simgrid::s4u::Host* pm1 = simgrid::s4u::Host::by_name("Tremblay");
simgrid::s4u::VirtualMachine* vm0 = new simgrid::s4u::VirtualMachine("VM0", pm0, 1);
simgrid::s4u::Host* pm1 = simgrid::s4u::Host::by_name("Tremblay");
simgrid::s4u::VirtualMachine* vm0 = new simgrid::s4u::VirtualMachine("VM0", pm0, 1);