X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a4cd8aafa1caf358f873f87b142f76185acf1901..b4b78f6684f68475ec9c7b63af21f733ff04a435:/examples/msg/cloud/bound.c

diff --git a/examples/msg/cloud/bound.c b/examples/msg/cloud/bound.c
index 475c5358aa..ee5fc4971a 100644
--- a/examples/msg/cloud/bound.c
+++ b/examples/msg/cloud/bound.c
@@ -1,4 +1,5 @@
-/* Copyright (c) 2007-2013. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2014. 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. */
@@ -53,38 +54,27 @@ static void launch_worker(msg_host_t host, const char *pr_name, double computati
 {
   char **argv = xbt_new(char *, 5);
   argv[0] = xbt_strdup(pr_name);
-  argv[1] = bprintf("%lf", computation_amount);
+  argv[1] = bprintf("%f", computation_amount);
   argv[2] = bprintf("%d", use_bound);
-  argv[3] = bprintf("%lf", bound);
+  argv[3] = bprintf("%f", bound);
   argv[4] = NULL;
 
   MSG_process_create_with_arguments(pr_name, worker_main, NULL, host, 4, argv);
 }
 
-#if 0
-static int worker_busy_loop_main(int argc, char *argv[])
-{
-  double clock_sta = MSG_get_clock();
 
-  msg_task_t task = MSG_task_create("Task", 100, 0, NULL);
-  MSG_task_execute(task);
-  MSG_task_destroy(task);
 
-  double clock_sta = MSG_get_clock();
+static int worker_busy_loop_main(int argc, char *argv[])
+{
+  msg_task_t *task = MSG_process_get_data(MSG_process_self());
+  for (;;)
+    MSG_task_execute(*task);
 
   return 0;
 }
 
-
-static msg_process_t launch_busy_loop_worker(msg_host_t host, const char *pr_name)
-{
-  char **argv = xbt_new(char *, 2);
-  argv[0] = xbt_strdup(pr_name);
-  argv[1] = NULL;
-
-  msg_process_t pr = MSG_process_create_with_arguments(pr_name, worker_busy_loop_main, NULL, host, 1, argv);
-  return pr;
-}
+/* FIXME: */
+#define DOUBLE_MAX 1e11
 
 static void test_dynamic_change(void)
 {
@@ -95,9 +85,45 @@ static void test_dynamic_change(void)
   msg_host_t vm1 = MSG_vm_create_core(pm0, "VM1");
   MSG_vm_start(vm0);
   MSG_vm_start(vm1);
-#endif
 
+  msg_task_t task0 = MSG_task_create("Task0", DOUBLE_MAX, 0, NULL);
+  msg_task_t task1 = MSG_task_create("Task1", DOUBLE_MAX, 0, NULL);
+  msg_process_t pr0 = MSG_process_create("worker0", worker_busy_loop_main, &task0, vm0);
+  msg_process_t pr1 = MSG_process_create("worker1", worker_busy_loop_main, &task1, vm1);
+
+
+  double task0_remain_prev = MSG_task_get_remaining_computation(task0);
+  double task1_remain_prev = MSG_task_get_remaining_computation(task1);
+
+  {
+    const double cpu_speed = MSG_get_host_speed(pm0);
+    int i = 0;
+    for (i = 0; i < 10; i++) {
+      double new_bound = (cpu_speed / 10) * i;
+      XBT_INFO("set bound of VM1 to %f", new_bound);
+      MSG_vm_set_bound(vm1, new_bound);
+      MSG_process_sleep(100);
+
+      double task0_remain_now = MSG_task_get_remaining_computation(task0);
+      double task1_remain_now = MSG_task_get_remaining_computation(task1);
+
+      double task0_flops_per_sec = task0_remain_prev - task0_remain_now;
+      double task1_flops_per_sec = task1_remain_prev - task1_remain_now;
+
+      XBT_INFO("Task0@VM0: %f flops/s", task0_flops_per_sec / 100);
+      XBT_INFO("Task1@VM1: %f flops/s", task1_flops_per_sec / 100);
+
+      task0_remain_prev = task0_remain_now;
+      task1_remain_prev = task1_remain_now;
+    }
+  }
+
+  MSG_process_kill(pr0);
+  MSG_process_kill(pr1);
   
+  MSG_vm_destroy(vm0);
+  MSG_vm_destroy(vm1);
+}
 
 
 
@@ -248,6 +274,7 @@ static int master_main(int argc, char *argv[])
 {
   xbt_dynar_t hosts_dynar = MSG_hosts_as_dynar();
   msg_host_t pm0 = xbt_dynar_get_as(hosts_dynar, 0, msg_host_t);
+  msg_host_t pm1 = xbt_dynar_get_as(hosts_dynar, 0, msg_host_t);
 
 
   {
@@ -314,6 +341,48 @@ static int master_main(int argc, char *argv[])
   }
 
 
+  {
+    msg_host_t vm0 = MSG_vm_create_core(pm0, "VM0");
+
+    s_ws_params_t params;
+    memset(&params, 0, sizeof(params));
+    params.ramsize = 1L * 1000 * 1000 * 1000; // 1Gbytes
+    MSG_host_set_params(vm0, &params);
+    MSG_vm_start(vm0);
+
+    const double cpu_speed = MSG_get_host_speed(pm0);
+    MSG_vm_start(vm0);
+
+    XBT_INFO("# 10. Test migration");
+    const double computation_amount = cpu_speed * 10;
+
+    XBT_INFO("# 10. (a) Put a task on a VM without any bound.");
+    launch_worker(vm0, "worker0", computation_amount, 0, 0);
+    MSG_process_sleep(1000);
+    XBT_INFO(" ");
+
+    XBT_INFO("# 10. (b) set 10%% bound to the VM, and then put a task on the VM.");
+    MSG_vm_set_bound(vm0, cpu_speed / 10);
+    launch_worker(vm0, "worker0", computation_amount, 0, 0);
+    MSG_process_sleep(1000);
+    XBT_INFO(" ");
+
+    XBT_INFO("# 10. (c) migrate");
+    MSG_vm_migrate(vm0, pm1);
+    XBT_INFO(" ");
+
+    XBT_INFO("# 10. (d) Put a task again on the VM.");
+    launch_worker(vm0, "worker0", computation_amount, 0, 0);
+    MSG_process_sleep(1000);
+    XBT_INFO(" ");
+
+    MSG_vm_destroy(vm0);
+  }
+
+
+  XBT_INFO("# 11. Change a bound dynamically.");
+  test_dynamic_change();
+
   return 0;
 }
 
@@ -333,7 +402,11 @@ int main(int argc, char *argv[])
   MSG_init(&argc, argv);
 
   /* load the platform file */
-  xbt_assert(argc == 2);
+  if (argc != 2) {
+    printf("Usage: %s example/msg/cloud/simple_plat.xml\n", argv[0]);
+    return 1;
+  }
+
   MSG_create_environment(argv[1]);
 
   xbt_dynar_t hosts_dynar = MSG_hosts_as_dynar();