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. */
10 #include "xbt/dynar.h"
12 #include "xbt/graph.h"
14 #include "xbt/config.h"
15 #include "src/internal_config.h"
16 #include "surf/datatypes.h"
17 #include "simgrid/datatypes.h"
18 #include "simgrid/forward.h"
30 class NetworkCm02Link;
35 typedef simgrid::surf::Model surf_Model;
36 typedef simgrid::surf::CpuModel surf_CpuModel;
37 typedef simgrid::surf::Cpu surf_Cpu;
38 typedef simgrid::surf::HostModel surf_HostModel;
39 typedef simgrid::surf::NetworkModel surf_NetworkModel;
40 typedef simgrid::surf::StorageModel surf_StorageModel;
41 typedef simgrid::surf::Resource surf_Resource;
42 typedef simgrid::surf::Action surf_Action;
46 typedef struct surf_Model surf_Model;
47 typedef struct surf_CpuModel surf_CpuModel;
48 typedef struct surf_Cpu surf_Cpu;
49 typedef struct surf_HostModel surf_HostModel;
50 typedef struct surf_NetworkModel surf_NetworkModel;
51 typedef struct surf_StorageModel surf_StorageModel;
52 typedef struct surf_Resource surf_Resource;
53 typedef struct surf_Host surf_Host;
54 typedef struct surf_Action surf_Action;
59 /* Actions and models are highly connected structures... */
61 /* user-visible parameters */
62 extern XBT_PRIVATE double sg_tcp_gamma;
63 extern XBT_PRIVATE double sg_latency_factor;
64 extern XBT_PRIVATE double sg_bandwidth_factor;
65 extern XBT_PRIVATE double sg_weight_S_parameter;
66 extern XBT_PRIVATE int sg_network_crosstraffic;
68 /** @ingroup SURF_c_bindings
69 * \brief Model datatype
71 * Generic data structure for a model. The hosts,
72 * the CPUs and the network links are examples of models.
74 typedef surf_Model *surf_model_t;
75 typedef surf_CpuModel *surf_cpu_model_t;
76 typedef surf_HostModel *surf_host_model_t;
77 typedef surf_NetworkModel *surf_network_model_t;
78 typedef surf_StorageModel *surf_storage_model_t;
80 /** @ingroup SURF_c_bindings
81 * \brief Action structure
83 * Never create s_surf_action_t by yourself ! The actions are created
84 * on the fly when you call execute or communicate on a model.
86 * \see e_surf_action_state_t
88 typedef surf_Action *surf_action_t;
91 /** \brief Resource model description
93 struct surf_model_description {
95 const char *description;
96 void_f_void_t model_init_preparse;
98 typedef struct surf_model_description s_surf_model_description_t;
99 typedef struct surf_model_description* surf_model_description_t;
101 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table, const char *name);
102 XBT_PUBLIC(void) model_help(const char *category, s_surf_model_description_t * table);
104 /***************************/
105 /* Generic model object */
106 /***************************/
108 /** @{ @ingroup SURF_c_bindings */
111 * @brief Pop an action from the done actions set
113 * @param model The model from which the action is extracted
114 * @return An action in done state
116 XBT_PUBLIC(surf_action_t) surf_model_extract_done_action_set(surf_model_t model);
119 * @brief Pop an action from the failed actions set
121 * @param model The model from which the action is extracted
122 * @return An action in failed state
124 XBT_PUBLIC(surf_action_t) surf_model_extract_failed_action_set(surf_model_t model);
127 * @brief Get the size of the running action set of a model
129 * @param model The model
130 * @return The size of the running action set
132 XBT_PUBLIC(int) surf_model_running_action_set_size(surf_model_t model);
135 * @brief [brief description]
136 * @details [long description]
138 * @param action The surf cpu action
139 * @param bound [description]
141 XBT_PUBLIC(void) surf_cpu_action_set_bound(surf_action_t action, double bound);
144 * @brief [brief description]
145 * @details [long description]
147 * @param action The surf network action
149 XBT_PUBLIC(double) surf_network_action_get_latency_limited(surf_action_t action);
153 /**************************************/
154 /* Implementations of model object */
155 /**************************************/
157 /** \ingroup SURF_models
158 * \brief The CPU model object for the physical machine layer
160 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_pm;
162 /** \ingroup SURF_models
163 * \brief The CPU model object for the virtual machine layer
165 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_vm;
168 /** \ingroup SURF_models
169 * \brief Initializes the CPU model with the model Cas01
171 * By default, this model uses the lazy optimization mechanism that relies on partial invalidation in LMM and a heap
172 * for lazy action update.
173 * You can change this behavior by setting the cpu/optim configuration variable to a different value.
175 * You shouldn't have to call it by yourself.
177 XBT_PUBLIC(void) surf_cpu_model_init_Cas01();
179 /** \ingroup SURF_models
180 * \brief Initializes the CPU model with trace integration [Deprecated]
182 * You shouldn't have to call it by yourself.
184 XBT_PUBLIC(void) surf_cpu_model_init_ti();
186 /** \ingroup SURF_models
187 * \brief The list of all available optimization modes (both for cpu and networks).
188 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
190 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
192 /** \ingroup SURF_plugins
193 * \brief The list of all available surf plugins
195 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_plugin_description[];
197 /** \ingroup SURF_models
198 * \brief The list of all available cpu model models
200 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
202 /** \ingroup SURF_models
203 * \brief The network model
205 * When creating a new API on top on SURF, you shouldn't use the network model unless you know what you are doing.
206 * Only the host model should be accessed because depending on the platform model, the network model can be NULL.
208 XBT_PUBLIC_DATA(surf_network_model_t) surf_network_model;
210 /** \ingroup SURF_models
211 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
213 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud based on the model 'LV08' and
214 * different correction factors depending on the communication size (< 1KiB, < 64KiB, >= 64KiB).
215 * See comments in the code for more information.
217 * \see surf_host_model_init_SMPI()
219 XBT_PUBLIC(void) surf_network_model_init_SMPI();
221 /** \ingroup SURF_models
222 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
224 * This model impelments a variant of the contention model on Infinband networks based on
225 * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
227 * \see surf_host_model_init_IB()
229 XBT_PUBLIC(void) surf_network_model_init_IB();
231 /** \ingroup SURF_models
232 * \brief Initializes the platform with the network model 'LegrandVelho'
234 * This model is proposed by Arnaud Legrand and Pedro Velho based on the results obtained with the GTNets simulator for
235 * onelink and dogbone sharing scenarios. See comments in the code for more information.
237 * \see surf_host_model_init_LegrandVelho()
239 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho();
241 /** \ingroup SURF_models
242 * \brief Initializes the platform with the network model 'Constant'
244 * In this model, the communication time between two network cards is constant, hence no need for a routing table.
245 * This is particularly useful when simulating huge distributed algorithms where scalability is really an issue. This
246 * function is called in conjunction with surf_host_model_init_compound.
248 * \see surf_host_model_init_compound()
250 XBT_PUBLIC(void) surf_network_model_init_Constant();
252 /** \ingroup SURF_models
253 * \brief Initializes the platform with the network model CM02
255 * You sould call this function by yourself only if you plan using surf_host_model_init_compound.
256 * See comments in the code for more information.
258 XBT_PUBLIC(void) surf_network_model_init_CM02();
260 /** \ingroup SURF_models
261 * \brief Initializes the platform with the network model NS3
263 * This function is called by surf_host_model_init_NS3 or by yourself only if you plan using
264 * surf_host_model_init_compound
266 * \see surf_host_model_init_NS3()
268 XBT_PUBLIC(void) surf_network_model_init_NS3();
270 /** \ingroup SURF_models
271 * \brief Initializes the platform with the network model Reno
273 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
276 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
277 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
279 * Call this function only if you plan using surf_host_model_init_compound.
281 XBT_PUBLIC(void) surf_network_model_init_Reno();
283 /** \ingroup SURF_models
284 * \brief Initializes the platform with the network model Reno2
286 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
289 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
290 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
292 * Call this function only if you plan using surf_host_model_init_compound.
294 XBT_PUBLIC(void) surf_network_model_init_Reno2();
296 /** \ingroup SURF_models
297 * \brief Initializes the platform with the network model Vegas
299 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent to the proportional fairness.
302 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
303 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
305 * Call this function only if you plan using surf_host_model_init_compound.
307 XBT_PUBLIC(void) surf_network_model_init_Vegas();
309 /** \ingroup SURF_models
310 * \brief The list of all available network model models
312 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_network_model_description[];
314 /** \ingroup SURF_models
315 * \brief The storage model
317 XBT_PUBLIC(void) surf_storage_model_init_default();
319 /** \ingroup SURF_models
320 * \brief The list of all available storage modes.
321 * This storage mode can be set using --cfg=storage/model:...
323 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
325 XBT_PUBLIC_DATA(surf_storage_model_t) surf_storage_model;
327 /** \ingroup SURF_models
328 * \brief The host model
330 * Note that when you create an API on top of SURF, the host model should be the only one you use
331 * because depending on the platform model, the network model and the CPU model may not exist.
333 XBT_PUBLIC_DATA(surf_host_model_t) surf_host_model;
335 /** \ingroup SURF_models
336 * \brief Initializes the platform with a compound host model
338 * This function should be called after a cpu_model and a network_model have been set up.
340 XBT_PUBLIC(void) surf_host_model_init_compound();
342 /** \ingroup SURF_models
343 * \brief Initializes the platform with the current best network and cpu models at hand
345 * This platform model separates the host model and the network model.
346 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
347 * traffic support) and the CPU model with the model Cas01.
348 * Such model is subject to modification with warning in the ChangeLog so monitor it!
350 XBT_PUBLIC(void) surf_host_model_init_current_default();
352 /** \ingroup SURF_models
353 * \brief Initializes the platform with the model L07
355 * With this model, only parallel tasks can be used. Resource sharing is done by identifying bottlenecks and giving an
356 * equal share of the model to each action.
358 XBT_PUBLIC(void) surf_host_model_init_ptask_L07();
360 /** \ingroup SURF_models
361 * \brief The list of all available host model models
363 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_host_model_description[];
365 /** \ingroup SURF_models
366 * \brief Initializes the platform with the current best network and cpu models at hand
368 * This platform model seperates the host model and the network model.
369 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
370 * traffic support) and the CPU model with the model Cas01.
371 * Such model is subject to modification with warning in the ChangeLog so monitor it!
373 XBT_PUBLIC(void) surf_vm_model_init_HL13();
375 /*** SURF Globals **************************/
377 /** \ingroup SURF_simulation
378 * \brief Initialize SURF
379 * \param argc argument number
380 * \param argv arguments
382 * This function has to be called to initialize the common structures. Then you will have to create the environment by
383 * calling e.g. surf_host_model_init_CM02()
385 * \see surf_host_model_init_CM02(), surf_host_model_init_compound(), surf_exit()
387 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
389 /** \ingroup SURF_simulation
390 * \brief Finish simulation initialization
392 * This function must be called before the first call to surf_solve()
394 XBT_PUBLIC(void) surf_presolve();
396 /** \ingroup SURF_simulation
397 * \brief Performs a part of the simulation
398 * \param max_date Maximum date to update the simulation to, or -1
399 * \return the elapsed time, or -1.0 if no event could be executed
401 * This function execute all possible events, update the action states and returns the time elapsed.
402 * When you call execute or communicate on a model, the corresponding actions are not executed immediately but only
403 * when you call surf_solve.
404 * Note that the returned elapsed time can be zero.
406 XBT_PUBLIC(double) surf_solve(double max_date);
408 /** \ingroup SURF_simulation
409 * \brief Return the current time
411 * Return the current time in millisecond.
413 XBT_PUBLIC(double) surf_get_clock();
415 /** \ingroup SURF_simulation
422 XBT_PUBLIC(void) surf_exit();
424 /* surf parse file related (public because called from a test suite) */
425 XBT_PUBLIC(void) parse_platform_file(const char *file);
428 * Returns the initial path. On Windows the initial path is the current directory for the current process in the other
429 * case the function returns "./" that represents the current directory on Unix/Linux platforms.
431 const char *__surf_get_initial_path();
433 /********** Tracing **********/
434 /* from surf_instr.c */
435 void TRACE_surf_action(surf_action_t surf_action, const char *category);
437 /* instr_routing.c */
438 void instr_routing_define_callbacks ();
439 void instr_new_variable_type (const char *new_typename, const char *color);
440 void instr_new_user_variable_type (const char *father_type, const char *new_typename, const char *color);
441 void instr_new_user_state_type (const char *father_type, const char *new_typename);
442 void instr_new_value_for_user_state_type (const char *_typename, const char *value, const char *color);
443 int instr_platform_traced ();
444 xbt_graph_t instr_routing_platform_graph ();
445 void instr_routing_platform_graph_export_graphviz (xbt_graph_t g, const char *filename);