+/* Copyright (c) 2010. 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 <stdio.h>
+#include "msg/msg.h" /* Yeah! If you want to use msg, you need to include msg/msg.h */
+#include "surf/surfxml_parse.h" /* to override surf_parse and bypass the parser */
+
+/* Create a log channel to have nice outputs. */
+#include "xbt/log.h"
+#include "xbt/asserts.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 */
+
+MSG_error_t test_all(const char *platform_file);
+
+
+int master(int argc, char *argv[]);
+int slave(int argc, char *argv[]);
+
+typedef enum {
+ PORT_22 = 0,
+ MAX_CHANNEL
+} channel_t;
+
+/** Emitter function */
+int master(int argc, char *argv[])
+{
+ int slaves_count = 0;
+ m_host_t *slaves = NULL;
+ m_task_t *todo = NULL;
+ int number_of_tasks = 0;
+ double task_comp_size = 0;
+ double task_comm_size = 0;
+
+
+ int i;
+
+ xbt_assert1(sscanf(argv[1], "%d", &number_of_tasks),
+ "Invalid argument %s\n", argv[1]);
+ xbt_assert1(sscanf(argv[2], "%lg", &task_comp_size),
+ "Invalid argument %s\n", argv[2]);
+ xbt_assert1(sscanf(argv[3], "%lg", &task_comm_size),
+ "Invalid argument %s\n", argv[3]);
+
+ { /* Task creation */
+ char sprintf_buffer[64];
+
+ todo = xbt_new0(m_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);
+ }
+ }
+
+ { /* Process organisation */
+ slaves_count = argc - 4;
+ slaves = xbt_new0(m_host_t, slaves_count);
+
+ for (i = 4; i < argc; i++) {
+ slaves[i - 4] = MSG_get_host_by_name(argv[i]);
+ if (slaves[i - 4] == NULL) {
+ INFO1("Unknown host %s. Stopping Now! ", argv[i]);
+ abort();
+ }
+ }
+ }
+
+ INFO1("Got %d slave(s) :", slaves_count);
+ for (i = 0; i < slaves_count; i++)
+ INFO1("\t %s", slaves[i]->name);
+
+ INFO1("Got %d task to process :", number_of_tasks);
+
+ for (i = 0; i < number_of_tasks; i++)
+ INFO1("\t\"%s\"", todo[i]->name);
+
+ for (i = 0; i < number_of_tasks; i++) {
+ INFO2("Sending \"%s\" to \"%s\"",
+ todo[i]->name, slaves[i % slaves_count]->name);
+ if (MSG_host_self() == slaves[i % slaves_count]) {
+ INFO0("Hey ! It's me ! :)");
+ }
+ MSG_task_put(todo[i], slaves[i % slaves_count], PORT_22);
+ INFO0("Send completed");
+ }
+
+ INFO0
+ ("All tasks have been dispatched. Let's tell everybody the computation is over.");
+ for (i = 0; i < slaves_count; i++)
+ MSG_task_put(MSG_task_create("finalize", 0, 0, FINALIZE),
+ slaves[i], PORT_22);
+
+ INFO0("Goodbye now!");
+ free(slaves);
+ free(todo);
+ return 0;
+} /* end_of_master */
+
+/** Receiver function */
+int slave(int argc, char *argv[])
+{
+ INFO0("I'm a slave");
+ while (1) {
+ m_task_t task = NULL;
+ int a;
+ a = MSG_task_get(&(task), PORT_22);
+ if (a == MSG_OK) {
+ INFO1("Received \"%s\" ", MSG_task_get_name(task));
+ if (MSG_task_get_data(task) == FINALIZE) {
+ MSG_task_destroy(task);
+ break;
+ }
+ INFO1("Processing \"%s\" ", MSG_task_get_name(task));
+ MSG_task_execute(task);
+ INFO1("\"%s\" done ", MSG_task_get_name(task));
+ MSG_task_destroy(task);
+ } else {
+ INFO0("Hey ?! What's up ? ");
+ xbt_assert0(0, "Unexpected behavior");
+ }
+ }
+ INFO0("I'm done. See you!");
+ return 0;
+} /* end_of_slave */
+
+
+/** Bypass deployment **/
+static int bypass_deployment(void)
+{
+ int nb_host,i;
+ static int AX_ptr;
+ static int surfxml_bufferstack_size = 2048;
+ static int surfxml_buffer_stack_stack_ptr = 0;
+ static int surfxml_buffer_stack_stack[1024];
+ /* allocating memory to the buffer, I think 2MB should be enough */
+ surfxml_bufferstack = xbt_new0(char, surfxml_bufferstack_size);
+ nb_host = MSG_get_host_number();
+
+ /* <platform> */
+ SURFXML_BUFFER_SET(platform_version, "2");
+ SURFXML_START_TAG(platform);
+ DEBUG0("<platform version=\"2\">");
+
+ DEBUG0(" <process host=\"c-0.me\" function=\"master\">");
+ SURFXML_BUFFER_SET(process_host, "c-0.me");
+ SURFXML_BUFFER_SET(process_function, "master");
+ SURFXML_BUFFER_SET(process_start_time, "-1.0");
+ SURFXML_BUFFER_SET(process_kill_time, "-1.0");
+ SURFXML_START_TAG(process);
+
+ DEBUG1(" <argument value=\"%s\"/>",bprintf("%d",nb_host-1));
+ SURFXML_BUFFER_SET(argument_value, bprintf("%d",nb_host-1));
+ SURFXML_START_TAG(argument);
+ SURFXML_END_TAG(argument);
+
+ DEBUG0(" <argument value=\"5000000\"/>");
+ SURFXML_BUFFER_SET(argument_value, "5000000");
+ SURFXML_START_TAG(argument);
+ SURFXML_END_TAG(argument);
+
+ DEBUG0(" <argument value=\"100000\"/>");
+ SURFXML_BUFFER_SET(argument_value, "100000");
+ SURFXML_START_TAG(argument);
+ SURFXML_END_TAG(argument);
+
+ for(i=1 ; i<nb_host ; i++)
+ {
+ DEBUG1(" <argument value=\"%s.me\"/>",bprintf("c-%d",i));
+ SURFXML_BUFFER_SET(argument_value, bprintf("c-%d.me",i));
+ SURFXML_START_TAG(argument);
+ SURFXML_END_TAG(argument);
+ }
+ DEBUG0(" </process>");
+ SURFXML_END_TAG(process);
+
+ for(i=1 ; i<nb_host ; i++)
+ {
+ DEBUG1(" <process host=\"%s.me\" function=\"slave\"/>",bprintf("c-%d",i));
+ SURFXML_BUFFER_SET(process_host, bprintf("c-%d.me",i));
+ SURFXML_BUFFER_SET(process_function, "slave");
+ SURFXML_BUFFER_SET(process_start_time, "-1.0");
+ SURFXML_BUFFER_SET(process_kill_time, "-1.0");
+ SURFXML_START_TAG(process);
+ SURFXML_END_TAG(process);
+ }
+
+ DEBUG0("</platform>");
+ SURFXML_END_TAG(platform);
+
+ free(surfxml_bufferstack);
+ return 0;
+}
+
+/** Test function */
+MSG_error_t test_all(const char *platform_file)
+{
+ MSG_error_t res = MSG_OK;
+ MSG_set_channel_number(MAX_CHANNEL);
+ MSG_create_environment(platform_file);
+ MSG_function_register("master", master);
+ MSG_function_register("slave", slave);
+ surf_parse = bypass_deployment;
+ MSG_launch_application(NULL);
+
+ res = MSG_main();
+
+ INFO1("Simulation time %g", MSG_get_clock());
+ return res;
+} /* end_of_test_all */
+
+
+/** Main function */
+int main(int argc, char *argv[])
+{
+ MSG_error_t res = MSG_OK;
+
+ MSG_global_init(&argc, argv);
+ res = test_all(argv[1]);
+ MSG_clean();
+
+ if (res == MSG_OK)
+ return 0;
+ else
+ return 1;
+} /* end_of_main */
