+++ /dev/null
-/* Copyright (c) 2007-2010, 2013-2015. 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"
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test, "Messages specific for this msg example");
-
-#define FINALIZE ((void*)221297) /* a magic number to tell people to stop working */
-
-static char * build_channel_name(char *buffer, const char *sender, const char* receiver)
-{
- strcpy(buffer, sender);
- strcat(buffer, ":");
- strcat(buffer, receiver);
- return buffer;
-}
-
-/** Worker function */
-static int master(int argc, char *argv[])
-{
- int workers_count = 0;
- XBT_ATTRIB_UNUSED int res;
- msg_host_t *workers = NULL;
- msg_task_t *todo = NULL;
- msg_host_t host_self = MSG_host_self();
- char *master_name = (char *) MSG_host_get_name(host_self);
- char channel[1024];
-
- int i;
-
- TRACE_category(master_name);
-
- double timeout = xbt_str_parse_double(argv[1], "Invalid timeout: %s"); /** - timeout */
- 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 */
-
- { /* Process organization */
- workers_count = MSG_get_host_number();
- workers = xbt_dynar_to_array(MSG_hosts_as_dynar());
-
- for (i = 0; i < workers_count; i++)
- if(host_self == workers[i]) {
- workers[i] = workers[workers_count-1];
- workers_count--;
- break;
- }
-
- for (i = 0; i < workers_count; i++)
- MSG_process_create("worker", worker, master_name, workers[i]);
- }
-
- XBT_INFO("Got %d workers and will send tasks for %g seconds!", workers_count, timeout);
- xbt_dynar_t idle_hosts = xbt_dynar_new(sizeof(msg_host_t), NULL);
- msg_host_t request_host = NULL;
-
- for (i = 0; 1;) {
- char sprintf_buffer[64];
- msg_task_t task = NULL;
-
- msg_task_t request = NULL;
- while(MSG_task_listen(master_name)) {
- res = MSG_task_receive(&(request),master_name);
- xbt_assert(res == MSG_OK, "MSG_task_receive failed");
- request_host = MSG_task_get_data(request);
- xbt_dynar_push(idle_hosts, &request_host);
- MSG_task_destroy(request);
- request = NULL;
- }
-
- if(MSG_get_clock()>timeout) {
- if(xbt_dynar_length(idle_hosts) == workers_count) break;
- else {
- MSG_process_sleep(.1);
- continue;
- }
- }
-
- if(xbt_dynar_length(idle_hosts)<=0) {
- /* No request. Let's wait... */
- MSG_process_sleep(.1);
- continue;
- }
-
- sprintf(sprintf_buffer, "Task_%d", i);
- task = MSG_task_create(sprintf_buffer, comp_size, comm_size, NULL);
- MSG_task_set_category(task, master_name);
-
- xbt_dynar_shift(idle_hosts, &request_host);
-
- build_channel_name(channel,master_name, MSG_host_get_name(request_host));
-
- XBT_DEBUG("Sending \"%s\" to channel \"%s\"", task->name, channel);
- MSG_task_send(task, channel);
- XBT_DEBUG("Sent");
- i++;
- }
-
- int task_num = i;
-
- XBT_DEBUG ("All tasks have been dispatched. Let's tell everybody the computation is over.");
- for (i = 0; i < workers_count; i++) {
- msg_task_t finalize = MSG_task_create("finalize", 0, 0, FINALIZE);
- MSG_task_send(finalize, build_channel_name(channel,master_name, MSG_host_get_name(workers[i % workers_count])));
- }
-
- XBT_INFO("Sent %d tasks in total!", task_num);
- free(workers);
- free(todo);
- return 0;
-} /* end_of_master */
-
-/** Worker function */
-static int worker(int argc, char *argv[])
-{
- msg_task_t task = NULL;
- XBT_ATTRIB_UNUSED int res;
- char channel[1024];
-
- const char *my_master = MSG_process_get_data(MSG_process_self());
- build_channel_name(channel, my_master, MSG_host_get_name(MSG_host_self()));
-
- XBT_DEBUG("Receiving on channel \"%s\"", channel);
-
- while (1) {
- /* Send a request */
- msg_task_t request = MSG_task_create("request", 0, 0, MSG_host_self());
- MSG_task_send(request, my_master);
-
- res = MSG_task_receive(&(task),channel);
- xbt_assert(res == MSG_OK, "MSG_task_receive failed");
-
- XBT_DEBUG("Received \"%s\"", MSG_task_get_name(task));
- if (!strcmp(MSG_task_get_name(task), "finalize")) {
- MSG_task_destroy(task);
- break;
- }
-
- XBT_DEBUG("Processing \"%s\"", MSG_task_get_name(task));
- MSG_task_execute(task);
- XBT_DEBUG("\"%s\" done", MSG_task_get_name(task));
- MSG_task_destroy(task);
- task = NULL;
- }
- XBT_DEBUG("I'm done. See you!");
- return 0;
-} /* end_of_worker */
-
-/** 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();
-
- XBT_INFO("Simulation time %g", MSG_get_clock());
- return (res != MSG_OK);
-} /* end_of_main */
