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;
39 SURF_NETWORK_ELEMENT_NULL = 0, /* NULL */
40 SURF_NETWORK_ELEMENT_HOST, /* host type */
41 SURF_NETWORK_ELEMENT_ROUTER, /* router type */
42 SURF_NETWORK_ELEMENT_AS /* AS type */
43 } e_surf_network_element_type_t;
48 class WorkstationModel;
49 class WorkstationVMModel;
50 class NetworkCm02Model;
54 class WorkstationCLM03;
55 class NetworkCm02Link;
59 class StorageActionLmm;
64 typedef struct Model Model;
65 typedef struct CpuModel CpuModel;
66 typedef struct WorkstationModel WorkstationModel;
67 typedef struct WorkstationVMModel WorkstationVMModel;
68 typedef struct NetworkCm02Model NetworkCm02Model;
69 typedef struct StorageModel StorageModel;
70 typedef struct Resource Resource;
71 typedef struct ResourceLmm ResourceLmm;
72 typedef struct WorkstationCLM03 WorkstationCLM03;
73 typedef struct NetworkCm02Link NetworkCm02Link;
74 typedef struct Cpu Cpu;
75 typedef struct Action Action;
76 typedef struct ActionLmm ActionLmm;
77 typedef struct StorageActionLmm StorageActionLmm;
79 typedef struct RoutingEdge RoutingEdge;
80 typedef struct RoutingPlatf RoutingPlatf;
83 /** \ingroup SURF_models
84 * \brief Model datatype
86 * Generic data structure for a model. The workstations,
87 * the CPUs and the network links are examples of models.
89 typedef Model *surf_model_t;
90 typedef CpuModel *surf_cpu_model_t;
91 typedef WorkstationModel *surf_workstation_model_t;
92 typedef WorkstationVMModel *surf_vm_workstation_model_t;
94 typedef NetworkCm02Model *surf_network_model_t;
95 typedef StorageModel *surf_storage_model_t;
97 typedef xbt_dictelm_t surf_resource_t;
98 typedef Resource *surf_cpp_resource_t;
99 typedef WorkstationCLM03 *surf_workstation_CLM03_t;
100 typedef NetworkCm02Link *surf_network_link_t;
101 typedef Cpu *surf_cpu_t;
103 /** \ingroup SURF_actions
104 * \brief Action structure
106 * Never create s_surf_action_t by yourself ! The actions are created
107 * on the fly when you call execute or communicate on a model.
109 * \see e_surf_action_state_t
111 typedef Action *surf_action_t;
112 typedef ActionLmm *surf_action_lmm_t;
113 typedef StorageActionLmm *surf_storage_action_lmm_t;
116 typedef RoutingEdge *routing_edge_t;
117 typedef RoutingPlatf *routing_platf_t;
119 typedef struct surf_file *surf_file_t;
121 XBT_PUBLIC(e_surf_network_element_type_t)
122 routing_get_network_element_type(const char* name);
124 /** @Brief Specify that we use that action */
125 XBT_PUBLIC(void) surf_action_ref(surf_action_t action);
127 /** @brief Creates a new action.
129 * @param size The size is the one of the subtype you want to create
130 * @param cost initial value
131 * @param model to which model we should attach this action
132 * @param failed whether we should start this action in failed mode
134 XBT_PUBLIC(void *) surf_action_new(size_t size, double cost,
135 surf_model_t model, int failed);
137 /** \brief Resource model description
139 typedef struct surf_model_description {
141 const char *description;
142 void_f_void_t model_init_preparse;
143 } s_surf_model_description_t, *surf_model_description_t;
145 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table,
147 XBT_PUBLIC(void) model_help(const char *category,
148 s_surf_model_description_t * table);
150 /** \ingroup SURF_actions
151 * \brief Action states
155 * \see surf_action_t, surf_action_state_t
159 SURF_ACTION_READY = 0, /**< Ready */
160 SURF_ACTION_RUNNING, /**< Running */
161 SURF_ACTION_FAILED, /**< Task Failure */
162 SURF_ACTION_DONE, /**< Completed */
163 SURF_ACTION_TO_FREE, /**< Action to free in next cleanup */
164 SURF_ACTION_NOT_IN_THE_SYSTEM
165 /**< Not in the system anymore. Why did you ask ? */
166 } e_surf_action_state_t;
168 /* FIXME: Where should the VM state be defined? */
170 /* created, but not yet started */
171 SURF_VM_STATE_CREATED,
173 SURF_VM_STATE_RUNNING,
174 SURF_VM_STATE_MIGRATING,
176 /* Suspend/resume does not involve disk I/O, so we assume there is no transition states. */
177 SURF_VM_STATE_SUSPENDED,
179 /* Save/restore involves disk I/O, so there should be transition states. */
180 SURF_VM_STATE_SAVING,
182 SURF_VM_STATE_RESTORING,
186 typedef struct ws_params {
191 /* The size of other states than memory pages, which is out-of-scope of dirty
199 double dp_cap; /* bytes per 1 flop execution */
201 double xfer_cpu_overhead;
202 double dpt_cpu_overhead;
204 /* set migration speed */
206 } s_ws_params_t, *ws_params_t;
208 /***************************/
209 /* Generic model object */
210 /***************************/
211 //FIXME:REMOVE typedef struct s_routing_platf s_routing_platf_t, *routing_platf_t;
212 XBT_PUBLIC_DATA(routing_platf_t) routing_platf;
214 static inline void *surf_cpu_resource_priv(const void *host) {
215 return xbt_lib_get_level((xbt_dictelm_t)host, SURF_CPU_LEVEL);
217 static inline void *surf_workstation_resource_priv(const void *host){
218 return (void*)xbt_lib_get_level((xbt_dictelm_t)host, SURF_WKS_LEVEL);
220 static inline void *surf_storage_resource_priv(const void *storage){
221 return (void*)xbt_lib_get_level((xbt_dictelm_t)storage, SURF_STORAGE_LEVEL);
224 static inline void *surf_cpu_resource_by_name(const char *name) {
225 return xbt_lib_get_elm_or_null(host_lib, name);
227 static inline void *surf_workstation_resource_by_name(const char *name){
228 return xbt_lib_get_elm_or_null(host_lib, name);
230 static inline void *surf_storage_resource_by_name(const char *name){
231 return xbt_lib_get_elm_or_null(storage_lib, name);
237 char *surf_routing_edge_name(sg_routing_edge_t edge);
238 void *surf_as_cluster_get_backbone(AS_t as);
239 void surf_as_cluster_set_backbone(AS_t as, void* backbone);
240 const char *surf_model_name(surf_model_t model);
241 xbt_swag_t surf_model_done_action_set(surf_model_t model);
242 xbt_swag_t surf_model_failed_action_set(surf_model_t model);
243 xbt_swag_t surf_model_ready_action_set(surf_model_t model);
244 xbt_swag_t surf_model_running_action_set(surf_model_t model);
245 surf_action_t surf_workstation_model_execute_parallel_task(surf_workstation_model_t model,
247 void **workstation_list,
248 double *computation_amount,
249 double *communication_amount,
251 surf_action_t surf_workstation_model_communicate(surf_workstation_model_t model, surf_resource_t src, surf_resource_t dst, double size, double rate);
252 xbt_dynar_t surf_workstation_model_get_route(surf_workstation_model_t model, surf_resource_t src, surf_resource_t dst);
253 void surf_vm_workstation_model_create(const char *name, surf_resource_t ind_phys_host);
254 surf_action_t surf_network_model_communicate(surf_network_model_t model, sg_routing_edge_t src, sg_routing_edge_t dst, double size, double rate);
255 const char *surf_resource_name(surf_cpp_resource_t resource);
256 xbt_dict_t surf_resource_get_properties(surf_cpp_resource_t resource);
257 e_surf_resource_state_t surf_resource_get_state(surf_cpp_resource_t resource);
258 void surf_resource_set_state(surf_cpp_resource_t resource, e_surf_resource_state_t state);
259 double surf_workstation_get_speed(surf_resource_t resource, double load);
260 double surf_workstation_get_available_speed(surf_resource_t resource);
261 int surf_workstation_get_core(surf_resource_t resource);
262 surf_action_t surf_workstation_execute(surf_resource_t resource, double size);
263 surf_action_t surf_workstation_sleep(surf_resource_t resource, double duration);
264 surf_action_t surf_workstation_open(surf_resource_t workstation, const char* mount, const char* path);
265 surf_action_t surf_workstation_close(surf_resource_t workstation, surf_file_t fd);
266 surf_action_t surf_workstation_read(surf_resource_t resource, surf_file_t fd, sg_storage_size_t size);
267 surf_action_t surf_workstation_write(surf_resource_t resource, surf_file_t fd, sg_storage_size_t size);
268 xbt_dynar_t surf_workstation_get_info(surf_resource_t resource, surf_file_t fd);
269 sg_storage_size_t surf_workstation_get_free_size(surf_resource_t resource, const char* name);
270 sg_storage_size_t surf_workstation_get_used_size(surf_resource_t resource, const char* name);
271 xbt_dynar_t surf_workstation_get_vms(surf_resource_t resource);
272 void surf_workstation_get_params(surf_resource_t resource, ws_params_t params);
273 void surf_workstation_set_params(surf_resource_t resource, ws_params_t params);
274 void surf_vm_workstation_destroy(surf_resource_t resource);
275 void surf_vm_workstation_suspend(surf_resource_t resource);
276 void surf_vm_workstation_resume(surf_resource_t resource);
277 void surf_vm_workstation_save(surf_resource_t resource);
278 void surf_vm_workstation_restore(surf_resource_t resource);
279 void surf_vm_workstation_migrate(surf_resource_t resource, surf_resource_t ind_vm_ws_dest);
280 surf_resource_t surf_vm_workstation_get_pm(surf_resource_t resource);
281 void surf_vm_workstation_set_bound(surf_resource_t resource, double bound);
282 void surf_vm_workstation_set_affinity(surf_resource_t resource, surf_resource_t cpu, unsigned long mask);
283 surf_action_t surf_cpu_execute(surf_resource_t cpu, double size);
284 surf_action_t surf_cpu_sleep(surf_resource_t cpu, double duration);
285 double surf_workstation_get_current_power_peak(surf_resource_t host);
286 double surf_workstation_get_power_peak_at(surf_resource_t host, int pstate_index);
287 int surf_workstation_get_nb_pstates(surf_resource_t host);
288 void surf_workstation_set_power_peak_at(surf_resource_t host, int pstate_index);
289 double surf_workstation_get_consumed_energy(surf_resource_t host);
290 xbt_dict_t surf_workstation_get_storage_list(surf_resource_t workstation);
291 int surf_workstation_unlink(surf_resource_t workstation, surf_file_t fd);
292 surf_action_t surf_workstation_ls(surf_resource_t workstation, const char* mount, const char *path);
293 size_t surf_workstation_get_size(surf_resource_t workstation, surf_file_t fd);
294 int surf_network_link_is_shared(surf_cpp_resource_t link);
295 double surf_network_link_get_bandwidth(surf_cpp_resource_t link);
296 double surf_network_link_get_latency(surf_cpp_resource_t link);
297 xbt_dict_t surf_storage_get_content(surf_resource_t resource);
298 sg_storage_size_t surf_storage_get_size(surf_resource_t resource);
299 void *surf_action_get_data(surf_action_t action);
300 void surf_action_set_data(surf_action_t action, void *data);
301 void surf_action_unref(surf_action_t action);
302 double surf_action_get_start_time(surf_action_t action);
303 double surf_action_get_finish_time(surf_action_t action);
304 double surf_action_get_remains(surf_action_t action);
305 void surf_action_suspend(surf_action_t action);
306 void surf_action_resume(surf_action_t action);
307 void surf_action_cancel(surf_action_t action);
308 void surf_action_set_priority(surf_action_t action, double priority);
309 void surf_action_set_category(surf_action_t action, const char *category);
310 e_surf_action_state_t surf_action_get_state(surf_action_t action);
311 int surf_action_get_cost(surf_action_t action);
312 void surf_cpu_action_set_affinity(surf_action_t action, surf_resource_t cpu, unsigned long mask);
313 void surf_cpu_action_set_bound(surf_action_t action, double bound);
314 surf_file_t surf_storage_action_get_file(surf_action_t action);
315 xbt_dict_t surf_storage_action_get_ls_dict(surf_action_t action);
316 surf_model_t surf_resource_model(const void *host, int level);
321 /**************************************/
322 /* Implementations of model object */
323 /**************************************/
326 /** \ingroup SURF_models
327 * \brief The CPU model object for the physical machine layer
329 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_pm;
331 /** \ingroup SURF_models
332 * \brief The CPU model object for the virtual machine layer
334 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_vm;
337 /** \ingroup SURF_models
338 * \brief Initializes the CPU model with the model Cas01
340 * By default, this model uses the lazy optimization mechanism that
341 * relies on partial invalidation in LMM and a heap for lazy action update.
342 * You can change this behavior by setting the cpu/optim configuration
343 * variable to a different value.
345 * You shouldn't have to call it by yourself.
347 XBT_PUBLIC(void) surf_cpu_model_init_Cas01(void);
349 /** \ingroup SURF_models
350 * \brief Initializes the CPU model with trace integration [Deprecated]
352 * You shouldn't have to call it by yourself.
354 XBT_PUBLIC(void) surf_cpu_model_init_ti(void);
356 /** \ingroup SURF_models
357 * \brief The list of all available optimization modes (both for cpu and networks).
358 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
360 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
362 /** \ingroup SURF_models
363 * \brief The list of all available cpu model models
365 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
367 /**\brief create new host bypass the parser
372 /** \ingroup SURF_models
373 * \brief The network model
375 * When creating a new API on top on SURF, you shouldn't use the
376 * network model unless you know what you are doing. Only the workstation
377 * model should be accessed because depending on the platform model,
378 * the network model can be NULL.
380 XBT_PUBLIC_DATA(surf_network_model_t) surf_network_model;
382 /** \ingroup SURF_models
383 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
385 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud
386 * based on the model 'LV08' and different correction factors depending on the communication
387 * size (< 1KiB, < 64KiB, >= 64KiB).
388 * See comments in the code for more information.
390 * \see surf_workstation_model_init_SMPI()
392 XBT_PUBLIC(void) surf_network_model_init_SMPI(void);
394 /** \ingroup SURF_models
395 * \brief Initializes the platform with the network model 'LegrandVelho'
397 * This model is proposed by Arnaud Legrand and Pedro Velho based on
398 * the results obtained with the GTNets simulator for onelink and
399 * dogbone sharing scenarios. See comments in the code for more information.
401 * \see surf_workstation_model_init_LegrandVelho()
403 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho(void);
405 /** \ingroup SURF_models
406 * \brief Initializes the platform with the network model 'Constant'
408 * In this model, the communication time between two network cards is
409 * constant, hence no need for a routing table. This is particularly
410 * usefull when simulating huge distributed algorithms where
411 * scalability is really an issue. This function is called in
412 * conjunction with surf_workstation_model_init_compound.
414 * \see surf_workstation_model_init_compound()
416 XBT_PUBLIC(void) surf_network_model_init_Constant(void);
418 /** \ingroup SURF_models
419 * \brief Initializes the platform with the network model CM02
421 * You sould call this function by yourself only if you plan using
422 * surf_workstation_model_init_compound.
423 * See comments in the code for more information.
425 XBT_PUBLIC(void) surf_network_model_init_CM02(void);
428 /** \ingroup SURF_models
429 * \brief Initializes the platform with the network model GTNETS
430 * \param filename XML platform file name
432 * This function is called by surf_workstation_model_init_GTNETS
433 * or by yourself only if you plan using surf_workstation_model_init_compound
435 * \see surf_workstation_model_init_GTNETS()
437 XBT_PUBLIC(void) surf_network_model_init_GTNETS(void);
441 /** \ingroup SURF_models
442 * \brief Initializes the platform with the network model NS3
443 * \param filename XML platform file name
445 * This function is called by surf_workstation_model_init_NS3
446 * or by yourself only if you plan using surf_workstation_model_init_compound
448 * \see surf_workstation_model_init_NS3()
450 XBT_PUBLIC(void) surf_network_model_init_NS3(void);
453 /** \ingroup SURF_models
454 * \brief Initializes the platform with the network model Reno
455 * \param filename XML platform file name
457 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
460 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
461 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
463 * Call this function only if you plan using surf_workstation_model_init_compound.
466 XBT_PUBLIC(void) surf_network_model_init_Reno(void);
468 /** \ingroup SURF_models
469 * \brief Initializes the platform with the network model Reno2
470 * \param filename XML platform file name
472 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
475 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
476 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
478 * Call this function only if you plan using surf_workstation_model_init_compound.
481 XBT_PUBLIC(void) surf_network_model_init_Reno2(void);
483 /** \ingroup SURF_models
484 * \brief Initializes the platform with the network model Vegas
485 * \param filename XML platform file name
487 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent
488 * to the proportional fairness.
491 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
492 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
494 * Call this function only if you plan using surf_workstation_model_init_compound.
497 XBT_PUBLIC(void) surf_network_model_init_Vegas(void);
499 /** \ingroup SURF_models
500 * \brief The list of all available network model models
502 XBT_PUBLIC_DATA(s_surf_model_description_t)
503 surf_network_model_description[];
505 /** \ingroup SURF_models
506 * \brief The storage model
508 XBT_PUBLIC(void) surf_storage_model_init_default(void);
510 /** \ingroup SURF_models
511 * \brief The list of all available storage modes.
512 * This storage mode can be set using --cfg=storage/model:...
514 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
516 XBT_PUBLIC_DATA(surf_storage_model_t) surf_storage_model;
518 /** \ingroup SURF_models
519 * \brief The workstation model
521 * Note that when you create an API on top of SURF,
522 * the workstation model should be the only one you use
523 * because depending on the platform model, the network model and the CPU model
526 XBT_PUBLIC_DATA(surf_workstation_model_t) surf_workstation_model;
528 /** \ingroup SURF_models
529 * \brief The vm_workstation model
531 * Note that when you create an API on top of SURF,
532 * the vm_workstation model should be the only one you use
533 * because depending on the platform model, the network model and the CPU model
536 XBT_PUBLIC_DATA(surf_vm_workstation_model_t) surf_vm_workstation_model;
538 /** \ingroup SURF_models
539 * \brief Initializes the platform with a compound workstation model
541 * This function should be called after a cpu_model and a
542 * network_model have been set up.
545 XBT_PUBLIC(void) surf_workstation_model_init_compound(void);
547 /** \ingroup SURF_models
548 * \brief Initializes the platform with the current best network and cpu models at hand
550 * This platform model seperates the workstation model and the network model.
551 * The workstation model will be initialized with the model compound, the network
552 * model with the model LV08 (with cross traffic support) and the CPU model with
554 * Such model is subject to modification with warning in the ChangeLog so monitor it!
557 XBT_PUBLIC(void) surf_workstation_model_init_current_default(void);
559 /** \ingroup SURF_models
560 * \brief Initializes the platform with the model KCCFLN05
562 * With this model, only parallel tasks can be used. Resource sharing
563 * is done by identifying bottlenecks and giving an equal share of
564 * the model to each action.
567 XBT_PUBLIC(void) surf_workstation_model_init_ptask_L07(void);
569 /** \ingroup SURF_models
570 * \brief The list of all available workstation model models
572 XBT_PUBLIC_DATA(s_surf_model_description_t)
573 surf_workstation_model_description[];
575 /** \ingroup SURF_models
576 * \brief Initializes the platform with the current best network and cpu models at hand
578 * This platform model seperates the workstation model and the network model.
579 * The workstation model will be initialized with the model compound, the network
580 * model with the model LV08 (with cross traffic support) and the CPU model with
582 * Such model is subject to modification with warning in the ChangeLog so monitor it!
585 XBT_PUBLIC(void) surf_vm_workstation_model_init_current_default(void);
587 /** \ingroup SURF_models
588 * \brief The list of all available vm workstation model models
590 XBT_PUBLIC_DATA(s_surf_model_description_t)
591 surf_vm_workstation_model_description[];
593 /*******************************************/
595 /** \ingroup SURF_models
596 * \brief List of initialized models
598 XBT_PUBLIC_DATA(xbt_dynar_t) model_list;
599 XBT_PUBLIC_DATA(xbt_dynar_t) model_list_invoke;
601 /** \ingroup SURF_simulation
602 * \brief List of hosts that have juste restarted and whose autorestart process should be restarted.
604 XBT_PUBLIC_DATA(xbt_dynar_t) host_that_restart;
606 /** \ingroup SURF_simulation
607 * \brief List of hosts for which one want to be notified if they ever restart.
609 XBT_PUBLIC(xbt_dict_t) watched_hosts_lib;
611 /*******************************************/
612 /*** SURF Platform *************************/
613 /*******************************************/
617 XBT_PUBLIC_DATA(AS_t) surf_AS_get_routing_root(void);
618 XBT_PUBLIC_DATA(const char *) surf_AS_get_name(AS_t as);
619 XBT_PUBLIC_DATA(xbt_dict_t) surf_AS_get_routing_sons(AS_t as);
620 XBT_PUBLIC_DATA(const char *) surf_AS_get_model(AS_t as);
621 XBT_PUBLIC_DATA(xbt_dynar_t) surf_AS_get_hosts(AS_t as);
622 XBT_PUBLIC_DATA(void) surf_AS_get_graph(AS_t as, xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges);
623 XBT_PUBLIC_DATA(AS_t) surf_platf_get_root(routing_platf_t platf);
624 XBT_PUBLIC_DATA(e_surf_network_element_type_t) surf_routing_edge_get_rc_type(sg_routing_edge_t edge);
629 /*******************************************/
630 /*** SURF Globals **************************/
631 /*******************************************/
633 /** \ingroup SURF_simulation
634 * \brief Initialize SURF
635 * \param argc argument number
636 * \param argv arguments
638 * This function has to be called to initialize the common
639 * structures. Then you will have to create the environment by
641 * e.g. surf_workstation_model_init_CM02()
643 * \see surf_workstation_model_init_CM02(), surf_workstation_model_init_compound(), surf_exit()
645 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
647 /** \ingroup SURF_simulation
648 * \brief Finish simulation initialization
650 * This function must be called before the first call to surf_solve()
652 XBT_PUBLIC(void) surf_presolve(void);
654 /** \ingroup SURF_simulation
655 * \brief Performs a part of the simulation
656 * \param max_date Maximum date to update the simulation to, or -1
657 * \return the elapsed time, or -1.0 if no event could be executed
659 * This function execute all possible events, update the action states
660 * and returns the time elapsed.
661 * When you call execute or communicate on a model, the corresponding actions
662 * are not executed immediately but only when you call surf_solve.
663 * Note that the returned elapsed time can be zero.
665 XBT_PUBLIC(double) surf_solve(double max_date);
667 /** \ingroup SURF_simulation
668 * \brief Return the current time
670 * Return the current time in millisecond.
672 XBT_PUBLIC(double) surf_get_clock(void);
674 /** \ingroup SURF_simulation
681 XBT_PUBLIC(void) surf_exit(void);
683 /* Prototypes of the functions that handle the properties */
684 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set; /* the prop set for the currently parsed element (also used in SIMIX) */
686 /* surf parse file related (public because called from a test suite) */
687 XBT_PUBLIC(void) parse_platform_file(const char *file);
689 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
690 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
691 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_host_avail;
692 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_power;
693 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_link_avail;
694 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_bandwidth;
695 XBT_PUBLIC_DATA(xbt_dict_t) trace_connect_list_latency;
698 XBT_PUBLIC(double) get_cpu_power(const char *power);
700 XBT_PUBLIC(xbt_dict_t) get_as_router_properties(const char* name);
702 int surf_get_nthreads(void);
703 void surf_set_nthreads(int nthreads);
706 * Returns the initial path. On Windows the initial path is
707 * the current directory for the current process in the other
708 * case the function returns "./" that represents the current
709 * directory on Unix/Linux platforms.
711 const char *__surf_get_initial_path(void);
713 /********** Tracing **********/
714 /* from surf_instr.c */
715 void TRACE_surf_action(surf_action_t surf_action, const char *category);
716 void TRACE_surf_alloc(void);
717 void TRACE_surf_release(void);
719 /* instr_routing.c */
720 void instr_routing_define_callbacks (void);
721 void instr_new_variable_type (const char *new_typename, const char *color);
722 void instr_new_user_variable_type (const char *father_type, const char *new_typename, const char *color);
723 void instr_new_user_state_type (const char *father_type, const char *new_typename);
724 void instr_new_value_for_user_state_type (const char *_typename, const char *value, const char *color);
725 int instr_platform_traced (void);
726 xbt_graph_t instr_routing_platform_graph (void);
727 void instr_routing_platform_graph_export_graphviz (xbt_graph_t g, const char *filename);
730 #endif /* _SURF_SURF_H */