1 /* Copyright (c) 2007-2010, 2012-2013. 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. */
8 #include "msg/msg.h" /* Yeah! If you want to use msg, you need to include msg/msg.h */
9 #include "xbt/sysdep.h" /* calloc, printf */
11 /* Create a log channel to have nice outputs. */
13 #include "xbt/asserts.h"
15 /* we are going to use a generated platform */
16 #include "simgrid/platf_generator.h"
17 #include "simgrid/platf_interface.h"
19 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,
20 "Messages specific for this msg example");
22 int master(int argc, char *argv[]);
23 int slave(int argc, char *argv[]);
24 void promoter_1(context_node_t node);
25 void labeler_1(context_edge_t edge);
27 #define FINALIZE ((void*)221297) /* a magic number to tell people to stop working */
29 #define TASK_COUNT_PER_HOST 5 /* Number of tasks each slave has to do */
30 #define TASK_COMP_SIZE 15000000 /* computation cost of each task */
31 #define TASK_COMM_SIZE 1200000 /* communication time of task */
34 * Just promote each node into a host, with fixed power
35 * Set one node as master
36 * Add a state trace on other nodes
38 void promoter_1(context_node_t node) {
40 s_sg_platf_host_cbarg_t host_parameters;
41 static int master_choosen = FALSE;
43 host_parameters.id = NULL;
44 host_parameters.power_peak = xbt_dynar_new(sizeof(double), NULL);
45 xbt_dynar_push_as(host_parameters.power_peak, double, 25000000.0);
46 host_parameters.core_amount = 1;
47 host_parameters.power_scale = 1;
48 host_parameters.power_trace = NULL;
49 host_parameters.initial_state = SURF_RESOURCE_ON;
50 host_parameters.state_trace = NULL;
51 host_parameters.coord = NULL;
52 host_parameters.properties = NULL;
55 master_choosen = TRUE;
56 host_parameters.id = "host_master";
59 char* pw_date_generator_id = bprintf("pw_date_host_%ld", node->id);
60 char* pw_value_generator_id = bprintf("pw_value_host_%ld", node->id);
61 probabilist_event_generator_t pw_date_generator =
62 tmgr_event_generator_new_uniform(pw_date_generator_id, 5, 10);
63 probabilist_event_generator_t pw_value_generator =
64 tmgr_event_generator_new_uniform(pw_value_generator_id, 0.6, 1.0);
65 host_parameters.power_trace =
66 tmgr_trace_generator_value(bprintf("pw_host_%ld", node->id),
71 platf_graph_promote_to_host(node, &host_parameters);
76 * Set all links with the same bandwidth and latency
77 * Add a state trace to each link
79 void labeler_1(context_edge_t edge) {
80 s_sg_platf_link_cbarg_t link_parameters;
81 link_parameters.id = NULL;
82 link_parameters.bandwidth = 100000000;
83 link_parameters.bandwidth_trace = NULL;
84 link_parameters.latency = 0.01;
85 link_parameters.latency_trace = NULL;
86 link_parameters.state = SURF_RESOURCE_ON;
87 link_parameters.state_trace = NULL;
88 link_parameters.policy = SURF_LINK_SHARED;
89 link_parameters.properties = NULL;
91 char* avail_generator_id = bprintf("avail_link_%ld", edge->id);
92 char* unavail_generator_id = bprintf("unavail_link_%ld", edge->id);
94 probabilist_event_generator_t avail_generator =
95 tmgr_event_generator_new_exponential(avail_generator_id, 0.0001);
96 probabilist_event_generator_t unavail_generator =
97 tmgr_event_generator_new_uniform(unavail_generator_id, 10, 20);
99 link_parameters.state_trace =
100 tmgr_trace_generator_avail_unavail(bprintf("state_link_%ld", edge->id),
106 platf_graph_link_label(edge, &link_parameters);
110 int master(int argc, char *argv[])
112 int slaves_count = 0;
113 msg_host_t *slaves = NULL;
114 int number_of_tasks = 0;
115 double task_comp_size = 0;
116 double task_comm_size = 0;
119 number_of_tasks = TASK_COUNT_PER_HOST*argc;
120 task_comp_size = TASK_COMP_SIZE;
121 task_comm_size = TASK_COMM_SIZE;
123 { /* Process organization */
125 slaves = xbt_new0(msg_host_t, slaves_count);
127 for (i = 0; i < argc; i++) {
128 slaves[i] = MSG_get_host_by_name(argv[i]);
129 if (slaves[i] == NULL) {
130 XBT_INFO("Unknown host %s. Stopping Now! ", argv[i]);
136 XBT_INFO("Got %d slave(s) :", slaves_count);
137 for (i = 0; i < slaves_count; i++)
138 XBT_INFO("%s", MSG_host_get_name(slaves[i]));
140 XBT_INFO("Got %d task to process :", number_of_tasks);
142 for (i = 0; i < number_of_tasks; i++) {
143 msg_task_t task = MSG_task_create("Task", task_comp_size, task_comm_size,
144 xbt_new0(double, 1));
146 *((double *) task->data) = MSG_get_clock();
148 a = MSG_task_send_with_timeout(task,MSG_host_get_name(slaves[i % slaves_count]),10.0);
151 XBT_INFO("Send completed");
152 } else if (a == MSG_HOST_FAILURE) {
154 ("Gloups. The cpu on which I'm running just turned off!. See you!");
156 MSG_task_destroy(task);
159 } else if (a == MSG_TRANSFER_FAILURE) {
161 ("Mmh. Something went wrong with '%s'. Nevermind. Let's keep going!",
162 MSG_host_get_name(slaves[i % slaves_count]));
164 MSG_task_destroy(task);
165 } else if (a == MSG_TIMEOUT) {
167 ("Mmh. Got timeouted while speaking to '%s'. Nevermind. Let's keep going!",
168 MSG_host_get_name(slaves[i % slaves_count]));
170 MSG_task_destroy(task);
172 XBT_INFO("Hey ?! What's up ? ");
173 xbt_die( "Unexpected behavior");
178 ("All tasks have been dispatched. Let's tell everybody the computation is over.");
179 for (i = 0; i < slaves_count; i++) {
180 msg_task_t task = MSG_task_create("finalize", 0, 0, FINALIZE);
181 int a = MSG_task_send_with_timeout(task,MSG_host_get_name(slaves[i]),1.0);
184 if (a == MSG_HOST_FAILURE) {
186 ("Gloups. The cpu on which I'm running just turned off!. See you!");
187 MSG_task_destroy(task);
190 } else if (a == MSG_TRANSFER_FAILURE) {
191 XBT_INFO("Mmh. Can't reach '%s'! Nevermind. Let's keep going!",
192 MSG_host_get_name(slaves[i]));
193 MSG_task_destroy(task);
194 } else if (a == MSG_TIMEOUT) {
196 ("Mmh. Got timeouted while speaking to '%s'. Nevermind. Let's keep going!",
197 MSG_host_get_name(slaves[i % slaves_count]));
198 MSG_task_destroy(task);
200 XBT_INFO("Hey ?! What's up ? ");
201 xbt_die("Unexpected behavior with '%s': %d", MSG_host_get_name(slaves[i]), a);
205 XBT_INFO("Goodbye now!");
208 } /* end_of_master */
210 int slave(int argc, char *argv[])
213 msg_task_t task = NULL;
217 time1 = MSG_get_clock();
218 a = MSG_task_receive( &(task), MSG_host_get_name(MSG_host_self()) );
219 time2 = MSG_get_clock();
221 XBT_INFO("Received \"%s\"", MSG_task_get_name(task));
222 if (MSG_task_get_data(task) == FINALIZE) {
223 MSG_task_destroy(task);
226 if (time1 < *((double *) task->data))
227 time1 = *((double *) task->data);
228 XBT_INFO("Communication time : \"%f\"", time2 - time1);
229 XBT_INFO("Processing \"%s\"", MSG_task_get_name(task));
230 a = MSG_task_execute(task);
232 XBT_INFO("\"%s\" done", MSG_task_get_name(task));
234 MSG_task_destroy(task);
235 } else if (a == MSG_HOST_FAILURE) {
237 ("Gloups. The cpu on which I'm running just turned off!. See you!");
240 XBT_INFO("Hey ?! What's up ? ");
241 xbt_die("Unexpected behavior");
243 } else if (a == MSG_HOST_FAILURE) {
245 ("Gloups. The cpu on which I'm running just turned off!. See you!");
247 } else if (a == MSG_TRANSFER_FAILURE) {
248 XBT_INFO("Mmh. Something went wrong. Nevermind. Let's keep going!");
249 } else if (a == MSG_TIMEOUT) {
250 XBT_INFO("Mmh. Got a timeout. Nevermind. Let's keep going!");
252 XBT_INFO("Hey ?! What's up ? ");
253 xbt_die("Unexpected behavior");
256 XBT_INFO("I'm done. See you!");
261 int main(int argc, char *argv[])
263 msg_error_t res = MSG_OK;
264 unsigned long seed_platf_gen[] = {134, 233445, 865, 2634, 424242, 876543};
265 unsigned long seed_trace_gen[] = {8865244, 356772, 42, 77465, 2098754, 8725442};
270 MSG_init(&argc, argv);
272 //Set up the seed for the platform generation
273 platf_random_seed(seed_platf_gen);
275 //Set up the RngStream for trace generation
276 sg_platf_rng_stream_init(seed_trace_gen);
278 XBT_INFO("creating nodes...");
279 platf_graph_uniform(10);
283 XBT_INFO("creating links...");
284 platf_graph_clear_links();
285 platf_graph_interconnect_waxman(0.9, 0.4);
286 XBT_INFO("done. Check connectedness...");
287 connected = platf_graph_is_connected();
288 XBT_INFO("Is it connected : %s", connected ? "yes" : (max_tries ? "no, retrying" : "no"));
289 } while(!connected && max_tries);
291 if(!connected && !max_tries) {
292 xbt_die("Impossible to connect the graph, aborting.");
295 XBT_INFO("registering callbacks...");
296 platf_graph_promoter(promoter_1);
297 platf_graph_labeler(labeler_1);
299 XBT_INFO("promoting...");
302 XBT_INFO("labeling...");
305 XBT_INFO("Putting it in surf...");
308 XBT_INFO("Let's get the available hosts and dispatch work:");
311 msg_host_t host = NULL;
312 msg_host_t host_master = NULL;
313 msg_process_t process = NULL;
314 xbt_dynar_t host_dynar = MSG_hosts_as_dynar();
315 char** hostname_list =
316 xbt_malloc(sizeof(char*) * xbt_dynar_length(host_dynar));
318 xbt_dynar_foreach(host_dynar, i, host) {
319 process = MSG_process_create("slave", slave, NULL, host);
320 MSG_process_auto_restart_set(process, TRUE);
321 hostname_list[i] = (char*) MSG_host_get_name(host);
323 host_master = MSG_get_host_by_name("host_master");
324 MSG_process_create_with_arguments("master", master, NULL, host_master,
325 xbt_dynar_length(host_dynar),