1 /* Copyright (c) 2007, 2008, 2009, 2010. 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 "msg/msg.h" /* Yeah! If you want to use msg, you need to include msg/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 msg_error_t test_all(const char *platform_file,
30 const char *application_file);
32 double task_comm_size_lat = 10e0;
33 double task_comm_size_bw = 10e8;
35 /** Emitter function */
36 int sender(int argc, char *argv[])
38 msg_host_t host = NULL;
40 msg_task_t task_la = NULL;
41 msg_task_t task_bw = NULL;
42 char sprintf_buffer_la[64];
43 char sprintf_buffer_bw[64];
47 /*host = xbt_new0(msg_host_t,1); */
49 XBT_INFO("host = %s", argv[1]);
51 host = MSG_get_host_by_name(argv[1]);
54 XBT_INFO("Unknown host %s. Stopping Now! ", argv[1]);
59 time = MSG_get_clock();
60 sprintf(sprintf_buffer_la, "latency task");
62 MSG_task_create(sprintf_buffer_la, 0.0, task_comm_size_lat, NULL);
63 task_la->data = xbt_new(double, 1);
64 *(double *) task_la->data = time;
65 XBT_INFO("task_la->data = %le", *((double *) task_la->data));
66 MSG_task_send(task_la, argv[1]);
69 time = MSG_get_clock();
70 sprintf(sprintf_buffer_bw, "bandwidth task");
72 MSG_task_create(sprintf_buffer_bw, 0.0, task_comm_size_bw, NULL);
73 task_bw->data = xbt_new(double, 1);
74 *(double *) task_bw->data = time;
75 XBT_INFO("task_bw->data = %le", *((double *) task_bw->data));
76 MSG_task_send(task_bw, argv[1]);
81 /** Receiver function */
82 int receiver(int argc, char *argv[])
84 double time, time1, sender_time;
85 msg_task_t task_la = NULL;
86 msg_task_t task_bw = NULL;
88 double communication_time = 0;
92 time = MSG_get_clock();
95 a = MSG_task_receive(&task_la,MSG_host_get_name(MSG_host_self()));
97 time1 = MSG_get_clock();
98 sender_time = *((double *) (task_la->data));
100 communication_time = time1 - time;
101 XBT_INFO("Task received : %s", task_la->name);
102 xbt_free(task_la->data);
103 MSG_task_destroy(task_la);
104 XBT_INFO("Communic. time %le", communication_time);
105 XBT_INFO("--- la %f ----", communication_time);
107 xbt_die("Unexpected behavior");
112 a = MSG_task_receive(&task_bw,MSG_host_get_name(MSG_host_self()));
114 time1 = MSG_get_clock();
115 sender_time = *((double *) (task_bw->data));
117 communication_time = time1 - time;
118 XBT_INFO("Task received : %s", task_bw->name);
119 xbt_free(task_bw->data);
120 MSG_task_destroy(task_bw);
121 XBT_INFO("Communic. time %le", communication_time);
122 XBT_INFO("--- bw %f ----", task_comm_size_bw / communication_time);
124 xbt_die("Unexpected behavior");
129 } /* end_of_receiver */
133 msg_error_t test_all(const char *platform_file,
134 const char *application_file)
137 msg_error_t res = MSG_OK;
141 XBT_INFO("test_all");
143 /* Simulation setting */
144 MSG_create_environment(platform_file);
146 /* Application deployment */
147 MSG_function_register("sender", sender);
148 MSG_function_register("receiver", receiver);
150 MSG_launch_application(application_file);
155 } /* end_of_test_all */
159 int main(int argc, char *argv[])
161 msg_error_t res = MSG_OK;
164 unsigned int prev_exponent_format =
165 _set_output_format(_TWO_DIGIT_EXPONENT);
168 MSG_init(&argc, argv);
172 XBT_CRITICAL("Usage: %s platform_file deployment_file <model>\n",
175 ("example: %s msg_platform.xml msg_deployment.xml KCCFLN05_Vegas\n",
180 /* Options for the workstation/model:
182 KCCFLN05 => for maxmin
183 KCCFLN05_proportional => for proportional (Vegas)
184 KCCFLN05_Vegas => for TCP Vegas
185 KCCFLN05_Reno => for TCP Reno
187 //MSG_config("workstation/model", argv[3]);
189 res = test_all(argv[1], argv[2]);
191 XBT_INFO("Total simulation time: %le", MSG_get_clock());
194 _set_output_format(prev_exponent_format);