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[simgrid.git] / examples / simdag / sd_test.c
1 /* Copyright (c) 2006-2015. The SimGrid Team.
2  * All rights reserved.                                                     */
3
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. */
6
7 #include <stdio.h>
8 #include <stdlib.h>
9 #include "simgrid/simdag.h"
10 #include "xbt/ex.h"
11 #include "xbt/log.h"
12
13 XBT_LOG_NEW_DEFAULT_CATEGORY(sd_test,
14                              "Logging specific to this SimDag example");
15
16 int main(int argc, char **argv)
17 {
18   int i;
19   unsigned int ctr;
20   const char *platform_file;
21   const SD_workstation_t *workstations;
22   const char *name1;
23   const char *name2;
24   double computation_amount1;
25   double computation_amount2;
26   double communication_amount12;
27   double communication_amount21;
28   const SD_link_t *route;
29   int route_size;
30   SD_task_t task, taskA, taskB, taskC, taskD, checkB, checkD;
31   xbt_dynar_t changed_tasks;
32   xbt_ex_t ex;
33   const int workstation_number = 2;
34   SD_workstation_t workstation_list[2];
35   double computation_amount[2];
36   double communication_amount[4] = { 0 };
37   double rate = -1.0;
38   SD_workstation_t w1, w2;
39
40   /* initialization of SD */
41   SD_init(&argc, argv);
42
43   /*  xbt_log_control_set("sd.thres=debug"); */
44
45   if (argc < 2) {
46     XBT_INFO("Usage: %s platform_file", argv[0]);
47     XBT_INFO("example: %s sd_platform.xml", argv[0]);
48     exit(1);
49   }
50
51   /* creation of the environment */
52   platform_file = argv[1];
53   SD_create_environment(platform_file);
54
55   /* test the estimation functions */
56   workstations = SD_workstation_get_list();
57   w1 = workstations[0];
58   w2 = workstations[1];
59   SD_workstation_set_access_mode(w2, SD_WORKSTATION_SEQUENTIAL_ACCESS);
60   name1 = SD_workstation_get_name(w1);
61   name2 = SD_workstation_get_name(w2);
62   computation_amount1 = 2000000;
63   computation_amount2 = 1000000;
64   communication_amount12 = 2000000;
65   communication_amount21 = 3000000;
66   XBT_INFO("Computation time for %f flops on %s: %f", computation_amount1,
67         name1, SD_workstation_get_computation_time(w1,
68                                                    computation_amount1));
69   XBT_INFO("Computation time for %f flops on %s: %f", computation_amount2,
70         name2, SD_workstation_get_computation_time(w2,
71                                                    computation_amount2));
72
73   XBT_INFO("Route between %s and %s:", name1, name2);
74   route = SD_route_get_list(w1, w2);
75   route_size = SD_route_get_size(w1, w2);
76   for (i = 0; i < route_size; i++) {
77     XBT_INFO("   Link %s: latency = %f, bandwidth = %f",
78           SD_link_get_name(route[i]),
79           SD_link_get_current_latency(route[i]),
80           SD_link_get_current_bandwidth(route[i]));
81   }
82   XBT_INFO("Route latency = %f, route bandwidth = %f",
83         SD_route_get_current_latency(w1, w2),
84         SD_route_get_current_bandwidth(w1, w2));
85   XBT_INFO("Communication time for %f bytes between %s and %s: %f",
86         communication_amount12, name1, name2,
87         SD_route_get_communication_time(w1, w2, communication_amount12));
88   XBT_INFO("Communication time for %f bytes between %s and %s: %f",
89         communication_amount21, name2, name1,
90         SD_route_get_communication_time(w2, w1, communication_amount21));
91
92   /* creation of the tasks and their dependencies */
93   taskA = SD_task_create("Task A", NULL, 10.0);
94   taskB = SD_task_create("Task B", NULL, 40.0);
95   taskC = SD_task_create("Task C", NULL, 30.0);
96   taskD = SD_task_create("Task D", NULL, 60.0);
97
98   /* try to attach and retrieve user data to a task */
99   SD_task_set_data(taskA, (void*) &computation_amount1);
100   if (computation_amount1 != (*((double*) SD_task_get_data(taskA))))
101       XBT_ERROR("User data was corrupted by a simple set/get");
102
103   SD_task_dependency_add(NULL, NULL, taskB, taskA);
104   SD_task_dependency_add(NULL, NULL, taskC, taskA);
105   SD_task_dependency_add(NULL, NULL, taskD, taskB);
106   SD_task_dependency_add(NULL, NULL, taskD, taskC);
107   /*  SD_task_dependency_add(NULL, NULL, taskA, taskD); /\* deadlock */
108
109
110
111   TRY {
112     SD_task_dependency_add(NULL, NULL, taskA, taskA);   /* shouldn't work and must raise an exception */
113     xbt_die("Hey, I can add a dependency between Task A and Task A!");
114   }
115   CATCH(ex) {
116     if (ex.category != arg_error)
117       RETHROW;                  /* this is a serious error */
118     xbt_ex_free(ex);
119   }
120
121   TRY {
122     SD_task_dependency_add(NULL, NULL, taskB, taskA);   /* shouldn't work and must raise an exception */
123     xbt_die("Oh oh, I can add an already existing dependency!");
124   }
125   CATCH(ex) {
126     if (ex.category != arg_error)
127       RETHROW;
128     xbt_ex_free(ex);
129   }
130
131   TRY {
132     SD_task_dependency_remove(taskA, taskC);    /* shouldn't work and must raise an exception */
133     xbt_die("Dude, I can remove an unknown dependency!");
134   }
135   CATCH(ex) {
136     if (ex.category != arg_error)
137       RETHROW;
138     xbt_ex_free(ex);
139   }
140
141   TRY {
142     SD_task_dependency_remove(taskC, taskC);    /* shouldn't work and must raise an exception */
143     xbt_die("Wow, I can remove a dependency between Task C and itself!");
144   }
145   CATCH(ex) {
146     if (ex.category != arg_error)
147       RETHROW;
148     xbt_ex_free(ex);
149   }
150
151
152   /* if everything is ok, no exception is forwarded or rethrown by main() */
153
154   /* watch points */
155   SD_task_watch(taskD, SD_DONE);
156   SD_task_watch(taskB, SD_DONE);
157   SD_task_unwatch(taskD, SD_DONE);
158
159
160   /* scheduling parameters */
161   workstation_list[0] = w1;
162   workstation_list[1] = w2;
163   computation_amount[0] = computation_amount1;
164   computation_amount[1] = computation_amount2;
165
166   communication_amount[1] = communication_amount12;
167   communication_amount[2] = communication_amount21;
168
169   /* estimated time */
170   task = taskD;
171   XBT_INFO("Estimated time for '%s': %f", SD_task_get_name(task),
172         SD_task_get_execution_time(task, workstation_number,
173                                    workstation_list, computation_amount,
174                                    communication_amount));
175
176   /* let's launch the simulation! */
177
178   SD_task_schedule(taskA, workstation_number, workstation_list,
179                    computation_amount, communication_amount, rate);
180   SD_task_schedule(taskB, workstation_number, workstation_list,
181                    computation_amount, communication_amount, rate);
182   SD_task_schedule(taskC, workstation_number, workstation_list,
183                    computation_amount, communication_amount, rate);
184   SD_task_schedule(taskD, workstation_number, workstation_list,
185                    computation_amount, communication_amount, rate);
186
187   changed_tasks = SD_simulate(-1.0);
188   xbt_dynar_foreach(changed_tasks, ctr, task) {
189     XBT_INFO("Task '%s' start time: %f, finish time: %f",
190           SD_task_get_name(task),
191           SD_task_get_start_time(task), SD_task_get_finish_time(task));
192   }
193
194   xbt_dynar_get_cpy(changed_tasks, 0, &checkD);
195   xbt_dynar_get_cpy(changed_tasks, 1, &checkB);
196
197   xbt_assert(checkD == taskD &&
198               checkB == taskB, "Unexpected simulation results");
199
200   xbt_dynar_free_container(&changed_tasks);
201
202   XBT_DEBUG("Destroying tasks...");
203
204   SD_task_destroy(taskA);
205   SD_task_destroy(taskB);
206   SD_task_destroy(taskC);
207   SD_task_destroy(taskD);
208
209   XBT_DEBUG("Tasks destroyed. Exiting SimDag...");
210
211   SD_exit();
212   return 0;
213 }