C++ (Cpp) MSG_vm_set_bound Examples

Example #1

File: cloud-capping.c Project: fabienchaix/simgrid

static void test_dynamic_change(void)
{
  msg_host_t pm0 = MSG_host_by_name("Fafard");

  msg_host_t vm0 = MSG_vm_create_core(pm0, "VM0");
  msg_host_t vm1 = MSG_vm_create_core(pm0, "VM1");
  MSG_vm_start(vm0);
  MSG_vm_start(vm1);

  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_create("worker0", worker_busy_loop_main, &task0, vm0);
  MSG_process_create("worker1", worker_busy_loop_main, &task1, vm1);

  double task0_remain_prev = MSG_task_get_flops_amount(task0);
  double task1_remain_prev = MSG_task_get_flops_amount(task1);

  const double cpu_speed = MSG_host_get_speed(pm0);
  for (int 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_flops_amount(task0);
    double task1_remain_now = MSG_task_get_flops_amount(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_sleep(2000); // let the tasks end

  MSG_vm_destroy(vm0);
  MSG_vm_destroy(vm1);
}

Example #2

File: cloud-capping.c Project: fabienchaix/simgrid

static int master_main(int argc, char *argv[])
{
  msg_host_t pm0 = MSG_host_by_name("Fafard");
  msg_host_t pm1 = MSG_host_by_name("Fafard");

  XBT_INFO("# 1. Put a single task on a PM. ");
  test_one_task(pm0);
  XBT_INFO(" ");

  XBT_INFO("# 2. Put two tasks on a PM.");
  test_two_tasks(pm0, pm0);
  XBT_INFO(" ");

  msg_host_t vm0 = MSG_vm_create_core(pm0, "VM0");
  MSG_vm_start(vm0);

  XBT_INFO("# 3. Put a single task on a VM. ");
  test_one_task(vm0);
  XBT_INFO(" ");

  XBT_INFO("# 4. Put two tasks on a VM.");
  test_two_tasks(vm0, vm0);
  XBT_INFO(" ");

  MSG_vm_destroy(vm0);

  vm0 = MSG_vm_create_core(pm0, "VM0");
  MSG_vm_start(vm0);

  XBT_INFO("# 6. Put a task on a PM and a task on a VM.");
  test_two_tasks(pm0, vm0);
  XBT_INFO(" ");

  MSG_vm_destroy(vm0);

  vm0 = MSG_vm_create_core(pm0, "VM0");
  double cpu_speed = MSG_host_get_speed(pm0);
  MSG_vm_set_bound(vm0, cpu_speed / 10);
  MSG_vm_start(vm0);

  XBT_INFO("# 7. Put a single task on the VM capped by 10%%.");
  test_one_task(vm0);
  XBT_INFO(" ");

  XBT_INFO("# 8. Put two tasks on the VM capped by 10%%.");
  test_two_tasks(vm0, vm0);
  XBT_INFO(" ");

  XBT_INFO("# 9. Put a task on a PM and a task on the VM capped by 10%%.");
  test_two_tasks(pm0, vm0);
  XBT_INFO(" ");

  MSG_vm_destroy(vm0);

  vm0 = MSG_vm_create_core(pm0, "VM0");

  s_vm_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);

  cpu_speed = MSG_host_get_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;
}

Example #3

JNIEXPORT void JNICALL Java_org_simgrid_msg_VM_setBound(JNIEnv *env, jobject jvm, jdouble bound)
{
  msg_vm_t vm = jvm_get_native(env,jvm);
  MSG_vm_set_bound(vm, bound);
}