1 /* Copyright (c) 2004-2022. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include <simgrid/s4u/VirtualMachine.hpp>
8 #include "src/surf/HostImpl.hpp"
10 #ifndef VM_INTERFACE_HPP_
11 #define VM_INTERFACE_HPP_
15 extern template class XBT_PUBLIC xbt::Extendable<kernel::resource::VirtualMachineImpl>;
24 class XBT_PUBLIC VirtualMachineImpl : public HostImpl, public xbt::Extendable<VirtualMachineImpl> {
26 friend s4u::VirtualMachine;
30 static std::deque<s4u::VirtualMachine*> allVms_;
32 explicit VirtualMachineImpl(const std::string& name, s4u::VirtualMachine* piface, s4u::Host* host, int core_amount,
36 void suspend(const actor::ActorImpl* issuer);
38 void shutdown(kernel::actor::ActorImpl* issuer);
41 /** @brief Change the physical host on which the given VM is running */
42 void set_physical_host(s4u::Host* dest);
43 /** @brief Get the physical host on which the given VM is running */
44 s4u::Host* get_physical_host() const { return physical_host_; }
46 size_t get_ramsize() const { return ramsize_; }
47 void set_ramsize(size_t ramsize) { ramsize_ = ramsize; }
49 s4u::VirtualMachine::State get_state() const { return vm_state_; }
50 void set_state(s4u::VirtualMachine::State state) { vm_state_ = state; }
52 unsigned int get_core_amount() const { return core_amount_; }
53 Action* get_action() const { return action_; }
55 const s4u::VirtualMachine* get_iface() const override { return piface_; }
56 s4u::VirtualMachine* get_iface() override { return piface_; }
58 void set_bound(double bound);
60 void update_action_weight();
62 void add_active_exec() { active_execs_++; }
63 void remove_active_exec() { active_execs_--; }
65 void start_migration();
67 bool is_migrating() const { return is_migrating_; }
71 s4u::VirtualMachine* piface_;
72 Action* action_ = nullptr;
73 unsigned int active_execs_ = 0;
74 s4u::Host* physical_host_;
75 unsigned int core_amount_;
76 double user_bound_ = std::numeric_limits<double>::max();
78 s4u::VirtualMachine::State vm_state_ = s4u::VirtualMachine::State::CREATED;
79 bool is_migrating_ = false;
85 /** @ingroup SURF_vm_interface
86 * @brief SURF VM model interface class
87 * @details A model is an object which handle the interactions between its Resources and its Actions
89 class XBT_PRIVATE VMModel : public HostModel {
91 explicit VMModel(const std::string& name);
93 double next_occurring_event(double now) override;
94 void update_actions_state(double /*now*/, double /*delta*/) override{};
95 Action* execute_thread(const s4u::Host* host, double flops_amount, int thread_count) override;
96 Action* execute_parallel(const std::vector<s4u::Host*>& host_list, const double* flops_amount,
97 const double* bytes_amount, double rate) override
102 } // namespace resource
103 } // namespace kernel
104 } // namespace simgrid
106 #endif /* VM_INTERFACE_HPP_ */