1 /* Copyright (c) 2006, 2007, 2008, 2009, 2010. 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 SIMDAG_PRIVATE_H
8 #define SIMDAG_PRIVATE_H
11 #include "xbt/dynar.h"
13 #include "simdag/simdag.h"
14 #include "simdag/datatypes.h"
15 #include "surf/solver.h"
16 #include "surf/surf.h"
18 #include "xbt/mallocator.h"
21 /* Global variables */
23 typedef struct SD_global {
24 SD_workstation_t *workstation_list; /* array of workstations, created only if
25 necessary in SD_workstation_get_list */
26 SD_link_t *link_list; /* array of links, created only if
27 necessary in SD_link_get_list */
28 SD_link_t *recyclable_route; /* array returned by SD_route_get_list
29 and mallocated only once */
31 xbt_mallocator_t task_mallocator; /* to not remalloc new tasks */
33 int watch_point_reached; /* has a task just reached a watch point? */
36 xbt_swag_t not_scheduled_task_set;
37 xbt_swag_t schedulable_task_set;
38 xbt_swag_t scheduled_task_set;
39 xbt_swag_t runnable_task_set;
40 xbt_swag_t in_fifo_task_set;
41 xbt_swag_t running_task_set;
42 xbt_swag_t done_task_set;
43 xbt_swag_t failed_task_set;
45 xbt_swag_t return_set;
48 } s_SD_global_t, *SD_global_t;
50 extern SD_global_t sd_global;
53 typedef struct SD_link {
54 void *surf_link; /* surf object */
55 void *data; /* user data */
56 e_SD_link_sharing_policy_t sharing_policy;
60 typedef s_xbt_dictelm_t s_SD_workstation_t;
61 typedef struct SD_workstation {
62 void *data; /* user data */
63 e_SD_workstation_access_mode_t access_mode;
65 xbt_fifo_t task_fifo; /* only used in sequential mode */
66 SD_task_t current_task; /* only used in sequential mode */
67 } s_SD_workstation_priv_t, *SD_workstation_priv_t;
69 static inline SD_workstation_priv_t SD_workstation_priv(SD_workstation_t host){
70 return xbt_lib_get_level(host, SD_HOST_LEVEL);
74 typedef struct SD_task {
75 s_xbt_swag_hookup_t state_hookup;
76 s_xbt_swag_hookup_t return_hookup;
78 e_SD_task_state_t state;
79 void *data; /* user data */
83 double alpha; /* used by typed parallel tasks */
87 surf_action_t surf_action;
88 unsigned short watch_points; /* bit field xor()ed with masks */
90 int fifo_checked; /* used by SD_task_just_done to make sure we evaluate
92 int marked; /* used to check if the task DAG has some cycle*/
95 xbt_dynar_t tasks_before;
96 xbt_dynar_t tasks_after;
97 int unsatisfied_dependencies;
98 unsigned int is_not_ready;
100 /* scheduling parameters (only exist in state SD_SCHEDULED) */
102 SD_workstation_t *workstation_list; /* surf workstations */
103 double *computation_amount;
104 double *communication_amount;
108 long long int counter; /* task unique identifier for instrumentation */
109 char *category; /* sd task category for instrumentation */
113 /* Task dependencies */
114 typedef struct SD_dependency {
119 /* src must be finished before dst can start */
120 } s_SD_dependency_t, *SD_dependency_t;
122 /* SimDag private functions */
123 XBT_PUBLIC(xbt_swag_t) SD_simulate_swag(double how_long); /* could be public, but you need to see the internals of the SD_task_t to use it */
126 SD_link_t __SD_link_create(void *surf_link, void *data);
127 #define __SD_link_destroy xbt_free_f
129 SD_workstation_t __SD_workstation_create(void *surf_workstation,
131 void __SD_workstation_destroy(void *workstation);
132 int __SD_workstation_is_busy(SD_workstation_t workstation);
134 void __SD_task_set_state(SD_task_t task, e_SD_task_state_t new_state);
135 void __SD_task_really_run(SD_task_t task);
136 int __SD_task_try_to_run(SD_task_t task);
137 void __SD_task_just_done(SD_task_t task);
138 bool acyclic_graph_detail(xbt_dynar_t dag);
140 /* Task mallocator functions */
141 void* SD_task_new_f(void);
142 void SD_task_recycle_f(void *t);
143 void SD_task_free_f(void *t);
145 /* Functions to test if the task is in a given state. */
147 /* Returns whether the given task is scheduled or runnable. */
148 static XBT_INLINE int __SD_task_is_scheduled_or_runnable(SD_task_t task)
150 return task->state_set == sd_global->scheduled_task_set ||
151 task->state_set == sd_global->runnable_task_set;
154 /* Returns whether the given task is scheduled or runnable. */
155 static XBT_INLINE int __SD_task_is_schedulable_or_done(SD_task_t task)
157 return task->state_set == sd_global->schedulable_task_set ||
158 task->state_set == sd_global->done_task_set;
161 /* Returns whether the state of the given task is SD_NOT_SCHEDULED. */
162 static XBT_INLINE int __SD_task_is_not_scheduled(SD_task_t task)
164 return task->state_set == sd_global->not_scheduled_task_set;
167 /* Returns whether the state of the given task is SD_SCHEDULED. */
168 static XBT_INLINE int __SD_task_is_schedulable(SD_task_t task)
170 return task->state_set == sd_global->schedulable_task_set;
173 /* Returns whether the state of the given task is SD_SCHEDULED. */
174 static XBT_INLINE int __SD_task_is_scheduled(SD_task_t task)
176 return task->state_set == sd_global->scheduled_task_set;
179 /* Returns whether the state of the given task is SD_RUNNABLE. */
180 static XBT_INLINE int __SD_task_is_runnable(SD_task_t task)
182 return task->state_set == sd_global->runnable_task_set;
185 /* Returns whether the state of the given task is SD_IN_FIFO. */
186 static XBT_INLINE int __SD_task_is_in_fifo(SD_task_t task)
188 return task->state_set == sd_global->in_fifo_task_set;
191 /* Returns whether the state of the given task is SD_RUNNABLE or SD_IN_FIFO. */
192 static XBT_INLINE int __SD_task_is_runnable_or_in_fifo(SD_task_t task)
194 return task->state_set == sd_global->runnable_task_set ||
195 task->state_set == sd_global->in_fifo_task_set;
198 /* Returns whether the state of the given task is SD_RUNNING. */
199 static XBT_INLINE int __SD_task_is_running(SD_task_t task)
201 return task->state_set == sd_global->running_task_set;
203 /********** Tracing **********/
204 /* declaration of instrumentation functions from sd_task_instr.c */
205 void TRACE_sd_task_create(SD_task_t task);
206 void TRACE_sd_task_execute_start(SD_task_t task);
207 void TRACE_sd_task_execute_end(SD_task_t task);
208 void TRACE_sd_task_destroy(SD_task_t task);