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;
50 class NetworkCm02Link;
53 class StorageActionLmm;
62 typedef simgrid::surf::Model surf_Model;
63 typedef simgrid::surf::CpuModel surf_CpuModel;
64 typedef simgrid::surf::HostModel surf_HostModel;
65 typedef simgrid::surf::VMModel surf_VMModel;
66 typedef simgrid::surf::NetworkModel surf_NetworkModel;
67 typedef simgrid::surf::StorageModel surf_StorageModel;
68 typedef simgrid::surf::Resource surf_Resource;
69 typedef simgrid::surf::ResourceLmm surf_ResourceLmm;
70 typedef simgrid::surf::HostImpl surf_Host;
71 typedef simgrid::surf::HostCLM03 surf_HostCLM03;
72 typedef simgrid::surf::NetworkCm02Link surf_NetworkCm02Link;
73 typedef simgrid::surf::Action surf_Action;
74 typedef simgrid::surf::ActionLmm surf_ActionLmm;
75 typedef simgrid::surf::StorageActionLmm surf_StorageActionLmm;
76 typedef simgrid::kernel::routing::RoutingPlatf surf_RoutingPlatf;
80 typedef struct surf_Model surf_Model;
81 typedef struct surf_CpuModel surf_CpuModel;
82 typedef struct surf_HostModel surf_HostModel;
83 typedef struct surf_VMModel surf_VMModel;
84 typedef struct surf_NetworkModel surf_NetworkModel;
85 typedef struct surf_StorageModel surf_StorageModel;
86 typedef struct surf_Resource surf_Resource;
87 typedef struct surf_ResourceLmm surf_ResourceLmm;
88 typedef struct surf_HostCLM03 surf_HostCLM03;
89 typedef struct surf_Host surf_Host;
90 typedef struct surf_NetworkCm02Link surf_NetworkCm02Link;
91 typedef struct surf_Action surf_Action;
92 typedef struct surf_ActionLmm surf_ActionLmm;
93 typedef struct surf_StorageActionLmm surf_StorageActionLmm;
94 typedef struct surf_RoutingPlatf surf_RoutingPlatf;
98 /** @ingroup SURF_c_bindings
99 * \brief Model datatype
101 * Generic data structure for a model. The hosts,
102 * the CPUs and the network links are examples of models.
104 typedef surf_Model *surf_model_t;
105 typedef surf_CpuModel *surf_cpu_model_t;
106 typedef surf_HostModel *surf_host_model_t;
107 typedef surf_VMModel *surf_vm_model_t;
108 typedef surf_NetworkModel *surf_network_model_t;
109 typedef surf_StorageModel *surf_storage_model_t;
111 typedef xbt_dictelm_t surf_resource_t;
112 typedef surf_Resource *surf_cpp_resource_t;
113 typedef surf_Host *surf_host_t;
114 typedef surf_Cpu *surf_cpu_t;
116 /** @ingroup SURF_c_bindings
117 * \brief Action structure
119 * Never create s_surf_action_t by yourself ! The actions are created
120 * on the fly when you call execute or communicate on a model.
122 * \see e_surf_action_state_t
124 typedef surf_Action *surf_action_t;
125 typedef surf_RoutingPlatf *routing_platf_t;
127 typedef struct surf_file *surf_file_t;
129 /** \brief Resource model description
131 struct surf_model_description {
133 const char *description;
134 void_f_void_t model_init_preparse;
136 typedef struct surf_model_description s_surf_model_description_t;
137 typedef struct surf_model_description* surf_model_description_t;
139 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table, const char *name);
140 XBT_PUBLIC(void) model_help(const char *category, s_surf_model_description_t * table);
142 /***************************/
143 /* Generic model object */
144 /***************************/
146 XBT_PUBLIC_DATA(routing_platf_t) routing_platf;
148 static inline void *surf_storage_resource_priv(const void *storage){
149 return (void*)xbt_lib_get_level((xbt_dictelm_t)storage, SURF_STORAGE_LEVEL);
152 static inline void *surf_storage_resource_by_name(const char *name){
153 return xbt_lib_get_elm_or_null(storage_lib, name);
156 /** @{ @ingroup SURF_c_bindings */
159 * @brief Pop an action from the done actions set
161 * @param model The model from which the action is extracted
162 * @return An action in done state
164 XBT_PUBLIC(surf_action_t) surf_model_extract_done_action_set(surf_model_t model);
167 * @brief Pop an action from the failed actions set
169 * @param model The model from which the action is extracted
170 * @return An action in failed state
172 XBT_PUBLIC(surf_action_t) surf_model_extract_failed_action_set(surf_model_t model);
175 * @brief Get the size of the running action set of a model
177 * @param model The model
178 * @return The size of the running action set
180 XBT_PUBLIC(int) surf_model_running_action_set_size(surf_model_t model);
182 /** @brief Create a sleep action on the given host */
183 XBT_PUBLIC(surf_action_t) surf_host_sleep(sg_host_t host, double duration);
185 /** @brief Create a file opening action on the given host */
186 XBT_PUBLIC(surf_action_t) surf_host_open(sg_host_t host, const char* fullpath);
188 /** @brief Create a file closing action on the given host */
189 XBT_PUBLIC(surf_action_t) surf_host_close(sg_host_t host, surf_file_t fd);
191 /** @brief Create a file reading action on the given host */
192 XBT_PUBLIC(surf_action_t) surf_host_read(sg_host_t host, surf_file_t fd, sg_size_t size);
194 /** @brief Create a file writing action on the given host */
195 XBT_PUBLIC(surf_action_t) surf_host_write(sg_host_t host, surf_file_t fd, sg_size_t size);
198 * @brief Get the information of a file descriptor
199 * @details The returned xbt_dynar_t contains:
200 * - the size of the file,
202 * - the storage name,
203 * - the storage typeId,
204 * - the storage content type
206 * @param host The surf host
207 * @param fd The file descriptor
208 * @return An xbt_dynar_t with the file information
210 XBT_PUBLIC(xbt_dynar_t) surf_host_get_info(sg_host_t host, surf_file_t fd);
213 * @brief Get the available space of the storage at the mount point
215 * @param resource The surf host
216 * @param name The mount point
217 * @return The amount of available space in bytes
219 XBT_PUBLIC(sg_size_t) surf_host_get_free_size(sg_host_t resource, const char* name);
222 * @brief Get the used space of the storage at the mount point
224 * @param resource The surf host
225 * @param name The mount point
226 * @return The amount of used space in bytes
228 XBT_PUBLIC(sg_size_t) surf_host_get_used_size(sg_host_t resource, const char* name);
231 * @brief Unlink a file descriptor
233 * @param host The surf host
234 * @param fd The file descriptor
236 * @return 0 if failed to unlink, 1 otherwise
238 XBT_PUBLIC(int) surf_host_unlink(sg_host_t host, surf_file_t fd);
241 * @brief Get the size of a file on a host
243 * @param host The surf host
244 * @param fd The file descriptor
246 * @return The size in bytes of the file
248 XBT_PUBLIC(size_t) surf_host_get_size(sg_host_t host, surf_file_t fd);
251 * @brief Get the current position of the file descriptor
253 * @param host The surf host
254 * @param fd The file descriptor
255 * @return The current position of the file descriptor
257 XBT_PUBLIC(size_t) surf_host_file_tell(sg_host_t host, surf_file_t fd);
260 * @brief Move a file to another location on the *same mount point*.
261 * @details [long description]
263 * @param host The surf host
264 * @param fd The file descriptor
265 * @param fullpath The new full path
267 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
269 XBT_PUBLIC(int) surf_host_file_move(sg_host_t host, surf_file_t fd, const char* fullpath);
272 * @brief Set the position indictator assiociated with the file descriptor to a new position
273 * @details [long description]
275 * @param host The surf host
276 * @param fd The file descriptor
277 * @param offset The offset from the origin
278 * @param origin Position used as a reference for the offset
279 * - SEEK_SET: beginning of the file
280 * - SEEK_CUR: current position indicator
281 * - SEEK_END: end of the file
282 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
284 XBT_PUBLIC(int) surf_host_file_seek(sg_host_t host, surf_file_t fd, sg_offset_t offset, int origin);
287 * @brief Get the content of a storage
289 * @param resource The surf storage
290 * @return A xbt_dict_t with path as keys and size in bytes as values
292 XBT_PUBLIC(xbt_dict_t) surf_storage_get_content(surf_resource_t resource);
295 * @brief Get the size in bytes of a storage
297 * @param resource The surf storage
298 * @return The size in bytes of the storage
300 XBT_PUBLIC(sg_size_t) surf_storage_get_size(surf_resource_t resource);
303 * @brief Get the available size in bytes of a storage
305 * @param resource The surf storage
306 * @return The available size in bytes of the storage
308 XBT_PUBLIC(sg_size_t) surf_storage_get_free_size(surf_resource_t resource);
311 * @brief Get the size in bytes of a storage
313 * @param resource The surf storage
314 * @return The used size in bytes of the storage
316 XBT_PUBLIC(sg_size_t) surf_storage_get_used_size(surf_resource_t resource);
318 /** @brief return the properties set associated to that storage */
319 XBT_PUBLIC(xbt_dict_t) surf_storage_get_properties(surf_resource_t resource);
322 * @brief [brief description]
323 * @details [long description]
325 * @param action The surf cpu action
326 * @param bound [description]
328 XBT_PUBLIC(void) surf_cpu_action_set_bound(surf_action_t action, double bound);
331 * @brief [brief description]
332 * @details [long description]
334 * @param action The surf network action
336 XBT_PUBLIC(double) surf_network_action_get_latency_limited(surf_action_t action);
339 * @brief Get the file associated to a storage action
341 * @param action The surf storage action
342 * @return The file associated to a storage action
344 XBT_PUBLIC(surf_file_t) surf_storage_action_get_file(surf_action_t action);
347 * @brief Get the result dictionary of an ls action
349 * @param action The surf storage action
350 * @return The dictionry listing a path
352 XBT_PUBLIC(xbt_dict_t) surf_storage_action_get_ls_dict(surf_action_t action);
356 * @brief Get the host the storage is attached to
358 * @param resource The surf storage
359 * @return The host name
362 XBT_PUBLIC(const char * ) surf_storage_get_host(surf_resource_t resource);
366 /**************************************/
367 /* Implementations of model object */
368 /**************************************/
370 /** \ingroup SURF_models
371 * \brief The CPU model object for the physical machine layer
373 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_pm;
375 /** \ingroup SURF_models
376 * \brief The CPU model object for the virtual machine layer
378 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_vm;
381 /** \ingroup SURF_models
382 * \brief Initializes the CPU model with the model Cas01
384 * By default, this model uses the lazy optimization mechanism that relies on partial invalidation in LMM and a heap
385 * for lazy action update.
386 * You can change this behavior by setting the cpu/optim configuration variable to a different value.
388 * You shouldn't have to call it by yourself.
390 XBT_PUBLIC(void) surf_cpu_model_init_Cas01();
392 /** \ingroup SURF_models
393 * \brief Initializes the CPU model with trace integration [Deprecated]
395 * You shouldn't have to call it by yourself.
397 XBT_PUBLIC(void) surf_cpu_model_init_ti();
399 /** \ingroup SURF_models
400 * \brief The list of all available optimization modes (both for cpu and networks).
401 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
403 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
405 /** \ingroup SURF_plugins
406 * \brief The list of all available surf plugins
408 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_plugin_description[];
410 /** \ingroup SURF_models
411 * \brief The list of all available cpu model models
413 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
415 /** \ingroup SURF_models
416 * \brief The network model
418 * When creating a new API on top on SURF, you shouldn't use the network model unless you know what you are doing.
419 * Only the host model should be accessed because depending on the platform model, the network model can be NULL.
421 XBT_PUBLIC_DATA(surf_network_model_t) surf_network_model;
423 /** \ingroup SURF_models
424 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
426 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud based on the model 'LV08' and
427 * different correction factors depending on the communication size (< 1KiB, < 64KiB, >= 64KiB).
428 * See comments in the code for more information.
430 * \see surf_host_model_init_SMPI()
432 XBT_PUBLIC(void) surf_network_model_init_SMPI();
434 /** \ingroup SURF_models
435 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
437 * This model impelments a variant of the contention model on Infinband networks based on
438 * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
440 * \see surf_host_model_init_IB()
442 XBT_PUBLIC(void) surf_network_model_init_IB();
444 /** \ingroup SURF_models
445 * \brief Initializes the platform with the network model 'LegrandVelho'
447 * This model is proposed by Arnaud Legrand and Pedro Velho based on the results obtained with the GTNets simulator for
448 * onelink and dogbone sharing scenarios. See comments in the code for more information.
450 * \see surf_host_model_init_LegrandVelho()
452 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho();
454 /** \ingroup SURF_models
455 * \brief Initializes the platform with the network model 'Constant'
457 * In this model, the communication time between two network cards is constant, hence no need for a routing table.
458 * This is particularly useful when simulating huge distributed algorithms where scalability is really an issue. This
459 * function is called in conjunction with surf_host_model_init_compound.
461 * \see surf_host_model_init_compound()
463 XBT_PUBLIC(void) surf_network_model_init_Constant();
465 /** \ingroup SURF_models
466 * \brief Initializes the platform with the network model CM02
468 * You sould call this function by yourself only if you plan using surf_host_model_init_compound.
469 * See comments in the code for more information.
471 XBT_PUBLIC(void) surf_network_model_init_CM02();
473 /** \ingroup SURF_models
474 * \brief Initializes the platform with the network model NS3
476 * This function is called by surf_host_model_init_NS3 or by yourself only if you plan using
477 * surf_host_model_init_compound
479 * \see surf_host_model_init_NS3()
481 XBT_PUBLIC(void) surf_network_model_init_NS3();
483 /** \ingroup SURF_models
484 * \brief Initializes the platform with the network model Reno
486 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
489 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
490 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
492 * Call this function only if you plan using surf_host_model_init_compound.
494 XBT_PUBLIC(void) surf_network_model_init_Reno();
496 /** \ingroup SURF_models
497 * \brief Initializes the platform with the network model Reno2
499 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
502 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
503 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
505 * Call this function only if you plan using surf_host_model_init_compound.
507 XBT_PUBLIC(void) surf_network_model_init_Reno2();
509 /** \ingroup SURF_models
510 * \brief Initializes the platform with the network model Vegas
512 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent to the proportional fairness.
515 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
516 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
518 * Call this function only if you plan using surf_host_model_init_compound.
520 XBT_PUBLIC(void) surf_network_model_init_Vegas();
522 /** \ingroup SURF_models
523 * \brief The list of all available network model models
525 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_network_model_description[];
527 /** \ingroup SURF_models
528 * \brief The storage model
530 XBT_PUBLIC(void) surf_storage_model_init_default();
532 /** \ingroup SURF_models
533 * \brief The list of all available storage modes.
534 * This storage mode can be set using --cfg=storage/model:...
536 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
538 XBT_PUBLIC_DATA(surf_storage_model_t) surf_storage_model;
540 /** \ingroup SURF_models
541 * \brief The host model
543 * Note that when you create an API on top of SURF, the host model should be the only one you use
544 * because depending on the platform model, the network model and the CPU model may not exist.
546 XBT_PUBLIC_DATA(surf_host_model_t) surf_host_model;
548 /** \ingroup SURF_models
549 * \brief The vm model
551 * Note that when you create an API on top of SURF,the vm model should be the only one you use
552 * because depending on the platform model, the network model and the CPU model may not exist.
554 XBT_PUBLIC_DATA(surf_vm_model_t) surf_vm_model;
556 /** \ingroup SURF_models
557 * \brief Initializes the platform with a compound host model
559 * This function should be called after a cpu_model and a network_model have been set up.
561 XBT_PUBLIC(void) surf_host_model_init_compound();
563 /** \ingroup SURF_models
564 * \brief Initializes the platform with the current best network and cpu models at hand
566 * This platform model separates the host model and the network model.
567 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
568 * traffic support) and the CPU model with the model Cas01.
569 * Such model is subject to modification with warning in the ChangeLog so monitor it!
571 XBT_PUBLIC(void) surf_host_model_init_current_default();
573 /** \ingroup SURF_models
574 * \brief Initializes the platform with the model L07
576 * With this model, only parallel tasks can be used. Resource sharing is done by identifying bottlenecks and giving an
577 * equal share of the model to each action.
579 XBT_PUBLIC(void) surf_host_model_init_ptask_L07();
581 /** \ingroup SURF_models
582 * \brief The list of all available host model models
584 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_host_model_description[];
586 /** \ingroup SURF_models
587 * \brief Initializes the platform with the current best network and cpu models at hand
589 * This platform model seperates the host model and the network model.
590 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
591 * traffic support) and the CPU model with the model Cas01.
592 * Such model is subject to modification with warning in the ChangeLog so monitor it!
594 XBT_PUBLIC(void) surf_vm_model_init_HL13();
596 /** \ingroup SURF_models
597 * \brief The list of all available vm model models
599 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_vm_model_description[];
601 /** \ingroup SURF_simulation
602 * \brief List of hosts for which one want to be notified if they ever restart.
604 XBT_PUBLIC_DATA(xbt_dict_t) watched_hosts_lib;
606 /*** SURF Globals **************************/
608 /** \ingroup SURF_simulation
609 * \brief Initialize SURF
610 * \param argc argument number
611 * \param argv arguments
613 * This function has to be called to initialize the common structures. Then you will have to create the environment by
614 * calling e.g. surf_host_model_init_CM02()
616 * \see surf_host_model_init_CM02(), surf_host_model_init_compound(), surf_exit()
618 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
620 /** \ingroup SURF_simulation
621 * \brief Finish simulation initialization
623 * This function must be called before the first call to surf_solve()
625 XBT_PUBLIC(void) surf_presolve();
627 /** \ingroup SURF_simulation
628 * \brief Performs a part of the simulation
629 * \param max_date Maximum date to update the simulation to, or -1
630 * \return the elapsed time, or -1.0 if no event could be executed
632 * This function execute all possible events, update the action states and returns the time elapsed.
633 * When you call execute or communicate on a model, the corresponding actions are not executed immediately but only
634 * when you call surf_solve.
635 * Note that the returned elapsed time can be zero.
637 XBT_PUBLIC(double) surf_solve(double max_date);
639 /** \ingroup SURF_simulation
640 * \brief Return the current time
642 * Return the current time in millisecond.
644 XBT_PUBLIC(double) surf_get_clock();
646 /** \ingroup SURF_simulation
653 XBT_PUBLIC(void) surf_exit();
655 /* Prototypes of the functions that handle the properties */
656 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set;// the prop set for the currently parsed element (also used in SIMIX)
657 /* The same for model_prop set*/
658 XBT_PUBLIC_DATA(xbt_dict_t) current_model_property_set;
660 /* surf parse file related (public because called from a test suite) */
661 XBT_PUBLIC(void) parse_platform_file(const char *file);
663 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
664 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
666 XBT_PUBLIC(xbt_dict_t) get_as_router_properties(const char* name);
669 * Returns the initial path. On Windows the initial path is the current directory for the current process in the other
670 * case the function returns "./" that represents the current directory on Unix/Linux platforms.
672 const char *__surf_get_initial_path();
674 /********** Tracing **********/
675 /* from surf_instr.c */
676 void TRACE_surf_action(surf_action_t surf_action, const char *category);
677 void TRACE_surf_alloc();
678 void TRACE_surf_release();
680 /* instr_routing.c */
681 void instr_routing_define_callbacks ();
682 void instr_new_variable_type (const char *new_typename, const char *color);
683 void instr_new_user_variable_type (const char *father_type, const char *new_typename, const char *color);
684 void instr_new_user_state_type (const char *father_type, const char *new_typename);
685 void instr_new_value_for_user_state_type (const char *_typename, const char *value, const char *color);
686 int instr_platform_traced ();
687 xbt_graph_t instr_routing_platform_graph ();
688 void instr_routing_platform_graph_export_graphviz (xbt_graph_t g, const char *filename);
691 #endif /* _SURF_SURF_H */