1 /* Copyright (c) 2004-2015. 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/config.h"
16 #include "src/internal_config.h"
17 #include "surf/surf_routing.h"
18 #include "surf/datatypes.h"
20 #include "surf/surf_routing.h"
21 #include "simgrid/datatypes.h"
22 #include "simgrid/forward.h"
25 /* Actions and models are highly connected structures... */
27 /* user-visible parameters */
28 extern XBT_PRIVATE double sg_tcp_gamma;
29 extern XBT_PRIVATE double sg_sender_gap;
30 extern XBT_PRIVATE double sg_latency_factor;
31 extern XBT_PRIVATE double sg_bandwidth_factor;
32 extern XBT_PRIVATE double sg_weight_S_parameter;
33 extern XBT_PRIVATE int sg_network_crosstraffic;
34 extern XBT_PRIVATE xbt_dynar_t surf_path;
37 SURF_NETWORK_ELEMENT_HOST=1, /* host type */
38 SURF_NETWORK_ELEMENT_ROUTER, /* router type */
39 SURF_NETWORK_ELEMENT_AS /* AS type */
40 } e_surf_network_element_type_t;
57 class NetworkCm02Link;
60 class StorageActionLmm;
65 typedef simgrid::surf::Model surf_Model;
66 typedef simgrid::surf::CpuModel surf_CpuModel;
67 typedef simgrid::surf::HostModel surf_HostModel;
68 typedef simgrid::surf::VMModel surf_VMModel;
69 typedef simgrid::surf::NetworkModel surf_NetworkModel;
70 typedef simgrid::surf::StorageModel surf_StorageModel;
71 typedef simgrid::surf::Resource surf_Resource;
72 typedef simgrid::surf::ResourceLmm surf_ResourceLmm;
73 typedef simgrid::surf::HostImpl surf_Host;
74 typedef simgrid::surf::HostCLM03 surf_HostCLM03;
75 typedef simgrid::surf::NetworkCm02Link surf_NetworkCm02Link;
76 typedef simgrid::surf::Action surf_Action;
77 typedef simgrid::surf::ActionLmm surf_ActionLmm;
78 typedef simgrid::surf::StorageActionLmm surf_StorageActionLmm;
79 typedef simgrid::surf::RoutingPlatf surf_RoutingPlatf;
83 typedef struct surf_Model surf_Model;
84 typedef struct surf_CpuModel surf_CpuModel;
85 typedef struct surf_HostModel surf_HostModel;
86 typedef struct surf_VMModel surf_VMModel;
87 typedef struct surf_NetworkModel surf_NetworkModel;
88 typedef struct surf_StorageModel surf_StorageModel;
89 typedef struct surf_Resource surf_Resource;
90 typedef struct surf_ResourceLmm surf_ResourceLmm;
91 typedef struct surf_HostCLM03 surf_HostCLM03;
92 typedef struct surf_Host surf_Host;
93 typedef struct surf_NetworkCm02Link surf_NetworkCm02Link;
94 typedef struct surf_Action surf_Action;
95 typedef struct surf_ActionLmm surf_ActionLmm;
96 typedef struct surf_StorageActionLmm surf_StorageActionLmm;
97 typedef struct surf_RoutingPlatf surf_RoutingPlatf;
101 /** @ingroup SURF_c_bindings
102 * \brief Model datatype
104 * Generic data structure for a model. The hosts,
105 * the CPUs and the network links are examples of models.
107 typedef surf_Model *surf_model_t;
108 typedef surf_CpuModel *surf_cpu_model_t;
109 typedef surf_HostModel *surf_host_model_t;
110 typedef surf_VMModel *surf_vm_model_t;
111 typedef surf_NetworkModel *surf_network_model_t;
112 typedef surf_StorageModel *surf_storage_model_t;
114 typedef xbt_dictelm_t surf_resource_t;
115 typedef surf_Resource *surf_cpp_resource_t;
116 typedef surf_Host *surf_host_t;
117 typedef surf_Cpu *surf_cpu_t;
119 /** @ingroup SURF_c_bindings
120 * \brief Action structure
122 * Never create s_surf_action_t by yourself ! The actions are created
123 * on the fly when you call execute or communicate on a model.
125 * \see e_surf_action_state_t
127 typedef surf_Action *surf_action_t;
128 typedef surf_RoutingPlatf *routing_platf_t;
130 typedef struct surf_file *surf_file_t;
132 /** \brief Resource model description
134 typedef struct surf_model_description {
136 const char *description;
137 void_f_void_t model_init_preparse;
138 } s_surf_model_description_t, *surf_model_description_t;
140 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table, const char *name);
141 XBT_PUBLIC(void) model_help(const char *category, s_surf_model_description_t * table);
143 /** @ingroup SURF_interface
144 * @brief Action states
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 /**< Not in the system anymore. Why did you ask ? */
155 } e_surf_action_state_t;
157 /** @ingroup SURF_vm_interface
161 /* FIXME: Where should the VM state be defined? */
163 SURF_VM_STATE_CREATED, /**< created, but not yet started */
164 SURF_VM_STATE_RUNNING,
165 SURF_VM_STATE_SUSPENDED, /**< Suspend/resume does not involve disk I/O, so we assume there is no transition states. */
167 SURF_VM_STATE_SAVING, /**< Save/restore involves disk I/O, so there should be transition states. */
169 SURF_VM_STATE_RESTORING,
172 /***************************/
173 /* Generic model object */
174 /***************************/
176 XBT_PUBLIC_DATA(routing_platf_t) routing_platf;
178 static inline void *surf_storage_resource_priv(const void *storage){
179 return (void*)xbt_lib_get_level((xbt_dictelm_t)storage, SURF_STORAGE_LEVEL);
182 static inline void *surf_storage_resource_by_name(const char *name){
183 return xbt_lib_get_elm_or_null(storage_lib, name);
186 /** @{ @ingroup SURF_c_bindings */
189 * @brief Pop an action from the done actions set
191 * @param model The model from which the action is extracted
192 * @return An action in done state
194 XBT_PUBLIC(surf_action_t) surf_model_extract_done_action_set(surf_model_t model);
197 * @brief Pop an action from the failed actions set
199 * @param model The model from which the action is extracted
200 * @return An action in failed state
202 XBT_PUBLIC(surf_action_t) surf_model_extract_failed_action_set(surf_model_t model);
205 * @brief Get the size of the running action set of a model
207 * @param model The model
208 * @return The size of the running action set
210 XBT_PUBLIC(int) surf_model_running_action_set_size(surf_model_t model);
212 /** @brief Create a new VM on the specified host */
213 XBT_PUBLIC(void) surf_vm_model_create(const char *name, sg_host_t host_PM);
215 /** @brief Create a communication between two hosts
217 * @param model The model which handle the communication
218 * @param src The source host
219 * @param dst The destination host
220 * @param size The amount of data (in bytes) needed to transfer
221 * @param rate [description]
222 * @return The action corresponding to the communication
224 XBT_PUBLIC(surf_action_t) surf_network_model_communicate(surf_network_model_t model, sg_host_t src, sg_host_t dst, double size, double rate);
226 /** @brief Create a sleep action on the given host */
227 XBT_PUBLIC(surf_action_t) surf_host_sleep(sg_host_t host, double duration);
229 /** @brief Create a file opening action on the given host */
230 XBT_PUBLIC(surf_action_t) surf_host_open(sg_host_t host, const char* fullpath);
232 /** @brief Create a file closing action on the given host */
233 XBT_PUBLIC(surf_action_t) surf_host_close(sg_host_t host, surf_file_t fd);
235 /** @brief Create a file reading action on the given host */
236 XBT_PUBLIC(surf_action_t) surf_host_read(sg_host_t host, surf_file_t fd, sg_size_t size);
238 /** @brief Create a file writing action on the given host */
239 XBT_PUBLIC(surf_action_t) surf_host_write(sg_host_t host, surf_file_t fd, sg_size_t size);
242 * @brief Get the informations of a file descriptor
243 * @details The returned xbt_dynar_t contains:
244 * - the size of the file,
246 * - the storage name,
247 * - the storage typeId,
248 * - the storage content type
250 * @param host The surf host
251 * @param fd The file descriptor
252 * @return An xbt_dynar_t with the file informations
254 XBT_PUBLIC(xbt_dynar_t) surf_host_get_info(sg_host_t host, surf_file_t fd);
257 * @brief Get the available space of the storage at the mount point
259 * @param resource The surf host
260 * @param name The mount point
261 * @return The amount of available space in bytes
263 XBT_PUBLIC(sg_size_t) surf_host_get_free_size(sg_host_t resource, const char* name);
266 * @brief Get the used space of the storage at the mount point
268 * @param resource The surf host
269 * @param name The mount point
270 * @return The amount of used space in bytes
272 XBT_PUBLIC(sg_size_t) surf_host_get_used_size(sg_host_t resource, const char* name);
275 * @brief Destroy a VM
277 * @param resource The surf vm
279 XBT_PUBLIC(void) surf_vm_destroy(sg_host_t resource);
281 /** @brief Suspend a VM */
282 XBT_PUBLIC(void) surf_vm_suspend(sg_host_t resource);
284 /** @brief Resume a VM */
285 XBT_PUBLIC(void) surf_vm_resume(sg_host_t resource);
288 * @brief Save the VM (Not yet implemented)
290 * @param resource The surf vm
292 XBT_PUBLIC(void) surf_vm_save(sg_host_t resource);
295 * @brief Restore the VM (Not yet implemented)
297 * @param resource The surf vm
299 XBT_PUBLIC(void) surf_vm_restore(sg_host_t resource);
302 * @brief Migrate the VM to the destination host
304 * @param resource The surf vm
305 * @param ind_vm_ws_dest The destination host
307 XBT_PUBLIC(void) surf_vm_migrate(sg_host_t resource, sg_host_t ind_vm_ws_dest);
310 * @brief Get the physical machine hosting the VM
312 * @param resource The surf vm
313 * @return The physical machine hosting the VM
315 XBT_PUBLIC(sg_host_t) surf_vm_get_pm(sg_host_t resource);
318 * @brief [brief description]
319 * @details [long description]
321 * @param resource [description]
322 * @param bound [description]
324 XBT_PUBLIC(void) surf_vm_set_bound(sg_host_t resource, double bound);
327 * @brief [brief description]
328 * @details [long description]
330 * @param resource [description]
331 * @param cpu [description]
332 * @param mask [description]
334 XBT_PUBLIC(void) surf_vm_set_affinity(sg_host_t resource, sg_host_t cpu, unsigned long mask);
337 * @brief Unlink a file descriptor
339 * @param host The surf host
340 * @param fd The file descriptor
342 * @return 0 if failed to unlink, 1 otherwise
344 XBT_PUBLIC(int) surf_host_unlink(sg_host_t host, surf_file_t fd);
347 * @brief Get the size of a file on a host
349 * @param host The surf host
350 * @param fd The file descriptor
352 * @return The size in bytes of the file
354 XBT_PUBLIC(size_t) surf_host_get_size(sg_host_t host, surf_file_t fd);
357 * @brief Get the current position of the file descriptor
359 * @param host The surf host
360 * @param fd The file descriptor
361 * @return The current position of the file descriptor
363 XBT_PUBLIC(size_t) surf_host_file_tell(sg_host_t host, surf_file_t fd);
366 * @brief Move a file to another location on the *same mount point*.
367 * @details [long description]
369 * @param host The surf host
370 * @param fd The file descriptor
371 * @param fullpath The new full path
373 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
375 XBT_PUBLIC(int) surf_host_file_move(sg_host_t host, surf_file_t fd, const char* fullpath);
378 * @brief Set the position indictator assiociated with the file descriptor to a new position
379 * @details [long description]
381 * @param host The surf host
382 * @param fd The file descriptor
383 * @param offset The offset from the origin
384 * @param origin Position used as a reference for the offset
385 * - SEEK_SET: beginning of the file
386 * - SEEK_CUR: current position indicator
387 * - SEEK_END: end of the file
388 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
390 XBT_PUBLIC(int) surf_host_file_seek(sg_host_t host,
391 surf_file_t fd, sg_offset_t offset,
395 * @brief Get the content of a storage
397 * @param resource The surf storage
398 * @return A xbt_dict_t with path as keys and size in bytes as values
400 XBT_PUBLIC(xbt_dict_t) surf_storage_get_content(surf_resource_t resource);
403 * @brief Get the size in bytes of a storage
405 * @param resource The surf storage
406 * @return The size in bytes of the storage
408 XBT_PUBLIC(sg_size_t) surf_storage_get_size(surf_resource_t resource);
411 * @brief Get the available size in bytes of a storage
413 * @param resource The surf storage
414 * @return The available size in bytes of the storage
416 XBT_PUBLIC(sg_size_t) surf_storage_get_free_size(surf_resource_t resource);
419 * @brief Get the size in bytes of a storage
421 * @param resource The surf storage
422 * @return The used size in bytes of the storage
424 XBT_PUBLIC(sg_size_t) surf_storage_get_used_size(surf_resource_t resource);
426 /** @brief return the properties set associated to that storage */
427 XBT_PUBLIC(xbt_dict_t) surf_storage_get_properties(surf_resource_t resource);
430 * @brief [brief description]
431 * @details [long description]
433 * @param action The surf cpu action
434 * @param bound [description]
436 XBT_PUBLIC(void) surf_cpu_action_set_bound(surf_action_t action, double bound);
439 * @brief [brief description]
440 * @details [long description]
442 * @param action The surf network action
444 XBT_PUBLIC(double) surf_network_action_get_latency_limited(surf_action_t action);
447 * @brief Get the file associated to a storage action
449 * @param action The surf storage action
450 * @return The file associated to a storage action
452 XBT_PUBLIC(surf_file_t) surf_storage_action_get_file(surf_action_t action);
455 * @brief Get the result dictionary of an ls action
457 * @param action The surf storage action
458 * @return The dictionry listing a path
460 XBT_PUBLIC(xbt_dict_t) surf_storage_action_get_ls_dict(surf_action_t action);
464 * @brief Get the host the storage is attached to
466 * @param resource The surf storage
467 * @return The host name
470 XBT_PUBLIC(const char * ) surf_storage_get_host(surf_resource_t resource);
474 /**************************************/
475 /* Implementations of model object */
476 /**************************************/
478 XBT_PUBLIC_DATA(void_f_void_t) surf_cpu_model_init_preparse;
480 /** \ingroup SURF_models
481 * \brief The CPU model object for the physical machine layer
483 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_pm;
485 /** \ingroup SURF_models
486 * \brief The CPU model object for the virtual machine layer
488 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_vm;
491 /** \ingroup SURF_models
492 * \brief Initializes the CPU model with the model Cas01
494 * By default, this model uses the lazy optimization mechanism that relies on partial invalidation in LMM and a heap
495 * for lazy action update.
496 * You can change this behavior by setting the cpu/optim configuration variable to a different value.
498 * You shouldn't have to call it by yourself.
500 XBT_PUBLIC(void) surf_cpu_model_init_Cas01(void);
502 /** \ingroup SURF_models
503 * \brief Initializes the CPU model with trace integration [Deprecated]
505 * You shouldn't have to call it by yourself.
507 XBT_PUBLIC(void) surf_cpu_model_init_ti(void);
509 /** \ingroup SURF_models
510 * \brief The list of all available optimization modes (both for cpu and networks).
511 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
513 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
515 /** \ingroup SURF_plugins
516 * \brief The list of all available surf plugins
518 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_plugin_description[];
520 /** \ingroup SURF_models
521 * \brief The list of all available cpu model models
523 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
525 /** \ingroup SURF_models
526 * \brief The network model
528 * When creating a new API on top on SURF, you shouldn't use the network model unless you know what you are doing.
529 * Only the host model should be accessed because depending on the platform model, the network model can be NULL.
531 XBT_PUBLIC_DATA(surf_network_model_t) surf_network_model;
533 /** \ingroup SURF_models
534 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
536 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud based on the model 'LV08' and
537 * different correction factors depending on the communication size (< 1KiB, < 64KiB, >= 64KiB).
538 * See comments in the code for more information.
540 * \see surf_host_model_init_SMPI()
542 XBT_PUBLIC(void) surf_network_model_init_SMPI(void);
544 /** \ingroup SURF_models
545 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
547 * This model impelments a variant of the contention model on Infinband networks based on
548 * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
550 * \see surf_host_model_init_IB()
552 XBT_PUBLIC(void) surf_network_model_init_IB(void);
554 /** \ingroup SURF_models
555 * \brief Initializes the platform with the network model 'LegrandVelho'
557 * This model is proposed by Arnaud Legrand and Pedro Velho based on the results obtained with the GTNets simulator for
558 * onelink and dogbone sharing scenarios. See comments in the code for more information.
560 * \see surf_host_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 constant, hence no need for a routing table.
568 * This is particularly useful when simulating huge distributed algorithms where scalability is really an issue. This
569 * function is called in conjunction with surf_host_model_init_compound.
571 * \see surf_host_model_init_compound()
573 XBT_PUBLIC(void) surf_network_model_init_Constant(void);
575 /** \ingroup SURF_models
576 * \brief Initializes the platform with the network model CM02
578 * You sould call this function by yourself only if you plan using surf_host_model_init_compound.
579 * See comments in the code for more information.
581 XBT_PUBLIC(void) surf_network_model_init_CM02(void);
584 /** \ingroup SURF_models
585 * \brief Initializes the platform with the network model NS3
587 * This function is called by surf_host_model_init_NS3 or by yourself only if you plan using
588 * surf_host_model_init_compound
590 * \see surf_host_model_init_NS3()
592 XBT_PUBLIC(void) surf_network_model_init_NS3(void);
595 /** \ingroup SURF_models
596 * \brief Initializes the platform with the network model Reno
598 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
601 * [LOW03] 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_host_model_init_compound.
606 XBT_PUBLIC(void) surf_network_model_init_Reno(void);
608 /** \ingroup SURF_models
609 * \brief Initializes the platform with the network model Reno2
611 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
614 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
615 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
617 * Call this function only if you plan using surf_host_model_init_compound.
619 XBT_PUBLIC(void) surf_network_model_init_Reno2(void);
621 /** \ingroup SURF_models
622 * \brief Initializes the platform with the network model Vegas
624 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent to the proportional fairness.
627 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
628 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
630 * Call this function only if you plan using surf_host_model_init_compound.
632 XBT_PUBLIC(void) surf_network_model_init_Vegas(void);
634 /** \ingroup SURF_models
635 * \brief The list of all available network model models
637 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_network_model_description[];
639 /** \ingroup SURF_models
640 * \brief The storage model
642 XBT_PUBLIC(void) surf_storage_model_init_default(void);
644 /** \ingroup SURF_models
645 * \brief The list of all available storage modes.
646 * This storage mode can be set using --cfg=storage/model:...
648 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
650 XBT_PUBLIC_DATA(surf_storage_model_t) surf_storage_model;
652 /** \ingroup SURF_models
653 * \brief The host model
655 * Note that when you create an API on top of SURF, the host model should be the only one you use
656 * because depending on the platform model, the network model and the CPU model may not exist.
658 XBT_PUBLIC_DATA(surf_host_model_t) surf_host_model;
660 /** \ingroup SURF_models
661 * \brief The vm model
663 * Note that when you create an API on top of SURF,the vm model should be the only one you use
664 * because depending on the platform model, the network model and the CPU model may not exist.
666 XBT_PUBLIC_DATA(surf_vm_model_t) surf_vm_model;
668 /** \ingroup SURF_models
669 * \brief Initializes the platform with a compound host model
671 * This function should be called after a cpu_model and a network_model have been set up.
673 XBT_PUBLIC(void) surf_host_model_init_compound(void);
675 /** \ingroup SURF_models
676 * \brief Initializes the platform with the current best network and cpu models at hand
678 * This platform model separates the host model and the network model.
679 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
680 * traffic support) and the CPU model with the model Cas01.
681 * Such model is subject to modification with warning in the ChangeLog so monitor it!
683 XBT_PUBLIC(void) surf_host_model_init_current_default(void);
685 /** \ingroup SURF_models
686 * \brief Initializes the platform with the model L07
688 * With this model, only parallel tasks can be used. Resource sharing is done by identifying bottlenecks and giving an
689 * equal share of the model to each action.
691 XBT_PUBLIC(void) surf_host_model_init_ptask_L07(void);
693 /** \ingroup SURF_models
694 * \brief The list of all available host model models
696 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_host_model_description[];
698 /** \ingroup SURF_models
699 * \brief Initializes the platform with the current best network and cpu models at hand
701 * This platform model seperates the host model and the network model.
702 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
703 * traffic support) and the CPU model with the model Cas01.
704 * Such model is subject to modification with warning in the ChangeLog so monitor it!
706 XBT_PUBLIC(void) surf_vm_model_init_HL13(void);
708 /** \ingroup SURF_models
709 * \brief The list of all available vm model models
711 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_vm_model_description[];
713 /** \ingroup SURF_models
714 * \brief List of initialized models
716 XBT_PUBLIC_DATA(xbt_dynar_t) all_existing_models;
718 /** \ingroup SURF_simulation
719 * \brief List of hosts that have just restarted and whose autorestart process should be restarted.
721 XBT_PUBLIC_DATA(xbt_dynar_t) host_that_restart;
723 /** \ingroup SURF_simulation
724 * \brief List of hosts for which one want to be notified if they ever restart.
726 XBT_PUBLIC_DATA(xbt_dict_t) watched_hosts_lib;
728 /*** SURF Globals **************************/
730 /** \ingroup SURF_simulation
731 * \brief Initialize SURF
732 * \param argc argument number
733 * \param argv arguments
735 * This function has to be called to initialize the common structures. Then you will have to create the environment by
736 * calling e.g. surf_host_model_init_CM02()
738 * \see surf_host_model_init_CM02(), surf_host_model_init_compound(), surf_exit()
740 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
742 /** \ingroup SURF_simulation
743 * \brief Finish simulation initialization
745 * This function must be called before the first call to surf_solve()
747 XBT_PUBLIC(void) surf_presolve(void);
749 /** \ingroup SURF_simulation
750 * \brief Performs a part of the simulation
751 * \param max_date Maximum date to update the simulation to, or -1
752 * \return the elapsed time, or -1.0 if no event could be executed
754 * This function execute all possible events, update the action states and returns the time elapsed.
755 * When you call execute or communicate on a model, the corresponding actions are not executed immediately but only
756 * when you call surf_solve.
757 * Note that the returned elapsed time can be zero.
759 XBT_PUBLIC(double) surf_solve(double max_date);
761 /** \ingroup SURF_simulation
762 * \brief Return the current time
764 * Return the current time in millisecond.
766 XBT_PUBLIC(double) surf_get_clock(void);
768 /** \ingroup SURF_simulation
775 XBT_PUBLIC(void) surf_exit(void);
777 /* Prototypes of the functions that handle the properties */
778 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set;// the prop set for the currently parsed element (also used in SIMIX)
779 /* The same for model_prop set*/
780 XBT_PUBLIC_DATA(xbt_dict_t) current_model_property_set;
782 /* surf parse file related (public because called from a test suite) */
783 XBT_PUBLIC(void) parse_platform_file(const char *file);
785 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
786 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
788 XBT_PUBLIC(xbt_dict_t) get_as_router_properties(const char* name);
791 * Returns the initial path. On Windows the initial path is the current directory for the current process in the other
792 * case the function returns "./" that represents the current directory on Unix/Linux platforms.
794 const char *__surf_get_initial_path(void);
796 /********** Tracing **********/
797 /* from surf_instr.c */
798 void TRACE_surf_action(surf_action_t surf_action, const char *category);
799 void TRACE_surf_alloc(void);
800 void TRACE_surf_release(void);
802 /* instr_routing.c */
803 void instr_routing_define_callbacks (void);
804 void instr_new_variable_type (const char *new_typename, const char *color);
805 void instr_new_user_variable_type (const char *father_type, const char *new_typename, const char *color);
806 void instr_new_user_state_type (const char *father_type, const char *new_typename);
807 void instr_new_value_for_user_state_type (const char *_typename, const char *value, const char *color);
808 int instr_platform_traced (void);
809 xbt_graph_t instr_routing_platform_graph (void);
810 void instr_routing_platform_graph_export_graphviz (xbt_graph_t g, const char *filename);
813 #endif /* _SURF_SURF_H */