X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/078b9d03609d4f0072a2d968f792bbdd9a1fe08d..52f9f1a9b04f0ebdc5b15c940782d1d084d3c444:/src/plugins/vm/VirtualMachineImpl.cpp diff --git a/src/plugins/vm/VirtualMachineImpl.cpp b/src/plugins/vm/VirtualMachineImpl.cpp index e499ff03d7..2d49014311 100644 --- a/src/plugins/vm/VirtualMachineImpl.cpp +++ b/src/plugins/vm/VirtualMachineImpl.cpp @@ -1,25 +1,43 @@ -/* Copyright (c) 2013-2019. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2013-2021. 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 "src/plugins/vm/VirtualMachineImpl.hpp" #include "simgrid/Exception.hpp" +#include "simgrid/kernel/routing/NetZoneImpl.hpp" +#include "simgrid/s4u/Engine.hpp" #include "simgrid/s4u/Exec.hpp" +#include "simgrid/sg_config.hpp" #include "src/include/surf/surf.hpp" +#include "src/kernel/EngineImpl.hpp" #include "src/kernel/activity/ExecImpl.hpp" +#include "src/surf/cpu_cas01.hpp" +#include "src/surf/cpu_ti.hpp" -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_vm, surf, "Logging specific to the SURF VM module"); +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(res_vm, ker_resource, "Virtual Machines, containing actors and mobile across hosts"); -simgrid::vm::VMModel* surf_vm_model = nullptr; - -void surf_vm_model_init_HL13() +void surf_vm_model_init_HL13(simgrid::kernel::resource::CpuModel* cpu_pm_model) { - if (surf_cpu_model_vm != nullptr) - surf_vm_model = new simgrid::vm::VMModel(); + auto vm_model = std::make_shared("VM_HL13"); + + simgrid::kernel::EngineImpl::get_instance()->add_model(vm_model, {cpu_pm_model}); + std::shared_ptr cpu_model_vm; + + auto cpu_optim = simgrid::config::get_value("cpu/optim"); + if (cpu_optim == "TI") { + cpu_model_vm = std::make_shared("VmCpu_TI"); + } else { + cpu_model_vm = std::make_shared("VmCpu_Cas01"); + } + simgrid::kernel::EngineImpl::get_instance()->add_model(cpu_model_vm, {cpu_pm_model, vm_model.get()}); + simgrid::s4u::Engine::get_instance()->get_netzone_root()->get_impl()->set_cpu_vm_model(cpu_model_vm); } namespace simgrid { + +template class xbt::Extendable; + namespace vm { /************* * Callbacks * @@ -52,22 +70,22 @@ static void host_state_change(s4u::Host const& host) } } -static void add_active_exec(s4u::Actor const&, s4u::Exec const& task) +static void add_active_exec(s4u::Exec const& task) { - s4u::VirtualMachine* vm = dynamic_cast(task.get_host()); + const s4u::VirtualMachine* vm = dynamic_cast(task.get_host()); if (vm != nullptr) { VirtualMachineImpl* vm_impl = vm->get_impl(); - vm_impl->active_tasks_ = vm_impl->active_tasks_ + 1; + vm_impl->add_active_exec(); vm_impl->update_action_weight(); } } -static void remove_active_exec(s4u::Actor const&, s4u::Exec const& task) +static void remove_active_exec(s4u::Exec const& task) { - s4u::VirtualMachine* vm = dynamic_cast(task.get_host()); + const s4u::VirtualMachine* vm = dynamic_cast(task.get_host()); if (vm != nullptr) { VirtualMachineImpl* vm_impl = vm->get_impl(); - vm_impl->active_tasks_ = vm_impl->active_tasks_ - 1; + vm_impl->remove_active_exec(); vm_impl->update_action_weight(); } } @@ -80,27 +98,26 @@ static s4u::VirtualMachine* get_vm_from_activity(kernel::activity::ActivityImpl static void add_active_activity(kernel::activity::ActivityImpl const& act) { - s4u::VirtualMachine* vm = get_vm_from_activity(act); + const s4u::VirtualMachine* vm = get_vm_from_activity(act); if (vm != nullptr) { - VirtualMachineImpl *vm_impl = vm->get_impl(); - vm_impl->active_tasks_ = vm_impl->active_tasks_ + 1; + VirtualMachineImpl* vm_impl = vm->get_impl(); + vm_impl->add_active_exec(); vm_impl->update_action_weight(); } } static void remove_active_activity(kernel::activity::ActivityImpl const& act) { - s4u::VirtualMachine* vm = get_vm_from_activity(act); + const s4u::VirtualMachine* vm = get_vm_from_activity(act); if (vm != nullptr) { - VirtualMachineImpl *vm_impl = vm->get_impl(); - vm_impl->active_tasks_ = vm_impl->active_tasks_ - 1; + VirtualMachineImpl* vm_impl = vm->get_impl(); + vm_impl->remove_active_exec(); vm_impl->update_action_weight(); } } -VMModel::VMModel() +VMModel::VMModel(const std::string& name) : HostModel(name) { - all_existing_models.push_back(this); s4u::Host::on_state_change.connect(host_state_change); s4u::Exec::on_start.connect(add_active_exec); s4u::Exec::on_completion.connect(remove_active_exec); @@ -136,44 +153,43 @@ double VMModel::next_occurring_event(double now) /* iterate for all virtual machines */ for (s4u::VirtualMachine* const& ws_vm : VirtualMachineImpl::allVms_) { - kernel::resource::Cpu* cpu = ws_vm->pimpl_cpu; + if (ws_vm->get_state() == s4u::VirtualMachine::state::SUSPENDED) // Ignore suspended VMs + continue; + + const kernel::resource::Cpu* cpu = ws_vm->pimpl_cpu; - double solved_value = - ws_vm->get_impl()->action_->get_variable()->get_value(); // this is X1 in comment above, what - // this VM got in the sharing on the PM + // solved_value below is X1 in comment above: what this VM got in the sharing on the PM + double solved_value = ws_vm->get_impl()->get_action()->get_variable()->get_value(); XBT_DEBUG("assign %f to vm %s @ pm %s", solved_value, ws_vm->get_cname(), ws_vm->get_pm()->get_cname()); - xbt_assert(cpu->get_model() == surf_cpu_model_vm); kernel::lmm::System* vcpu_system = cpu->get_model()->get_maxmin_system(); vcpu_system->update_constraint_bound(cpu->get_constraint(), virt_overhead * solved_value); } - - /* 2. Ready. Get the next occurring event */ - return surf_cpu_model_vm->next_occurring_event(now); + /* actual next occurring event is determined by VM CPU model at surf_solve */ + return -1.0; } /************ * Resource * ************/ -VirtualMachineImpl::VirtualMachineImpl(simgrid::s4u::VirtualMachine* piface, simgrid::s4u::Host* host_PM, - int core_amount, size_t ramsize) - : HostImpl(piface), physical_host_(host_PM), core_amount_(core_amount), user_bound_(std::numeric_limits::max()), ramsize_(ramsize) +VirtualMachineImpl::VirtualMachineImpl(const std::string& name, s4u::VirtualMachine* piface, + simgrid::s4u::Host* host_PM, int core_amount, size_t ramsize) + : HostImpl(name, piface), piface_(piface), physical_host_(host_PM), core_amount_(core_amount), ramsize_(ramsize) { /* Register this VM to the list of all VMs */ allVms_.push_back(piface); - /* We create cpu_action corresponding to a VM process on the host operating system. */ /* TODO: we have to periodically input GUESTOS_NOISE to the system? how ? * The value for GUESTOS_NOISE corresponds to the cost of the global action associated to the VM. It corresponds to * the cost of a VM running no tasks. */ - action_ = host_PM->pimpl_cpu->execution_start(0, core_amount); + action_ = physical_host_->pimpl_cpu->execution_start(0, core_amount_); // It's empty for now, so it should not request resources in the PM update_action_weight(); - XBT_VERB("Create VM(%s)@PM(%s)", piface->get_cname(), physical_host_->get_cname()); + XBT_VERB("Create VM(%s)@PM(%s)", name.c_str(), physical_host_->get_cname()); on_creation(*this); } @@ -204,10 +220,10 @@ void VirtualMachineImpl::suspend(smx_actor_t issuer) action_->suspend(); - for (auto& actor : get_all_actors()) { - XBT_DEBUG("suspend %s", actor->get_cname()); - actor->suspend(); - } + foreach_actor([](auto& actor) { + XBT_DEBUG("suspend %s", actor.get_cname()); + actor.suspend(); + }); XBT_DEBUG("suspend all actors on the VM done done"); @@ -224,10 +240,10 @@ void VirtualMachineImpl::resume() action_->resume(); - for (auto& actor : get_all_actors()) { - XBT_DEBUG("resume %s", actor->get_cname()); - actor->resume(); - } + foreach_actor([](auto& actor) { + XBT_DEBUG("resume %s", actor.get_cname()); + actor.resume(); + }); vm_state_ = s4u::VirtualMachine::state::RUNNING; } @@ -242,7 +258,7 @@ void VirtualMachineImpl::resume() void VirtualMachineImpl::shutdown(smx_actor_t issuer) { if (get_state() != s4u::VirtualMachine::state::RUNNING) { - const char* stateName = "(unknown state)"; + const char* stateName; switch (get_state()) { case s4u::VirtualMachine::state::CREATED: stateName = "created, but not yet started"; @@ -261,11 +277,11 @@ void VirtualMachineImpl::shutdown(smx_actor_t issuer) XBT_DEBUG("shutdown VM %s, that contains %zu actors", piface_->get_cname(), get_actor_count()); - for (auto& actor : get_all_actors()) { - XBT_DEBUG("kill %s@%s on behalf of %s which shutdown that VM.", actor->get_cname(), actor->get_host()->get_cname(), + foreach_actor([issuer](auto& actor) { + XBT_DEBUG("kill %s@%s on behalf of %s which shutdown that VM.", actor.get_cname(), actor.get_host()->get_cname(), issuer->get_cname()); - issuer->kill(actor->get_impl()); - } + issuer->kill(&actor); + }); set_state(s4u::VirtualMachine::state::DESTROYED); @@ -285,12 +301,14 @@ void VirtualMachineImpl::set_physical_host(s4u::Host* destination) /* update net_elm with that of the destination physical host */ piface_->set_netpoint(destination->get_netpoint()); + /* Adapt the speed, pstate and other physical characteristics to the one of our new physical CPU */ + piface_->pimpl_cpu->reset_vcpu(destination->pimpl_cpu); + physical_host_ = destination; /* Update vcpu's action for the new pm */ /* create a cpu action bound to the pm model at the destination. */ - kernel::resource::CpuAction* new_cpu_action = - static_cast(destination->pimpl_cpu->execution_start(0, this->core_amount_)); + kernel::resource::CpuAction* new_cpu_action = destination->pimpl_cpu->execution_start(0, this->core_amount_); if (action_->get_remains_no_update() > 0) XBT_CRITICAL("FIXME: need copy the state(?), %f", action_->get_remains_no_update()); @@ -313,14 +331,16 @@ void VirtualMachineImpl::set_physical_host(s4u::Host* destination) void VirtualMachineImpl::set_bound(double bound) { user_bound_ = bound; + action_->set_user_bound(user_bound_); update_action_weight(); } -void VirtualMachineImpl::update_action_weight(){ +void VirtualMachineImpl::update_action_weight() +{ /* The impact of the VM over its PM is the min between its vCPU amount and the amount of tasks it contains */ - int impact = std::min(active_tasks_, get_core_amount()); + int impact = std::min(active_execs_, get_core_amount()); - XBT_DEBUG("set the weight of the dummy CPU action of VM%p on PM to %d (#tasks: %d)", this, impact, active_tasks_); + XBT_DEBUG("set the weight of the dummy CPU action of VM%p on PM to %d (#tasks: %u)", this, impact, active_execs_); if (impact > 0) action_->set_sharing_penalty(1. / impact); @@ -330,5 +350,5 @@ void VirtualMachineImpl::update_action_weight(){ action_->set_bound(std::min(impact * physical_host_->get_speed(), user_bound_)); } -} -} +} // namespace vm +} // namespace simgrid