X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/b52efac1269b9d45904bc117d695b2d3f2c63376..f89bb4bc494cb511098326ec3f18adbe0739bf26:/src/surf/HostImpl.cpp diff --git a/src/surf/HostImpl.cpp b/src/surf/HostImpl.cpp index 1084bc0a83..51f7f98366 100644 --- a/src/surf/HostImpl.cpp +++ b/src/surf/HostImpl.cpp @@ -1,173 +1,245 @@ -/* Copyright (c) 2013-2018. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2013-2022. 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 "src/simix/smx_private.hpp" +#include +#include +#include -#include +#include "src/kernel/EngineImpl.hpp" +#include "src/kernel/resource/VirtualMachineImpl.hpp" -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_host, surf, "Logging specific to the SURF host module"); +#include -simgrid::surf::HostModel *surf_host_model = nullptr; +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(res_host, ker_resource, "Host resources agregate CPU, networking and I/O features"); /************* - * Callbacks * + * Callbacks *t *************/ namespace simgrid { -namespace surf { +namespace kernel { +namespace resource { /********* * Model * *********/ +/************ + * Resource * + ************/ +HostImpl::HostImpl(const std::string& name) : piface_(this), name_(name) +{ + xbt_assert(s4u::Host::by_name_or_null(name_) == nullptr, "Refusing to create a second host named '%s'.", get_cname()); +} -/* Each VM has a dummy CPU action on the PM layer. This CPU action works as the constraint (capacity) of the VM in the - * PM layer. If the VM does not have any active task, the dummy CPU action must be deactivated, so that the VM does not - * get any CPU share in the PM layer. */ -void HostModel::ignore_empty_vm_in_pm_LMM() +HostImpl::~HostImpl() { - /* iterate for all virtual machines */ - for (s4u::VirtualMachine* const& ws_vm : vm::VirtualMachineImpl::allVms_) { - Cpu* cpu = ws_vm->pimpl_cpu; - int active_tasks = cpu->get_constraint()->get_variable_amount(); + /* All actors should be gone when the host is turned off (by the end of the simulation). */ + if (not actor_list_.empty()) { + const char* msg = "Shutting down host, but it's not empty"; + try { + std::string actors; + for (auto const& actor : actor_list_) + actors += "\n\t" + std::string(actor.get_name()); + + EngineImpl::get_instance()->display_all_actor_status(); + xbt_die("%s:%s", msg, actors.c_str()); + } catch (const std::bad_alloc& ba) { + xbt_die("%s (cannot print actor list: %s)", msg, ba.what()); + } + } + for (auto const& arg : actors_at_boot_) + delete arg; + actors_at_boot_.clear(); - /* 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, ws_vm->get_impl()->get_core_amount()); + for (auto const& [_, d] : disks_) + d->destroy(); - XBT_DEBUG("set the weight of the dummy CPU action of VM%p on PM to %d (#tasks: %d)", ws_vm, impact, active_tasks); - if (impact > 0) - ws_vm->get_impl()->action_->set_priority(1. / impact); - else - ws_vm->get_impl()->action_->set_priority(0.); - } + for (auto const& [_, vm] : vms_) + vm->vm_destroy(); } -/* Helper function for executeParallelTask */ -static inline double has_cost(double* array, int pos) +/** @brief Fire the required callbacks and destroy the object + * + * Don't delete directly a Host, call h->destroy() instead. + */ +void HostImpl::destroy() { - if (array) - return array[pos]; - else - return -1.0; + s4u::Host::on_destruction(*this->get_iface()); + delete this; } -kernel::resource::Action* HostModel::execute_parallel(int host_nb, s4u::Host** host_list, double* flops_amount, - double* bytes_amount, double rate) +/** Re-starts all the actors that are marked as restartable. + * + * Weird things will happen if you turn on a host that is already on. S4U is fool-proof, not this. + */ +void HostImpl::turn_on() const { - kernel::resource::Action* action = nullptr; - if ((host_nb == 1) && (has_cost(bytes_amount, 0) <= 0)) { - action = host_list[0]->pimpl_cpu->execution_start(flops_amount[0]); - } else if ((host_nb == 1) && (has_cost(flops_amount, 0) <= 0)) { - action = surf_network_model->communicate(host_list[0], host_list[0], bytes_amount[0], rate); - } else if ((host_nb == 2) && (has_cost(flops_amount, 0) <= 0) && (has_cost(flops_amount, 1) <= 0)) { - int nb = 0; - double value = 0.0; + for (auto const& arg : actors_at_boot_) { + XBT_DEBUG("Booting Actor %s(%s) right now", arg->name.c_str(), arg->host->get_cname()); + actor::ActorImplPtr actor = actor::ActorImpl::create(arg); + } +} - for (int i = 0; i < host_nb * host_nb; i++) { - if (has_cost(bytes_amount, i) > 0.0) { - nb++; - value = has_cost(bytes_amount, i); +/** Kill all actors hosted here */ +void HostImpl::turn_off(const actor::ActorImpl* issuer) +{ + /* turn_off VMs running on host */ + for (const auto& [_, vm] : vms_) { + // call s4u functions to generate the good on_state_change signal, maybe one day this wont be necessary + vm->get_iface()->shutdown(); + vm->get_iface()->turn_off(); + } + for (auto& actor : actor_list_) { + XBT_DEBUG("Killing Actor %s@%s on behalf of %s which turned off that host.", actor.get_cname(), + actor.get_host()->get_cname(), issuer->get_cname()); + issuer->kill(&actor); + } + for (const auto& activity : EngineImpl::get_instance()->get_maestro()->activities_) { + auto* exec = dynamic_cast(activity.get()); + if (exec != nullptr) { + auto hosts = exec->get_hosts(); + if (std::find(hosts.begin(), hosts.end(), &piface_) != hosts.end()) { + exec->cancel(); + exec->set_state(activity::State::FAILED); } } - if (nb == 1) { - action = surf_network_model->communicate(host_list[0], host_list[1], value, rate); - } else if (nb == 0) { - xbt_die("Cannot have a communication with no flop to exchange in this model. You should consider using the " - "ptask model"); - } else { - xbt_die("Cannot have a communication that is not a simple point-to-point in this model. You should consider " - "using the ptask model"); - } - } else { - xbt_die( - "This model only accepts one of the following. You should consider using the ptask model for the other cases.\n" - " - execution with one host only and no communication\n" - " - Self-comms with one host only\n" - " - Communications with two hosts and no computation"); } - delete[] host_list; - delete[] flops_amount; - delete[] bytes_amount; - return action; + // When a host is turned off, we want to keep only the actors that should restart for when it will boot again. + // Then get rid of the others. + auto elm = remove_if(begin(actors_at_boot_), end(actors_at_boot_), [](const actor::ProcessArg* arg) { + if (arg->auto_restart) + return false; + delete arg; + return true; + }); + actors_at_boot_.erase(elm, end(actors_at_boot_)); } -/************ - * Resource * - ************/ -HostImpl::HostImpl(s4u::Host* host) : piface_(host) +HostImpl* HostImpl::set_englobing_zone(routing::NetZoneImpl* englobing_zone) { - /* The VM wants to reinstall a new HostImpl, but we don't want to leak the previously existing one */ - delete piface_->pimpl_; - piface_->pimpl_ = this; + englobing_zone_ = englobing_zone; + return this; } -HostImpl::~HostImpl() + +std::vector HostImpl::get_all_actors() +{ + std::vector res; + for (auto& actor : actor_list_) + res.emplace_back(actor.get_ciface()); + return res; +} +size_t HostImpl::get_actor_count() const { - /* All processes should be gone when the host is turned off (by the end of the simulation). */ - if (not process_list_.empty()) { - std::string msg = std::string("Shutting down host, but it's not empty:"); - for (auto const& process : process_list_) - msg += "\n\t" + std::string(process.get_name()); + return actor_list_.size(); +} - SIMIX_display_process_status(); - THROWF(arg_error, 0, "%s", msg.c_str()); - } - for (auto const& arg : auto_restart_processes_) - delete arg; - auto_restart_processes_.clear(); - for (auto const& arg : boot_processes_) - delete arg; - boot_processes_.clear(); +std::vector HostImpl::get_disks() const +{ + std::vector disks; + for (auto const& [_, d] : disks_) + disks.push_back(d->get_iface()); + return disks; } -/** Re-starts all the actors that are marked as restartable. - * - * Weird things will happen if you turn on an host that is already on. S4U is fool-proof, not this. - */ -void HostImpl::turn_on() -{ - for (auto const& arg : boot_processes_) { - XBT_DEBUG("Booting Process %s(%s) right now", arg->name.c_str(), arg->host->get_cname()); - smx_actor_t actor = simix_global->create_process_function(arg->name.c_str(), arg->code, nullptr, arg->host, - arg->properties.get(), nullptr); - if (arg->kill_time >= 0) - simcall_process_set_kill_time(actor, arg->kill_time); - if (arg->auto_restart) - actor->auto_restart_ = arg->auto_restart; - } +s4u::VirtualMachine* HostImpl::create_vm(const std::string& name, int core_amount, size_t ramsize) +{ + auto* host_vm = new kernel::resource::VirtualMachineImpl(name, get_iface(), core_amount, ramsize); + auto* vm = new s4u::VirtualMachine(host_vm); + host_vm->set_piface(vm); + return create_vm(name, vm); } -/** Kill all actors hosted here */ -void HostImpl::turn_off() + +s4u::VirtualMachine* HostImpl::create_vm(const std::string& name, s4u::VirtualMachine* vm) { - if (not process_list_.empty()) { - for (auto& actor : process_list_) { - SIMIX_process_kill(&actor, SIMIX_process_self()); - XBT_DEBUG("Killing %s@%s on behalf of %s which turned off that host.", actor.get_cname(), - actor.host_->get_cname(), SIMIX_process_self()->get_cname()); - } - } + vms_[name] = vm->get_vm_impl(); + + // Create a VCPU for this VM + std::vector speeds; + for (unsigned long i = 0; i < get_iface()->get_pstate_count(); i++) + speeds.push_back(get_iface()->get_pstate_speed(i)); + + auto* cpu = + englobing_zone_->get_cpu_vm_model()->create_cpu(vm, speeds)->set_core_count(vm->get_vm_impl()->get_core_amount()); + + if (get_iface()->get_pstate() != 0) + cpu->set_pstate(get_iface()->get_pstate()); + + cpu->seal(); + + /* Currently, a VM uses the network resource of its physical host */ + vm->set_netpoint(get_iface()->get_netpoint()); + + vm->seal(); + + return vm; } -std::vector HostImpl::get_all_actors() +void HostImpl::move_vm(VirtualMachineImpl* vm, HostImpl* destination) { - std::vector res; - for (auto& actor : process_list_) - res.push_back(actor.ciface()); - return res; + xbt_assert(vm && destination); + + vms_.erase(vm->get_name()); + destination->vms_[vm->get_name()] = vm; +} + +void HostImpl::destroy_vm(const std::string& name) +{ + auto* vm = vms_[name]; + vms_.erase(name); + vm->vm_destroy(); +} + +VirtualMachineImpl* HostImpl::get_vm_by_name_or_null(const std::string& name) const +{ + auto vm_it = vms_.find(name); + return vm_it == vms_.end() ? nullptr : vm_it->second; +} + +std::vector HostImpl::get_vms() const +{ + std::vector vms; + for (const auto& [_, vm] : vms_) { + vms.push_back(vm->get_iface()); + } + return vms; } -int HostImpl::get_actor_count() + +s4u::Disk* HostImpl::create_disk(const std::string& name, double read_bandwidth, double write_bandwidth) { - return process_list_.size(); + auto disk = piface_.get_netpoint()->get_englobing_zone()->get_disk_model()->create_disk(name, read_bandwidth, + write_bandwidth); + return disk->set_host(&piface_)->get_iface(); } -std::vector HostImpl::get_attached_storages() + +void HostImpl::add_disk(const s4u::Disk* disk) { - std::vector storages; - for (auto const& s : storage_) - if (s.second->getHost() == piface_->get_cname()) - storages.push_back(s.second->piface_.get_cname()); - return storages; + disks_[disk->get_name()] = disk->get_impl(); } +void HostImpl::remove_disk(const std::string& name) +{ + disks_.erase(name); } + +void HostImpl::seal() +{ + if (sealed_) { + return; + } + // seals host's CPU + get_iface()->get_cpu()->seal(); + sealed_ = true; + + /* seal its disks */ + for (auto const& [_, disk] : disks_) + disk->seal(); + + /* seal its VMs */ + for (auto const& [_, vm] : vms_) + vm->seal(); } +} // namespace resource +} // namespace kernel +} // namespace simgrid