-/* Copyright (c) 2007-2010, 2013-2015. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2007-2017. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#include "simgrid/msg.h" /* Yeah! If you want to use msg, you need to include simgrid/msg.h */
+#include "simgrid/msg.h"
XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test, "Messages specific for this msg example");
/** Master expects 3+ arguments given in the XML deployment file: */
static int master(int argc, char *argv[])
{
- int workers_count = 0;
- msg_host_t *workers = NULL;
- msg_task_t *todo = NULL;
-
- int i;
-
long number_of_tasks = xbt_str_parse_int(argv[1], "Invalid amount of tasks: %s"); /** - Number of tasks */
double comp_size = xbt_str_parse_double(argv[2], "Invalid computational size: %s"); /** - Task compute cost */
double comm_size = xbt_str_parse_double(argv[3], "Invalid communication size: %s"); /** - Task communication size */
- { /* Task creation */
- char sprintf_buffer[64];
-
- todo = xbt_new0(msg_task_t, number_of_tasks);
+ /* Create the tasks in advance */
+ msg_task_t* todo = xbt_new0(msg_task_t, number_of_tasks);
- for (i = 0; i < number_of_tasks; i++) {
- sprintf(sprintf_buffer, "Task_%d", i);
- todo[i] = MSG_task_create(sprintf_buffer, task_comp_size, task_comm_size, NULL);
- }
+ for (int i = 0; i < number_of_tasks; i++) {
+ char sprintf_buffer[64];
+ sprintf(sprintf_buffer, "Task_%d", i);
+ todo[i] = MSG_task_create(sprintf_buffer, comp_size, comm_size, NULL);
}
- { /* Process organization */
- workers_count = argc - 4;
- workers = xbt_new0(msg_host_t, workers_count);
+ /* Get the info about the worker processes from my parameters */
+ int workers_count = argc - 4;
+ msg_host_t* workers = xbt_new0(msg_host_t, workers_count);
- for (i = 4; i < argc; i++) {
- workers[i - 4] = MSG_get_host_by_name(argv[i]);
- xbt_assert(workers[i - 4] != NULL, "Unknown host %s. Stopping Now! ", argv[i]);
- }
+ for (int i = 4; i < argc; i++) {
+ workers[i - 4] = MSG_get_host_by_name(argv[i]);
+ xbt_assert(workers[i - 4] != NULL, "Unknown host %s. Stopping Now! ", argv[i]);
}
-
XBT_INFO("Got %d workers and %ld tasks to process", workers_count, number_of_tasks);
- for (i = 0; i < number_of_tasks; i++) {
- XBT_INFO("Sending \"%s\" to \"%s\"", todo[i]->name, MSG_host_get_name(workers[i % workers_count]));
+ /* Dispatch the tasks */
+ for (int i = 0; i < number_of_tasks; i++) {
+ XBT_INFO("Sending '%s' to '%s'", todo[i]->name, MSG_host_get_name(workers[i % workers_count]));
if (MSG_host_self() == workers[i % workers_count]) {
XBT_INFO("Hey ! It's me ! :)");
}
}
XBT_INFO("All tasks have been dispatched. Let's tell everybody the computation is over.");
- for (i = 0; i < workers_count; i++) {
+ for (int i = 0; i < workers_count; i++) {
msg_task_t finalize = MSG_task_create("finalize", 0, 0, FINALIZE);
MSG_task_send(finalize, MSG_host_get_name(workers[i]));
}
free(workers);
free(todo);
return 0;
-} /* end_of_master */
+}
/** Worker expects a single argument given in the XML deployment file: */
static int worker(int argc, char *argv[])
{
- msg_task_t task = NULL;
- XBT_ATTRIB_UNUSED int res;
while (1) {
- res = MSG_task_receive(&(task),MSG_host_get_name(MSG_host_self()));
+ msg_task_t task = NULL;
+ int res = MSG_task_receive(&(task), MSG_host_get_name(MSG_host_self()));
xbt_assert(res == MSG_OK, "MSG_task_receive failed");
- XBT_INFO("Received \"%s\"", MSG_task_get_name(task));
+ XBT_INFO("Received '%s'", MSG_task_get_name(task));
if (!strcmp(MSG_task_get_name(task), "finalize")) {
MSG_task_destroy(task);
break;
XBT_INFO("Processing \"%s\"", MSG_task_get_name(task));
MSG_task_execute(task);
- XBT_INFO("\"%s\" done", MSG_task_get_name(task));
+ XBT_INFO("'%s' done", MSG_task_get_name(task));
MSG_task_destroy(task);
- task = NULL;
}
XBT_INFO("I'm done. See you!");
return 0;
/** Main function */
int main(int argc, char *argv[])
{
- msg_error_t res = MSG_OK;
MSG_init(&argc, argv);
xbt_assert(argc > 2, "Usage: %s platform_file deployment_file\n"
"\tExample: %s msg_platform.xml msg_deployment.xml\n", argv[0], argv[0]);
- { /* Simulation setting */
- MSG_create_environment(argv[1]);
- }
- { /* Application deployment */
- MSG_function_register("master", master);
- MSG_function_register("worker", worker);
- MSG_launch_application(argv[2]);
- }
- res = MSG_main();
+
+ /* Create a simulated platform */
+ MSG_create_environment(argv[1]);
+
+ /* Application deployment */
+ MSG_function_register("master", master);
+ MSG_function_register("worker", worker);
+ MSG_launch_application(argv[2]);
+
+ /* Run the simulation */
+ msg_error_t res = MSG_main();
XBT_INFO("Simulation time %g", MSG_get_clock());
return (res != MSG_OK);