1 /* Copyright (c) 2004-2018. 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/forward.h"
10 #include "src/internal_config.h"
11 #include "xbt/config.h"
13 #include "xbt/dynar.h"
14 #include "xbt/graph.h"
18 #error This is a C++ only file, now
27 class NetworkCm02Link;
31 /** @ingroup SURF_c_bindings
32 * \brief Model datatype
34 * Generic data structure for a model. The hosts,
35 * the CPUs and the network links are examples of models.
37 typedef simgrid::surf::CpuModel* surf_cpu_model_t;
38 typedef simgrid::surf::HostModel* surf_host_model_t;
39 typedef simgrid::surf::NetworkModel* surf_network_model_t;
40 typedef simgrid::surf::StorageModel* surf_storage_model_t;
42 /* Actions and models are highly connected structures... */
44 /** \brief Resource model description
46 struct surf_model_description {
48 const char* description;
49 void_f_void_t model_init_preparse;
51 typedef struct surf_model_description s_surf_model_description_t;
53 XBT_PUBLIC int find_model_description(s_surf_model_description_t* table, std::string name);
54 XBT_PUBLIC void model_help(const char* category, s_surf_model_description_t* table);
56 /***************************/
57 /* Generic model object */
58 /***************************/
60 /** @{ @ingroup SURF_c_bindings */
63 * @brief Pop an action from the done actions set
65 * @param model The model from which the action is extracted
66 * @return An action in done state
68 XBT_PUBLIC simgrid::kernel::resource::Action*
69 surf_model_extract_done_action_set(simgrid::kernel::resource::Model* model);
72 * @brief Pop an action from the failed actions set
74 * @param model The model from which the action is extracted
75 * @return An action in failed state
77 XBT_PUBLIC simgrid::kernel::resource::Action*
78 surf_model_extract_failed_action_set(simgrid::kernel::resource::Model* model);
81 * @brief Get the size of the running action set of a model
83 * @param model The model
84 * @return The size of the running action set
86 XBT_PUBLIC int surf_model_running_action_set_size(simgrid::kernel::resource::Model* model);
89 * @brief [brief description]
90 * @details [long description]
92 * @param action The surf cpu action
93 * @param bound [description]
95 XBT_PUBLIC void surf_cpu_action_set_bound(simgrid::kernel::resource::Action* action, double bound);
99 /**************************************/
100 /* Implementations of model object */
101 /**************************************/
103 /** \ingroup SURF_models
104 * \brief The CPU model object for the physical machine layer
106 XBT_PUBLIC_DATA surf_cpu_model_t surf_cpu_model_pm;
108 /** \ingroup SURF_models
109 * \brief The CPU model object for the virtual machine layer
111 XBT_PUBLIC_DATA surf_cpu_model_t surf_cpu_model_vm;
113 /** \ingroup SURF_models
114 * \brief Initializes the CPU model with the model Cas01
116 * By default, this model uses the lazy optimization mechanism that relies on partial invalidation in LMM and a heap
117 * for lazy action update.
118 * You can change this behavior by setting the cpu/optim configuration variable to a different value.
120 * You shouldn't have to call it by yourself.
122 XBT_PUBLIC void surf_cpu_model_init_Cas01();
124 /** \ingroup SURF_models
125 * \brief Initializes the CPU model with trace integration [Deprecated]
127 * You shouldn't have to call it by yourself.
129 XBT_PUBLIC void surf_cpu_model_init_ti();
131 /** \ingroup SURF_models
132 * \brief The list of all available optimization modes (both for cpu and networks).
133 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
135 XBT_PUBLIC_DATA s_surf_model_description_t surf_optimization_mode_description[];
137 /** \ingroup SURF_plugins
138 * \brief The list of all available surf plugins
140 XBT_PUBLIC_DATA s_surf_model_description_t surf_plugin_description[];
142 /** \ingroup SURF_models
143 * \brief The list of all available cpu model models
145 XBT_PUBLIC_DATA s_surf_model_description_t surf_cpu_model_description[];
147 /** \ingroup SURF_models
148 * \brief The network model
150 * When creating a new API on top on SURF, you shouldn't use the network model unless you know what you are doing.
151 * Only the host model should be accessed because depending on the platform model, the network model can be NULL.
153 XBT_PUBLIC_DATA surf_network_model_t surf_network_model;
155 /** \ingroup SURF_models
156 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
158 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud based on the model 'LV08' and
159 * different correction factors depending on the communication size (< 1KiB, < 64KiB, >= 64KiB).
160 * See comments in the code for more information.
162 * \see surf_host_model_init_SMPI()
164 XBT_PUBLIC void surf_network_model_init_SMPI();
166 /** \ingroup SURF_models
167 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
169 * This model impelments a variant of the contention model on Infinband networks based on
170 * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
172 * \see surf_host_model_init_IB()
174 XBT_PUBLIC void surf_network_model_init_IB();
176 /** \ingroup SURF_models
177 * \brief Initializes the platform with the network model 'LegrandVelho'
179 * This model is proposed by Arnaud Legrand and Pedro Velho based on the results obtained with the GTNets simulator for
180 * onelink and dogbone sharing scenarios. See comments in the code for more information.
182 * \see surf_host_model_init_LegrandVelho()
184 XBT_PUBLIC void surf_network_model_init_LegrandVelho();
186 /** \ingroup SURF_models
187 * \brief Initializes the platform with the network model 'Constant'
189 * In this model, the communication time between two network cards is constant, hence no need for a routing table.
190 * This is particularly useful when simulating huge distributed algorithms where scalability is really an issue. This
191 * function is called in conjunction with surf_host_model_init_compound.
193 * \see surf_host_model_init_compound()
195 XBT_PUBLIC void surf_network_model_init_Constant();
197 /** \ingroup SURF_models
198 * \brief Initializes the platform with the network model CM02
200 * You sould call this function by yourself only if you plan using surf_host_model_init_compound.
201 * See comments in the code for more information.
203 XBT_PUBLIC void surf_network_model_init_CM02();
205 /** \ingroup SURF_models
206 * \brief Initializes the platform with the network model NS3
208 * This function is called by surf_host_model_init_NS3 or by yourself only if you plan using
209 * surf_host_model_init_compound
211 * \see surf_host_model_init_NS3()
213 XBT_PUBLIC void surf_network_model_init_NS3();
215 /** \ingroup SURF_models
216 * \brief Initializes the platform with the network model Reno
218 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
221 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
222 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
224 * Call this function only if you plan using surf_host_model_init_compound.
226 XBT_PUBLIC void surf_network_model_init_Reno();
228 /** \ingroup SURF_models
229 * \brief Initializes the platform with the network model Reno2
231 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
234 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
235 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
237 * Call this function only if you plan using surf_host_model_init_compound.
239 XBT_PUBLIC void surf_network_model_init_Reno2();
241 /** \ingroup SURF_models
242 * \brief Initializes the platform with the network model Vegas
244 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent to the proportional fairness.
247 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
248 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
250 * Call this function only if you plan using surf_host_model_init_compound.
252 XBT_PUBLIC void surf_network_model_init_Vegas();
254 /** \ingroup SURF_models
255 * \brief The list of all available network model models
257 XBT_PUBLIC_DATA s_surf_model_description_t surf_network_model_description[];
259 /** \ingroup SURF_models
260 * \brief The storage model
262 XBT_PUBLIC void surf_storage_model_init_default();
264 /** \ingroup SURF_models
265 * \brief The list of all available storage modes.
266 * This storage mode can be set using --cfg=storage/model:...
268 XBT_PUBLIC_DATA s_surf_model_description_t surf_storage_model_description[];
270 XBT_PUBLIC_DATA surf_storage_model_t surf_storage_model;
272 /** \ingroup SURF_models
273 * \brief The host model
275 * Note that when you create an API on top of SURF, the host model should be the only one you use
276 * because depending on the platform model, the network model and the CPU model may not exist.
278 XBT_PUBLIC_DATA surf_host_model_t surf_host_model;
280 /** \ingroup SURF_models
281 * \brief Initializes the platform with a compound host model
283 * This function should be called after a cpu_model and a network_model have been set up.
285 XBT_PUBLIC void surf_host_model_init_compound();
287 /** \ingroup SURF_models
288 * \brief Initializes the platform with the current best network and cpu models at hand
290 * This platform model separates the host model and the network model.
291 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
292 * traffic support) and the CPU model with the model Cas01.
293 * Such model is subject to modification with warning in the ChangeLog so monitor it!
295 XBT_PUBLIC void surf_host_model_init_current_default();
297 /** \ingroup SURF_models
298 * \brief Initializes the platform with the model L07
300 * With this model, only parallel tasks can be used. Resource sharing is done by identifying bottlenecks and giving an
301 * equal share of the model to each action.
303 XBT_PUBLIC void surf_host_model_init_ptask_L07();
305 /** \ingroup SURF_models
306 * \brief The list of all available host model models
308 XBT_PUBLIC_DATA s_surf_model_description_t surf_host_model_description[];
310 /** \ingroup SURF_models
311 * \brief Initializes the platform with the current best network and cpu models at hand
313 * This platform model seperates the host model and the network model.
314 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
315 * traffic support) and the CPU model with the model Cas01.
316 * Such model is subject to modification with warning in the ChangeLog so monitor it!
318 XBT_PUBLIC void surf_vm_model_init_HL13();
320 /*** SURF Globals **************************/
322 /** \ingroup SURF_simulation
323 * \brief Initialize SURF
324 * \param argc argument number
325 * \param argv arguments
327 * This function has to be called to initialize the common structures. Then you will have to create the environment by
328 * calling e.g. surf_host_model_init_CM02()
330 * \see surf_host_model_init_CM02(), surf_host_model_init_compound(), surf_exit()
332 XBT_PUBLIC void surf_init(int* argc, char** argv); /* initialize common structures */
334 /** \ingroup SURF_simulation
335 * \brief Finish simulation initialization
337 * This function must be called before the first call to surf_solve()
339 XBT_PUBLIC void surf_presolve();
341 /** \ingroup SURF_simulation
342 * \brief Performs a part of the simulation
343 * \param max_date Maximum date to update the simulation to, or -1
344 * \return the elapsed time, or -1.0 if no event could be executed
346 * This function execute all possible events, update the action states and returns the time elapsed.
347 * When you call execute or communicate on a model, the corresponding actions are not executed immediately but only
348 * when you call surf_solve.
349 * Note that the returned elapsed time can be zero.
351 XBT_PUBLIC double surf_solve(double max_date);
353 /** \ingroup SURF_simulation
354 * \brief Return the current time
356 * Return the current time in millisecond.
358 XBT_PUBLIC double surf_get_clock();
360 /** \ingroup SURF_simulation
367 XBT_PUBLIC void surf_exit();
369 /* surf parse file related (public because called from a test suite) */
370 XBT_PUBLIC void parse_platform_file(const char* file);
372 /********** Tracing **********/
374 /* instr_routing.c */
375 void instr_routing_define_callbacks();
376 xbt_graph_t instr_routing_platform_graph();
377 void instr_routing_platform_graph_export_graphviz(xbt_graph_t g, const char* filename);