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/portable.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;
66 typedef simgrid::surf::Model surf_Model;
67 typedef simgrid::surf::CpuModel surf_CpuModel;
68 typedef simgrid::surf::HostModel surf_HostModel;
69 typedef simgrid::surf::VMModel surf_VMModel;
70 typedef simgrid::surf::NetworkModel surf_NetworkModel;
71 typedef simgrid::surf::StorageModel surf_StorageModel;
72 typedef simgrid::surf::Resource surf_Resource;
73 typedef simgrid::surf::ResourceLmm surf_ResourceLmm;
74 typedef simgrid::surf::HostImpl surf_Host;
75 typedef simgrid::surf::HostCLM03 surf_HostCLM03;
76 typedef simgrid::surf::NetworkCm02Link surf_NetworkCm02Link;
77 typedef simgrid::surf::Action surf_Action;
78 typedef simgrid::surf::ActionLmm surf_ActionLmm;
79 typedef simgrid::surf::StorageActionLmm surf_StorageActionLmm;
80 typedef simgrid::surf::RoutingPlatf surf_RoutingPlatf;
84 typedef struct surf_Model surf_Model;
85 typedef struct surf_CpuModel surf_CpuModel;
86 typedef struct surf_HostModel surf_HostModel;
87 typedef struct surf_VMModel surf_VMModel;
88 typedef struct surf_NetworkModel surf_NetworkModel;
89 typedef struct surf_StorageModel surf_StorageModel;
90 typedef struct surf_Resource surf_Resource;
91 typedef struct surf_ResourceLmm surf_ResourceLmm;
92 typedef struct surf_HostCLM03 surf_HostCLM03;
93 typedef struct surf_Host surf_Host;
94 typedef struct surf_NetworkCm02Link surf_NetworkCm02Link;
95 typedef struct surf_Action surf_Action;
96 typedef struct surf_ActionLmm surf_ActionLmm;
97 typedef struct surf_StorageActionLmm surf_StorageActionLmm;
98 typedef struct surf_RoutingPlatf surf_RoutingPlatf;
102 /** @ingroup SURF_c_bindings
103 * \brief Model datatype
105 * Generic data structure for a model. The hosts,
106 * the CPUs and the network links are examples of models.
108 typedef surf_Model *surf_model_t;
109 typedef surf_CpuModel *surf_cpu_model_t;
110 typedef surf_HostModel *surf_host_model_t;
111 typedef surf_VMModel *surf_vm_model_t;
112 typedef surf_NetworkModel *surf_network_model_t;
113 typedef surf_StorageModel *surf_storage_model_t;
115 typedef xbt_dictelm_t surf_resource_t;
116 typedef surf_Resource *surf_cpp_resource_t;
117 typedef surf_Host *surf_host_t;
118 typedef surf_Cpu *surf_cpu_t;
120 /** @ingroup SURF_c_bindings
121 * \brief Action structure
123 * Never create s_surf_action_t by yourself ! The actions are created
124 * on the fly when you call execute or communicate on a model.
126 * \see e_surf_action_state_t
128 typedef surf_Action *surf_action_t;
129 typedef surf_RoutingPlatf *routing_platf_t;
131 typedef struct surf_file *surf_file_t;
133 /** \brief Resource model description
135 typedef struct surf_model_description {
137 const char *description;
138 void_f_void_t model_init_preparse;
139 } s_surf_model_description_t, *surf_model_description_t;
141 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table, const char *name);
142 XBT_PUBLIC(void) model_help(const char *category, s_surf_model_description_t * table);
144 /** @ingroup SURF_interface
145 * @brief Action states
150 SURF_ACTION_READY = 0, /**< Ready */
151 SURF_ACTION_RUNNING, /**< Running */
152 SURF_ACTION_FAILED, /**< Task Failure */
153 SURF_ACTION_DONE, /**< Completed */
154 SURF_ACTION_TO_FREE, /**< Action to free in next cleanup */
155 SURF_ACTION_NOT_IN_THE_SYSTEM /**< Not in the system anymore. Why did you ask ? */
156 } e_surf_action_state_t;
158 /** @ingroup SURF_vm_interface
162 /* FIXME: Where should the VM state be defined? */
164 SURF_VM_STATE_CREATED, /**< created, but not yet started */
165 SURF_VM_STATE_RUNNING,
166 SURF_VM_STATE_SUSPENDED, /**< Suspend/resume does not involve disk I/O, so we assume there is no transition states. */
168 SURF_VM_STATE_SAVING, /**< Save/restore involves disk I/O, so there should be transition states. */
170 SURF_VM_STATE_RESTORING,
173 /***************************/
174 /* Generic model object */
175 /***************************/
177 XBT_PUBLIC_DATA(routing_platf_t) routing_platf;
179 static inline void *surf_storage_resource_priv(const void *storage){
180 return (void*)xbt_lib_get_level((xbt_dictelm_t)storage, SURF_STORAGE_LEVEL);
183 static inline void *surf_storage_resource_by_name(const char *name){
184 return xbt_lib_get_elm_or_null(storage_lib, name);
187 /** @{ @ingroup SURF_c_bindings */
190 * @brief Pop an action from the done actions set
192 * @param model The model from which the action is extracted
193 * @return An action in done state
195 XBT_PUBLIC(surf_action_t) surf_model_extract_done_action_set(surf_model_t model);
198 * @brief Pop an action from the failed actions set
200 * @param model The model from which the action is extracted
201 * @return An action in failed state
203 XBT_PUBLIC(surf_action_t) surf_model_extract_failed_action_set(surf_model_t model);
206 * @brief Get the size of the running action set of a model
208 * @param model The model
209 * @return The size of the running action set
211 XBT_PUBLIC(int) surf_model_running_action_set_size(surf_model_t model);
213 /** @brief Create a new VM on the specified host */
214 XBT_PUBLIC(void) surf_vm_model_create(const char *name, sg_host_t host_PM);
216 /** @brief Create a communication between two hosts
218 * @param model The model which handle the communication
219 * @param src The source host
220 * @param dst The destination host
221 * @param size The amount of data (in bytes) needed to transfer
222 * @param rate [description]
223 * @return The action corresponding to the communication
225 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);
228 * @brief Get the name of a surf resource (cpu, host, network, …)
230 * @param resource The surf resource
231 * @return The name of the surf resource
233 XBT_PUBLIC(const char * ) surf_resource_name(surf_cpp_resource_t resource);
235 /** @brief Get the available speed of cpu associated to a host */
236 XBT_PUBLIC(double) surf_host_get_available_speed(sg_host_t host);
238 /** @brief Create a sleep action on the given host */
239 XBT_PUBLIC(surf_action_t) surf_host_sleep(sg_host_t host, double duration);
241 /** @brief Create a file opening action on the given host */
242 XBT_PUBLIC(surf_action_t) surf_host_open(sg_host_t host, const char* fullpath);
244 /** @brief Create a file closing action on the given host */
245 XBT_PUBLIC(surf_action_t) surf_host_close(sg_host_t host, surf_file_t fd);
247 /** @brief Create a file reading action on the given host */
248 XBT_PUBLIC(surf_action_t) surf_host_read(sg_host_t host, surf_file_t fd, sg_size_t size);
250 /** @brief Create a file writing action on the given host */
251 XBT_PUBLIC(surf_action_t) surf_host_write(sg_host_t host, surf_file_t fd, sg_size_t size);
254 * @brief Get the informations of a file descriptor
255 * @details The returned xbt_dynar_t contains:
256 * - the size of the file,
258 * - the storage name,
259 * - the storage typeId,
260 * - the storage content type
262 * @param host The surf host
263 * @param fd The file descriptor
264 * @return An xbt_dynar_t with the file informations
266 XBT_PUBLIC(xbt_dynar_t) surf_host_get_info(sg_host_t host, surf_file_t fd);
269 * @brief Get the available space of the storage at the mount point
271 * @param resource The surf host
272 * @param name The mount point
273 * @return The amount of available space in bytes
275 XBT_PUBLIC(sg_size_t) surf_host_get_free_size(sg_host_t resource, const char* name);
278 * @brief Get the used space of the storage at the mount point
280 * @param resource The surf host
281 * @param name The mount point
282 * @return The amount of used space in bytes
284 XBT_PUBLIC(sg_size_t) surf_host_get_used_size(sg_host_t resource, const char* name);
287 * @brief Destroy a VM
289 * @param resource The surf vm
291 XBT_PUBLIC(void) surf_vm_destroy(sg_host_t resource);
293 /** @brief Suspend a VM */
294 XBT_PUBLIC(void) surf_vm_suspend(sg_host_t resource);
296 /** @brief Resume a VM */
297 XBT_PUBLIC(void) surf_vm_resume(sg_host_t resource);
300 * @brief Save the VM (Not yet implemented)
302 * @param resource The surf vm
304 XBT_PUBLIC(void) surf_vm_save(sg_host_t resource);
307 * @brief Restore the VM (Not yet implemented)
309 * @param resource The surf vm
311 XBT_PUBLIC(void) surf_vm_restore(sg_host_t resource);
314 * @brief Migrate the VM to the destination host
316 * @param resource The surf vm
317 * @param ind_vm_ws_dest The destination host
319 XBT_PUBLIC(void) surf_vm_migrate(sg_host_t resource, sg_host_t ind_vm_ws_dest);
322 * @brief Get the physical machine hosting the VM
324 * @param resource The surf vm
325 * @return The physical machine hosting the VM
327 XBT_PUBLIC(sg_host_t) surf_vm_get_pm(sg_host_t resource);
330 * @brief [brief description]
331 * @details [long description]
333 * @param resource [description]
334 * @param bound [description]
336 XBT_PUBLIC(void) surf_vm_set_bound(sg_host_t resource, double bound);
339 * @brief [brief description]
340 * @details [long description]
342 * @param resource [description]
343 * @param cpu [description]
344 * @param mask [description]
346 XBT_PUBLIC(void) surf_vm_set_affinity(sg_host_t resource, sg_host_t cpu, unsigned long mask);
349 * @brief Unlink a file descriptor
351 * @param host The surf host
352 * @param fd The file descriptor
354 * @return 0 if failed to unlink, 1 otherwise
356 XBT_PUBLIC(int) surf_host_unlink(sg_host_t host, surf_file_t fd);
359 * @brief Get the size of a file on a host
361 * @param host The surf host
362 * @param fd The file descriptor
364 * @return The size in bytes of the file
366 XBT_PUBLIC(size_t) surf_host_get_size(sg_host_t host, surf_file_t fd);
369 * @brief Get the current position of the file descriptor
371 * @param host The surf host
372 * @param fd The file descriptor
373 * @return The current position of the file descriptor
375 XBT_PUBLIC(size_t) surf_host_file_tell(sg_host_t host, surf_file_t fd);
378 * @brief Move a file to another location on the *same mount point*.
379 * @details [long description]
381 * @param host The surf host
382 * @param fd The file descriptor
383 * @param fullpath The new full path
385 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
387 XBT_PUBLIC(int) surf_host_file_move(sg_host_t host, surf_file_t fd, const char* fullpath);
390 * @brief Set the position indictator assiociated with the file descriptor to a new position
391 * @details [long description]
393 * @param host The surf host
394 * @param fd The file descriptor
395 * @param offset The offset from the origin
396 * @param origin Position used as a reference for the offset
397 * - SEEK_SET: beginning of the file
398 * - SEEK_CUR: current position indicator
399 * - SEEK_END: end of the file
400 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
402 XBT_PUBLIC(int) surf_host_file_seek(sg_host_t host,
403 surf_file_t fd, sg_offset_t offset,
407 * @brief Get the content of a storage
409 * @param resource The surf storage
410 * @return A xbt_dict_t with path as keys and size in bytes as values
412 XBT_PUBLIC(xbt_dict_t) surf_storage_get_content(surf_resource_t resource);
415 * @brief Get the size in bytes of a storage
417 * @param resource The surf storage
418 * @return The size in bytes of the storage
420 XBT_PUBLIC(sg_size_t) surf_storage_get_size(surf_resource_t resource);
423 * @brief Get the available size in bytes of a storage
425 * @param resource The surf storage
426 * @return The available size in bytes of the storage
428 XBT_PUBLIC(sg_size_t) surf_storage_get_free_size(surf_resource_t resource);
431 * @brief Get the size in bytes of a storage
433 * @param resource The surf storage
434 * @return The used size in bytes of the storage
436 XBT_PUBLIC(sg_size_t) surf_storage_get_used_size(surf_resource_t resource);
438 /** @brief return the properties set associated to that storage */
439 XBT_PUBLIC(xbt_dict_t) surf_storage_get_properties(surf_resource_t resource);
442 * @brief [brief description]
443 * @details [long description]
445 * @param action The surf cpu action
446 * @param bound [description]
448 XBT_PUBLIC(void) surf_cpu_action_set_bound(surf_action_t action, double bound);
451 * @brief [brief description]
452 * @details [long description]
454 * @param action The surf network action
456 XBT_PUBLIC(double) surf_network_action_get_latency_limited(surf_action_t action);
459 * @brief Get the file associated to a storage action
461 * @param action The surf storage action
462 * @return The file associated to a storage action
464 XBT_PUBLIC(surf_file_t) surf_storage_action_get_file(surf_action_t action);
467 * @brief Get the result dictionary of an ls action
469 * @param action The surf storage action
470 * @return The dictionry listing a path
472 XBT_PUBLIC(xbt_dict_t) surf_storage_action_get_ls_dict(surf_action_t action);
476 * @brief Get the host the storage is attached to
478 * @param resource The surf storage
479 * @return The host name
482 XBT_PUBLIC(const char * ) surf_storage_get_host(surf_resource_t resource);
486 /**************************************/
487 /* Implementations of model object */
488 /**************************************/
490 XBT_PUBLIC_DATA(int) autoload_surf_cpu_model;
491 XBT_PUBLIC_DATA(void_f_void_t) surf_cpu_model_init_preparse;
493 /** \ingroup SURF_models
494 * \brief The CPU model object for the physical machine layer
496 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_pm;
498 /** \ingroup SURF_models
499 * \brief The CPU model object for the virtual machine layer
501 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_vm;
504 /** \ingroup SURF_models
505 * \brief Initializes the CPU model with the model Cas01
507 * By default, this model uses the lazy optimization mechanism that
508 * relies on partial invalidation in LMM and a heap for lazy action update.
509 * You can change this behavior by setting the cpu/optim configuration
510 * variable to a different value.
512 * You shouldn't have to call it by yourself.
514 XBT_PUBLIC(void) surf_cpu_model_init_Cas01(void);
516 /** \ingroup SURF_models
517 * \brief Initializes the CPU model with trace integration [Deprecated]
519 * You shouldn't have to call it by yourself.
521 XBT_PUBLIC(void) surf_cpu_model_init_ti(void);
523 /** \ingroup SURF_models
524 * \brief The list of all available optimization modes (both for cpu and networks).
525 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
527 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
529 /** \ingroup SURF_plugins
530 * \brief The list of all available surf plugins
532 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_plugin_description[];
534 /** \ingroup SURF_models
535 * \brief The list of all available cpu model models
537 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
539 /**\brief create new host bypass the parser
544 /** \ingroup SURF_models
545 * \brief The network model
547 * When creating a new API on top on SURF, you shouldn't use the
548 * network model unless you know what you are doing. Only the host
549 * model should be accessed because depending on the platform model,
550 * the network model can be NULL.
552 XBT_PUBLIC_DATA(surf_network_model_t) surf_network_model;
554 /** \ingroup SURF_models
555 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
557 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud
558 * based on the model 'LV08' and different correction factors depending on the communication
559 * size (< 1KiB, < 64KiB, >= 64KiB).
560 * See comments in the code for more information.
562 * \see surf_host_model_init_SMPI()
564 XBT_PUBLIC(void) surf_network_model_init_SMPI(void);
566 /** \ingroup SURF_models
567 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
569 * This model impelments a variant of the contention model on Infinband networks based on
570 * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
572 * \see surf_host_model_init_IB()
574 XBT_PUBLIC(void) surf_network_model_init_IB(void);
576 /** \ingroup SURF_models
577 * \brief Initializes the platform with the network model 'LegrandVelho'
579 * This model is proposed by Arnaud Legrand and Pedro Velho based on
580 * the results obtained with the GTNets simulator for onelink and
581 * dogbone sharing scenarios. See comments in the code for more information.
583 * \see surf_host_model_init_LegrandVelho()
585 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho(void);
587 /** \ingroup SURF_models
588 * \brief Initializes the platform with the network model 'Constant'
590 * In this model, the communication time between two network cards is
591 * constant, hence no need for a routing table. This is particularly
592 * usefull when simulating huge distributed algorithms where
593 * scalability is really an issue. This function is called in
594 * conjunction with surf_host_model_init_compound.
596 * \see surf_host_model_init_compound()
598 XBT_PUBLIC(void) surf_network_model_init_Constant(void);
600 /** \ingroup SURF_models
601 * \brief Initializes the platform with the network model CM02
603 * You sould call this function by yourself only if you plan using
604 * surf_host_model_init_compound.
605 * See comments in the code for more information.
607 XBT_PUBLIC(void) surf_network_model_init_CM02(void);
610 /** \ingroup SURF_models
611 * \brief Initializes the platform with the network model NS3
613 * This function is called by surf_host_model_init_NS3
614 * or by yourself only if you plan using surf_host_model_init_compound
616 * \see surf_host_model_init_NS3()
618 XBT_PUBLIC(void) surf_network_model_init_NS3(void);
621 /** \ingroup SURF_models
622 * \brief Initializes the platform with the network model Reno
624 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
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.
633 XBT_PUBLIC(void) surf_network_model_init_Reno(void);
635 /** \ingroup SURF_models
636 * \brief Initializes the platform with the network model Reno2
638 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
641 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
642 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
644 * Call this function only if you plan using surf_host_model_init_compound.
647 XBT_PUBLIC(void) surf_network_model_init_Reno2(void);
649 /** \ingroup SURF_models
650 * \brief Initializes the platform with the network model Vegas
652 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent
653 * to the proportional fairness.
656 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
657 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
659 * Call this function only if you plan using surf_host_model_init_compound.
662 XBT_PUBLIC(void) surf_network_model_init_Vegas(void);
664 /** \ingroup SURF_models
665 * \brief The list of all available network model models
667 XBT_PUBLIC_DATA(s_surf_model_description_t)
668 surf_network_model_description[];
670 /** \ingroup SURF_models
671 * \brief The storage model
673 XBT_PUBLIC(void) surf_storage_model_init_default(void);
675 /** \ingroup SURF_models
676 * \brief The list of all available storage modes.
677 * This storage mode can be set using --cfg=storage/model:...
679 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
681 XBT_PUBLIC_DATA(surf_storage_model_t) surf_storage_model;
683 /** \ingroup SURF_models
684 * \brief The host model
686 * Note that when you create an API on top of SURF,
687 * the host model should be the only one you use
688 * because depending on the platform model, the network model and the CPU model
691 XBT_PUBLIC_DATA(surf_host_model_t) surf_host_model;
693 /** \ingroup SURF_models
694 * \brief The vm model
696 * Note that when you create an API on top of SURF,
697 * the vm model should be the only one you use
698 * because depending on the platform model, the network model and the CPU model
701 XBT_PUBLIC_DATA(surf_vm_model_t) surf_vm_model;
703 /** \ingroup SURF_models
704 * \brief Initializes the platform with a compound host model
706 * This function should be called after a cpu_model and a
707 * network_model have been set up.
710 XBT_PUBLIC(void) surf_host_model_init_compound(void);
712 /** \ingroup SURF_models
713 * \brief Initializes the platform with the current best network and cpu models at hand
715 * This platform model separates the host model and the network model.
716 * The host model will be initialized with the model compound, the network
717 * model with the model LV08 (with cross traffic support) and the CPU model with
719 * Such model is subject to modification with warning in the ChangeLog so monitor it!
722 XBT_PUBLIC(void) surf_host_model_init_current_default(void);
724 /** \ingroup SURF_models
725 * \brief Initializes the platform with the model L07
727 * With this model, only parallel tasks can be used. Resource sharing
728 * is done by identifying bottlenecks and giving an equal share of
729 * the model to each action.
732 XBT_PUBLIC(void) surf_host_model_init_ptask_L07(void);
734 /** \ingroup SURF_models
735 * \brief The list of all available host model models
737 XBT_PUBLIC_DATA(s_surf_model_description_t)
738 surf_host_model_description[];
740 /** \ingroup SURF_models
741 * \brief Initializes the platform with the current best network and cpu models at hand
743 * This platform model seperates the host model and the network model.
744 * The host model will be initialized with the model compound, the network
745 * model with the model LV08 (with cross traffic support) and the CPU model with
747 * Such model is subject to modification with warning in the ChangeLog so monitor it!
750 XBT_PUBLIC(void) surf_vm_model_init_HL13(void);
752 /** \ingroup SURF_models
753 * \brief The list of all available vm model models
755 XBT_PUBLIC_DATA(s_surf_model_description_t)
756 surf_vm_model_description[];
758 /*******************************************/
760 /** \ingroup SURF_models
761 * \brief List of initialized models
763 XBT_PUBLIC_DATA(xbt_dynar_t) all_existing_models;
765 /** \ingroup SURF_simulation
766 * \brief List of hosts that have just restarted and whose autorestart process should be restarted.
768 XBT_PUBLIC_DATA(xbt_dynar_t) host_that_restart;
770 /** \ingroup SURF_simulation
771 * \brief List of hosts for which one want to be notified if they ever restart.
773 XBT_PUBLIC_DATA(xbt_dict_t) watched_hosts_lib;
775 /*******************************************/
776 /*** SURF Globals **************************/
777 /*******************************************/
779 /** \ingroup SURF_simulation
780 * \brief Initialize SURF
781 * \param argc argument number
782 * \param argv arguments
784 * This function has to be called to initialize the common
785 * structures. Then you will have to create the environment by
787 * e.g. surf_host_model_init_CM02()
789 * \see surf_host_model_init_CM02(), surf_host_model_init_compound(), surf_exit()
791 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
793 /** \ingroup SURF_simulation
794 * \brief Finish simulation initialization
796 * This function must be called before the first call to surf_solve()
798 XBT_PUBLIC(void) surf_presolve(void);
800 /** \ingroup SURF_simulation
801 * \brief Performs a part of the simulation
802 * \param max_date Maximum date to update the simulation to, or -1
803 * \return the elapsed time, or -1.0 if no event could be executed
805 * This function execute all possible events, update the action states
806 * and returns the time elapsed.
807 * When you call execute or communicate on a model, the corresponding actions
808 * are not executed immediately but only when you call surf_solve.
809 * Note that the returned elapsed time can be zero.
811 XBT_PUBLIC(double) surf_solve(double max_date);
813 /** \ingroup SURF_simulation
814 * \brief Return the current time
816 * Return the current time in millisecond.
818 XBT_PUBLIC(double) surf_get_clock(void);
820 /** \ingroup SURF_simulation
827 XBT_PUBLIC(void) surf_exit(void);
829 /* Prototypes of the functions that handle the properties */
830 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set; /* the prop set for the currently parsed element (also used in SIMIX) */
832 /* The same for model_prop set*/
833 XBT_PUBLIC_DATA(xbt_dict_t) current_model_property_set;
835 /* surf parse file related (public because called from a test suite) */
836 XBT_PUBLIC(void) parse_platform_file(const char *file);
838 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
839 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
841 XBT_PUBLIC(xbt_dict_t) get_as_router_properties(const char* name);
844 * Returns the initial path. On Windows the initial path is
845 * the current directory for the current process in the other
846 * case the function returns "./" that represents the current
847 * directory on Unix/Linux platforms.
849 const char *__surf_get_initial_path(void);
851 /********** Tracing **********/
852 /* from surf_instr.c */
853 void TRACE_surf_action(surf_action_t surf_action, const char *category);
854 void TRACE_surf_alloc(void);
855 void TRACE_surf_release(void);
857 /* instr_routing.c */
858 void instr_routing_define_callbacks (void);
859 void instr_new_variable_type (const char *new_typename, const char *color);
860 void instr_new_user_variable_type (const char *father_type, const char *new_typename, const char *color);
861 void instr_new_user_state_type (const char *father_type, const char *new_typename);
862 void instr_new_value_for_user_state_type (const char *_typename, const char *value, const char *color);
863 int instr_platform_traced (void);
864 xbt_graph_t instr_routing_platform_graph (void);
865 void instr_routing_platform_graph_export_graphviz (xbt_graph_t g, const char *filename);
869 #endif /* _SURF_SURF_H */