+++ /dev/null
-/* Copyright (c) 2007-2018. 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/s4u.hpp"
-#include "simgrid/plugins/live_migration.h"
-#include "simgrid/s4u/VirtualMachine.hpp"
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
-
-static void worker(double computation_amount, bool use_bound, double bound)
-{
- double clock_start = simgrid::s4u::Engine::get_clock();
-
- simgrid::s4u::ExecPtr exec = simgrid::s4u::this_actor::exec_init(computation_amount);
-
- if (use_bound) {
- if (bound < 1e-12) /* close enough to 0 without any floating precision surprise */
- XBT_INFO("bound == 0 means no capping (i.e., unlimited).");
- exec->set_bound(bound);
- }
- exec->start();
- exec->wait();
- double clock_end = simgrid::s4u::Engine::get_clock();
- double duration = clock_end - clock_start;
- double flops_per_sec = computation_amount / duration;
-
- if (use_bound)
- XBT_INFO("bound to %f => duration %f (%f flops/s)", bound, duration, flops_per_sec);
- else
- XBT_INFO("not bound => duration %f (%f flops/s)", duration, flops_per_sec);
-}
-
-#define DOUBLE_MAX 1e11
-static void worker_busy_loop(const char* name, double speed)
-{
- simgrid::s4u::ExecPtr exec = simgrid::s4u::this_actor::exec_async(DOUBLE_MAX);
- double exec_remain_prev = DOUBLE_MAX;
- for (int i = 0; i < 10; i++) {
- if (speed > 0) {
- double new_bound = (speed / 10) * i;
- XBT_INFO("set bound of VM1 to %f", new_bound);
- static_cast<simgrid::s4u::VirtualMachine*>(simgrid::s4u::this_actor::get_host())->set_bound(new_bound);
- }
- simgrid::s4u::this_actor::sleep_for(100);
- double exec_remain_now = exec->get_remaining();
- double flops_per_sec = exec_remain_prev - exec_remain_now;
- XBT_INFO("%s@%s: %.0f flops/s", name, simgrid::s4u::this_actor::get_host()->get_cname(), flops_per_sec / 100);
- exec_remain_prev = exec_remain_now;
- simgrid::s4u::this_actor::sleep_for(1);
- }
- exec->wait();
-}
-
-static void test_dynamic_change()
-{
- simgrid::s4u::Host* pm0 = simgrid::s4u::Host::by_name("Fafard");
-
- simgrid::s4u::VirtualMachine* vm0 = new simgrid::s4u::VirtualMachine("VM0", pm0, 1);
- simgrid::s4u::VirtualMachine* vm1 = new simgrid::s4u::VirtualMachine("VM1", pm0, 1);
- vm0->start();
- vm1->start();
-
- simgrid::s4u::Actor::create("worker0", vm0, worker_busy_loop, "Task0", -1);
- simgrid::s4u::Actor::create("worker1", vm1, worker_busy_loop, "Task1", pm0->get_speed());
-
- simgrid::s4u::this_actor::sleep_for(3000); // let the tasks end
- vm0->destroy();
- vm1->destroy();
-}
-
-static void test_one_task(simgrid::s4u::Host* host)
-{
- const double cpu_speed = host->get_speed();
- const double computation_amount = cpu_speed * 10;
-
- XBT_INFO("### Test: with/without task set_bound");
-
- XBT_INFO("### Test: no bound for Task1@%s", host->get_cname());
- simgrid::s4u::Actor::create("worker0", host, worker, computation_amount, false, 0);
-
- simgrid::s4u::this_actor::sleep_for(1000);
-
- XBT_INFO("### Test: 50%% for Task1@%s", host->get_cname());
- simgrid::s4u::Actor::create("worker0", host, worker, computation_amount, true, cpu_speed / 2);
-
- simgrid::s4u::this_actor::sleep_for(1000);
-
- XBT_INFO("### Test: 33%% for Task1@%s", host->get_cname());
- simgrid::s4u::Actor::create("worker0", host, worker, computation_amount, true, cpu_speed / 3);
-
- simgrid::s4u::this_actor::sleep_for(1000);
-
- XBT_INFO("### Test: zero for Task1@%s (i.e., unlimited)", host->get_cname());
- simgrid::s4u::Actor::create("worker0", host, worker, computation_amount, true, 0);
-
- simgrid::s4u::this_actor::sleep_for(1000);
-
- XBT_INFO("### Test: 200%% for Task1@%s (i.e., meaningless)", host->get_cname());
- simgrid::s4u::Actor::create("worker0", host, worker, computation_amount, true, cpu_speed * 2);
-
- simgrid::s4u::this_actor::sleep_for(1000);
-}
-
-static void test_two_tasks(simgrid::s4u::Host* hostA, simgrid::s4u::Host* hostB)
-{
- const double cpu_speed = hostA->get_speed();
- xbt_assert(cpu_speed == hostB->get_speed());
- const double computation_amount = cpu_speed * 10;
- const char* hostA_name = hostA->get_cname();
- const char* hostB_name = hostB->get_cname();
-
- XBT_INFO("### Test: no bound for Task1@%s, no bound for Task2@%s", hostA_name, hostB_name);
- simgrid::s4u::Actor::create("worker0", hostA, worker, computation_amount, false, 0);
- simgrid::s4u::Actor::create("worker1", hostB, worker, computation_amount, false, 0);
-
- simgrid::s4u::this_actor::sleep_for(1000);
-
- XBT_INFO("### Test: 0 for Task1@%s, 0 for Task2@%s (i.e., unlimited)", hostA_name, hostB_name);
- simgrid::s4u::Actor::create("worker0", hostA, worker, computation_amount, true, 0);
- simgrid::s4u::Actor::create("worker1", hostB, worker, computation_amount, true, 0);
-
- simgrid::s4u::this_actor::sleep_for(1000);
-
- XBT_INFO("### Test: 50%% for Task1@%s, 50%% for Task2@%s", hostA_name, hostB_name);
- simgrid::s4u::Actor::create("worker0", hostA, worker, computation_amount, true, cpu_speed / 2);
- simgrid::s4u::Actor::create("worker1", hostB, worker, computation_amount, true, cpu_speed / 2);
-
- simgrid::s4u::this_actor::sleep_for(1000);
-
- XBT_INFO("### Test: 25%% for Task1@%s, 25%% for Task2@%s", hostA_name, hostB_name);
- simgrid::s4u::Actor::create("worker0", hostA, worker, computation_amount, true, cpu_speed / 4);
- simgrid::s4u::Actor::create("worker1", hostB, worker, computation_amount, true, cpu_speed / 4);
-
- simgrid::s4u::this_actor::sleep_for(1000);
-
- XBT_INFO("### Test: 75%% for Task1@%s, 100%% for Task2@%s", hostA_name, hostB_name);
- simgrid::s4u::Actor::create("worker0", hostA, worker, computation_amount, true, cpu_speed * 0.75);
- simgrid::s4u::Actor::create("worker1", hostB, worker, computation_amount, true, cpu_speed);
-
- simgrid::s4u::this_actor::sleep_for(1000);
-
- XBT_INFO("### Test: no bound for Task1@%s, 25%% for Task2@%s", hostA_name, hostB_name);
- simgrid::s4u::Actor::create("worker0", hostA, worker, computation_amount, false, 0);
- simgrid::s4u::Actor::create("worker1", hostB, worker, computation_amount, true, cpu_speed / 4);
-
- simgrid::s4u::this_actor::sleep_for(1000);
-
- XBT_INFO("### Test: 75%% for Task1@%s, 25%% for Task2@%s", hostA_name, hostB_name);
- simgrid::s4u::Actor::create("worker0", hostA, worker, computation_amount, true, cpu_speed * 0.75);
- simgrid::s4u::Actor::create("worker1", hostB, worker, computation_amount, true, cpu_speed / 4);
-
- simgrid::s4u::this_actor::sleep_for(1000);
-}
-
-static void master_main()
-{
- simgrid::s4u::Host* pm0 = simgrid::s4u::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(" ");
-
- simgrid::s4u::VirtualMachine* vm0 = new simgrid::s4u::VirtualMachine("VM0", pm0, 1);
- vm0->start();
-
- 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(" ");
-
- vm0->destroy();
-
- vm0 = new simgrid::s4u::VirtualMachine("VM0", pm0, 1);
- vm0->start();
-
- XBT_INFO("# 6. Put a task on a PM and a task on a VM.");
- test_two_tasks(pm0, vm0);
- XBT_INFO(" ");
-
- vm0->destroy();
-
- vm0 = new simgrid::s4u::VirtualMachine("VM0", pm0, 1);
- vm0->set_bound(pm0->get_speed() / 10);
- vm0->start();
-
- 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(" ");
-
- vm0->destroy();
-
- vm0 = new simgrid::s4u::VirtualMachine("VM0", pm0, 1);
- vm0->set_ramsize(1e9); // 1GB
- vm0->start();
-
- double cpu_speed = pm0->get_speed();
-
- 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.");
- simgrid::s4u::Actor::create("worker0", vm0, worker, computation_amount, false, 0);
- simgrid::s4u::this_actor::sleep_for(1000);
- XBT_INFO(" ");
-
- XBT_INFO("# 10. (b) set 10%% bound to the VM, and then put a task on the VM.");
- vm0->set_bound(cpu_speed / 10);
- simgrid::s4u::Actor::create("worker0", vm0, worker, computation_amount, false, 0);
- simgrid::s4u::this_actor::sleep_for(1000);
- XBT_INFO(" ");
-
- XBT_INFO("# 10. (c) migrate");
- simgrid::s4u::Host* pm1 = simgrid::s4u::Host::by_name("Fafard");
- MSG_vm_migrate(vm0, pm1);
- XBT_INFO(" ");
-
- XBT_INFO("# 10. (d) Put a task again on the VM.");
- simgrid::s4u::Actor::create("worker0", vm0, worker, computation_amount, false, 0);
- simgrid::s4u::this_actor::sleep_for(1000);
- XBT_INFO(" ");
-
- vm0->destroy();
-
- XBT_INFO("# 11. Change a bound dynamically.");
- test_dynamic_change();
-}
-
-int main(int argc, char* argv[])
-{
- simgrid::s4u::Engine e(&argc, argv);
- sg_vm_live_migration_plugin_init();
- /* load the platform file */
- xbt_assert(argc == 2, "Usage: %s platform_file\n\tExample: %s ../platforms/small_platform.xml\n", argv[0], argv[0]);
-
- e.load_platform(argv[1]);
-
- simgrid::s4u::Actor::create("master_", simgrid::s4u::Host::by_name("Fafard"), master_main);
-
- e.run();
- XBT_INFO("Bye (simulation time %g)", simgrid::s4u::Engine::get_clock());
-
- return 0;
-}
