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/peer3.c</b>: demonstrates the @ref MSG_comm_waitany 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");
22 int diff_com = xbt_str_parse_int(argv[5], "Invalid value for diff_comm: %s");
24 xbt_dynar_t d = xbt_dynar_new(sizeof(msg_comm_t), NULL);
28 char sprintf_buffer[256];
31 for (i = 0; i < number_of_tasks; i++) {
37 sprintf(mailbox, "receiver-%ld", (i % receivers_count));
38 sprintf(sprintf_buffer, "Task_%d", i);
40 MSG_task_create(sprintf_buffer, task_comp_size,
41 task_comm_size / coef, NULL);
42 comm = MSG_task_isend(task, mailbox);
43 xbt_dynar_push_as(d, msg_comm_t, comm);
44 XBT_INFO("Send to receiver-%ld %s comm_size %f", i % receivers_count, sprintf_buffer, task_comm_size / coef);
46 /* Here we are waiting for the completion of all communications */
48 while (!xbt_dynar_is_empty(d)) {
49 xbt_dynar_remove_at(d, MSG_comm_waitany(d), &comm);
50 MSG_comm_destroy(comm);
54 /* Here we are waiting for the completion of all tasks */
55 sprintf(mailbox, "finalize");
58 XBT_ATTRIB_UNUSED msg_error_t res_wait;
59 for (i = 0; i < receivers_count; i++) {
61 res_irecv = MSG_task_irecv(&(task), mailbox);
62 res_wait = MSG_comm_wait(res_irecv, -1);
63 xbt_assert(res_wait == MSG_OK, "MSG_comm_wait failed");
64 MSG_comm_destroy(res_irecv);
65 MSG_task_destroy(task);
68 XBT_INFO("Goodbye now!");
72 static int receiver(int argc, char *argv[])
76 xbt_dynar_t comms = xbt_dynar_new(sizeof(msg_comm_t), NULL);
77 int tasks = xbt_str_parse_int(argv[2], "Invalid amount of tasks: %s");
78 msg_task_t *task = xbt_new(msg_task_t, tasks);
80 XBT_ATTRIB_UNUSED int read;
81 read = sscanf(argv[1], "%d", &id);
82 xbt_assert(read, "Invalid argument %s\n", argv[1]);
83 sprintf(mailbox, "receiver-%d", id);
84 MSG_process_sleep(10);
86 for (int i = 0; i < tasks; i++) {
87 XBT_INFO("Wait to receive task %d", i);
89 res_irecv = MSG_task_irecv(&task[i], mailbox);
90 xbt_dynar_push_as(comms, msg_comm_t, res_irecv);
93 /* Here we are waiting for the receiving of all communications */
95 while (!xbt_dynar_is_empty(comms)) {
96 XBT_ATTRIB_UNUSED msg_error_t err;
97 xbt_dynar_remove_at(comms, MSG_comm_waitany(comms), &res_irecv);
98 task_com = MSG_comm_get_task(res_irecv);
99 MSG_comm_destroy(res_irecv);
100 XBT_INFO("Processing \"%s\"", MSG_task_get_name(task_com));
101 MSG_task_execute(task_com);
102 XBT_INFO("\"%s\" done", MSG_task_get_name(task_com));
103 err = MSG_task_destroy(task_com);
104 xbt_assert(err == MSG_OK, "MSG_task_destroy failed");
106 xbt_dynar_free(&comms);
109 /* Here we tell to sender that all tasks are done */
110 sprintf(mailbox, "finalize");
111 res_irecv = MSG_task_isend(MSG_task_create(NULL, 0, 0, NULL), mailbox);
112 MSG_comm_wait(res_irecv, -1);
113 MSG_comm_destroy(res_irecv);
114 XBT_INFO("I'm done. See you!");
118 int main(int argc, char *argv[])
120 msg_error_t res = MSG_OK;
122 MSG_init(&argc, argv);
123 xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
124 "\tExample: %s msg_platform.xml msg_deployment.xml\n", argv[0], argv[0]);
126 MSG_create_environment(argv[1]);
128 MSG_function_register("sender", sender);
129 MSG_function_register("receiver", receiver);
130 MSG_launch_application(argv[2]);
134 XBT_INFO("Simulation time %g", MSG_get_clock());
136 return res != MSG_OK;