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/* Copyright (c) 2007-2025. 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. */
import org.simgrid.s4u.*;
class MigrationManager extends Actor {
VirtualMachine vm;
Host dstPM;
MigrationManager(VirtualMachine vm, Host dstPM)
{
this.vm = vm;
this.dstPM = dstPM;
}
public void run()
{
Host src_pm = vm.get_pm();
double migStart = Engine.get_clock();
vm.migrate(dstPM);
double migEnd = Engine.get_clock();
Engine.info("%s migrated: %s->%s in %g s", vm.get_name(), src_pm.get_name(), dstPM.get_name(), migEnd - migStart);
}
}
class Main extends Actor {
public void run()
{
Engine e = this.get_engine();
Host pm0 = e.host_by_name("Fafard");
Host pm1 = e.host_by_name("Tremblay");
Host pm2 = e.host_by_name("Bourassa");
VirtualMachine vm0 = pm0.create_vm("VM0", 1);
vm0.set_ramsize(1e9); // 1Gbytes
vm0.start();
Engine.info("Test: Migrate a VM with %d Mbytes RAM", vm0.get_ramsize() / 1000 / 1000);
Host.current().add_actor("MigMgr", new MigrationManager(vm0, pm1)).join();
vm0.destroy();
vm0 = pm0.create_vm("VM0", 1);
vm0.set_ramsize(1e8); // 100Mbytes
vm0.start();
Engine.info("Test: Migrate a VM with %d Mbytes RAM", vm0.get_ramsize() / 1000 / 1000);
Host.current().add_actor("MigMgr", new MigrationManager(vm0, pm1)).join();
vm0.destroy();
vm0 = pm0.create_vm("VM0", 1);
VirtualMachine vm1 = pm0.create_vm("VM1", 1);
vm0.set_ramsize(1e9); // 1Gbytes
vm1.set_ramsize(1e9); // 1Gbytes
vm0.start();
vm1.start();
Engine.info("Test: Migrate two VMs at once from PM0 to PM1");
Host.current().add_actor("MigMgr", new MigrationManager(vm0, pm1));
Host.current().add_actor("MigMgr", new MigrationManager(vm1, pm1));
this.sleep_for(10000);
vm0.destroy();
vm1.destroy();
vm0 = pm0.create_vm("VM0", 1);
vm1 = pm0.create_vm("VM1", 1);
vm0.set_ramsize(1e9); // 1Gbytes
vm1.set_ramsize(1e9); // 1Gbytes
vm0.start();
vm1.start();
Engine.info("Test: Migrate two VMs at once to different PMs");
Host.current().add_actor("MigMgr", new MigrationManager(vm0, pm1));
Host.current().add_actor("MigMgr", new MigrationManager(vm1, pm2));
this.sleep_for(10000);
vm0.destroy();
vm1.destroy();
}
}
public class cloud_migration {
public static void main(String[] args)
{
Engine e = new Engine(args);
e.plugin_vm_live_migration_init();
e.load_platform(args[0]);
e.host_by_name("Fafard").add_actor("Main", new Main());
e.run();
Engine.info("Simulation ends.");
// The following call is useless in your code, but our continuous integration uses it to track memleaks
e.force_garbage_collection();
}
}
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