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. */
9 #include "simgrid/datatypes.h"
10 #include "simgrid/forward.h"
11 #include "src/internal_config.h"
12 #include "xbt/config.h"
14 #include "xbt/dynar.h"
15 #include "xbt/graph.h"
19 #error This is a C++ only file, now
29 class NetworkCm02Link;
34 /** @ingroup SURF_c_bindings
35 * \brief Model datatype
37 * Generic data structure for a model. The hosts,
38 * the CPUs and the network links are examples of models.
40 typedef simgrid::surf::Model* surf_model_t;
41 typedef simgrid::surf::CpuModel* surf_cpu_model_t;
42 typedef simgrid::surf::HostModel* surf_host_model_t;
43 typedef simgrid::surf::NetworkModel* surf_network_model_t;
44 typedef simgrid::surf::StorageModel* surf_storage_model_t;
45 /** @ingroup SURF_c_bindings
46 * \brief Action structure
48 * Never create s_surf_action_t by yourself ! The actions are created
49 * on the fly when you call execute or communicate on a model.
51 * \see e_surf_action_state_t
53 typedef simgrid::surf::Action* surf_action_t;
56 /* Actions and models are highly connected structures... */
58 /* user-visible parameters */
59 extern XBT_PRIVATE double sg_tcp_gamma;
60 extern XBT_PRIVATE double sg_latency_factor;
61 extern XBT_PRIVATE double sg_bandwidth_factor;
62 extern XBT_PRIVATE double sg_weight_S_parameter;
63 extern XBT_PRIVATE int sg_network_crosstraffic;
65 /** \brief Resource model description
67 struct surf_model_description {
69 const char* description;
70 void_f_void_t model_init_preparse;
72 typedef struct surf_model_description s_surf_model_description_t;
74 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t* table, std::string name);
75 XBT_PUBLIC(void) model_help(const char* category, s_surf_model_description_t* table);
77 /***************************/
78 /* Generic model object */
79 /***************************/
81 /** @{ @ingroup SURF_c_bindings */
84 * @brief Pop an action from the done actions set
86 * @param model The model from which the action is extracted
87 * @return An action in done state
89 XBT_PUBLIC(surf_action_t) surf_model_extract_done_action_set(surf_model_t model);
92 * @brief Pop an action from the failed actions set
94 * @param model The model from which the action is extracted
95 * @return An action in failed state
97 XBT_PUBLIC(surf_action_t) surf_model_extract_failed_action_set(surf_model_t model);
100 * @brief Get the size of the running action set of a model
102 * @param model The model
103 * @return The size of the running action set
105 XBT_PUBLIC(int) surf_model_running_action_set_size(surf_model_t model);
108 * @brief [brief description]
109 * @details [long description]
111 * @param action The surf cpu action
112 * @param bound [description]
114 XBT_PUBLIC(void) surf_cpu_action_set_bound(surf_action_t action, double bound);
117 * @brief [brief description]
118 * @details [long description]
120 * @param action The surf network action
122 XBT_PUBLIC(double) surf_network_action_get_latency_limited(surf_action_t action);
126 /**************************************/
127 /* Implementations of model object */
128 /**************************************/
130 /** \ingroup SURF_models
131 * \brief The CPU model object for the physical machine layer
133 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_pm;
135 /** \ingroup SURF_models
136 * \brief The CPU model object for the virtual machine layer
138 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_vm;
140 /** \ingroup SURF_models
141 * \brief Initializes the CPU model with the model Cas01
143 * By default, this model uses the lazy optimization mechanism that relies on partial invalidation in LMM and a heap
144 * for lazy action update.
145 * You can change this behavior by setting the cpu/optim configuration variable to a different value.
147 * You shouldn't have to call it by yourself.
149 XBT_PUBLIC(void) surf_cpu_model_init_Cas01();
151 /** \ingroup SURF_models
152 * \brief Initializes the CPU model with trace integration [Deprecated]
154 * You shouldn't have to call it by yourself.
156 XBT_PUBLIC(void) surf_cpu_model_init_ti();
158 /** \ingroup SURF_models
159 * \brief The list of all available optimization modes (both for cpu and networks).
160 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
162 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
164 /** \ingroup SURF_plugins
165 * \brief The list of all available surf plugins
167 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_plugin_description[];
169 /** \ingroup SURF_models
170 * \brief The list of all available cpu model models
172 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
174 /** \ingroup SURF_models
175 * \brief The network model
177 * When creating a new API on top on SURF, you shouldn't use the network model unless you know what you are doing.
178 * Only the host model should be accessed because depending on the platform model, the network model can be NULL.
180 XBT_PUBLIC_DATA(surf_network_model_t) surf_network_model;
182 /** \ingroup SURF_models
183 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
185 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud based on the model 'LV08' and
186 * different correction factors depending on the communication size (< 1KiB, < 64KiB, >= 64KiB).
187 * See comments in the code for more information.
189 * \see surf_host_model_init_SMPI()
191 XBT_PUBLIC(void) surf_network_model_init_SMPI();
193 /** \ingroup SURF_models
194 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
196 * This model impelments a variant of the contention model on Infinband networks based on
197 * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
199 * \see surf_host_model_init_IB()
201 XBT_PUBLIC(void) surf_network_model_init_IB();
203 /** \ingroup SURF_models
204 * \brief Initializes the platform with the network model 'LegrandVelho'
206 * This model is proposed by Arnaud Legrand and Pedro Velho based on the results obtained with the GTNets simulator for
207 * onelink and dogbone sharing scenarios. See comments in the code for more information.
209 * \see surf_host_model_init_LegrandVelho()
211 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho();
213 /** \ingroup SURF_models
214 * \brief Initializes the platform with the network model 'Constant'
216 * In this model, the communication time between two network cards is constant, hence no need for a routing table.
217 * This is particularly useful when simulating huge distributed algorithms where scalability is really an issue. This
218 * function is called in conjunction with surf_host_model_init_compound.
220 * \see surf_host_model_init_compound()
222 XBT_PUBLIC(void) surf_network_model_init_Constant();
224 /** \ingroup SURF_models
225 * \brief Initializes the platform with the network model CM02
227 * You sould call this function by yourself only if you plan using surf_host_model_init_compound.
228 * See comments in the code for more information.
230 XBT_PUBLIC(void) surf_network_model_init_CM02();
232 /** \ingroup SURF_models
233 * \brief Initializes the platform with the network model NS3
235 * This function is called by surf_host_model_init_NS3 or by yourself only if you plan using
236 * surf_host_model_init_compound
238 * \see surf_host_model_init_NS3()
240 XBT_PUBLIC(void) surf_network_model_init_NS3();
242 /** \ingroup SURF_models
243 * \brief Initializes the platform with the network model Reno
245 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
248 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
249 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
251 * Call this function only if you plan using surf_host_model_init_compound.
253 XBT_PUBLIC(void) surf_network_model_init_Reno();
255 /** \ingroup SURF_models
256 * \brief Initializes the platform with the network model Reno2
258 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
261 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
262 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
264 * Call this function only if you plan using surf_host_model_init_compound.
266 XBT_PUBLIC(void) surf_network_model_init_Reno2();
268 /** \ingroup SURF_models
269 * \brief Initializes the platform with the network model Vegas
271 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent to the proportional fairness.
274 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
275 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
277 * Call this function only if you plan using surf_host_model_init_compound.
279 XBT_PUBLIC(void) surf_network_model_init_Vegas();
281 /** \ingroup SURF_models
282 * \brief The list of all available network model models
284 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_network_model_description[];
286 /** \ingroup SURF_models
287 * \brief The storage model
289 XBT_PUBLIC(void) surf_storage_model_init_default();
291 /** \ingroup SURF_models
292 * \brief The list of all available storage modes.
293 * This storage mode can be set using --cfg=storage/model:...
295 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
297 XBT_PUBLIC_DATA(surf_storage_model_t) surf_storage_model;
299 /** \ingroup SURF_models
300 * \brief The host model
302 * Note that when you create an API on top of SURF, the host model should be the only one you use
303 * because depending on the platform model, the network model and the CPU model may not exist.
305 XBT_PUBLIC_DATA(surf_host_model_t) surf_host_model;
307 /** \ingroup SURF_models
308 * \brief Initializes the platform with a compound host model
310 * This function should be called after a cpu_model and a network_model have been set up.
312 XBT_PUBLIC(void) surf_host_model_init_compound();
314 /** \ingroup SURF_models
315 * \brief Initializes the platform with the current best network and cpu models at hand
317 * This platform model separates the host model and the network model.
318 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
319 * traffic support) and the CPU model with the model Cas01.
320 * Such model is subject to modification with warning in the ChangeLog so monitor it!
322 XBT_PUBLIC(void) surf_host_model_init_current_default();
324 /** \ingroup SURF_models
325 * \brief Initializes the platform with the model L07
327 * With this model, only parallel tasks can be used. Resource sharing is done by identifying bottlenecks and giving an
328 * equal share of the model to each action.
330 XBT_PUBLIC(void) surf_host_model_init_ptask_L07();
332 /** \ingroup SURF_models
333 * \brief The list of all available host model models
335 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_host_model_description[];
337 /** \ingroup SURF_models
338 * \brief Initializes the platform with the current best network and cpu models at hand
340 * This platform model seperates the host model and the network model.
341 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
342 * traffic support) and the CPU model with the model Cas01.
343 * Such model is subject to modification with warning in the ChangeLog so monitor it!
345 XBT_PUBLIC(void) surf_vm_model_init_HL13();
347 /*** SURF Globals **************************/
349 /** \ingroup SURF_simulation
350 * \brief Initialize SURF
351 * \param argc argument number
352 * \param argv arguments
354 * This function has to be called to initialize the common structures. Then you will have to create the environment by
355 * calling e.g. surf_host_model_init_CM02()
357 * \see surf_host_model_init_CM02(), surf_host_model_init_compound(), surf_exit()
359 XBT_PUBLIC(void) surf_init(int* argc, char** argv); /* initialize common structures */
361 /** \ingroup SURF_simulation
362 * \brief Finish simulation initialization
364 * This function must be called before the first call to surf_solve()
366 XBT_PUBLIC(void) surf_presolve();
368 /** \ingroup SURF_simulation
369 * \brief Performs a part of the simulation
370 * \param max_date Maximum date to update the simulation to, or -1
371 * \return the elapsed time, or -1.0 if no event could be executed
373 * This function execute all possible events, update the action states and returns the time elapsed.
374 * When you call execute or communicate on a model, the corresponding actions are not executed immediately but only
375 * when you call surf_solve.
376 * Note that the returned elapsed time can be zero.
378 XBT_PUBLIC(double) surf_solve(double max_date);
380 /** \ingroup SURF_simulation
381 * \brief Return the current time
383 * Return the current time in millisecond.
385 XBT_PUBLIC(double) surf_get_clock();
387 /** \ingroup SURF_simulation
394 XBT_PUBLIC(void) surf_exit();
396 /* surf parse file related (public because called from a test suite) */
397 XBT_PUBLIC(void) parse_platform_file(const char* file);
399 /********** Tracing **********/
400 /* from surf_instr.c */
401 void TRACE_surf_action(surf_action_t surf_action, const char* category);
403 /* instr_routing.c */
404 void instr_routing_define_callbacks();
405 int instr_platform_traced();
406 xbt_graph_t instr_routing_platform_graph();
407 void instr_routing_platform_graph_export_graphviz(xbt_graph_t g, const char* filename);