1 /* Copyright (c) 2004-2017. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
10 #include "xbt/dynar.h"
12 #include "xbt/graph.h"
14 #include "xbt/config.h"
15 #include "src/internal_config.h"
16 #include "surf/datatypes.h"
17 #include "simgrid/datatypes.h"
18 #include "simgrid/forward.h"
21 /* Actions and models are highly connected structures... */
23 /* user-visible parameters */
24 extern XBT_PRIVATE double sg_tcp_gamma;
25 extern XBT_PRIVATE double sg_sender_gap;
26 extern XBT_PRIVATE double sg_latency_factor;
27 extern XBT_PRIVATE double sg_bandwidth_factor;
28 extern XBT_PRIVATE double sg_weight_S_parameter;
29 extern XBT_PRIVATE int sg_network_crosstraffic;
42 class NetworkCm02Link;
47 typedef simgrid::surf::Model surf_Model;
48 typedef simgrid::surf::CpuModel surf_CpuModel;
49 typedef simgrid::surf::Cpu surf_Cpu;
50 typedef simgrid::surf::HostModel surf_HostModel;
51 typedef simgrid::surf::NetworkModel surf_NetworkModel;
52 typedef simgrid::surf::StorageImpl surf_Storage;
53 typedef simgrid::surf::StorageModel surf_StorageModel;
54 typedef simgrid::surf::Resource surf_Resource;
55 typedef simgrid::surf::HostImpl surf_Host;
56 typedef simgrid::surf::Action surf_Action;
57 typedef simgrid::surf::FileImpl surf_File;
61 typedef struct surf_Model surf_Model;
62 typedef struct surf_CpuModel surf_CpuModel;
63 typedef struct surf_Cpu surf_Cpu;
64 typedef struct surf_HostModel surf_HostModel;
65 typedef struct surf_NetworkModel surf_NetworkModel;
66 typedef struct surf_StorageImpl surf_Storage;
67 typedef struct surf_StorageModel surf_StorageModel;
68 typedef struct surf_Resource surf_Resource;
69 typedef struct surf_Host surf_Host;
70 typedef struct surf_Action surf_Action;
71 typedef struct surf_File surf_File;
75 /** @ingroup SURF_c_bindings
76 * \brief Model datatype
78 * Generic data structure for a model. The hosts,
79 * the CPUs and the network links are examples of models.
81 typedef surf_Model *surf_model_t;
82 typedef surf_CpuModel *surf_cpu_model_t;
83 typedef surf_HostModel *surf_host_model_t;
84 typedef surf_NetworkModel *surf_network_model_t;
85 typedef surf_StorageModel *surf_storage_model_t;
86 typedef surf_Storage* surf_storage_t;
87 typedef surf_File* surf_file_t;
89 /** @ingroup SURF_c_bindings
90 * \brief Action structure
92 * Never create s_surf_action_t by yourself ! The actions are created
93 * on the fly when you call execute or communicate on a model.
95 * \see e_surf_action_state_t
97 typedef surf_Action *surf_action_t;
100 /** \brief Resource model description
102 struct surf_model_description {
104 const char *description;
105 void_f_void_t model_init_preparse;
107 typedef struct surf_model_description s_surf_model_description_t;
108 typedef struct surf_model_description* surf_model_description_t;
110 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table, const char *name);
111 XBT_PUBLIC(void) model_help(const char *category, s_surf_model_description_t * table);
113 /***************************/
114 /* Generic model object */
115 /***************************/
117 /** @{ @ingroup SURF_c_bindings */
120 * @brief Pop an action from the done actions set
122 * @param model The model from which the action is extracted
123 * @return An action in done state
125 XBT_PUBLIC(surf_action_t) surf_model_extract_done_action_set(surf_model_t model);
128 * @brief Pop an action from the failed actions set
130 * @param model The model from which the action is extracted
131 * @return An action in failed state
133 XBT_PUBLIC(surf_action_t) surf_model_extract_failed_action_set(surf_model_t model);
136 * @brief Get the size of the running action set of a model
138 * @param model The model
139 * @return The size of the running action set
141 XBT_PUBLIC(int) surf_model_running_action_set_size(surf_model_t model);
143 /** @brief Create a file closing action on the given host */
144 XBT_PUBLIC(surf_action_t) surf_host_close(sg_host_t host, surf_file_t fd);
146 /** @brief Create a file reading action on the given host */
147 XBT_PUBLIC(surf_action_t) surf_host_read(sg_host_t host, surf_file_t fd, sg_size_t size);
149 /** @brief Create a file writing action on the given host */
150 XBT_PUBLIC(surf_action_t) surf_host_write(sg_host_t host, surf_file_t fd, sg_size_t size);
153 * @brief Unlink a file descriptor
155 * @param host The surf host
156 * @param fd The file descriptor
158 * @return 0 if failed to unlink, 1 otherwise
160 XBT_PUBLIC(int) surf_host_unlink(sg_host_t host, surf_file_t fd);
163 * @brief Move a file to another location on the *same mount point*.
164 * @details [long description]
166 * @param host The surf host
167 * @param fd The file descriptor
168 * @param fullpath The new full path
170 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
172 XBT_PUBLIC(int) surf_host_file_move(sg_host_t host, surf_file_t fd, const char* fullpath);
175 * @brief Set the position indictator assiociated with the file descriptor to a new position
176 * @details [long description]
178 * @param host The surf host
179 * @param fd The file descriptor
180 * @param offset The offset from the origin
181 * @param origin Position used as a reference for the offset
182 * - SEEK_SET: beginning of the file
183 * - SEEK_CUR: current position indicator
184 * - SEEK_END: end of the file
185 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
187 XBT_PUBLIC(int) surf_host_file_seek(sg_host_t host, surf_file_t fd, sg_offset_t offset, int origin);
190 * @brief [brief description]
191 * @details [long description]
193 * @param action The surf cpu action
194 * @param bound [description]
196 XBT_PUBLIC(void) surf_cpu_action_set_bound(surf_action_t action, double bound);
199 * @brief [brief description]
200 * @details [long description]
202 * @param action The surf network action
204 XBT_PUBLIC(double) surf_network_action_get_latency_limited(surf_action_t action);
207 * @brief Get the file associated to a storage action
209 * @param action The surf storage action
210 * @return The file associated to a storage action
212 XBT_PUBLIC(surf_file_t) surf_storage_action_get_file(surf_action_t action);
216 /**************************************/
217 /* Implementations of model object */
218 /**************************************/
220 /** \ingroup SURF_models
221 * \brief The CPU model object for the physical machine layer
223 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_pm;
225 /** \ingroup SURF_models
226 * \brief The CPU model object for the virtual machine layer
228 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_vm;
231 /** \ingroup SURF_models
232 * \brief Initializes the CPU model with the model Cas01
234 * By default, this model uses the lazy optimization mechanism that relies on partial invalidation in LMM and a heap
235 * for lazy action update.
236 * You can change this behavior by setting the cpu/optim configuration variable to a different value.
238 * You shouldn't have to call it by yourself.
240 XBT_PUBLIC(void) surf_cpu_model_init_Cas01();
242 /** \ingroup SURF_models
243 * \brief Initializes the CPU model with trace integration [Deprecated]
245 * You shouldn't have to call it by yourself.
247 XBT_PUBLIC(void) surf_cpu_model_init_ti();
249 /** \ingroup SURF_models
250 * \brief The list of all available optimization modes (both for cpu and networks).
251 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
253 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
255 /** \ingroup SURF_plugins
256 * \brief The list of all available surf plugins
258 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_plugin_description[];
260 /** \ingroup SURF_models
261 * \brief The list of all available cpu model models
263 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
265 /** \ingroup SURF_models
266 * \brief The network model
268 * When creating a new API on top on SURF, you shouldn't use the network model unless you know what you are doing.
269 * Only the host model should be accessed because depending on the platform model, the network model can be NULL.
271 XBT_PUBLIC_DATA(surf_network_model_t) surf_network_model;
273 /** \ingroup SURF_models
274 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
276 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud based on the model 'LV08' and
277 * different correction factors depending on the communication size (< 1KiB, < 64KiB, >= 64KiB).
278 * See comments in the code for more information.
280 * \see surf_host_model_init_SMPI()
282 XBT_PUBLIC(void) surf_network_model_init_SMPI();
284 /** \ingroup SURF_models
285 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
287 * This model impelments a variant of the contention model on Infinband networks based on
288 * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
290 * \see surf_host_model_init_IB()
292 XBT_PUBLIC(void) surf_network_model_init_IB();
294 /** \ingroup SURF_models
295 * \brief Initializes the platform with the network model 'LegrandVelho'
297 * This model is proposed by Arnaud Legrand and Pedro Velho based on the results obtained with the GTNets simulator for
298 * onelink and dogbone sharing scenarios. See comments in the code for more information.
300 * \see surf_host_model_init_LegrandVelho()
302 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho();
304 /** \ingroup SURF_models
305 * \brief Initializes the platform with the network model 'Constant'
307 * In this model, the communication time between two network cards is constant, hence no need for a routing table.
308 * This is particularly useful when simulating huge distributed algorithms where scalability is really an issue. This
309 * function is called in conjunction with surf_host_model_init_compound.
311 * \see surf_host_model_init_compound()
313 XBT_PUBLIC(void) surf_network_model_init_Constant();
315 /** \ingroup SURF_models
316 * \brief Initializes the platform with the network model CM02
318 * You sould call this function by yourself only if you plan using surf_host_model_init_compound.
319 * See comments in the code for more information.
321 XBT_PUBLIC(void) surf_network_model_init_CM02();
323 /** \ingroup SURF_models
324 * \brief Initializes the platform with the network model NS3
326 * This function is called by surf_host_model_init_NS3 or by yourself only if you plan using
327 * surf_host_model_init_compound
329 * \see surf_host_model_init_NS3()
331 XBT_PUBLIC(void) surf_network_model_init_NS3();
333 /** \ingroup SURF_models
334 * \brief Initializes the platform with the network model Reno
336 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
339 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
340 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
342 * Call this function only if you plan using surf_host_model_init_compound.
344 XBT_PUBLIC(void) surf_network_model_init_Reno();
346 /** \ingroup SURF_models
347 * \brief Initializes the platform with the network model Reno2
349 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
352 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
353 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
355 * Call this function only if you plan using surf_host_model_init_compound.
357 XBT_PUBLIC(void) surf_network_model_init_Reno2();
359 /** \ingroup SURF_models
360 * \brief Initializes the platform with the network model Vegas
362 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent to the proportional fairness.
365 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
366 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
368 * Call this function only if you plan using surf_host_model_init_compound.
370 XBT_PUBLIC(void) surf_network_model_init_Vegas();
372 /** \ingroup SURF_models
373 * \brief The list of all available network model models
375 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_network_model_description[];
377 /** \ingroup SURF_models
378 * \brief The storage model
380 XBT_PUBLIC(void) surf_storage_model_init_default();
382 /** \ingroup SURF_models
383 * \brief The list of all available storage modes.
384 * This storage mode can be set using --cfg=storage/model:...
386 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
388 XBT_PUBLIC_DATA(surf_storage_model_t) surf_storage_model;
390 /** \ingroup SURF_models
391 * \brief The host model
393 * Note that when you create an API on top of SURF, the host model should be the only one you use
394 * because depending on the platform model, the network model and the CPU model may not exist.
396 XBT_PUBLIC_DATA(surf_host_model_t) surf_host_model;
398 /** \ingroup SURF_models
399 * \brief Initializes the platform with a compound host model
401 * This function should be called after a cpu_model and a network_model have been set up.
403 XBT_PUBLIC(void) surf_host_model_init_compound();
405 /** \ingroup SURF_models
406 * \brief Initializes the platform with the current best network and cpu models at hand
408 * This platform model separates the host model and the network model.
409 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
410 * traffic support) and the CPU model with the model Cas01.
411 * Such model is subject to modification with warning in the ChangeLog so monitor it!
413 XBT_PUBLIC(void) surf_host_model_init_current_default();
415 /** \ingroup SURF_models
416 * \brief Initializes the platform with the model L07
418 * With this model, only parallel tasks can be used. Resource sharing is done by identifying bottlenecks and giving an
419 * equal share of the model to each action.
421 XBT_PUBLIC(void) surf_host_model_init_ptask_L07();
423 /** \ingroup SURF_models
424 * \brief The list of all available host model models
426 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_host_model_description[];
428 /** \ingroup SURF_models
429 * \brief Initializes the platform with the current best network and cpu models at hand
431 * This platform model seperates the host model and the network model.
432 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
433 * traffic support) and the CPU model with the model Cas01.
434 * Such model is subject to modification with warning in the ChangeLog so monitor it!
436 XBT_PUBLIC(void) surf_vm_model_init_HL13();
438 /** \ingroup SURF_simulation
439 * \brief List of hosts for which one want to be notified if they ever restart.
441 XBT_PUBLIC_DATA(xbt_dict_t) watched_hosts_lib;
443 /*** SURF Globals **************************/
445 /** \ingroup SURF_simulation
446 * \brief Initialize SURF
447 * \param argc argument number
448 * \param argv arguments
450 * This function has to be called to initialize the common structures. Then you will have to create the environment by
451 * calling e.g. surf_host_model_init_CM02()
453 * \see surf_host_model_init_CM02(), surf_host_model_init_compound(), surf_exit()
455 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
457 /** \ingroup SURF_simulation
458 * \brief Finish simulation initialization
460 * This function must be called before the first call to surf_solve()
462 XBT_PUBLIC(void) surf_presolve();
464 /** \ingroup SURF_simulation
465 * \brief Performs a part of the simulation
466 * \param max_date Maximum date to update the simulation to, or -1
467 * \return the elapsed time, or -1.0 if no event could be executed
469 * This function execute all possible events, update the action states and returns the time elapsed.
470 * When you call execute or communicate on a model, the corresponding actions are not executed immediately but only
471 * when you call surf_solve.
472 * Note that the returned elapsed time can be zero.
474 XBT_PUBLIC(double) surf_solve(double max_date);
476 /** \ingroup SURF_simulation
477 * \brief Return the current time
479 * Return the current time in millisecond.
481 XBT_PUBLIC(double) surf_get_clock();
483 /** \ingroup SURF_simulation
490 XBT_PUBLIC(void) surf_exit();
492 /* Prototypes of the functions that handle the properties */
493 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set;// the prop set for the currently parsed element (also used in SIMIX)
495 /* surf parse file related (public because called from a test suite) */
496 XBT_PUBLIC(void) parse_platform_file(const char *file);
498 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
499 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
502 * Returns the initial path. On Windows the initial path is the current directory for the current process in the other
503 * case the function returns "./" that represents the current directory on Unix/Linux platforms.
505 const char *__surf_get_initial_path();
507 /********** Tracing **********/
508 /* from surf_instr.c */
509 void TRACE_surf_action(surf_action_t surf_action, const char *category);
510 void TRACE_surf_alloc();
511 void TRACE_surf_release();
513 /* instr_routing.c */
514 void instr_routing_define_callbacks ();
515 void instr_new_variable_type (const char *new_typename, const char *color);
516 void instr_new_user_variable_type (const char *father_type, const char *new_typename, const char *color);
517 void instr_new_user_state_type (const char *father_type, const char *new_typename);
518 void instr_new_value_for_user_state_type (const char *_typename, const char *value, const char *color);
519 int instr_platform_traced ();
520 xbt_graph_t instr_routing_platform_graph ();
521 void instr_routing_platform_graph_export_graphviz (xbt_graph_t g, const char *filename);