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 "xbt/graph.h"
12 /** \brief Resource model description
14 struct surf_model_description {
16 const char* description;
17 void_f_void_t model_init_preparse;
19 typedef struct surf_model_description s_surf_model_description_t;
21 XBT_PUBLIC int find_model_description(s_surf_model_description_t* table, std::string name);
22 XBT_PUBLIC void model_help(const char* category, s_surf_model_description_t* table);
24 /***************************/
25 /* Generic model object */
26 /***************************/
28 /** @{ @ingroup SURF_c_bindings */
31 * @brief Pop an action from the done actions set
33 * @param model The model from which the action is extracted
34 * @return An action in done state
36 XBT_PUBLIC simgrid::kernel::resource::Action*
37 surf_model_extract_done_action_set(simgrid::kernel::resource::Model* model);
40 * @brief Pop an action from the failed actions set
42 * @param model The model from which the action is extracted
43 * @return An action in failed state
45 XBT_PUBLIC simgrid::kernel::resource::Action*
46 surf_model_extract_failed_action_set(simgrid::kernel::resource::Model* model);
49 * @brief Get the size of the running action set of a model
51 * @param model The model
52 * @return The size of the running action set
54 XBT_PUBLIC int surf_model_running_action_set_size(simgrid::kernel::resource::Model* model);
57 * @brief [brief description]
58 * @details [long description]
60 * @param action The surf cpu action
61 * @param bound [description]
63 XBT_PUBLIC void surf_cpu_action_set_bound(simgrid::kernel::resource::Action* action, double bound);
67 /**************************************/
68 /* Implementations of model object */
69 /**************************************/
71 /** \ingroup SURF_models
72 * \brief The CPU model object for the physical machine layer
74 XBT_PUBLIC_DATA simgrid::surf::CpuModel* surf_cpu_model_pm;
76 /** \ingroup SURF_models
77 * \brief The CPU model object for the virtual machine layer
79 XBT_PUBLIC_DATA simgrid::surf::CpuModel* surf_cpu_model_vm;
81 /** \ingroup SURF_models
82 * \brief Initializes the CPU model with the model Cas01
84 * By default, this model uses the lazy optimization mechanism that relies on partial invalidation in LMM and a heap
85 * for lazy action update.
86 * You can change this behavior by setting the cpu/optim configuration variable to a different value.
88 * You shouldn't have to call it by yourself.
90 XBT_PUBLIC void surf_cpu_model_init_Cas01();
92 /** \ingroup SURF_models
93 * \brief The list of all available optimization modes (both for cpu and networks).
94 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
96 XBT_PUBLIC_DATA s_surf_model_description_t surf_optimization_mode_description[];
98 /** \ingroup SURF_plugins
99 * \brief The list of all available surf plugins
101 XBT_PUBLIC_DATA s_surf_model_description_t surf_plugin_description[];
103 /** \ingroup SURF_models
104 * \brief The list of all available cpu model models
106 XBT_PUBLIC_DATA s_surf_model_description_t surf_cpu_model_description[];
108 /** \ingroup SURF_models
109 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
111 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud based on the model 'LV08' and
112 * different correction factors depending on the communication size (< 1KiB, < 64KiB, >= 64KiB).
113 * See comments in the code for more information.
115 * \see surf_host_model_init_SMPI()
117 XBT_PUBLIC void surf_network_model_init_SMPI();
119 /** \ingroup SURF_models
120 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
122 * This model impelments a variant of the contention model on Infinband networks based on
123 * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
125 * \see surf_host_model_init_IB()
127 XBT_PUBLIC void surf_network_model_init_IB();
129 /** \ingroup SURF_models
130 * \brief Initializes the platform with the network model 'LegrandVelho'
132 * This model is proposed by Arnaud Legrand and Pedro Velho based on the results obtained with the GTNets simulator for
133 * onelink and dogbone sharing scenarios. See comments in the code for more information.
135 * \see surf_host_model_init_LegrandVelho()
137 XBT_PUBLIC void surf_network_model_init_LegrandVelho();
139 /** \ingroup SURF_models
140 * \brief Initializes the platform with the network model 'Constant'
142 * In this model, the communication time between two network cards is constant, hence no need for a routing table.
143 * This is particularly useful when simulating huge distributed algorithms where scalability is really an issue. This
144 * function is called in conjunction with surf_host_model_init_compound.
146 * \see surf_host_model_init_compound()
148 XBT_PUBLIC void surf_network_model_init_Constant();
150 /** \ingroup SURF_models
151 * \brief Initializes the platform with the network model CM02
153 * You sould call this function by yourself only if you plan using surf_host_model_init_compound.
154 * See comments in the code for more information.
156 XBT_PUBLIC void surf_network_model_init_CM02();
158 /** \ingroup SURF_models
159 * \brief Initializes the platform with the network model NS3
161 * This function is called by surf_host_model_init_NS3 or by yourself only if you plan using
162 * surf_host_model_init_compound
164 * \see surf_host_model_init_NS3()
166 XBT_PUBLIC void surf_network_model_init_NS3();
168 /** \ingroup SURF_models
169 * \brief Initializes the platform with the network model Reno
171 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
174 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
175 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
177 * Call this function only if you plan using surf_host_model_init_compound.
179 XBT_PUBLIC void surf_network_model_init_Reno();
181 /** \ingroup SURF_models
182 * \brief Initializes the platform with the network model Reno2
184 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
187 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
188 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
190 * Call this function only if you plan using surf_host_model_init_compound.
192 XBT_PUBLIC void surf_network_model_init_Reno2();
194 /** \ingroup SURF_models
195 * \brief Initializes the platform with the network model Vegas
197 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent to the proportional fairness.
200 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
201 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
203 * Call this function only if you plan using surf_host_model_init_compound.
205 XBT_PUBLIC void surf_network_model_init_Vegas();
207 /** \ingroup SURF_models
208 * \brief The list of all available network model models
210 XBT_PUBLIC_DATA s_surf_model_description_t surf_network_model_description[];
212 /** \ingroup SURF_models
213 * \brief The storage model
215 XBT_PUBLIC void surf_storage_model_init_default();
217 /** \ingroup SURF_models
218 * \brief The list of all available storage modes.
219 * This storage mode can be set using --cfg=storage/model:...
221 XBT_PUBLIC_DATA s_surf_model_description_t surf_storage_model_description[];
223 XBT_PUBLIC_DATA simgrid::surf::StorageModel* surf_storage_model;
225 /** \ingroup SURF_models
226 * \brief The host model
228 * Note that when you create an API on top of SURF, the host model should be the only one you use
229 * because depending on the platform model, the network model and the CPU model may not exist.
231 XBT_PUBLIC_DATA simgrid::surf::HostModel* surf_host_model;
233 /** \ingroup SURF_models
234 * \brief Initializes the platform with a compound host model
236 * This function should be called after a cpu_model and a network_model have been set up.
238 XBT_PUBLIC void surf_host_model_init_compound();
240 /** \ingroup SURF_models
241 * \brief Initializes the platform with the current best network and cpu models at hand
243 * This platform model separates the host model and the network model.
244 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
245 * traffic support) and the CPU model with the model Cas01.
246 * Such model is subject to modification with warning in the ChangeLog so monitor it!
248 XBT_PUBLIC void surf_host_model_init_current_default();
250 /** \ingroup SURF_models
251 * \brief Initializes the platform with the model L07
253 * With this model, only parallel tasks can be used. Resource sharing is done by identifying bottlenecks and giving an
254 * equal share of the model to each action.
256 XBT_PUBLIC void surf_host_model_init_ptask_L07();
258 /** \ingroup SURF_models
259 * \brief The list of all available host model models
261 XBT_PUBLIC_DATA s_surf_model_description_t surf_host_model_description[];
263 /** \ingroup SURF_models
264 * \brief Initializes the platform with the current best network and cpu models at hand
266 * This platform model seperates the host model and the network model.
267 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
268 * traffic support) and the CPU model with the model Cas01.
269 * Such model is subject to modification with warning in the ChangeLog so monitor it!
271 XBT_PUBLIC void surf_vm_model_init_HL13();
273 /*** SURF Globals **************************/
275 /** \ingroup SURF_simulation
276 * \brief Initialize SURF
277 * \param argc argument number
278 * \param argv arguments
280 * This function has to be called to initialize the common structures. Then you will have to create the environment by
281 * calling e.g. surf_host_model_init_CM02()
283 * \see surf_host_model_init_CM02(), surf_host_model_init_compound(), surf_exit()
285 XBT_PUBLIC void surf_init(int* argc, char** argv); /* initialize common structures */
287 /** \ingroup SURF_simulation
288 * \brief Finish simulation initialization
290 * This function must be called before the first call to surf_solve()
292 XBT_PUBLIC void surf_presolve();
294 /** \ingroup SURF_simulation
295 * \brief Performs a part of the simulation
296 * \param max_date Maximum date to update the simulation to, or -1
297 * \return the elapsed time, or -1.0 if no event could be executed
299 * This function execute all possible events, update the action states and returns the time elapsed.
300 * When you call execute or communicate on a model, the corresponding actions are not executed immediately but only
301 * when you call surf_solve.
302 * Note that the returned elapsed time can be zero.
304 XBT_PUBLIC double surf_solve(double max_date);
306 /** \ingroup SURF_simulation
307 * \brief Return the current time
309 * Return the current time in millisecond.
311 XBT_PUBLIC double surf_get_clock();
313 /** \ingroup SURF_simulation
320 XBT_PUBLIC void surf_exit();
322 /* surf parse file related (public because called from a test suite) */
323 XBT_PUBLIC void parse_platform_file(const char* file);
325 /********** Tracing **********/
327 /* instr_routing.c */
328 xbt_graph_t instr_routing_platform_graph();
329 void instr_routing_platform_graph_export_graphviz(xbt_graph_t g, const char* filename);