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"
31 class NetworkCm02Link;
36 typedef simgrid::surf::Model surf_Model;
37 typedef simgrid::surf::CpuModel surf_CpuModel;
38 typedef simgrid::surf::Cpu surf_Cpu;
39 typedef simgrid::surf::HostModel surf_HostModel;
40 typedef simgrid::surf::NetworkModel surf_NetworkModel;
41 typedef simgrid::surf::StorageModel surf_StorageModel;
42 typedef simgrid::surf::Resource surf_Resource;
43 typedef simgrid::surf::Action surf_Action;
44 typedef simgrid::surf::FileImpl surf_File;
48 typedef struct surf_Model surf_Model;
49 typedef struct surf_CpuModel surf_CpuModel;
50 typedef struct surf_Cpu surf_Cpu;
51 typedef struct surf_HostModel surf_HostModel;
52 typedef struct surf_NetworkModel surf_NetworkModel;
53 typedef struct surf_StorageModel surf_StorageModel;
54 typedef struct surf_Resource surf_Resource;
55 typedef struct surf_Host surf_Host;
56 typedef struct surf_Action surf_Action;
57 typedef struct surf_File surf_File;
62 /* Actions and models are highly connected structures... */
64 /* user-visible parameters */
65 extern XBT_PRIVATE double sg_tcp_gamma;
66 extern XBT_PRIVATE double sg_sender_gap;
67 extern XBT_PRIVATE double sg_latency_factor;
68 extern XBT_PRIVATE double sg_bandwidth_factor;
69 extern XBT_PRIVATE double sg_weight_S_parameter;
70 extern XBT_PRIVATE int sg_network_crosstraffic;
72 /** @ingroup SURF_c_bindings
73 * \brief Model datatype
75 * Generic data structure for a model. The hosts,
76 * the CPUs and the network links are examples of models.
78 typedef surf_Model *surf_model_t;
79 typedef surf_CpuModel *surf_cpu_model_t;
80 typedef surf_HostModel *surf_host_model_t;
81 typedef surf_NetworkModel *surf_network_model_t;
82 typedef surf_StorageModel *surf_storage_model_t;
83 typedef surf_File* surf_file_t;
85 /** @ingroup SURF_c_bindings
86 * \brief Action structure
88 * Never create s_surf_action_t by yourself ! The actions are created
89 * on the fly when you call execute or communicate on a model.
91 * \see e_surf_action_state_t
93 typedef surf_Action *surf_action_t;
96 /** \brief Resource model description
98 struct surf_model_description {
100 const char *description;
101 void_f_void_t model_init_preparse;
103 typedef struct surf_model_description s_surf_model_description_t;
104 typedef struct surf_model_description* surf_model_description_t;
106 XBT_PUBLIC(int) find_model_description(s_surf_model_description_t * table, const char *name);
107 XBT_PUBLIC(void) model_help(const char *category, s_surf_model_description_t * table);
109 /***************************/
110 /* Generic model object */
111 /***************************/
113 /** @{ @ingroup SURF_c_bindings */
116 * @brief Pop an action from the done actions set
118 * @param model The model from which the action is extracted
119 * @return An action in done state
121 XBT_PUBLIC(surf_action_t) surf_model_extract_done_action_set(surf_model_t model);
124 * @brief Pop an action from the failed actions set
126 * @param model The model from which the action is extracted
127 * @return An action in failed state
129 XBT_PUBLIC(surf_action_t) surf_model_extract_failed_action_set(surf_model_t model);
132 * @brief Get the size of the running action set of a model
134 * @param model The model
135 * @return The size of the running action set
137 XBT_PUBLIC(int) surf_model_running_action_set_size(surf_model_t model);
140 * @brief [brief description]
141 * @details [long description]
143 * @param action The surf cpu action
144 * @param bound [description]
146 XBT_PUBLIC(void) surf_cpu_action_set_bound(surf_action_t action, double bound);
149 * @brief [brief description]
150 * @details [long description]
152 * @param action The surf network action
154 XBT_PUBLIC(double) surf_network_action_get_latency_limited(surf_action_t action);
158 /**************************************/
159 /* Implementations of model object */
160 /**************************************/
162 /** \ingroup SURF_models
163 * \brief The CPU model object for the physical machine layer
165 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_pm;
167 /** \ingroup SURF_models
168 * \brief The CPU model object for the virtual machine layer
170 XBT_PUBLIC_DATA(surf_cpu_model_t) surf_cpu_model_vm;
173 /** \ingroup SURF_models
174 * \brief Initializes the CPU model with the model Cas01
176 * By default, this model uses the lazy optimization mechanism that relies on partial invalidation in LMM and a heap
177 * for lazy action update.
178 * You can change this behavior by setting the cpu/optim configuration variable to a different value.
180 * You shouldn't have to call it by yourself.
182 XBT_PUBLIC(void) surf_cpu_model_init_Cas01();
184 /** \ingroup SURF_models
185 * \brief Initializes the CPU model with trace integration [Deprecated]
187 * You shouldn't have to call it by yourself.
189 XBT_PUBLIC(void) surf_cpu_model_init_ti();
191 /** \ingroup SURF_models
192 * \brief The list of all available optimization modes (both for cpu and networks).
193 * These optimization modes can be set using --cfg=cpu/optim:... and --cfg=network/optim:...
195 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_optimization_mode_description[];
197 /** \ingroup SURF_plugins
198 * \brief The list of all available surf plugins
200 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_plugin_description[];
202 /** \ingroup SURF_models
203 * \brief The list of all available cpu model models
205 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_cpu_model_description[];
207 /** \ingroup SURF_models
208 * \brief The network model
210 * When creating a new API on top on SURF, you shouldn't use the network model unless you know what you are doing.
211 * Only the host model should be accessed because depending on the platform model, the network model can be NULL.
213 XBT_PUBLIC_DATA(surf_network_model_t) surf_network_model;
215 /** \ingroup SURF_models
216 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
218 * This model is proposed by Pierre-Nicolas Clauss and Martin Quinson and Stéphane Génaud based on the model 'LV08' and
219 * different correction factors depending on the communication size (< 1KiB, < 64KiB, >= 64KiB).
220 * See comments in the code for more information.
222 * \see surf_host_model_init_SMPI()
224 XBT_PUBLIC(void) surf_network_model_init_SMPI();
226 /** \ingroup SURF_models
227 * \brief Same as network model 'LagrangeVelho', only with different correction factors.
229 * This model impelments a variant of the contention model on Infinband networks based on
230 * the works of Jérôme Vienne : http://mescal.imag.fr/membres/jean-marc.vincent/index.html/PhD/Vienne.pdf
232 * \see surf_host_model_init_IB()
234 XBT_PUBLIC(void) surf_network_model_init_IB();
236 /** \ingroup SURF_models
237 * \brief Initializes the platform with the network model 'LegrandVelho'
239 * This model is proposed by Arnaud Legrand and Pedro Velho based on the results obtained with the GTNets simulator for
240 * onelink and dogbone sharing scenarios. See comments in the code for more information.
242 * \see surf_host_model_init_LegrandVelho()
244 XBT_PUBLIC(void) surf_network_model_init_LegrandVelho();
246 /** \ingroup SURF_models
247 * \brief Initializes the platform with the network model 'Constant'
249 * In this model, the communication time between two network cards is constant, hence no need for a routing table.
250 * This is particularly useful when simulating huge distributed algorithms where scalability is really an issue. This
251 * function is called in conjunction with surf_host_model_init_compound.
253 * \see surf_host_model_init_compound()
255 XBT_PUBLIC(void) surf_network_model_init_Constant();
257 /** \ingroup SURF_models
258 * \brief Initializes the platform with the network model CM02
260 * You sould call this function by yourself only if you plan using surf_host_model_init_compound.
261 * See comments in the code for more information.
263 XBT_PUBLIC(void) surf_network_model_init_CM02();
265 /** \ingroup SURF_models
266 * \brief Initializes the platform with the network model NS3
268 * This function is called by surf_host_model_init_NS3 or by yourself only if you plan using
269 * surf_host_model_init_compound
271 * \see surf_host_model_init_NS3()
273 XBT_PUBLIC(void) surf_network_model_init_NS3();
275 /** \ingroup SURF_models
276 * \brief Initializes the platform with the network model Reno
278 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
281 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
282 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
284 * Call this function only if you plan using surf_host_model_init_compound.
286 XBT_PUBLIC(void) surf_network_model_init_Reno();
288 /** \ingroup SURF_models
289 * \brief Initializes the platform with the network model Reno2
291 * The problem is related to max( sum( arctan(C * Df * xi) ) ).
294 * [LOW01] S. H. Low. A duality model of TCP and queue management algorithms.
295 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
297 * Call this function only if you plan using surf_host_model_init_compound.
299 XBT_PUBLIC(void) surf_network_model_init_Reno2();
301 /** \ingroup SURF_models
302 * \brief Initializes the platform with the network model Vegas
304 * This problem is related to max( sum( a * Df * ln(xi) ) ) which is equivalent to the proportional fairness.
307 * [LOW03] S. H. Low. A duality model of TCP and queue management algorithms.
308 * IEEE/ACM Transaction on Networking, 11(4):525-536, 2003.
310 * Call this function only if you plan using surf_host_model_init_compound.
312 XBT_PUBLIC(void) surf_network_model_init_Vegas();
314 /** \ingroup SURF_models
315 * \brief The list of all available network model models
317 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_network_model_description[];
319 /** \ingroup SURF_models
320 * \brief The storage model
322 XBT_PUBLIC(void) surf_storage_model_init_default();
324 /** \ingroup SURF_models
325 * \brief The list of all available storage modes.
326 * This storage mode can be set using --cfg=storage/model:...
328 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_storage_model_description[];
330 XBT_PUBLIC_DATA(surf_storage_model_t) surf_storage_model;
332 /** \ingroup SURF_models
333 * \brief The host model
335 * Note that when you create an API on top of SURF, the host model should be the only one you use
336 * because depending on the platform model, the network model and the CPU model may not exist.
338 XBT_PUBLIC_DATA(surf_host_model_t) surf_host_model;
340 /** \ingroup SURF_models
341 * \brief Initializes the platform with a compound host model
343 * This function should be called after a cpu_model and a network_model have been set up.
345 XBT_PUBLIC(void) surf_host_model_init_compound();
347 /** \ingroup SURF_models
348 * \brief Initializes the platform with the current best network and cpu models at hand
350 * This platform model separates the host model and the network model.
351 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
352 * traffic support) and the CPU model with the model Cas01.
353 * Such model is subject to modification with warning in the ChangeLog so monitor it!
355 XBT_PUBLIC(void) surf_host_model_init_current_default();
357 /** \ingroup SURF_models
358 * \brief Initializes the platform with the model L07
360 * With this model, only parallel tasks can be used. Resource sharing is done by identifying bottlenecks and giving an
361 * equal share of the model to each action.
363 XBT_PUBLIC(void) surf_host_model_init_ptask_L07();
365 /** \ingroup SURF_models
366 * \brief The list of all available host model models
368 XBT_PUBLIC_DATA(s_surf_model_description_t) surf_host_model_description[];
370 /** \ingroup SURF_models
371 * \brief Initializes the platform with the current best network and cpu models at hand
373 * This platform model seperates the host model and the network model.
374 * The host model will be initialized with the model compound, the network model with the model LV08 (with cross
375 * traffic support) and the CPU model with the model Cas01.
376 * Such model is subject to modification with warning in the ChangeLog so monitor it!
378 XBT_PUBLIC(void) surf_vm_model_init_HL13();
380 /** \ingroup SURF_simulation
381 * \brief List of hosts for which one want to be notified if they ever restart.
383 XBT_PUBLIC_DATA(xbt_dict_t) watched_hosts_lib;
385 /*** SURF Globals **************************/
387 /** \ingroup SURF_simulation
388 * \brief Initialize SURF
389 * \param argc argument number
390 * \param argv arguments
392 * This function has to be called to initialize the common structures. Then you will have to create the environment by
393 * calling e.g. surf_host_model_init_CM02()
395 * \see surf_host_model_init_CM02(), surf_host_model_init_compound(), surf_exit()
397 XBT_PUBLIC(void) surf_init(int *argc, char **argv); /* initialize common structures */
399 /** \ingroup SURF_simulation
400 * \brief Finish simulation initialization
402 * This function must be called before the first call to surf_solve()
404 XBT_PUBLIC(void) surf_presolve();
406 /** \ingroup SURF_simulation
407 * \brief Performs a part of the simulation
408 * \param max_date Maximum date to update the simulation to, or -1
409 * \return the elapsed time, or -1.0 if no event could be executed
411 * This function execute all possible events, update the action states and returns the time elapsed.
412 * When you call execute or communicate on a model, the corresponding actions are not executed immediately but only
413 * when you call surf_solve.
414 * Note that the returned elapsed time can be zero.
416 XBT_PUBLIC(double) surf_solve(double max_date);
418 /** \ingroup SURF_simulation
419 * \brief Return the current time
421 * Return the current time in millisecond.
423 XBT_PUBLIC(double) surf_get_clock();
425 /** \ingroup SURF_simulation
432 XBT_PUBLIC(void) surf_exit();
434 /* Prototypes of the functions that handle the properties */
435 XBT_PUBLIC_DATA(xbt_dict_t) current_property_set;// the prop set for the currently parsed element (also used in SIMIX)
437 /* surf parse file related (public because called from a test suite) */
438 XBT_PUBLIC(void) parse_platform_file(const char *file);
440 /* For the trace and trace:connect tag (store their content till the end of the parsing) */
441 XBT_PUBLIC_DATA(xbt_dict_t) traces_set_list;
444 * Returns the initial path. On Windows the initial path is the current directory for the current process in the other
445 * case the function returns "./" that represents the current directory on Unix/Linux platforms.
447 const char *__surf_get_initial_path();
449 /********** Tracing **********/
450 /* from surf_instr.c */
451 void TRACE_surf_action(surf_action_t surf_action, const char *category);
452 void TRACE_surf_alloc();
453 void TRACE_surf_release();
455 /* instr_routing.c */
456 void instr_routing_define_callbacks ();
457 void instr_new_variable_type (const char *new_typename, const char *color);
458 void instr_new_user_variable_type (const char *father_type, const char *new_typename, const char *color);
459 void instr_new_user_state_type (const char *father_type, const char *new_typename);
460 void instr_new_value_for_user_state_type (const char *_typename, const char *value, const char *color);
461 int instr_platform_traced ();
462 xbt_graph_t instr_routing_platform_graph ();
463 void instr_routing_platform_graph_export_graphviz (xbt_graph_t g, const char *filename);