1 /* Copyright (c) 2010-2015. 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 "simgrid/msg.h" /* Yeah! If you want to use msg, you need to include simgrid/msg.h */
9 #include "xbt/sysdep.h"
11 /* Create a log channel to have nice outputs. */
13 #include "xbt/asserts.h"
14 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,
15 "Messages specific for this msg example");
17 int master(int argc, char *argv[]);
18 int slave(int argc, char *argv[]);
20 /** Sender function */
21 int master(int argc, char *argv[])
23 long number_of_tasks = xbt_str_parse_int(argv[1], "Invalid amount of tasks: %s");
24 double task_comp_size = xbt_str_parse_double(argv[2], "Invalid computational size: %s");
25 double task_comm_size = xbt_str_parse_double(argv[3], "Invalid communication size: %s");
26 long slaves_count = xbt_str_parse_int(argv[4], "Invalid amount of slaves: %s");
30 XBT_INFO("Got %ld slaves and %ld tasks to process", slaves_count, number_of_tasks);
32 for (i = 0; i < number_of_tasks; i++) {
34 char sprintf_buffer[256];
35 msg_task_t task = NULL;
37 sprintf(mailbox, "slave-%ld", i % slaves_count);
38 sprintf(sprintf_buffer, "Task_%d", i);
40 MSG_task_create(sprintf_buffer, task_comp_size, task_comm_size,
42 if (number_of_tasks < 10000 || i % 10000 == 0)
43 XBT_INFO("Sending \"%s\" (of %ld) to mailbox \"%s\"", task->name,
44 number_of_tasks, mailbox);
46 MSG_task_send(task, mailbox);
50 ("All tasks have been dispatched. Let's tell everybody the computation is over.");
51 for (i = 0; i < slaves_count; i++) {
54 sprintf(mailbox, "slave-%ld", i % slaves_count);
55 msg_task_t finalize = MSG_task_create("finalize", 0, 0, 0);
56 MSG_task_send(finalize, mailbox);
59 // XBT_INFO("Goodbye now!");
63 /** Receiver function */
64 int slave(int argc, char *argv[])
66 msg_task_t task = NULL;
67 XBT_ATTRIB_UNUSED int res;
70 XBT_ATTRIB_UNUSED int read;
72 read = sscanf(argv[1], "%d", &id);
73 xbt_assert(read, "Invalid argument %s\n", argv[1]);
75 sprintf(mailbox, "slave-%d", id);
78 res = MSG_task_receive(&(task), mailbox);
79 xbt_assert(res == MSG_OK, "MSG_task_get failed");
81 // XBT_INFO("Received \"%s\"", MSG_task_get_name(task));
82 if (!strcmp(MSG_task_get_name(task), "finalize")) {
83 MSG_task_destroy(task);
86 // XBT_INFO("Processing \"%s\"", MSG_task_get_name(task));
87 MSG_task_execute(task);
88 // XBT_INFO("\"%s\" done", MSG_task_get_name(task));
89 MSG_task_destroy(task);
92 XBT_INFO("I'm done. See you!");
97 int main(int argc, char *argv[])
100 const char *platform_file;
101 const char *application_file;
103 MSG_init(&argc, argv);
104 xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
105 "\tExample: %s msg_platform.xml msg_deployment.xml\n",
108 platform_file = argv[1];
109 application_file = argv[2];
111 { /* Simulation setting */
112 MSG_create_environment(platform_file);
114 { /* Application deployment */
115 MSG_function_register("master", master);
116 MSG_function_register("slave", slave);
117 MSG_launch_application(application_file);
121 XBT_INFO("Simulation time %g", MSG_get_clock());
123 return res != MSG_OK;