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. */
7 #include "simgrid/msg.h"
9 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test, "Messages specific for this msg example");
11 /** @addtogroup MSG_examples
13 * - <b>msg/icomms/peer2.c</b>: demonstrates the @ref MSG_comm_waitall function
16 static int sender(int argc, char *argv[])
18 long number_of_tasks = xbt_str_parse_int(argv[1], "Invalid amount of tasks: %s");
19 double task_comp_size = xbt_str_parse_double(argv[2], "Invalid computational size: %s");
20 double task_comm_size = xbt_str_parse_double(argv[3], "Invalid communication size: %s");
21 long receivers_count = xbt_str_parse_int(argv[4], "Invalid amount of receivers: %s");
23 msg_comm_t *comm = xbt_new(msg_comm_t, number_of_tasks + receivers_count);
25 msg_task_t task = NULL;
26 for (i = 0; i < number_of_tasks; i++) {
28 char sprintf_buffer[256];
29 sprintf(mailbox, "receiver-%ld", i % receivers_count);
30 sprintf(sprintf_buffer, "Task_%d", i);
32 MSG_task_create(sprintf_buffer, task_comp_size, task_comm_size,
34 comm[i] = MSG_task_isend(task, mailbox);
35 XBT_INFO("Send to receiver-%ld Task_%d", i % receivers_count, i);
37 for (i = 0; i < receivers_count; i++) {
39 sprintf(mailbox, "receiver-%ld", i % receivers_count);
40 task = MSG_task_create("finalize", 0, 0, 0);
41 comm[i + number_of_tasks] = MSG_task_isend(task, mailbox);
42 XBT_INFO("Send to receiver-%ld finalize", i % receivers_count);
45 /* Here we are waiting for the completion of all communications */
46 MSG_comm_waitall(comm, (number_of_tasks + receivers_count), -1);
47 for (i = 0; i < number_of_tasks + receivers_count; i++)
48 MSG_comm_destroy(comm[i]);
50 XBT_INFO("Goodbye now!");
55 static int receiver(int argc, char *argv[])
57 msg_task_t task = NULL;
58 XBT_ATTRIB_UNUSED msg_error_t res;
62 XBT_ATTRIB_UNUSED int read;
63 read = sscanf(argv[1], "%d", &id);
64 xbt_assert(read, "Invalid argument %s\n", argv[1]);
65 MSG_process_sleep(10);
66 sprintf(mailbox, "receiver-%d", id);
68 res_irecv = MSG_task_irecv(&(task), mailbox);
69 XBT_INFO("Wait to receive a task");
70 res = MSG_comm_wait(res_irecv, -1);
71 MSG_comm_destroy(res_irecv);
72 xbt_assert(res == MSG_OK, "MSG_task_get failed");
73 XBT_INFO("Received \"%s\"", MSG_task_get_name(task));
74 if (!strcmp(MSG_task_get_name(task), "finalize")) {
75 MSG_task_destroy(task);
79 XBT_INFO("Processing \"%s\"", MSG_task_get_name(task));
80 MSG_task_execute(task);
81 XBT_INFO("\"%s\" done", MSG_task_get_name(task));
82 MSG_task_destroy(task);
85 XBT_INFO("I'm done. See you!");
89 int main(int argc, char *argv[])
91 msg_error_t res = MSG_OK;
93 MSG_init(&argc, argv);
94 xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
95 "\tExample: %s msg_platform.xml msg_deployment.xml\n", argv[0], argv[0]);
97 MSG_create_environment(argv[1]);
98 MSG_function_register("sender", sender);
99 MSG_function_register("receiver", receiver);
100 MSG_launch_application(argv[2]);
104 XBT_INFO("Simulation time %g", MSG_get_clock());
106 return res != MSG_OK;