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"
23 class NetworkCm02Link;
27 /** @ingroup SURF_c_bindings
28 * \brief Model datatype
30 * Generic data structure for a model. The hosts,
31 * the CPUs and the network links are examples of models.
33 typedef simgrid::surf::CpuModel* surf_cpu_model_t;
34 typedef simgrid::surf::HostModel* surf_host_model_t;
35 typedef simgrid::surf::NetworkModel* surf_network_model_t;
36 typedef simgrid::surf::StorageModel* surf_storage_model_t;
38 /* Actions and models are highly connected structures... */
40 /** \brief Resource model description
42 struct surf_model_description {
44 const char* description;
45 void_f_void_t model_init_preparse;
47 typedef struct surf_model_description s_surf_model_description_t;
49 XBT_PUBLIC int find_model_description(s_surf_model_description_t* table, std::string name);
50 XBT_PUBLIC void model_help(const char* category, s_surf_model_description_t* table);
52 /***************************/
53 /* Generic model object */
54 /***************************/
56 /** @{ @ingroup SURF_c_bindings */
59 * @brief Pop an action from the done actions set
61 * @param model The model from which the action is extracted
62 * @return An action in done state
64 XBT_PUBLIC simgrid::kernel::resource::Action*
65 surf_model_extract_done_action_set(simgrid::kernel::resource::Model* model);
68 * @brief Pop an action from the failed actions set
70 * @param model The model from which the action is extracted
71 * @return An action in failed state
73 XBT_PUBLIC simgrid::kernel::resource::Action*
74 surf_model_extract_failed_action_set(simgrid::kernel::resource::Model* model);
77 * @brief Get the size of the running action set of a model
79 * @param model The model
80 * @return The size of the running action set
82 XBT_PUBLIC int surf_model_running_action_set_size(simgrid::kernel::resource::Model* model);
85 * @brief [brief description]
86 * @details [long description]
88 * @param action The surf cpu action
89 * @param bound [description]
91 XBT_PUBLIC void surf_cpu_action_set_bound(simgrid::kernel::resource::Action* action, double bound);
95 /**************************************/
96 /* Implementations of model object */
97 /**************************************/
99 /** \ingroup SURF_models
100 * \brief The CPU model object for the physical machine layer
102 XBT_PUBLIC_DATA surf_cpu_model_t surf_cpu_model_pm;
104 /** \ingroup SURF_models
105 * \brief The CPU model object for the virtual machine layer
107 XBT_PUBLIC_DATA surf_cpu_model_t surf_cpu_model_vm;
109 /** \ingroup SURF_models
110 * \brief Initializes the CPU model with the model Cas01
112 * By default, this model uses the lazy optimization mechanism that relies on partial invalidation in LMM and a heap
113 * for lazy action update.
114 * You can change this behavior by setting the cpu/optim configuration variable to a different value.
116 * You shouldn't have to call it by yourself.
118 XBT_PUBLIC void surf_cpu_model_init_Cas01();
120 /** \ingroup SURF_models
121 * \brief Initializes the CPU model with trace integration [Deprecated]
123 * You shouldn't have to call it by yourself.
125 XBT_PUBLIC void surf_cpu_model_init_ti();
127 /** \ingroup SURF_models
128 * \brief The list of all available optimization modes (both for cpu and networks).
129 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
131 XBT_PUBLIC_DATA s_surf_model_description_t surf_optimization_mode_description[];
133 /** \ingroup SURF_plugins
134 * \brief The list of all available surf plugins
136 XBT_PUBLIC_DATA s_surf_model_description_t surf_plugin_description[];
138 /** \ingroup SURF_models
139 * \brief The list of all available cpu model models
141 XBT_PUBLIC_DATA s_surf_model_description_t surf_cpu_model_description[];
143 /** \ingroup SURF_models
144 * \brief The network model
146 * When creating a new API on top on SURF, you shouldn't use the network model unless you know what you are doing.
147 * Only the host model should be accessed because depending on the platform model, the network model can be NULL.
149 XBT_PUBLIC_DATA surf_network_model_t surf_network_model;
151 /** \ingroup SURF_models
152 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
154 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud based on the model 'LV08' and
155 * different correction factors depending on the communication size (< 1KiB, < 64KiB, >= 64KiB).
156 * See comments in the code for more information.
158 * \see surf_host_model_init_SMPI()
160 XBT_PUBLIC void surf_network_model_init_SMPI();
162 /** \ingroup SURF_models
163 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
165 * This model impelments a variant of the contention model on Infinband networks based on
166 * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
168 * \see surf_host_model_init_IB()
170 XBT_PUBLIC void surf_network_model_init_IB();
172 /** \ingroup SURF_models
173 * \brief Initializes the platform with the network model 'LegrandVelho'
175 * This model is proposed by Arnaud Legrand and Pedro Velho based on the results obtained with the GTNets simulator for
176 * onelink and dogbone sharing scenarios. See comments in the code for more information.
178 * \see surf_host_model_init_LegrandVelho()
180 XBT_PUBLIC void surf_network_model_init_LegrandVelho();
182 /** \ingroup SURF_models
183 * \brief Initializes the platform with the network model 'Constant'
185 * In this model, the communication time between two network cards is constant, hence no need for a routing table.
186 * This is particularly useful when simulating huge distributed algorithms where scalability is really an issue. This
187 * function is called in conjunction with surf_host_model_init_compound.
189 * \see surf_host_model_init_compound()
191 XBT_PUBLIC void surf_network_model_init_Constant();
193 /** \ingroup SURF_models
194 * \brief Initializes the platform with the network model CM02
196 * You sould call this function by yourself only if you plan using surf_host_model_init_compound.
197 * See comments in the code for more information.
199 XBT_PUBLIC void surf_network_model_init_CM02();
201 /** \ingroup SURF_models
202 * \brief Initializes the platform with the network model NS3
204 * This function is called by surf_host_model_init_NS3 or by yourself only if you plan using
205 * surf_host_model_init_compound
207 * \see surf_host_model_init_NS3()
209 XBT_PUBLIC void surf_network_model_init_NS3();
211 /** \ingroup SURF_models
212 * \brief Initializes the platform with the network model Reno
214 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
217 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
218 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
220 * Call this function only if you plan using surf_host_model_init_compound.
222 XBT_PUBLIC void surf_network_model_init_Reno();
224 /** \ingroup SURF_models
225 * \brief Initializes the platform with the network model Reno2
227 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
230 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
231 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
233 * Call this function only if you plan using surf_host_model_init_compound.
235 XBT_PUBLIC void surf_network_model_init_Reno2();
237 /** \ingroup SURF_models
238 * \brief Initializes the platform with the network model Vegas
240 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent to the proportional fairness.
243 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
244 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
246 * Call this function only if you plan using surf_host_model_init_compound.
248 XBT_PUBLIC void surf_network_model_init_Vegas();
250 /** \ingroup SURF_models
251 * \brief The list of all available network model models
253 XBT_PUBLIC_DATA s_surf_model_description_t surf_network_model_description[];
255 /** \ingroup SURF_models
256 * \brief The storage model
258 XBT_PUBLIC void surf_storage_model_init_default();
260 /** \ingroup SURF_models
261 * \brief The list of all available storage modes.
262 * This storage mode can be set using --cfg=storage/model:...
264 XBT_PUBLIC_DATA s_surf_model_description_t surf_storage_model_description[];
266 XBT_PUBLIC_DATA surf_storage_model_t surf_storage_model;
268 /** \ingroup SURF_models
269 * \brief The host model
271 * Note that when you create an API on top of SURF, the host model should be the only one you use
272 * because depending on the platform model, the network model and the CPU model may not exist.
274 XBT_PUBLIC_DATA surf_host_model_t surf_host_model;
276 /** \ingroup SURF_models
277 * \brief Initializes the platform with a compound host model
279 * This function should be called after a cpu_model and a network_model have been set up.
281 XBT_PUBLIC void surf_host_model_init_compound();
283 /** \ingroup SURF_models
284 * \brief Initializes the platform with the current best network and cpu models at hand
286 * This platform model separates the host model and the network model.
287 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
288 * traffic support) and the CPU model with the model Cas01.
289 * Such model is subject to modification with warning in the ChangeLog so monitor it!
291 XBT_PUBLIC void surf_host_model_init_current_default();
293 /** \ingroup SURF_models
294 * \brief Initializes the platform with the model L07
296 * With this model, only parallel tasks can be used. Resource sharing is done by identifying bottlenecks and giving an
297 * equal share of the model to each action.
299 XBT_PUBLIC void surf_host_model_init_ptask_L07();
301 /** \ingroup SURF_models
302 * \brief The list of all available host model models
304 XBT_PUBLIC_DATA s_surf_model_description_t surf_host_model_description[];
306 /** \ingroup SURF_models
307 * \brief Initializes the platform with the current best network and cpu models at hand
309 * This platform model seperates the host model and the network model.
310 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
311 * traffic support) and the CPU model with the model Cas01.
312 * Such model is subject to modification with warning in the ChangeLog so monitor it!
314 XBT_PUBLIC void surf_vm_model_init_HL13();
316 /*** SURF Globals **************************/
318 /** \ingroup SURF_simulation
319 * \brief Initialize SURF
320 * \param argc argument number
321 * \param argv arguments
323 * This function has to be called to initialize the common structures. Then you will have to create the environment by
324 * calling e.g. surf_host_model_init_CM02()
326 * \see surf_host_model_init_CM02(), surf_host_model_init_compound(), surf_exit()
328 XBT_PUBLIC void surf_init(int* argc, char** argv); /* initialize common structures */
330 /** \ingroup SURF_simulation
331 * \brief Finish simulation initialization
333 * This function must be called before the first call to surf_solve()
335 XBT_PUBLIC void surf_presolve();
337 /** \ingroup SURF_simulation
338 * \brief Performs a part of the simulation
339 * \param max_date Maximum date to update the simulation to, or -1
340 * \return the elapsed time, or -1.0 if no event could be executed
342 * This function execute all possible events, update the action states and returns the time elapsed.
343 * When you call execute or communicate on a model, the corresponding actions are not executed immediately but only
344 * when you call surf_solve.
345 * Note that the returned elapsed time can be zero.
347 XBT_PUBLIC double surf_solve(double max_date);
349 /** \ingroup SURF_simulation
350 * \brief Return the current time
352 * Return the current time in millisecond.
354 XBT_PUBLIC double surf_get_clock();
356 /** \ingroup SURF_simulation
363 XBT_PUBLIC void surf_exit();
365 /* surf parse file related (public because called from a test suite) */
366 XBT_PUBLIC void parse_platform_file(const char* file);
368 /********** Tracing **********/
370 /* instr_routing.c */
371 void instr_routing_define_callbacks();
372 xbt_graph_t instr_routing_platform_graph();
373 void instr_routing_platform_graph_export_graphviz(xbt_graph_t g, const char* filename);