1 /* Copyright (c) 2007-2015. 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. */
9 #include "simgrid/msg.h" /* Yeah! If you want to use msg, you need to include simgrid/msg.h */
10 #include "xbt/sysdep.h" /* calloc */
12 /* Create a log channel to have nice outputs. */
14 #include "xbt/asserts.h"
16 /** @addtogroup MSG_examples
18 * - <b>sendrecv/sendrecv.c: Ping-pong example</b>. It's hard to
19 * think of a simpler example. The tesh files laying in the
20 * directory are instructive concerning the way to pass options to the simulators (as described in \ref options).
23 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,
24 "Messages specific for this msg example");
26 int sender(int argc, char *argv[]);
27 int receiver(int argc, char *argv[]);
29 double task_comm_size_lat = 1;
30 double task_comm_size_bw = 10e8;
32 /** Emitter function */
33 int sender(int argc, char *argv[])
35 msg_host_t host = NULL;
37 msg_task_t task_la = NULL;
38 msg_task_t task_bw = NULL;
39 char sprintf_buffer_la[64];
40 char sprintf_buffer_bw[64];
44 /*host = xbt_new0(msg_host_t,1); */
46 XBT_INFO("host = %s", argv[1]);
48 host = MSG_host_by_name(argv[1]);
51 XBT_INFO("Unknown host %s. Stopping Now! ", argv[1]);
56 time = MSG_get_clock();
57 sprintf(sprintf_buffer_la, "latency task");
59 MSG_task_create(sprintf_buffer_la, 0.0, task_comm_size_lat, NULL);
60 task_la->data = xbt_new(double, 1);
61 *(double *) task_la->data = time;
62 XBT_INFO("task_la->data = %e", *((double *) task_la->data));
63 MSG_task_send(task_la, argv[1]);
66 time = MSG_get_clock();
67 sprintf(sprintf_buffer_bw, "bandwidth task");
69 MSG_task_create(sprintf_buffer_bw, 0.0, task_comm_size_bw, NULL);
70 task_bw->data = xbt_new(double, 1);
71 *(double *) task_bw->data = time;
72 XBT_INFO("task_bw->data = %e", *((double *) task_bw->data));
73 MSG_task_send(task_bw, argv[1]);
78 /** Receiver function */
79 int receiver(int argc, char *argv[])
81 double time, time1, sender_time;
82 msg_task_t task_la = NULL;
83 msg_task_t task_bw = NULL;
85 double communication_time = 0;
90 a = MSG_task_receive(&task_la,MSG_host_get_name(MSG_host_self()));
92 time1 = MSG_get_clock();
93 sender_time = *((double *) (task_la->data));
95 communication_time = time1 - time;
96 XBT_INFO("Task received : %s", task_la->name);
97 xbt_free(task_la->data);
98 MSG_task_destroy(task_la);
99 XBT_INFO("Communic. time %e", communication_time);
100 XBT_INFO("--- la %f ----", communication_time);
102 xbt_die("Unexpected behavior");
106 a = MSG_task_receive(&task_bw,MSG_host_get_name(MSG_host_self()));
108 time1 = MSG_get_clock();
109 sender_time = *((double *) (task_bw->data));
111 communication_time = time1 - time;
112 XBT_INFO("Task received : %s", task_bw->name);
113 xbt_free(task_bw->data);
114 MSG_task_destroy(task_bw);
115 XBT_INFO("Communic. time %e", communication_time);
116 XBT_INFO("--- bw %f ----", task_comm_size_bw / communication_time);
118 xbt_die("Unexpected behavior");
123 } /* end_of_receiver */
126 const char* platform_file;
127 const char* application_file;
131 static msg_error_t test_all(struct application* app)
133 msg_error_t res = MSG_OK;
135 XBT_INFO("test_all");
137 /* Simulation setting */
138 MSG_create_environment(app->platform_file);
140 /* Become one of the simulated process.
142 * This must be done after the creation of the platform
143 * because we are depending attaching to a host.*/
144 MSG_process_attach("sender", NULL, MSG_host_by_name("Tremblay"), NULL);
146 /* Application deployment */
147 MSG_function_register("receiver", receiver);
149 MSG_launch_application(app->application_file);
151 // Execute the sender code:
152 const char* argv[3] = { "sender", "Jupiter", NULL };
153 sender(2, (char**) argv);
155 MSG_process_detach();
157 } /* end_of_test_all */
160 void maestro(void* data)
162 // struct application* app = (struct application*) data;
167 int main(int argc, char *argv[])
169 msg_error_t res = MSG_OK;
172 unsigned int prev_exponent_format =
173 _set_output_format(_TWO_DIGIT_EXPONENT);
176 struct application app;
177 app.platform_file = argv[1];
178 app.application_file = argv[2];
180 SIMIX_set_maestro(maestro, &app);
181 MSG_init(&argc, argv);
184 XBT_CRITICAL("Usage: %s platform_file deployment_file\n",
186 xbt_die("example: %s msg_platform.xml msg_deployment.xml\n",argv[0]);
189 res = test_all(&app);
191 XBT_INFO("Total simulation time: %e", MSG_get_clock());
194 _set_output_format(prev_exponent_format);