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 /** @addtogroup MSG_examples
19 * - <b>msg/icomms/peer3.c</b>: demonstrates the @ref MSG_comm_waitany function
22 int sender(int argc, char *argv[]);
23 int receiver(int argc, char *argv[]);
25 msg_error_t test_all(const char *platform_file,
26 const char *application_file);
28 /** Sender function */
29 int sender(int argc, char *argv[])
31 long number_of_tasks = xbt_str_parse_int(argv[1], "Invalid amount of tasks: %s");
32 double task_comp_size = xbt_str_parse_double(argv[2], "Invalid computational size: %s");
33 double task_comm_size = xbt_str_parse_double(argv[3], "Invalid communication size: %s");
34 long receivers_count = xbt_str_parse_int(argv[4], "Invalid amount of receivers: %s");
35 int diff_com = xbt_str_parse_int(argv[5], "Invalid value for diff_comm: %s");
37 xbt_dynar_t d = xbt_dynar_new(sizeof(msg_comm_t), NULL);
41 char sprintf_buffer[256];
44 for (i = 0; i < number_of_tasks; i++) {
50 sprintf(mailbox, "receiver-%ld", (i % receivers_count));
51 sprintf(sprintf_buffer, "Task_%d", i);
53 MSG_task_create(sprintf_buffer, task_comp_size,
54 task_comm_size / coef, NULL);
55 comm = MSG_task_isend(task, mailbox);
56 xbt_dynar_push_as(d, msg_comm_t, comm);
57 XBT_INFO("Send to receiver-%ld %s comm_size %f", i % receivers_count,
58 sprintf_buffer, task_comm_size / coef);
60 /* Here we are waiting for the completion of all communications */
62 while (!xbt_dynar_is_empty(d)) {
63 xbt_dynar_remove_at(d, MSG_comm_waitany(d), &comm);
64 MSG_comm_destroy(comm);
68 /* Here we are waiting for the completion of all tasks */
69 sprintf(mailbox, "finalize");
72 XBT_ATTRIB_UNUSED msg_error_t res_wait;
73 for (i = 0; i < receivers_count; i++) {
75 res_irecv = MSG_task_irecv(&(task), mailbox);
76 res_wait = MSG_comm_wait(res_irecv, -1);
77 xbt_assert(res_wait == MSG_OK, "MSG_comm_wait failed");
78 MSG_comm_destroy(res_irecv);
79 MSG_task_destroy(task);
82 XBT_INFO("Goodbye now!");
86 /** Receiver function */
87 int receiver(int argc, char *argv[])
92 xbt_dynar_t comms = xbt_dynar_new(sizeof(msg_comm_t), NULL);
93 int tasks = xbt_str_parse_int(argv[2], "Invalid amount of tasks: %s");
94 msg_task_t *task = xbt_new(msg_task_t, tasks);
96 XBT_ATTRIB_UNUSED int read;
97 read = sscanf(argv[1], "%d", &id);
98 xbt_assert(read, "Invalid argument %s\n", argv[1]);
99 sprintf(mailbox, "receiver-%d", id);
100 MSG_process_sleep(10);
101 msg_comm_t res_irecv;
102 for (i = 0; i < tasks; i++) {
103 XBT_INFO("Wait to receive task %d", i);
105 res_irecv = MSG_task_irecv(&task[i], mailbox);
106 xbt_dynar_push_as(comms, msg_comm_t, res_irecv);
109 /* Here we are waiting for the receiving of all communications */
111 while (!xbt_dynar_is_empty(comms)) {
112 XBT_ATTRIB_UNUSED msg_error_t err;
113 xbt_dynar_remove_at(comms, MSG_comm_waitany(comms), &res_irecv);
114 task_com = MSG_comm_get_task(res_irecv);
115 MSG_comm_destroy(res_irecv);
116 XBT_INFO("Processing \"%s\"", MSG_task_get_name(task_com));
117 MSG_task_execute(task_com);
118 XBT_INFO("\"%s\" done", MSG_task_get_name(task_com));
119 err = MSG_task_destroy(task_com);
120 xbt_assert(err == MSG_OK, "MSG_task_destroy failed");
122 xbt_dynar_free(&comms);
125 /* Here we tell to sender that all tasks are done */
126 sprintf(mailbox, "finalize");
127 res_irecv = MSG_task_isend(MSG_task_create(NULL, 0, 0, NULL), mailbox);
128 MSG_comm_wait(res_irecv, -1);
129 MSG_comm_destroy(res_irecv);
130 XBT_INFO("I'm done. See you!");
132 } /* end_of_receiver */
135 msg_error_t test_all(const char *platform_file,
136 const char *application_file)
138 msg_error_t res = MSG_OK;
140 { /* Simulation setting */
141 MSG_create_environment(platform_file);
143 { /* Application deployment */
144 MSG_function_register("sender", sender);
145 MSG_function_register("receiver", receiver);
146 MSG_launch_application(application_file);
150 XBT_INFO("Simulation time %g", MSG_get_clock());
152 } /* end_of_test_all */
156 int main(int argc, char *argv[])
158 msg_error_t res = MSG_OK;
160 MSG_init(&argc, argv);
161 xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
162 "\tExample: %s msg_platform.xml msg_deployment.xml\n",
165 res = test_all(argv[1], argv[2]);
167 return res != MSG_OK;