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::Action surf_Action;
56 typedef simgrid::surf::FileImpl surf_File;
60 typedef struct surf_Model surf_Model;
61 typedef struct surf_CpuModel surf_CpuModel;
62 typedef struct surf_Cpu surf_Cpu;
63 typedef struct surf_HostModel surf_HostModel;
64 typedef struct surf_NetworkModel surf_NetworkModel;
65 typedef struct surf_StorageImpl surf_Storage;
66 typedef struct surf_StorageModel surf_StorageModel;
67 typedef struct surf_Resource surf_Resource;
68 typedef struct surf_Host surf_Host;
69 typedef struct surf_Action surf_Action;
70 typedef struct surf_File surf_File;
74 /** @ingroup SURF_c_bindings
75 * \brief Model datatype
77 * Generic data structure for a model. The hosts,
78 * the CPUs and the network links are examples of models.
80 typedef surf_Model *surf_model_t;
81 typedef surf_CpuModel *surf_cpu_model_t;
82 typedef surf_HostModel *surf_host_model_t;
83 typedef surf_NetworkModel *surf_network_model_t;
84 typedef surf_StorageModel *surf_storage_model_t;
85 typedef surf_File* surf_file_t;
87 /** @ingroup SURF_c_bindings
88 * \brief Action structure
90 * Never create s_surf_action_t by yourself ! The actions are created
91 * on the fly when you call execute or communicate on a model.
93 * \see e_surf_action_state_t
95 typedef surf_Action *surf_action_t;
98 /** \brief Resource model description
100 struct surf_model_description {
102 const char *description;
103 void_f_void_t model_init_preparse;
105 typedef struct surf_model_description s_surf_model_description_t;
106 typedef struct surf_model_description* surf_model_description_t;
108 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table, const char *name);
109 XBT_PUBLIC(void) model_help(const char *category, s_surf_model_description_t * table);
111 /***************************/
112 /* Generic model object */
113 /***************************/
115 /** @{ @ingroup SURF_c_bindings */
118 * @brief Pop an action from the done actions set
120 * @param model The model from which the action is extracted
121 * @return An action in done state
123 XBT_PUBLIC(surf_action_t) surf_model_extract_done_action_set(surf_model_t model);
126 * @brief Pop an action from the failed actions set
128 * @param model The model from which the action is extracted
129 * @return An action in failed state
131 XBT_PUBLIC(surf_action_t) surf_model_extract_failed_action_set(surf_model_t model);
134 * @brief Get the size of the running action set of a model
136 * @param model The model
137 * @return The size of the running action set
139 XBT_PUBLIC(int) surf_model_running_action_set_size(surf_model_t model);
141 /** @brief Create a file closing action on the given host */
142 XBT_PUBLIC(surf_action_t) surf_host_close(sg_host_t host, surf_file_t fd);
144 /** @brief Create a file reading action on the given host */
145 XBT_PUBLIC(surf_action_t) surf_host_read(sg_host_t host, surf_file_t fd, sg_size_t size);
147 /** @brief Create a file writing action on the given host */
148 XBT_PUBLIC(surf_action_t) surf_host_write(sg_host_t host, surf_file_t fd, sg_size_t size);
151 * @brief Move a file to another location on the *same mount point*.
152 * @details [long description]
154 * @param host The surf host
155 * @param fd The file descriptor
156 * @param fullpath The new full path
158 * @return MSG_OK if successful, otherwise MSG_TASK_CANCELED
160 XBT_PUBLIC(int) surf_host_file_move(sg_host_t host, surf_file_t fd, const char* fullpath);
163 * @brief [brief description]
164 * @details [long description]
166 * @param action The surf cpu action
167 * @param bound [description]
169 XBT_PUBLIC(void) surf_cpu_action_set_bound(surf_action_t action, double bound);
172 * @brief [brief description]
173 * @details [long description]
175 * @param action The surf network action
177 XBT_PUBLIC(double) surf_network_action_get_latency_limited(surf_action_t action);
180 * @brief Get the file associated to a storage action
182 * @param action The surf storage action
183 * @return The file associated to a storage action
185 XBT_PUBLIC(surf_file_t) surf_storage_action_get_file(surf_action_t action);
189 /**************************************/
190 /* Implementations of model object */
191 /**************************************/
193 /** \ingroup SURF_models
194 * \brief The CPU model object for the physical machine layer
196 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_pm;
198 /** \ingroup SURF_models
199 * \brief The CPU model object for the virtual machine layer
201 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_vm;
204 /** \ingroup SURF_models
205 * \brief Initializes the CPU model with the model Cas01
207 * By default, this model uses the lazy optimization mechanism that relies on partial invalidation in LMM and a heap
208 * for lazy action update.
209 * You can change this behavior by setting the cpu/optim configuration variable to a different value.
211 * You shouldn't have to call it by yourself.
213 XBT_PUBLIC(void) surf_cpu_model_init_Cas01();
215 /** \ingroup SURF_models
216 * \brief Initializes the CPU model with trace integration [Deprecated]
218 * You shouldn't have to call it by yourself.
220 XBT_PUBLIC(void) surf_cpu_model_init_ti();
222 /** \ingroup SURF_models
223 * \brief The list of all available optimization modes (both for cpu and networks).
224 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
226 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
228 /** \ingroup SURF_plugins
229 * \brief The list of all available surf plugins
231 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_plugin_description[];
233 /** \ingroup SURF_models
234 * \brief The list of all available cpu model models
236 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
238 /** \ingroup SURF_models
239 * \brief The network model
241 * When creating a new API on top on SURF, you shouldn't use the network model unless you know what you are doing.
242 * Only the host model should be accessed because depending on the platform model, the network model can be NULL.
244 XBT_PUBLIC_DATA(surf_network_model_t) surf_network_model;
246 /** \ingroup SURF_models
247 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
249 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud based on the model 'LV08' and
250 * different correction factors depending on the communication size (< 1KiB, < 64KiB, >= 64KiB).
251 * See comments in the code for more information.
253 * \see surf_host_model_init_SMPI()
255 XBT_PUBLIC(void) surf_network_model_init_SMPI();
257 /** \ingroup SURF_models
258 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
260 * This model impelments a variant of the contention model on Infinband networks based on
261 * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
263 * \see surf_host_model_init_IB()
265 XBT_PUBLIC(void) surf_network_model_init_IB();
267 /** \ingroup SURF_models
268 * \brief Initializes the platform with the network model 'LegrandVelho'
270 * This model is proposed by Arnaud Legrand and Pedro Velho based on the results obtained with the GTNets simulator for
271 * onelink and dogbone sharing scenarios. See comments in the code for more information.
273 * \see surf_host_model_init_LegrandVelho()
275 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho();
277 /** \ingroup SURF_models
278 * \brief Initializes the platform with the network model 'Constant'
280 * In this model, the communication time between two network cards is constant, hence no need for a routing table.
281 * This is particularly useful when simulating huge distributed algorithms where scalability is really an issue. This
282 * function is called in conjunction with surf_host_model_init_compound.
284 * \see surf_host_model_init_compound()
286 XBT_PUBLIC(void) surf_network_model_init_Constant();
288 /** \ingroup SURF_models
289 * \brief Initializes the platform with the network model CM02
291 * You sould call this function by yourself only if you plan using surf_host_model_init_compound.
292 * See comments in the code for more information.
294 XBT_PUBLIC(void) surf_network_model_init_CM02();
296 /** \ingroup SURF_models
297 * \brief Initializes the platform with the network model NS3
299 * This function is called by surf_host_model_init_NS3 or by yourself only if you plan using
300 * surf_host_model_init_compound
302 * \see surf_host_model_init_NS3()
304 XBT_PUBLIC(void) surf_network_model_init_NS3();
306 /** \ingroup SURF_models
307 * \brief Initializes the platform with the network model Reno
309 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
312 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
313 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
315 * Call this function only if you plan using surf_host_model_init_compound.
317 XBT_PUBLIC(void) surf_network_model_init_Reno();
319 /** \ingroup SURF_models
320 * \brief Initializes the platform with the network model Reno2
322 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
325 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
326 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
328 * Call this function only if you plan using surf_host_model_init_compound.
330 XBT_PUBLIC(void) surf_network_model_init_Reno2();
332 /** \ingroup SURF_models
333 * \brief Initializes the platform with the network model Vegas
335 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent to the proportional fairness.
338 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
339 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
341 * Call this function only if you plan using surf_host_model_init_compound.
343 XBT_PUBLIC(void) surf_network_model_init_Vegas();
345 /** \ingroup SURF_models
346 * \brief The list of all available network model models
348 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_network_model_description[];
350 /** \ingroup SURF_models
351 * \brief The storage model
353 XBT_PUBLIC(void) surf_storage_model_init_default();
355 /** \ingroup SURF_models
356 * \brief The list of all available storage modes.
357 * This storage mode can be set using --cfg=storage/model:...
359 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
361 XBT_PUBLIC_DATA(surf_storage_model_t) surf_storage_model;
363 /** \ingroup SURF_models
364 * \brief The host model
366 * Note that when you create an API on top of SURF, the host model should be the only one you use
367 * because depending on the platform model, the network model and the CPU model may not exist.
369 XBT_PUBLIC_DATA(surf_host_model_t) surf_host_model;
371 /** \ingroup SURF_models
372 * \brief Initializes the platform with a compound host model
374 * This function should be called after a cpu_model and a network_model have been set up.
376 XBT_PUBLIC(void) surf_host_model_init_compound();
378 /** \ingroup SURF_models
379 * \brief Initializes the platform with the current best network and cpu models at hand
381 * This platform model separates the host model and the network model.
382 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
383 * traffic support) and the CPU model with the model Cas01.
384 * Such model is subject to modification with warning in the ChangeLog so monitor it!
386 XBT_PUBLIC(void) surf_host_model_init_current_default();
388 /** \ingroup SURF_models
389 * \brief Initializes the platform with the model L07
391 * With this model, only parallel tasks can be used. Resource sharing is done by identifying bottlenecks and giving an
392 * equal share of the model to each action.
394 XBT_PUBLIC(void) surf_host_model_init_ptask_L07();
396 /** \ingroup SURF_models
397 * \brief The list of all available host model models
399 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_host_model_description[];
401 /** \ingroup SURF_models
402 * \brief Initializes the platform with the current best network and cpu models at hand
404 * This platform model seperates the host model and the network model.
405 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
406 * traffic support) and the CPU model with the model Cas01.
407 * Such model is subject to modification with warning in the ChangeLog so monitor it!
409 XBT_PUBLIC(void) surf_vm_model_init_HL13();
411 /** \ingroup SURF_simulation
412 * \brief List of hosts for which one want to be notified if they ever restart.
414 XBT_PUBLIC_DATA(xbt_dict_t) watched_hosts_lib;
416 /*** SURF Globals **************************/
418 /** \ingroup SURF_simulation
419 * \brief Initialize SURF
420 * \param argc argument number
421 * \param argv arguments
423 * This function has to be called to initialize the common structures. Then you will have to create the environment by
424 * calling e.g. surf_host_model_init_CM02()
426 * \see surf_host_model_init_CM02(), surf_host_model_init_compound(), surf_exit()
428 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
430 /** \ingroup SURF_simulation
431 * \brief Finish simulation initialization
433 * This function must be called before the first call to surf_solve()
435 XBT_PUBLIC(void) surf_presolve();
437 /** \ingroup SURF_simulation
438 * \brief Performs a part of the simulation
439 * \param max_date Maximum date to update the simulation to, or -1
440 * \return the elapsed time, or -1.0 if no event could be executed
442 * This function execute all possible events, update the action states and returns the time elapsed.
443 * When you call execute or communicate on a model, the corresponding actions are not executed immediately but only
444 * when you call surf_solve.
445 * Note that the returned elapsed time can be zero.
447 XBT_PUBLIC(double) surf_solve(double max_date);
449 /** \ingroup SURF_simulation
450 * \brief Return the current time
452 * Return the current time in millisecond.
454 XBT_PUBLIC(double) surf_get_clock();
456 /** \ingroup SURF_simulation
463 XBT_PUBLIC(void) surf_exit();
465 /* Prototypes of the functions that handle the properties */
466 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set;// the prop set for the currently parsed element (also used in SIMIX)
468 /* surf parse file related (public because called from a test suite) */
469 XBT_PUBLIC(void) parse_platform_file(const char *file);
471 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
472 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
475 * Returns the initial path. On Windows the initial path is the current directory for the current process in the other
476 * case the function returns "./" that represents the current directory on Unix/Linux platforms.
478 const char *__surf_get_initial_path();
480 /********** Tracing **********/
481 /* from surf_instr.c */
482 void TRACE_surf_action(surf_action_t surf_action, const char *category);
483 void TRACE_surf_alloc();
484 void TRACE_surf_release();
486 /* instr_routing.c */
487 void instr_routing_define_callbacks ();
488 void instr_new_variable_type (const char *new_typename, const char *color);
489 void instr_new_user_variable_type (const char *father_type, const char *new_typename, const char *color);
490 void instr_new_user_state_type (const char *father_type, const char *new_typename);
491 void instr_new_value_for_user_state_type (const char *_typename, const char *value, const char *color);
492 int instr_platform_traced ();
493 xbt_graph_t instr_routing_platform_graph ();
494 void instr_routing_platform_graph_export_graphviz (xbt_graph_t g, const char *filename);