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" /* calloc, printf */
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 /** Emitter function */
21 int master(int argc, char *argv[])
23 long number_of_tasks = atol(argv[1]);
24 double task_comp_size = atof(argv[2]);
25 double task_comm_size = atof(argv[3]);
26 long slaves_count = atol(argv[4]);
30 XBT_INFO("Got %ld slaves and %ld tasks to process", slaves_count,
33 for (i = 0; i < number_of_tasks; i++) {
35 char sprintf_buffer[256];
36 msg_task_t task = NULL;
38 sprintf(mailbox, "slave-%ld", i % slaves_count);
39 sprintf(sprintf_buffer, "Task_%d", i);
41 MSG_task_create(sprintf_buffer, task_comp_size, task_comm_size,
43 if (number_of_tasks < 10000 || i % 10000 == 0)
44 XBT_INFO("Sending \"%s\" (of %ld) to mailbox \"%s\"", task->name,
45 number_of_tasks, mailbox);
47 MSG_task_send(task, mailbox);
51 ("All tasks have been dispatched. Let's tell everybody the computation is over.");
52 for (i = 0; i < slaves_count; i++) {
55 sprintf(mailbox, "slave-%ld", i % slaves_count);
56 msg_task_t finalize = MSG_task_create("finalize", 0, 0, 0);
57 MSG_task_send(finalize, mailbox);
60 // XBT_INFO("Goodbye now!");
64 /** Receiver function */
65 int slave(int argc, char *argv[])
67 msg_task_t task = NULL;
68 XBT_ATTRIB_UNUSED int res;
71 XBT_ATTRIB_UNUSED int read;
73 read = sscanf(argv[1], "%d", &id);
74 xbt_assert(read, "Invalid argument %s\n", argv[1]);
76 sprintf(mailbox, "slave-%d", id);
79 res = MSG_task_receive(&(task), mailbox);
80 xbt_assert(res == MSG_OK, "MSG_task_get failed");
82 // XBT_INFO("Received \"%s\"", MSG_task_get_name(task));
83 if (!strcmp(MSG_task_get_name(task), "finalize")) {
84 MSG_task_destroy(task);
87 // XBT_INFO("Processing \"%s\"", MSG_task_get_name(task));
88 MSG_task_execute(task);
89 // XBT_INFO("\"%s\" done", MSG_task_get_name(task));
90 MSG_task_destroy(task);
93 XBT_INFO("I'm done. See you!");
98 int main(int argc, char *argv[])
101 const char *platform_file;
102 const char *application_file;
104 MSG_init(&argc, argv);
106 printf("Usage: %s platform_file deployment_file\n", argv[0]);
107 printf("example: %s msg_platform.xml msg_deployment.xml\n", argv[0]);
110 platform_file = argv[1];
111 application_file = argv[2];
113 { /* Simulation setting */
114 MSG_create_environment(platform_file);
116 { /* Application deployment */
117 MSG_function_register("master", master);
118 MSG_function_register("slave", slave);
119 MSG_launch_application(application_file);
123 XBT_INFO("Simulation time %g", MSG_get_clock());