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"
20 #error This is a C++ only file, now
30 class NetworkCm02Link;
35 /** @ingroup SURF_c_bindings
36 * \brief Model datatype
38 * Generic data structure for a model. The hosts,
39 * the CPUs and the network links are examples of models.
41 typedef simgrid::surf::Model* surf_model_t;
42 typedef simgrid::surf::CpuModel* surf_cpu_model_t;
43 typedef simgrid::surf::HostModel* surf_host_model_t;
44 typedef simgrid::surf::NetworkModel* surf_network_model_t;
45 typedef simgrid::surf::StorageModel* surf_storage_model_t;
46 /** @ingroup SURF_c_bindings
47 * \brief Action structure
49 * Never create s_surf_action_t by yourself ! The actions are created
50 * on the fly when you call execute or communicate on a model.
52 * \see e_surf_action_state_t
54 typedef simgrid::surf::Action* surf_action_t;
57 /* Actions and models are highly connected structures... */
59 /* user-visible parameters */
60 extern XBT_PRIVATE double sg_tcp_gamma;
61 extern XBT_PRIVATE double sg_latency_factor;
62 extern XBT_PRIVATE double sg_bandwidth_factor;
63 extern XBT_PRIVATE double sg_weight_S_parameter;
64 extern XBT_PRIVATE int sg_network_crosstraffic;
66 /** \brief Resource model description
68 struct surf_model_description {
70 const char* description;
71 void_f_void_t model_init_preparse;
73 typedef struct surf_model_description s_surf_model_description_t;
75 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t* table, std::string name);
76 XBT_PUBLIC(void) model_help(const char* category, s_surf_model_description_t* table);
78 /***************************/
79 /* Generic model object */
80 /***************************/
82 /** @{ @ingroup SURF_c_bindings */
85 * @brief Pop an action from the done actions set
87 * @param model The model from which the action is extracted
88 * @return An action in done state
90 XBT_PUBLIC(surf_action_t) surf_model_extract_done_action_set(surf_model_t model);
93 * @brief Pop an action from the failed actions set
95 * @param model The model from which the action is extracted
96 * @return An action in failed state
98 XBT_PUBLIC(surf_action_t) surf_model_extract_failed_action_set(surf_model_t model);
101 * @brief Get the size of the running action set of a model
103 * @param model The model
104 * @return The size of the running action set
106 XBT_PUBLIC(int) surf_model_running_action_set_size(surf_model_t model);
109 * @brief [brief description]
110 * @details [long description]
112 * @param action The surf cpu action
113 * @param bound [description]
115 XBT_PUBLIC(void) surf_cpu_action_set_bound(surf_action_t action, double bound);
118 * @brief [brief description]
119 * @details [long description]
121 * @param action The surf network action
123 XBT_PUBLIC(double) surf_network_action_get_latency_limited(surf_action_t action);
127 /**************************************/
128 /* Implementations of model object */
129 /**************************************/
131 /** \ingroup SURF_models
132 * \brief The CPU model object for the physical machine layer
134 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_pm;
136 /** \ingroup SURF_models
137 * \brief The CPU model object for the virtual machine layer
139 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_vm;
141 /** \ingroup SURF_models
142 * \brief Initializes the CPU model with the model Cas01
144 * By default, this model uses the lazy optimization mechanism that relies on partial invalidation in LMM and a heap
145 * for lazy action update.
146 * You can change this behavior by setting the cpu/optim configuration variable to a different value.
148 * You shouldn't have to call it by yourself.
150 XBT_PUBLIC(void) surf_cpu_model_init_Cas01();
152 /** \ingroup SURF_models
153 * \brief Initializes the CPU model with trace integration [Deprecated]
155 * You shouldn't have to call it by yourself.
157 XBT_PUBLIC(void) surf_cpu_model_init_ti();
159 /** \ingroup SURF_models
160 * \brief The list of all available optimization modes (both for cpu and networks).
161 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
163 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
165 /** \ingroup SURF_plugins
166 * \brief The list of all available surf plugins
168 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_plugin_description[];
170 /** \ingroup SURF_models
171 * \brief The list of all available cpu model models
173 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
175 /** \ingroup SURF_models
176 * \brief The network model
178 * When creating a new API on top on SURF, you shouldn't use the network model unless you know what you are doing.
179 * Only the host model should be accessed because depending on the platform model, the network model can be NULL.
181 XBT_PUBLIC_DATA(surf_network_model_t) surf_network_model;
183 /** \ingroup SURF_models
184 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
186 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud based on the model 'LV08' and
187 * different correction factors depending on the communication size (< 1KiB, < 64KiB, >= 64KiB).
188 * See comments in the code for more information.
190 * \see surf_host_model_init_SMPI()
192 XBT_PUBLIC(void) surf_network_model_init_SMPI();
194 /** \ingroup SURF_models
195 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
197 * This model impelments a variant of the contention model on Infinband networks based on
198 * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
200 * \see surf_host_model_init_IB()
202 XBT_PUBLIC(void) surf_network_model_init_IB();
204 /** \ingroup SURF_models
205 * \brief Initializes the platform with the network model 'LegrandVelho'
207 * This model is proposed by Arnaud Legrand and Pedro Velho based on the results obtained with the GTNets simulator for
208 * onelink and dogbone sharing scenarios. See comments in the code for more information.
210 * \see surf_host_model_init_LegrandVelho()
212 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho();
214 /** \ingroup SURF_models
215 * \brief Initializes the platform with the network model 'Constant'
217 * In this model, the communication time between two network cards is constant, hence no need for a routing table.
218 * This is particularly useful when simulating huge distributed algorithms where scalability is really an issue. This
219 * function is called in conjunction with surf_host_model_init_compound.
221 * \see surf_host_model_init_compound()
223 XBT_PUBLIC(void) surf_network_model_init_Constant();
225 /** \ingroup SURF_models
226 * \brief Initializes the platform with the network model CM02
228 * You sould call this function by yourself only if you plan using surf_host_model_init_compound.
229 * See comments in the code for more information.
231 XBT_PUBLIC(void) surf_network_model_init_CM02();
233 /** \ingroup SURF_models
234 * \brief Initializes the platform with the network model NS3
236 * This function is called by surf_host_model_init_NS3 or by yourself only if you plan using
237 * surf_host_model_init_compound
239 * \see surf_host_model_init_NS3()
241 XBT_PUBLIC(void) surf_network_model_init_NS3();
243 /** \ingroup SURF_models
244 * \brief Initializes the platform with the network model Reno
246 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
249 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
250 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
252 * Call this function only if you plan using surf_host_model_init_compound.
254 XBT_PUBLIC(void) surf_network_model_init_Reno();
256 /** \ingroup SURF_models
257 * \brief Initializes the platform with the network model Reno2
259 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
262 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
263 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
265 * Call this function only if you plan using surf_host_model_init_compound.
267 XBT_PUBLIC(void) surf_network_model_init_Reno2();
269 /** \ingroup SURF_models
270 * \brief Initializes the platform with the network model Vegas
272 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent to the proportional fairness.
275 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
276 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
278 * Call this function only if you plan using surf_host_model_init_compound.
280 XBT_PUBLIC(void) surf_network_model_init_Vegas();
282 /** \ingroup SURF_models
283 * \brief The list of all available network model models
285 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_network_model_description[];
287 /** \ingroup SURF_models
288 * \brief The storage model
290 XBT_PUBLIC(void) surf_storage_model_init_default();
292 /** \ingroup SURF_models
293 * \brief The list of all available storage modes.
294 * This storage mode can be set using --cfg=storage/model:...
296 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
298 XBT_PUBLIC_DATA(surf_storage_model_t) surf_storage_model;
300 /** \ingroup SURF_models
301 * \brief The host model
303 * Note that when you create an API on top of SURF, the host model should be the only one you use
304 * because depending on the platform model, the network model and the CPU model may not exist.
306 XBT_PUBLIC_DATA(surf_host_model_t) surf_host_model;
308 /** \ingroup SURF_models
309 * \brief Initializes the platform with a compound host model
311 * This function should be called after a cpu_model and a network_model have been set up.
313 XBT_PUBLIC(void) surf_host_model_init_compound();
315 /** \ingroup SURF_models
316 * \brief Initializes the platform with the current best network and cpu models at hand
318 * This platform model separates the host model and the network model.
319 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
320 * traffic support) and the CPU model with the model Cas01.
321 * Such model is subject to modification with warning in the ChangeLog so monitor it!
323 XBT_PUBLIC(void) surf_host_model_init_current_default();
325 /** \ingroup SURF_models
326 * \brief Initializes the platform with the model L07
328 * With this model, only parallel tasks can be used. Resource sharing is done by identifying bottlenecks and giving an
329 * equal share of the model to each action.
331 XBT_PUBLIC(void) surf_host_model_init_ptask_L07();
333 /** \ingroup SURF_models
334 * \brief The list of all available host model models
336 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_host_model_description[];
338 /** \ingroup SURF_models
339 * \brief Initializes the platform with the current best network and cpu models at hand
341 * This platform model seperates the host model and the network model.
342 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
343 * traffic support) and the CPU model with the model Cas01.
344 * Such model is subject to modification with warning in the ChangeLog so monitor it!
346 XBT_PUBLIC(void) surf_vm_model_init_HL13();
348 /*** SURF Globals **************************/
350 /** \ingroup SURF_simulation
351 * \brief Initialize SURF
352 * \param argc argument number
353 * \param argv arguments
355 * This function has to be called to initialize the common structures. Then you will have to create the environment by
356 * calling e.g. surf_host_model_init_CM02()
358 * \see surf_host_model_init_CM02(), surf_host_model_init_compound(), surf_exit()
360 XBT_PUBLIC(void) surf_init(int* argc, char** argv); /* initialize common structures */
362 /** \ingroup SURF_simulation
363 * \brief Finish simulation initialization
365 * This function must be called before the first call to surf_solve()
367 XBT_PUBLIC(void) surf_presolve();
369 /** \ingroup SURF_simulation
370 * \brief Performs a part of the simulation
371 * \param max_date Maximum date to update the simulation to, or -1
372 * \return the elapsed time, or -1.0 if no event could be executed
374 * This function execute all possible events, update the action states and returns the time elapsed.
375 * When you call execute or communicate on a model, the corresponding actions are not executed immediately but only
376 * when you call surf_solve.
377 * Note that the returned elapsed time can be zero.
379 XBT_PUBLIC(double) surf_solve(double max_date);
381 /** \ingroup SURF_simulation
382 * \brief Return the current time
384 * Return the current time in millisecond.
386 XBT_PUBLIC(double) surf_get_clock();
388 /** \ingroup SURF_simulation
395 XBT_PUBLIC(void) surf_exit();
397 /* surf parse file related (public because called from a test suite) */
398 XBT_PUBLIC(void) parse_platform_file(const char* file);
400 /********** Tracing **********/
401 /* from surf_instr.c */
402 void TRACE_surf_action(surf_action_t surf_action, const char* category);
404 /* instr_routing.c */
405 void instr_routing_define_callbacks();
406 int instr_platform_traced();
407 xbt_graph_t instr_routing_platform_graph();
408 void instr_routing_platform_graph_export_graphviz(xbt_graph_t g, const char* filename);