1 /* Copyright (c) 2007-2010, 2012-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #ifndef _SIMIX_PRIVATE_H
8 #define _SIMIX_PRIVATE_H
10 #include "simgrid/simix.h"
11 #include "surf/surf.h"
16 #include "xbt/mallocator.h"
17 #include "xbt/config.h"
18 #include "xbt/xbt_os_time.h"
19 #include "xbt/function_types.h"
20 #include "src/xbt/ex_interface.h"
21 #include "src/instr/instr_private.h"
22 #include "smx_process_private.h"
23 #include "smx_host_private.h"
24 #include "smx_io_private.h"
25 #include "smx_network_private.h"
26 #include "popping_private.h"
27 #include "smx_synchro_private.h"
33 #include <simgrid/simix.hpp>
38 /* Hack: let msg load directly the right factory
40 * This is a factory of factory! How nice is this?
42 typedef ContextFactory* (*ContextFactoryInitializer)(void);
43 XBT_PUBLIC_DATA(ContextFactoryInitializer) factory_initializer;
48 typedef simgrid::simix::ContextFactory *smx_context_factory_t;
52 typedef struct s_smx_context_factory *smx_context_factory_t;
58 /* Define only for SimGrid benchmarking purposes */
59 //#define TIME_BENCH_PER_SR /* this aims at measuring the time spent in each scheduling round per each thread. The code is thus run in sequential to bench separately each SSR */
60 //#define TIME_BENCH_AMDAHL /* this aims at measuring the porting of time that could be parallelized at maximum (to get the optimal speedup by applying the amdahl law). */
61 //#define ADAPTIVE_THRESHOLD /* this is to enable the adaptive threshold algorithm in raw contexts*/
62 //#define TIME_BENCH_ENTIRE_SRS /* more general benchmark than TIME_BENCH_PER_SR. It aims to measure the total time spent in a whole scheduling round (including synchro costs)*/
64 #ifdef TIME_BENCH_PER_SR
65 XBT_PRIVATE void smx_ctx_raw_new_sr(void);
68 /********************************** Simix Global ******************************/
69 typedef struct s_smx_global {
70 smx_context_factory_t context_factory;
71 xbt_dynar_t process_to_run;
72 xbt_dynar_t process_that_ran;
73 xbt_swag_t process_list;
74 xbt_swag_t process_to_destroy;
75 smx_process_t maestro_process;
76 xbt_dict_t registered_functions;
77 smx_creation_func_t create_process_function;
78 void_pfn_smxprocess_t kill_process_function;
79 /** Callback used when killing a SMX_process */
80 void_pfn_smxprocess_t cleanup_process_function;
81 xbt_mallocator_t synchro_mallocator;
83 #ifdef TIME_BENCH_AMDAHL
84 xbt_os_timer_t timer_seq; /* used to bench the sequential and parallel parts of the simulation, if requested to */
85 xbt_os_timer_t timer_par;
89 } s_smx_global_t, *smx_global_t;
91 XBT_PUBLIC_DATA(smx_global_t) simix_global;
92 extern XBT_PRIVATE unsigned long simix_process_maxpid;
94 XBT_PUBLIC(void) SIMIX_clean(void);
96 /******************************** Exceptions *********************************/
97 /** @brief Ask to the provided simix process to raise the provided exception */
98 #define SMX_EXCEPTION(issuer, cat, val, msg) \
100 smx_process_t _smx_throw_issuer = (issuer); /* evaluate only once */\
101 THROW_PREPARE(_smx_throw_issuer->running_ctx, (cat), (val), xbt_strdup(msg)); \
102 _smx_throw_issuer->doexception = 1; \
105 #define SMX_THROW() RETHROW
107 /* ******************************** File ************************************ */
108 typedef struct s_smx_file {
109 surf_file_t surf_file;
110 void* data; /**< @brief user data */
113 /********************************* synchro *************************************/
117 SIMIX_SYNC_PARALLEL_EXECUTE,
118 SIMIX_SYNC_COMMUNICATE,
123 } e_smx_synchro_type_t;
139 /** @brief synchro datatype */
140 typedef struct s_smx_synchro {
142 e_smx_synchro_type_t type; /* Type of SIMIX synchro */
143 e_smx_state_t state; /* State of the synchro */
144 char *name; /* synchro name if any */
145 xbt_fifo_t simcalls; /* List of simcalls waiting for this synchro */
147 /* Data specific to each synchro type */
151 sg_host_t host; /* The host where the execution takes place */
152 surf_action_t surf_exec; /* The Surf execution action encapsulated */
153 } execution; /* Possibly parallel execution */
156 e_smx_comm_type_t type; /* Type of the communication (SIMIX_COMM_SEND or SIMIX_COMM_RECEIVE) */
157 smx_mailbox_t rdv; /* Rendez-vous where the comm is queued */
160 smx_mailbox_t rdv_cpy; /* Copy of the rendez-vous where the comm is queued, MC needs it for DPOR
161 (comm.rdv set to NULL when the communication is removed from the mailbox
162 (used as garbage collector)) */
164 int refcount; /* Number of processes involved in the cond */
165 int detached; /* If detached or not */
167 void (*clean_fun)(void*); /* Function to clean the detached src_buf if something goes wrong */
168 int (*match_fun)(void*,void*,smx_synchro_t); /* Filter function used by the other side. It is used when
169 looking if a given communication matches my needs. For that, myself must match the
170 expectations of the other side, too. See */
171 void (*copy_data_fun) (smx_synchro_t, void*, size_t);
173 /* Surf action data */
174 surf_action_t surf_comm; /* The Surf communication action encapsulated */
175 surf_action_t src_timeout; /* Surf's actions to instrument the timeouts */
176 surf_action_t dst_timeout; /* Surf's actions to instrument the timeouts */
177 smx_process_t src_proc;
178 smx_process_t dst_proc;
182 /* Data to be transfered */
185 size_t src_buff_size;
186 size_t *dst_buff_size;
187 unsigned copied:1; /* whether the data were already copied */
189 void* src_data; /* User data associated to communication */
194 sg_host_t host; /* The host that is sleeping */
195 surf_action_t surf_sleep; /* The Surf sleeping action encapsulated */
204 surf_action_t surf_io;
208 char *category; /* simix action category for instrumentation */
211 XBT_PRIVATE void SIMIX_context_mod_init(void);
212 XBT_PRIVATE void SIMIX_context_mod_exit(void);
214 XBT_PRIVATE smx_context_t SIMIX_context_new(
215 xbt_main_func_t code, int argc, char **argv,
216 void_pfn_smxprocess_t cleanup_func,
217 smx_process_t simix_process);
220 XBT_PUBLIC_DATA(char sigsegv_stack[SIGSTKSZ]);
223 /* We are using the bottom of the stack to save some information, like the
224 * valgrind_stack_id. Define smx_context_usable_stack_size to give the remaining
225 * size for the stack. */
227 # define smx_context_usable_stack_size \
228 (smx_context_stack_size - sizeof(unsigned int)) /* for valgrind_stack_id */
230 # define smx_context_usable_stack_size smx_context_stack_size
233 XBT_PRIVATE void *SIMIX_context_stack_new(void);
234 XBT_PRIVATE void SIMIX_context_stack_delete(void *stack);
236 XBT_PRIVATE void SIMIX_context_set_current(smx_context_t context);
237 XBT_PRIVATE smx_context_t SIMIX_context_get_current(void);
239 /* ****************************** */
240 /* context manipulation functions */
241 /* ****************************** */
243 XBT_PUBLIC(int) SIMIX_process_get_maxpid(void);
245 XBT_PRIVATE void SIMIX_post_create_environment(void);
247 // FIXME, Dirty hack for SMPI+MSG
248 XBT_PRIVATE void SIMIX_process_set_cleanup_function(
249 smx_process_t process, void_pfn_smxprocess_t cleanup);