t, *surf_resource_t;
457 static inline surf_model_t surf_resource_model(const void *host, int level) {
458 /* If level is SURF_WKS_LEVEL, ws is a workstation_CLM03 object. It has
459 * surf_resource at the generic_resource field. */
460 surf_resource_t ws = xbt_lib_get_level((void *) host, level);
465 * Resource which have a metric handled by a maxmin system
470 tmgr_trace_event_t event;
473 typedef struct surf_resource_lmm {
474 s_surf_resource_t generic_resource;
475 lmm_constraint_t constraint;
476 e_surf_resource_state_t state_current;
477 tmgr_trace_event_t state_event;
478 s_surf_metric_t power;
479 } s_surf_resource_lmm_t, *surf_resource_lmm_t;
481 /**************************************/
482 /* Implementations of model object */
483 /**************************************/
486 /** \ingroup SURF_models
487 * \brief The CPU model object for the physical machine layer
489 XBT_PUBLIC_DATA(surf_model_t) surf_cpu_model_pm;
491 /** \ingroup SURF_models
492 * \brief The CPU model object for the virtual machine layer
494 XBT_PUBLIC_DATA(surf_model_t) surf_cpu_model_vm;
496 /** \ingroup SURF_models
497 * \brief Initializes the CPU model with the model Cas01
499 * By default, this model uses the lazy optimization mechanism that
500 * relies on partial invalidation in LMM and a heap for lazy action update.
501 * You can change this behavior by setting the cpu/optim configuration
502 * variable to a different value.
504 * You shouldn't have to call it by yourself.
506 XBT_PUBLIC(void) surf_cpu_model_init_Cas01(void);
508 /** \ingroup SURF_models
509 * \brief Initializes the CPU model with trace integration [Deprecated]
511 * You shouldn't have to call it by yourself.
513 XBT_PUBLIC(surf_model_t) surf_cpu_model_init_ti(void);
515 /** \ingroup SURF_models
516 * \brief The list of all available optimization modes (both for cpu and networks).
517 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
519 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
521 /** \ingroup SURF_models
522 * \brief The list of all available cpu model models
524 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
526 /**\brief create new host bypass the parser
531 /** \ingroup SURF_models
532 * \brief The network model
534 * When creating a new API on top on SURF, you shouldn't use the
535 * network model unless you know what you are doing. Only the workstation
536 * model should be accessed because depending on the platform model,
537 * the network model can be NULL.
539 XBT_PUBLIC_DATA(surf_model_t) surf_network_model;
541 /** \ingroup SURF_models
542 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
544 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud
545 * based on the model 'LV08' and different correction factors depending on the communication
546 * size (< 1KiB, < 64KiB, >= 64KiB).
547 * See comments in the code for more information.
549 * \see surf_workstation_model_init_SMPI()
551 XBT_PUBLIC(void) surf_network_model_init_SMPI(void);
553 /** \ingroup SURF_models
554 * \brief Initializes the platform with the network model 'LegrandVelho'
556 * This model is proposed by Arnaud Legrand and Pedro Velho based on
557 * the results obtained with the GTNets simulator for onelink and
558 * dogbone sharing scenarios. See comments in the code for more information.
560 * \see surf_workstation_model_init_LegrandVelho()
562 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho(void);
564 /** \ingroup SURF_models
565 * \brief Initializes the platform with the network model 'Constant'
567 * In this model, the communication time between two network cards is
568 * constant, hence no need for a routing table. This is particularly
569 * usefull when simulating huge distributed algorithms where
570 * scalability is really an issue. This function is called in
571 * conjunction with surf_workstation_model_init_compound.
573 * \see surf_workstation_model_init_compound()
575 XBT_PUBLIC(void) surf_network_model_init_Constant(void);
577 /** \ingroup SURF_models
578 * \brief Initializes the platform with the network model CM02
580 * You sould call this function by yourself only if you plan using
581 * surf_workstation_model_init_compound.
582 * See comments in the code for more information.
584 XBT_PUBLIC(void) surf_network_model_init_CM02(void);
587 /** \ingroup SURF_models
588 * \brief Initializes the platform with the network model GTNETS
589 * \param filename XML platform file name
591 * This function is called by surf_workstation_model_init_GTNETS
592 * or by yourself only if you plan using surf_workstation_model_init_compound
594 * \see surf_workstation_model_init_GTNETS()
596 XBT_PUBLIC(void) surf_network_model_init_GTNETS(void);
600 /** \ingroup SURF_models
601 * \brief Initializes the platform with the network model NS3
602 * \param filename XML platform file name
604 * This function is called by surf_workstation_model_init_NS3
605 * or by yourself only if you plan using surf_workstation_model_init_compound
607 * \see surf_workstation_model_init_NS3()
609 XBT_PUBLIC(void) surf_network_model_init_NS3(void);
612 /** \ingroup SURF_models
613 * \brief Initializes the platform with the network model Reno
614 * \param filename XML platform file name
616 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
619 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
620 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
622 * Call this function only if you plan using surf_workstation_model_init_compound.
625 XBT_PUBLIC(void) surf_network_model_init_Reno(void);
627 /** \ingroup SURF_models
628 * \brief Initializes the platform with the network model Reno2
629 * \param filename XML platform file name
631 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
634 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
635 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
637 * Call this function only if you plan using surf_workstation_model_init_compound.
640 XBT_PUBLIC(void) surf_network_model_init_Reno2(void);
642 /** \ingroup SURF_models
643 * \brief Initializes the platform with the network model Vegas
644 * \param filename XML platform file name
646 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent
647 * to the proportional fairness.
650 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
651 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
653 * Call this function only if you plan using surf_workstation_model_init_compound.
656 XBT_PUBLIC(void) surf_network_model_init_Vegas(void);
658 /** \ingroup SURF_models
659 * \brief The list of all available network model models
661 XBT_PUBLIC_DATA(s_surf_model_description_t)
662 surf_network_model_description[];
664 /** \ingroup SURF_models
665 * \brief The storage model
667 XBT_PUBLIC(void) surf_storage_model_init_default(void);
669 /** \ingroup SURF_models
670 * \brief The list of all available storage modes.
671 * This storage mode can be set using --cfg=storage/model:...
673 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
675 XBT_PUBLIC_DATA(surf_model_t) surf_storage_model;
677 /** \ingroup SURF_models
678 * \brief The workstation model
680 * Note that when you create an API on top of SURF,
681 * the workstation model should be the only one you use
682 * because depending on the platform model, the network model and the CPU model
685 XBT_PUBLIC_DATA(surf_model_t) surf_workstation_model;
687 /** \ingroup SURF_models
688 * \brief The vm_workstation model
690 * Note that when you create an API on top of SURF,
691 * the vm_workstation model should be the only one you use
692 * because depending on the platform model, the network model and the CPU model
695 XBT_PUBLIC_DATA(surf_model_t) surf_vm_workstation_model;
697 /** \ingroup SURF_models
698 * \brief Initializes the platform with a compound workstation model
700 * This function should be called after a cpu_model and a
701 * network_model have been set up.
704 XBT_PUBLIC(void) surf_workstation_model_init_compound(void);
706 /** \ingroup SURF_models
707 * \brief Initializes the platform with the current best network and cpu models at hand
709 * This platform model seperates the workstation model and the network model.
710 * The workstation model will be initialized with the model compound, the network
711 * model with the model LV08 (with cross traffic support) and the CPU model with
713 * Such model is subject to modification with warning in the ChangeLog so monitor it!
716 XBT_PUBLIC(void) surf_workstation_model_init_current_default(void);
718 /** \ingroup SURF_models
719 * \brief Initializes the platform with the model KCCFLN05
721 * With this model, only parallel tasks can be used. Resource sharing
722 * is done by identifying bottlenecks and giving an equal share of
723 * the model to each action.
726 XBT_PUBLIC(void) surf_workstation_model_init_ptask_L07(void);
728 /** \ingroup SURF_models
729 * \brief The list of all available workstation model models
731 XBT_PUBLIC_DATA(s_surf_model_description_t)
732 surf_workstation_model_description[];
734 /*******************************************
735 * TUTORIAL: New model
737 XBT_PUBLIC(void) surf_new_model_init_default(void);
738 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_new_model_description[];
739 /*******************************************/
741 /** \ingroup SURF_models
742 * \brief List of initialized models
744 XBT_PUBLIC_DATA(xbt_dynar_t) model_list;
745 XBT_PUBLIC_DATA(xbt_dynar_t) model_list_invoke;
747 /** \ingroup SURF_simulation
748 * \brief List of hosts that have juste restarted and whose autorestart process should be restarted.
750 XBT_PUBLIC_DATA(xbt_dynar_t) host_that_restart;
752 /** \ingroup SURF_simulation
753 * \brief List of hosts for which one want to be notified if they ever restart.
755 XBT_PUBLIC(xbt_dict_t) watched_hosts_lib;
757 /*******************************************/
758 /*** SURF Platform *************************/
759 /*******************************************/
760 typedef struct s_as *AS_t;
762 XBT_PUBLIC_DATA(AS_t) surf_AS_get_routing_root(void);
763 XBT_PUBLIC_DATA(const char *) surf_AS_get_name(AS_t as);
764 XBT_PUBLIC_DATA(xbt_dict_t) surf_AS_get_routing_sons(AS_t as);
765 XBT_PUBLIC_DATA(const char *) surf_AS_get_model(AS_t as);
766 XBT_PUBLIC_DATA(xbt_dynar_t) surf_AS_get_hosts(AS_t as);
768 /*******************************************/
769 /*** SURF Globals **************************/
770 /*******************************************/
772 /** \ingroup SURF_simulation
773 * \brief Initialize SURF
774 * \param argc argument number
775 * \param argv arguments
777 * This function has to be called to initialize the common
778 * structures. Then you will have to create the environment by
780 * e.g. surf_workstation_model_init_CM02()
782 * \see surf_workstation_model_init_CM02(), surf_workstation_model_init_compound(), surf_exit()
784 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
786 /** \ingroup SURF_simulation
787 * \brief Finish simulation initialization
789 * This function must be called before the first call to surf_solve()
791 XBT_PUBLIC(void) surf_presolve(void);
793 /** \ingroup SURF_simulation
794 * \brief Performs a part of the simulation
795 * \param max_date Maximum date to update the simulation to, or -1
796 * \return the elapsed time, or -1.0 if no event could be executed
798 * This function execute all possible events, update the action states
799 * and returns the time elapsed.
800 * When you call execute or communicate on a model, the corresponding actions
801 * are not executed immediately but only when you call surf_solve.
802 * Note that the returned elapsed time can be zero.
804 XBT_PUBLIC(double) surf_solve(double max_date);
806 /** \ingroup SURF_simulation
807 * \brief Return the current time
809 * Return the current time in millisecond.
811 XBT_PUBLIC(double) surf_get_clock(void);
813 /** \ingroup SURF_simulation
820 XBT_PUBLIC(void) surf_exit(void);
822 /* Prototypes of the functions that handle the properties */
823 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set; /* the prop set for the currently parsed element (also used in SIMIX) */
825 /* surf parse file related (public because called from a test suite) */
826 XBT_PUBLIC(void) parse_platform_file(const char *file);
828 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
829 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
830 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_host_avail;
831 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_power;
832 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_avail;
833 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_bandwidth;
834 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_latency;
837 XBT_PUBLIC(double) get_cpu_power(const char *power);
839 XBT_PUBLIC(xbt_dict_t) get_as_router_properties(const char* name);
841 int surf_get_nthreads(void);
842 void surf_set_nthreads(int nthreads);
845 * Returns the initial path. On Windows the initial path is
846 * the current directory for the current process in the other
847 * case the function returns "./" that represents the current
848 * directory on Unix/Linux platforms.
850 const char *__surf_get_initial_path(void);
852 /********** Tracing **********/
853 /* from surf_instr.c */
854 void TRACE_surf_action(surf_action_t surf_action, const char *category);
855 void TRACE_surf_alloc(void);
856 void TRACE_surf_release(void);
858 /* instr_routing.c */
859 void instr_routing_define_callbacks (void);
860 void instr_new_variable_type (const char *new_typename, const char *color);
861 void instr_new_user_variable_type (const char *father_type, const char *new_typename, const char *color);
862 void instr_new_user_state_type (const char *father_type, const char *new_typename);
863 void instr_new_value_for_user_state_type (const char *typename, const char *value, const char *color);
864 int instr_platform_traced (void);
865 xbt_graph_t instr_routing_platform_graph (void);
866 void instr_routing_platform_graph_export_graphviz (xbt_graph_t g, const char *filename);
869 #endif /* _SURF_SURF_H */