+/* Copyright (c) 2007-2012. 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 <sys/time.h>
+#include "msg/msg.h"
+#include "xbt/sysdep.h" /* calloc, printf */
+
+/* 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");
+
+/*
+ * Usage:
+ * ./examples/msg/cloud/scale ../examples/platforms/g5k.xml
+ *
+ * 1. valgrind --tool=callgrind ./examples/msg/cloud/scale ../examples/platforms/g5k.xml
+ * 2. kcachegrind
+ **/
+
+static double time_precise(void)
+{
+ struct timeval tv;
+ int ret = gettimeofday(&tv, NULL);
+ if (ret < 0)
+ xbt_die("gettimeofday");
+
+ double now = (double) tv.tv_sec + tv.tv_usec * 0.001 * 0.001;
+
+ return now;
+}
+
+static int computation_fun(int argc, char *argv[])
+{
+ for (;;) {
+ // double clock_sta = time_precise();
+
+ msg_task_t task = MSG_task_create("Task", 10000000, 0, NULL);
+ MSG_task_execute(task);
+ MSG_task_destroy(task);
+
+ // double clock_end = time_precise();
+
+ // XBT_INFO("%f", clock_end - clock_sta);
+ }
+
+
+ return 0;
+}
+
+static void launch_computation_worker(msg_host_t host)
+{
+ MSG_process_create("compute", computation_fun, NULL, host);
+}
+
+#if 0
+struct task_priv {
+ msg_host_t tx_host;
+ msg_process_t tx_proc;
+ double clock_sta;
+};
+
+static int communication_tx_fun(int argc, char *argv[])
+{
+ xbt_assert(argc == 2);
+ const char *mbox = argv[1];
+
+ msg_task_t task = MSG_task_create("Task", 1000000, 1000000, NULL);
+
+ struct task_priv *priv = xbt_new(struct task_priv, 1);
+ priv->tx_proc = MSG_process_self();
+ priv->tx_host = MSG_host_self();
+ priv->clock_sta = MSG_get_clock();
+
+ MSG_task_set_data(task, priv);
+
+ MSG_task_send(task, mbox);
+
+ return 0;
+}
+
+static int communication_rx_fun(int argc, char *argv[])
+{
+ const char *pr_name = MSG_process_get_name(MSG_process_self());
+ const char *host_name = MSG_host_get_name(MSG_host_self());
+ xbt_assert(argc == 2);
+ const char *mbox = argv[1];
+
+ msg_task_t task = NULL;
+ MSG_task_recv(&task, mbox);
+
+ struct task_priv *priv = MSG_task_get_data(task);
+ double clock_end = MSG_get_clock();
+
+ XBT_INFO("%s:%s to %s:%s => %g sec",
+ MSG_host_get_name(priv->tx_host),
+ MSG_process_get_name(priv->tx_proc),
+ host_name, pr_name, clock_end - priv->clock_sta);
+
+ MSG_task_destroy(task);
+
+ return 0;
+}
+
+static void launch_communication_worker(msg_host_t tx_host, msg_host_t rx_host)
+{
+ char *mbox = bprintf("MBOX:%s-%s",
+ MSG_host_get_name(tx_host),
+ MSG_host_get_name(rx_host));
+ char **argv = NULL;
+
+ const char *pr_name_tx = "comm_tx";
+ argv = xbt_new(char *, 3);
+ argv[0] = xbt_strdup(pr_name_tx);
+ argv[1] = xbt_strdup(mbox);
+ argv[2] = NULL;
+
+ MSG_process_create_with_arguments(pr_name_tx, communication_tx_fun, NULL, tx_host, 2, argv);
+
+ const char *pr_name_rx = "comm_rx";
+ argv = xbt_new(char *, 3);
+ argv[0] = xbt_strdup(pr_name_rx);
+ argv[1] = xbt_strdup(mbox);
+ argv[2] = NULL;
+
+ MSG_process_create_with_arguments(pr_name_rx, communication_rx_fun, NULL, rx_host, 2, argv);
+
+ xbt_free(mbox);
+}
+#endif
+
+
+
+
+
+
+static int master_main(int argc, char *argv[])
+{
+ xbt_dynar_t hosts_dynar = MSG_hosts_as_dynar();
+
+ int npm = 10;
+ int nvm = 1000;
+
+ msg_host_t *pm = xbt_new(msg_host_t, npm);
+ msg_vm_t *vm = xbt_new(msg_vm_t, nvm);
+
+ int i = 0;
+ for (i = 0; i < npm; i++) {
+ pm[i] = xbt_dynar_get_as(hosts_dynar, i, msg_host_t);
+ }
+
+ for (i = 0; i < nvm; i++) {
+ int pm_index = i % npm;
+ char *vm_name = bprintf("vm%d", i);
+ vm[i] = MSG_vm_create_core(pm[pm_index], vm_name);
+ MSG_vm_start(vm[i]);
+
+ launch_computation_worker(vm[i]);
+
+ xbt_free(vm_name);
+ }
+
+
+ XBT_INFO("## Test (start)");
+
+ for (i = 0; i < 10; i++) {
+ double clock_sta = time_precise();
+ MSG_process_sleep(1);
+ double clock_end = time_precise();
+ XBT_INFO("duration %f", clock_end - clock_sta);
+ }
+
+
+ for (i = 0; i < nvm; i++) {
+ MSG_vm_destroy(vm[i]);
+ }
+
+ XBT_INFO("## Test (ended)");
+
+ return 0;
+}
+
+static void launch_master(msg_host_t host)
+{
+ const char *pr_name = "master_";
+ char **argv = xbt_new(char *, 2);
+ argv[0] = xbt_strdup(pr_name);
+ argv[1] = NULL;
+
+ MSG_process_create_with_arguments(pr_name, master_main, NULL, host, 1, argv);
+}
+
+
+int main(int argc, char *argv[])
+{
+ /* Get the arguments */
+ MSG_init(&argc, argv);
+
+ /* load the platform file */
+ xbt_assert(argc == 2);
+ MSG_create_environment(argv[1]);
+
+ xbt_dynar_t hosts_dynar = MSG_hosts_as_dynar();
+ msg_host_t pm0 = xbt_dynar_get_as(hosts_dynar, 0, msg_host_t);
+ launch_master(pm0);
+
+ int res = MSG_main();
+ XBT_INFO("Bye (simulation time %g)", MSG_get_clock());
+
+
+ return !(res == MSG_OK);
+}
