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/surf.h"
18 #define SD_INITIALISED() (sd_global != NULL)
19 #define SD_CHECK_INIT_DONE() xbt_assert0(SD_INITIALISED(), "Call SD_init() first");
21 /* Global variables */
23 typedef struct SD_global {
24 xbt_dict_t workstations; /* workstation dictionary */
25 int workstation_count; /* number of workstations */
26 SD_workstation_t *workstation_list; /* array of workstations, created only if
27 necessary in SD_workstation_get_list */
29 xbt_dict_t links; /* links */
30 int link_count; /* number of links */
31 SD_link_t *link_list; /* array of links, created only if
32 necessary in SD_link_get_list */
33 SD_link_t *recyclable_route; /* array returned by SD_route_get_list
34 and mallocated only once */
36 int watch_point_reached; /* has a task just reached a watch point? */
39 xbt_swag_t not_scheduled_task_set;
40 xbt_swag_t schedulable_task_set;
41 xbt_swag_t scheduled_task_set;
42 xbt_swag_t runnable_task_set;
43 xbt_swag_t in_fifo_task_set;
44 xbt_swag_t running_task_set;
45 xbt_swag_t done_task_set;
46 xbt_swag_t failed_task_set;
50 } s_SD_global_t, *SD_global_t;
52 extern SD_global_t sd_global;
55 typedef struct SD_link {
56 void *surf_link; /* surf object */
57 void *data; /* user data */
58 e_SD_link_sharing_policy_t sharing_policy;
62 typedef struct SD_workstation {
63 void *surf_workstation; /* surf object */
64 void *data; /* user data */
65 e_SD_workstation_access_mode_t access_mode;
67 xbt_fifo_t task_fifo; /* only used in sequential mode */
68 SD_task_t current_task; /* only used in sequential mode */
72 typedef struct SD_task {
73 s_xbt_swag_hookup_t state_hookup;
75 e_SD_task_state_t state;
76 void *data; /* user data */
83 surf_action_t surf_action;
84 unsigned short watch_points; /* bit field xor()ed with masks */
86 int fifo_checked; /* used by SD_task_just_done to make sure we evaluate
88 int marked; /* used to check if the task DAG has some cycle*/
91 xbt_dynar_t tasks_before;
92 xbt_dynar_t tasks_after;
93 unsigned int unsatisfied_dependencies;
94 unsigned int is_not_ready;
96 /* scheduling parameters (only exist in state SD_SCHEDULED) */
98 SD_workstation_t *workstation_list; /* surf workstations */
99 double *computation_amount;
100 double *communication_amount;
104 char *category; /* sd task category for instrumentation */
108 /* Task dependencies */
109 typedef struct SD_dependency {
114 /* src must be finished before dst can start */
115 } s_SD_dependency_t, *SD_dependency_t;
117 /* SimDag private functions */
119 SD_link_t __SD_link_create(void *surf_link, void *data);
120 void __SD_link_destroy(void *link);
122 SD_workstation_t __SD_workstation_create(void *surf_workstation,
124 void __SD_workstation_destroy(void *workstation);
125 int __SD_workstation_is_busy(SD_workstation_t workstation);
127 void __SD_task_set_state(SD_task_t task, e_SD_task_state_t new_state);
128 void __SD_task_really_run(SD_task_t task);
129 int __SD_task_try_to_run(SD_task_t task);
130 void __SD_task_just_done(SD_task_t task);
131 bool acyclic_graph_detail(xbt_dynar_t dag);
133 /* Functions to test if the task is in a given state. */
135 /* Returns whether the given task is scheduled or runnable. */
136 static XBT_INLINE int __SD_task_is_scheduled_or_runnable(SD_task_t task)
138 return task->state_set == sd_global->scheduled_task_set ||
139 task->state_set == sd_global->runnable_task_set;
142 /* Returns whether the given task is scheduled or runnable. */
143 static XBT_INLINE int __SD_task_is_schedulable_or_done(SD_task_t task)
145 return task->state_set == sd_global->schedulable_task_set ||
146 task->state_set == sd_global->done_task_set;
149 /* Returns whether the state of the given task is SD_NOT_SCHEDULED. */
150 static XBT_INLINE int __SD_task_is_not_scheduled(SD_task_t task)
152 return task->state_set == sd_global->not_scheduled_task_set;
155 /* Returns whether the state of the given task is SD_SCHEDULED. */
156 static XBT_INLINE int __SD_task_is_schedulable(SD_task_t task)
158 return task->state_set == sd_global->schedulable_task_set;
161 /* Returns whether the state of the given task is SD_SCHEDULED. */
162 static XBT_INLINE int __SD_task_is_scheduled(SD_task_t task)
164 return task->state_set == sd_global->scheduled_task_set;
167 /* Returns whether the state of the given task is SD_RUNNABLE. */
168 static XBT_INLINE int __SD_task_is_runnable(SD_task_t task)
170 return task->state_set == sd_global->runnable_task_set;
173 /* Returns whether the state of the given task is SD_IN_FIFO. */
174 static XBT_INLINE int __SD_task_is_in_fifo(SD_task_t task)
176 return task->state_set == sd_global->in_fifo_task_set;
179 /* Returns whether the state of the given task is SD_RUNNABLE or SD_IN_FIFO. */
180 static XBT_INLINE int __SD_task_is_runnable_or_in_fifo(SD_task_t task)
182 return task->state_set == sd_global->runnable_task_set ||
183 task->state_set == sd_global->in_fifo_task_set;
186 /* Returns whether the state of the given task is SD_RUNNING. */
187 static XBT_INLINE int __SD_task_is_running(SD_task_t task)
189 return task->state_set == sd_global->running_task_set;