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/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
28 class NetworkCm02Link;
33 /** @ingroup SURF_c_bindings
34 * \brief Model datatype
36 * Generic data structure for a model. The hosts,
37 * the CPUs and the network links are examples of models.
39 typedef simgrid::surf::Model* surf_model_t;
40 typedef simgrid::surf::CpuModel* surf_cpu_model_t;
41 typedef simgrid::surf::HostModel* surf_host_model_t;
42 typedef simgrid::surf::NetworkModel* surf_network_model_t;
43 typedef simgrid::surf::StorageModel* surf_storage_model_t;
44 /** @ingroup SURF_c_bindings
45 * \brief Action structure
47 * Never create s_surf_action_t by yourself ! The actions are created
48 * on the fly when you call execute or communicate on a model.
50 * \see e_surf_action_state_t
52 typedef simgrid::surf::Action* surf_action_t;
55 /* Actions and models are highly connected structures... */
57 /* user-visible parameters */
58 extern XBT_PRIVATE double sg_tcp_gamma;
59 extern XBT_PRIVATE double sg_latency_factor;
60 extern XBT_PRIVATE double sg_bandwidth_factor;
61 extern XBT_PRIVATE double sg_weight_S_parameter;
62 extern XBT_PRIVATE int sg_network_crosstraffic;
64 /** \brief Resource model description
66 struct surf_model_description {
68 const char* description;
69 void_f_void_t model_init_preparse;
71 typedef struct surf_model_description s_surf_model_description_t;
73 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t* table, std::string name);
74 XBT_PUBLIC(void) model_help(const char* category, s_surf_model_description_t* table);
76 /***************************/
77 /* Generic model object */
78 /***************************/
80 /** @{ @ingroup SURF_c_bindings */
83 * @brief Pop an action from the done actions set
85 * @param model The model from which the action is extracted
86 * @return An action in done state
88 XBT_PUBLIC(surf_action_t) surf_model_extract_done_action_set(surf_model_t model);
91 * @brief Pop an action from the failed actions set
93 * @param model The model from which the action is extracted
94 * @return An action in failed state
96 XBT_PUBLIC(surf_action_t) surf_model_extract_failed_action_set(surf_model_t model);
99 * @brief Get the size of the running action set of a model
101 * @param model The model
102 * @return The size of the running action set
104 XBT_PUBLIC(int) surf_model_running_action_set_size(surf_model_t model);
107 * @brief [brief description]
108 * @details [long description]
110 * @param action The surf cpu action
111 * @param bound [description]
113 XBT_PUBLIC(void) surf_cpu_action_set_bound(surf_action_t action, double bound);
116 * @brief [brief description]
117 * @details [long description]
119 * @param action The surf network action
121 XBT_PUBLIC(double) surf_network_action_get_latency_limited(surf_action_t action);
125 /**************************************/
126 /* Implementations of model object */
127 /**************************************/
129 /** \ingroup SURF_models
130 * \brief The CPU model object for the physical machine layer
132 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_pm;
134 /** \ingroup SURF_models
135 * \brief The CPU model object for the virtual machine layer
137 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_vm;
139 /** \ingroup SURF_models
140 * \brief Initializes the CPU model with the model Cas01
142 * By default, this model uses the lazy optimization mechanism that relies on partial invalidation in LMM and a heap
143 * for lazy action update.
144 * You can change this behavior by setting the cpu/optim configuration variable to a different value.
146 * You shouldn't have to call it by yourself.
148 XBT_PUBLIC(void) surf_cpu_model_init_Cas01();
150 /** \ingroup SURF_models
151 * \brief Initializes the CPU model with trace integration [Deprecated]
153 * You shouldn't have to call it by yourself.
155 XBT_PUBLIC(void) surf_cpu_model_init_ti();
157 /** \ingroup SURF_models
158 * \brief The list of all available optimization modes (both for cpu and networks).
159 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
161 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
163 /** \ingroup SURF_plugins
164 * \brief The list of all available surf plugins
166 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_plugin_description[];
168 /** \ingroup SURF_models
169 * \brief The list of all available cpu model models
171 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
173 /** \ingroup SURF_models
174 * \brief The network model
176 * When creating a new API on top on SURF, you shouldn't use the network model unless you know what you are doing.
177 * Only the host model should be accessed because depending on the platform model, the network model can be NULL.
179 XBT_PUBLIC_DATA(surf_network_model_t) surf_network_model;
181 /** \ingroup SURF_models
182 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
184 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud based on the model 'LV08' and
185 * different correction factors depending on the communication size (< 1KiB, < 64KiB, >= 64KiB).
186 * See comments in the code for more information.
188 * \see surf_host_model_init_SMPI()
190 XBT_PUBLIC(void) surf_network_model_init_SMPI();
192 /** \ingroup SURF_models
193 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
195 * This model impelments a variant of the contention model on Infinband networks based on
196 * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
198 * \see surf_host_model_init_IB()
200 XBT_PUBLIC(void) surf_network_model_init_IB();
202 /** \ingroup SURF_models
203 * \brief Initializes the platform with the network model 'LegrandVelho'
205 * This model is proposed by Arnaud Legrand and Pedro Velho based on the results obtained with the GTNets simulator for
206 * onelink and dogbone sharing scenarios. See comments in the code for more information.
208 * \see surf_host_model_init_LegrandVelho()
210 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho();
212 /** \ingroup SURF_models
213 * \brief Initializes the platform with the network model 'Constant'
215 * In this model, the communication time between two network cards is constant, hence no need for a routing table.
216 * This is particularly useful when simulating huge distributed algorithms where scalability is really an issue. This
217 * function is called in conjunction with surf_host_model_init_compound.
219 * \see surf_host_model_init_compound()
221 XBT_PUBLIC(void) surf_network_model_init_Constant();
223 /** \ingroup SURF_models
224 * \brief Initializes the platform with the network model CM02
226 * You sould call this function by yourself only if you plan using surf_host_model_init_compound.
227 * See comments in the code for more information.
229 XBT_PUBLIC(void) surf_network_model_init_CM02();
231 /** \ingroup SURF_models
232 * \brief Initializes the platform with the network model NS3
234 * This function is called by surf_host_model_init_NS3 or by yourself only if you plan using
235 * surf_host_model_init_compound
237 * \see surf_host_model_init_NS3()
239 XBT_PUBLIC(void) surf_network_model_init_NS3();
241 /** \ingroup SURF_models
242 * \brief Initializes the platform with the network model Reno
244 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
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_Reno();
254 /** \ingroup SURF_models
255 * \brief Initializes the platform with the network model Reno2
257 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
260 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
261 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
263 * Call this function only if you plan using surf_host_model_init_compound.
265 XBT_PUBLIC(void) surf_network_model_init_Reno2();
267 /** \ingroup SURF_models
268 * \brief Initializes the platform with the network model Vegas
270 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent to the proportional fairness.
273 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
274 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
276 * Call this function only if you plan using surf_host_model_init_compound.
278 XBT_PUBLIC(void) surf_network_model_init_Vegas();
280 /** \ingroup SURF_models
281 * \brief The list of all available network model models
283 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_network_model_description[];
285 /** \ingroup SURF_models
286 * \brief The storage model
288 XBT_PUBLIC(void) surf_storage_model_init_default();
290 /** \ingroup SURF_models
291 * \brief The list of all available storage modes.
292 * This storage mode can be set using --cfg=storage/model:...
294 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
296 XBT_PUBLIC_DATA(surf_storage_model_t) surf_storage_model;
298 /** \ingroup SURF_models
299 * \brief The host model
301 * Note that when you create an API on top of SURF, the host model should be the only one you use
302 * because depending on the platform model, the network model and the CPU model may not exist.
304 XBT_PUBLIC_DATA(surf_host_model_t) surf_host_model;
306 /** \ingroup SURF_models
307 * \brief Initializes the platform with a compound host model
309 * This function should be called after a cpu_model and a network_model have been set up.
311 XBT_PUBLIC(void) surf_host_model_init_compound();
313 /** \ingroup SURF_models
314 * \brief Initializes the platform with the current best network and cpu models at hand
316 * This platform model separates the host model and the network model.
317 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
318 * traffic support) and the CPU model with the model Cas01.
319 * Such model is subject to modification with warning in the ChangeLog so monitor it!
321 XBT_PUBLIC(void) surf_host_model_init_current_default();
323 /** \ingroup SURF_models
324 * \brief Initializes the platform with the model L07
326 * With this model, only parallel tasks can be used. Resource sharing is done by identifying bottlenecks and giving an
327 * equal share of the model to each action.
329 XBT_PUBLIC(void) surf_host_model_init_ptask_L07();
331 /** \ingroup SURF_models
332 * \brief The list of all available host model models
334 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_host_model_description[];
336 /** \ingroup SURF_models
337 * \brief Initializes the platform with the current best network and cpu models at hand
339 * This platform model seperates the host model and the network model.
340 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
341 * traffic support) and the CPU model with the model Cas01.
342 * Such model is subject to modification with warning in the ChangeLog so monitor it!
344 XBT_PUBLIC(void) surf_vm_model_init_HL13();
346 /*** SURF Globals **************************/
348 /** \ingroup SURF_simulation
349 * \brief Initialize SURF
350 * \param argc argument number
351 * \param argv arguments
353 * This function has to be called to initialize the common structures. Then you will have to create the environment by
354 * calling e.g. surf_host_model_init_CM02()
356 * \see surf_host_model_init_CM02(), surf_host_model_init_compound(), surf_exit()
358 XBT_PUBLIC(void) surf_init(int* argc, char** argv); /* initialize common structures */
360 /** \ingroup SURF_simulation
361 * \brief Finish simulation initialization
363 * This function must be called before the first call to surf_solve()
365 XBT_PUBLIC(void) surf_presolve();
367 /** \ingroup SURF_simulation
368 * \brief Performs a part of the simulation
369 * \param max_date Maximum date to update the simulation to, or -1
370 * \return the elapsed time, or -1.0 if no event could be executed
372 * This function execute all possible events, update the action states and returns the time elapsed.
373 * When you call execute or communicate on a model, the corresponding actions are not executed immediately but only
374 * when you call surf_solve.
375 * Note that the returned elapsed time can be zero.
377 XBT_PUBLIC(double) surf_solve(double max_date);
379 /** \ingroup SURF_simulation
380 * \brief Return the current time
382 * Return the current time in millisecond.
384 XBT_PUBLIC(double) surf_get_clock();
386 /** \ingroup SURF_simulation
393 XBT_PUBLIC(void) surf_exit();
395 /* surf parse file related (public because called from a test suite) */
396 XBT_PUBLIC(void) parse_platform_file(const char* file);
398 /********** Tracing **********/
399 /* from surf_instr.c */
400 void TRACE_surf_action(surf_action_t surf_action, const char* category);
402 /* instr_routing.c */
403 void instr_routing_define_callbacks();
404 int instr_platform_traced();
405 xbt_graph_t instr_routing_platform_graph();
406 void instr_routing_platform_graph_export_graphviz(xbt_graph_t g, const char* filename);