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"
30 class NetworkCm02Link;
35 typedef simgrid::surf::Model surf_Model;
36 typedef simgrid::surf::CpuModel surf_CpuModel;
37 typedef simgrid::surf::Cpu surf_Cpu;
38 typedef simgrid::surf::HostModel surf_HostModel;
39 typedef simgrid::surf::NetworkModel surf_NetworkModel;
40 typedef simgrid::surf::StorageModel surf_StorageModel;
41 typedef simgrid::surf::Resource surf_Resource;
42 typedef simgrid::surf::Action surf_Action;
46 typedef struct surf_Model surf_Model;
47 typedef struct surf_CpuModel surf_CpuModel;
48 typedef struct surf_Cpu surf_Cpu;
49 typedef struct surf_HostModel surf_HostModel;
50 typedef struct surf_NetworkModel surf_NetworkModel;
51 typedef struct surf_StorageModel surf_StorageModel;
52 typedef struct surf_Resource surf_Resource;
53 typedef struct surf_Host surf_Host;
54 typedef struct surf_Action surf_Action;
59 /* Actions and models are highly connected structures... */
61 /* user-visible parameters */
62 extern XBT_PRIVATE double sg_tcp_gamma;
63 extern XBT_PRIVATE double sg_sender_gap;
64 extern XBT_PRIVATE double sg_latency_factor;
65 extern XBT_PRIVATE double sg_bandwidth_factor;
66 extern XBT_PRIVATE double sg_weight_S_parameter;
67 extern XBT_PRIVATE int sg_network_crosstraffic;
69 /** @ingroup SURF_c_bindings
70 * \brief Model datatype
72 * Generic data structure for a model. The hosts,
73 * the CPUs and the network links are examples of models.
75 typedef surf_Model *surf_model_t;
76 typedef surf_CpuModel *surf_cpu_model_t;
77 typedef surf_HostModel *surf_host_model_t;
78 typedef surf_NetworkModel *surf_network_model_t;
79 typedef surf_StorageModel *surf_storage_model_t;
81 /** @ingroup SURF_c_bindings
82 * \brief Action structure
84 * Never create s_surf_action_t by yourself ! The actions are created
85 * on the fly when you call execute or communicate on a model.
87 * \see e_surf_action_state_t
89 typedef surf_Action *surf_action_t;
92 /** \brief Resource model description
94 struct surf_model_description {
96 const char *description;
97 void_f_void_t model_init_preparse;
99 typedef struct surf_model_description s_surf_model_description_t;
100 typedef struct surf_model_description* surf_model_description_t;
102 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table, const char *name);
103 XBT_PUBLIC(void) model_help(const char *category, s_surf_model_description_t * table);
105 /***************************/
106 /* Generic model object */
107 /***************************/
109 /** @{ @ingroup SURF_c_bindings */
112 * @brief Pop an action from the done actions set
114 * @param model The model from which the action is extracted
115 * @return An action in done state
117 XBT_PUBLIC(surf_action_t) surf_model_extract_done_action_set(surf_model_t model);
120 * @brief Pop an action from the failed actions set
122 * @param model The model from which the action is extracted
123 * @return An action in failed state
125 XBT_PUBLIC(surf_action_t) surf_model_extract_failed_action_set(surf_model_t model);
128 * @brief Get the size of the running action set of a model
130 * @param model The model
131 * @return The size of the running action set
133 XBT_PUBLIC(int) surf_model_running_action_set_size(surf_model_t model);
136 * @brief [brief description]
137 * @details [long description]
139 * @param action The surf cpu action
140 * @param bound [description]
142 XBT_PUBLIC(void) surf_cpu_action_set_bound(surf_action_t action, double bound);
145 * @brief [brief description]
146 * @details [long description]
148 * @param action The surf network action
150 XBT_PUBLIC(double) surf_network_action_get_latency_limited(surf_action_t action);
154 /**************************************/
155 /* Implementations of model object */
156 /**************************************/
158 /** \ingroup SURF_models
159 * \brief The CPU model object for the physical machine layer
161 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_pm;
163 /** \ingroup SURF_models
164 * \brief The CPU model object for the virtual machine layer
166 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_vm;
169 /** \ingroup SURF_models
170 * \brief Initializes the CPU model with the model Cas01
172 * By default, this model uses the lazy optimization mechanism that relies on partial invalidation in LMM and a heap
173 * for lazy action update.
174 * You can change this behavior by setting the cpu/optim configuration variable to a different value.
176 * You shouldn't have to call it by yourself.
178 XBT_PUBLIC(void) surf_cpu_model_init_Cas01();
180 /** \ingroup SURF_models
181 * \brief Initializes the CPU model with trace integration [Deprecated]
183 * You shouldn't have to call it by yourself.
185 XBT_PUBLIC(void) surf_cpu_model_init_ti();
187 /** \ingroup SURF_models
188 * \brief The list of all available optimization modes (both for cpu and networks).
189 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
191 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
193 /** \ingroup SURF_plugins
194 * \brief The list of all available surf plugins
196 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_plugin_description[];
198 /** \ingroup SURF_models
199 * \brief The list of all available cpu model models
201 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
203 /** \ingroup SURF_models
204 * \brief The network model
206 * When creating a new API on top on SURF, you shouldn't use the network model unless you know what you are doing.
207 * Only the host model should be accessed because depending on the platform model, the network model can be NULL.
209 XBT_PUBLIC_DATA(surf_network_model_t) surf_network_model;
211 /** \ingroup SURF_models
212 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
214 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud based on the model 'LV08' and
215 * different correction factors depending on the communication size (< 1KiB, < 64KiB, >= 64KiB).
216 * See comments in the code for more information.
218 * \see surf_host_model_init_SMPI()
220 XBT_PUBLIC(void) surf_network_model_init_SMPI();
222 /** \ingroup SURF_models
223 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
225 * This model impelments a variant of the contention model on Infinband networks based on
226 * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
228 * \see surf_host_model_init_IB()
230 XBT_PUBLIC(void) surf_network_model_init_IB();
232 /** \ingroup SURF_models
233 * \brief Initializes the platform with the network model 'LegrandVelho'
235 * This model is proposed by Arnaud Legrand and Pedro Velho based on the results obtained with the GTNets simulator for
236 * onelink and dogbone sharing scenarios. See comments in the code for more information.
238 * \see surf_host_model_init_LegrandVelho()
240 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho();
242 /** \ingroup SURF_models
243 * \brief Initializes the platform with the network model 'Constant'
245 * In this model, the communication time between two network cards is constant, hence no need for a routing table.
246 * This is particularly useful when simulating huge distributed algorithms where scalability is really an issue. This
247 * function is called in conjunction with surf_host_model_init_compound.
249 * \see surf_host_model_init_compound()
251 XBT_PUBLIC(void) surf_network_model_init_Constant();
253 /** \ingroup SURF_models
254 * \brief Initializes the platform with the network model CM02
256 * You sould call this function by yourself only if you plan using surf_host_model_init_compound.
257 * See comments in the code for more information.
259 XBT_PUBLIC(void) surf_network_model_init_CM02();
261 /** \ingroup SURF_models
262 * \brief Initializes the platform with the network model NS3
264 * This function is called by surf_host_model_init_NS3 or by yourself only if you plan using
265 * surf_host_model_init_compound
267 * \see surf_host_model_init_NS3()
269 XBT_PUBLIC(void) surf_network_model_init_NS3();
271 /** \ingroup SURF_models
272 * \brief Initializes the platform with the network model Reno
274 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
277 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
278 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
280 * Call this function only if you plan using surf_host_model_init_compound.
282 XBT_PUBLIC(void) surf_network_model_init_Reno();
284 /** \ingroup SURF_models
285 * \brief Initializes the platform with the network model Reno2
287 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
290 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
291 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
293 * Call this function only if you plan using surf_host_model_init_compound.
295 XBT_PUBLIC(void) surf_network_model_init_Reno2();
297 /** \ingroup SURF_models
298 * \brief Initializes the platform with the network model Vegas
300 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent to the proportional fairness.
303 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
304 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
306 * Call this function only if you plan using surf_host_model_init_compound.
308 XBT_PUBLIC(void) surf_network_model_init_Vegas();
310 /** \ingroup SURF_models
311 * \brief The list of all available network model models
313 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_network_model_description[];
315 /** \ingroup SURF_models
316 * \brief The storage model
318 XBT_PUBLIC(void) surf_storage_model_init_default();
320 /** \ingroup SURF_models
321 * \brief The list of all available storage modes.
322 * This storage mode can be set using --cfg=storage/model:...
324 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
326 XBT_PUBLIC_DATA(surf_storage_model_t) surf_storage_model;
328 /** \ingroup SURF_models
329 * \brief The host model
331 * Note that when you create an API on top of SURF, the host model should be the only one you use
332 * because depending on the platform model, the network model and the CPU model may not exist.
334 XBT_PUBLIC_DATA(surf_host_model_t) surf_host_model;
336 /** \ingroup SURF_models
337 * \brief Initializes the platform with a compound host model
339 * This function should be called after a cpu_model and a network_model have been set up.
341 XBT_PUBLIC(void) surf_host_model_init_compound();
343 /** \ingroup SURF_models
344 * \brief Initializes the platform with the current best network and cpu models at hand
346 * This platform model separates the host model and the network model.
347 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
348 * traffic support) and the CPU model with the model Cas01.
349 * Such model is subject to modification with warning in the ChangeLog so monitor it!
351 XBT_PUBLIC(void) surf_host_model_init_current_default();
353 /** \ingroup SURF_models
354 * \brief Initializes the platform with the model L07
356 * With this model, only parallel tasks can be used. Resource sharing is done by identifying bottlenecks and giving an
357 * equal share of the model to each action.
359 XBT_PUBLIC(void) surf_host_model_init_ptask_L07();
361 /** \ingroup SURF_models
362 * \brief The list of all available host model models
364 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_host_model_description[];
366 /** \ingroup SURF_models
367 * \brief Initializes the platform with the current best network and cpu models at hand
369 * This platform model seperates the host model and the network model.
370 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
371 * traffic support) and the CPU model with the model Cas01.
372 * Such model is subject to modification with warning in the ChangeLog so monitor it!
374 XBT_PUBLIC(void) surf_vm_model_init_HL13();
376 /*** SURF Globals **************************/
378 /** \ingroup SURF_simulation
379 * \brief Initialize SURF
380 * \param argc argument number
381 * \param argv arguments
383 * This function has to be called to initialize the common structures. Then you will have to create the environment by
384 * calling e.g. surf_host_model_init_CM02()
386 * \see surf_host_model_init_CM02(), surf_host_model_init_compound(), surf_exit()
388 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
390 /** \ingroup SURF_simulation
391 * \brief Finish simulation initialization
393 * This function must be called before the first call to surf_solve()
395 XBT_PUBLIC(void) surf_presolve();
397 /** \ingroup SURF_simulation
398 * \brief Performs a part of the simulation
399 * \param max_date Maximum date to update the simulation to, or -1
400 * \return the elapsed time, or -1.0 if no event could be executed
402 * This function execute all possible events, update the action states and returns the time elapsed.
403 * When you call execute or communicate on a model, the corresponding actions are not executed immediately but only
404 * when you call surf_solve.
405 * Note that the returned elapsed time can be zero.
407 XBT_PUBLIC(double) surf_solve(double max_date);
409 /** \ingroup SURF_simulation
410 * \brief Return the current time
412 * Return the current time in millisecond.
414 XBT_PUBLIC(double) surf_get_clock();
416 /** \ingroup SURF_simulation
423 XBT_PUBLIC(void) surf_exit();
425 /* surf parse file related (public because called from a test suite) */
426 XBT_PUBLIC(void) parse_platform_file(const char *file);
429 * Returns the initial path. On Windows the initial path is the current directory for the current process in the other
430 * case the function returns "./" that represents the current directory on Unix/Linux platforms.
432 const char *__surf_get_initial_path();
434 /********** Tracing **********/
435 /* from surf_instr.c */
436 void TRACE_surf_action(surf_action_t surf_action, const char *category);
437 void TRACE_surf_alloc();
438 void TRACE_surf_release();
440 /* instr_routing.c */
441 void instr_routing_define_callbacks ();
442 void instr_new_variable_type (const char *new_typename, const char *color);
443 void instr_new_user_variable_type (const char *father_type, const char *new_typename, const char *color);
444 void instr_new_user_state_type (const char *father_type, const char *new_typename);
445 void instr_new_value_for_user_state_type (const char *_typename, const char *value, const char *color);
446 int instr_platform_traced ();
447 xbt_graph_t instr_routing_platform_graph ();
448 void instr_routing_platform_graph_export_graphviz (xbt_graph_t g, const char *filename);