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Add a sequential mode to the workstations. In this mode, only one task can be execute...
[simgrid.git] / include / simdag / simdag.h
1 #ifndef SIMDAG_SIMDAG_H
2 #define SIMDAG_SIMDAG_H
3
4 #include "simdag/datatypes.h"
5 #include "xbt/misc.h"
6
7 SG_BEGIN_DECL()
8
9 /************************** Link handling ***********************************/
10
11 /** @defgroup SD_link_management Links
12  *  @brief Functions for managing the network links
13  * 
14  *  This section describes the functions for managing the network links.
15  *  
16  *  A link is a network node represented as a <em>name</em>, a <em>current
17  *  bandwidth</em> and a <em>current latency</em>. The links are created
18  *  when you call the function SD_create_environment.
19  *
20  *  @see SD_link_t
21  *  @{
22  */
23 const SD_link_t*   SD_link_get_list(void);
24 int                SD_link_get_number(void);
25 void*              SD_link_get_data(SD_link_t link);
26 void               SD_link_set_data(SD_link_t link, void *data);
27 const char*        SD_link_get_name(SD_link_t link);
28 double             SD_link_get_current_bandwidth(SD_link_t link);
29 double             SD_link_get_current_latency(SD_link_t link);
30 /** @} */
31
32 /************************** Workstation handling ****************************/
33
34 /** @defgroup SD_workstation_management Workstations
35  *  @brief Functions for managing the workstations
36  * 
37  *  This section describes the functions for managing the workstations.
38  *  
39  *  A workstation is a place where a task can be executed.
40  *  A workstation is represented as a <em>physical
41  *  resource with computing capabilities</em> and has a <em>name</em>.
42  *
43  *  The workstations are created when you call the function SD_create_environment.
44  *
45  *  @see SD_workstation_t
46  *  @{
47  */
48 SD_workstation_t        SD_workstation_get_by_name(const char *name);
49 const SD_workstation_t* SD_workstation_get_list(void);
50 int                     SD_workstation_get_number(void);
51 void                    SD_workstation_set_data(SD_workstation_t workstation, void *data);
52 void*                   SD_workstation_get_data(SD_workstation_t workstation);
53 const char*             SD_workstation_get_name(SD_workstation_t workstation);
54 SD_link_t*              SD_route_get_list(SD_workstation_t src, SD_workstation_t dst);
55 int                     SD_route_get_size(SD_workstation_t src, SD_workstation_t dst);
56 double                  SD_workstation_get_power(SD_workstation_t workstation);
57 double                  SD_workstation_get_available_power(SD_workstation_t workstation);
58 e_SD_workstation_access_mode_t SD_workstation_get_access_mode(SD_workstation_t workstation);
59 void                    SD_workstation_set_access_mode(SD_workstation_t workstation,
60                                                        e_SD_workstation_access_mode_t access_mode);
61
62 double    SD_workstation_get_computation_time(SD_workstation_t workstation, double computation_amount);
63 double    SD_route_get_current_latency(SD_workstation_t src, SD_workstation_t dst);
64 double    SD_route_get_current_bandwidth(SD_workstation_t src, SD_workstation_t dst);
65 double    SD_route_get_communication_time(SD_workstation_t src, SD_workstation_t dst,
66                                                       double communication_amount);
67
68 /** @} */
69
70 /************************** Task handling ************************************/
71
72 /** @defgroup SD_task_management Tasks
73  *  @brief Functions for managing the tasks
74  * 
75  *  This section describes the functions for managing the tasks.
76  *  
77  *  A task is some <em>working amount</em> that can be executed
78  *  in parallel on several workstations. A task may depend on other
79  *  tasks, this means that the task cannot start until the other tasks are done.
80  *  Each task has a <em>\ref e_SD_task_state_t "state"</em> indicating whether
81  *  the task is scheduled, running, done, etc.
82  *  
83  *  @see SD_task_t, SD_task_dependency_management
84  *  @{
85  */
86 SD_task_t         SD_task_create(const char *name, void *data, double amount);
87 void*             SD_task_get_data(SD_task_t task);
88 void              SD_task_set_data(SD_task_t task, void *data);
89 e_SD_task_state_t SD_task_get_state(SD_task_t task);
90 const char*       SD_task_get_name(SD_task_t task);
91 void              SD_task_watch(SD_task_t task, e_SD_task_state_t state);
92 void              SD_task_unwatch(SD_task_t task, e_SD_task_state_t state);
93 double            SD_task_get_amount(SD_task_t task);
94 double            SD_task_get_remaining_amount(SD_task_t task);
95 double            SD_task_get_execution_time(SD_task_t task, int workstation_nb,
96                                              const SD_workstation_t *workstation_list,
97                                              const double *computation_amount, const double *communication_amount,
98                                              double rate);
99 void              SD_task_schedule(SD_task_t task, int workstation_nb,
100                                    const SD_workstation_t *workstation_list, const double *computation_amount,
101                                    const double *communication_amount, double rate);
102 void              SD_task_unschedule(SD_task_t task);
103 double            SD_task_get_start_time(SD_task_t task);
104 double            SD_task_get_finish_time(SD_task_t task);
105 void              SD_task_destroy(SD_task_t task);
106 /** @} */
107
108
109 /** @defgroup SD_task_dependency_management Tasks dependencies
110  *  @brief Functions for managing the task dependencies
111  *
112  *  This section describes the functions for managing the dependencies between the tasks.
113  *
114  *  @see SD_task_management
115  *  @{
116  */
117 void              SD_task_dependency_add(const char *name, void *data, SD_task_t src, SD_task_t dst);
118 void              SD_task_dependency_remove(SD_task_t src, SD_task_t dst);
119 void*             SD_task_dependency_get_data(SD_task_t src, SD_task_t dst);
120 /** @} */
121
122 /************************** Global *******************************************/
123
124 /** @defgroup SD_simulation Simulation
125  *  @brief Functions for creating the environment and launching the simulation
126  * 
127  *  This section describes the functions for initialising SimDag, launching
128  *  the simulation and exiting SimDag.
129  *  
130  *  @{
131  */
132 void              SD_init(int *argc, char **argv);
133 void              SD_create_environment(const char *platform_file);
134 SD_task_t*        SD_simulate(double how_long);
135 double            SD_get_clock(void);
136 void              SD_exit(void);
137 /** @} */
138
139 SG_END_DECL()
140
141 #endif