-/* Copyright (c) 2013-2016. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2013-2019. 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/surf/FileImpl.hpp"
+#include "src/simix/smx_private.hpp"
+
#include <string>
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_host, surf, "Logging specific to the SURF host module");
simgrid::surf::HostModel *surf_host_model = nullptr;
/*************
- * Callbacks *
+ * Callbacks *t
*************/
namespace simgrid {
/*********
* Model *
*********/
-
-/* 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::ignoreEmptyVmInPmLMM()
-{
- /* iterate for all virtual machines */
- for (s4u::VirtualMachine* const& ws_vm : vm::VirtualMachineImpl::allVms_) {
- Cpu* cpu = ws_vm->pimpl_cpu;
- int active_tasks = lmm_constraint_get_variable_amount(cpu->constraint());
-
- /* 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->pimpl_vm_->coreAmount());
-
- 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->pimpl_vm_->action_->setSharingWeight(1. / impact);
- else
- ws_vm->pimpl_vm_->action_->setSharingWeight(0.);
- }
-}
-
/* Helper function for executeParallelTask */
-static inline double has_cost(double* array, int pos)
+static inline double has_cost(const double* array, size_t pos)
{
if (array)
return array[pos];
return -1.0;
}
-Action* HostModel::executeParallelTask(int host_nb, simgrid::s4u::Host** host_list, double* flops_amount,
- double* bytes_amount, double rate)
+kernel::resource::Action* HostModel::execute_parallel(const std::vector<s4u::Host*>& host_list,
+ const double* flops_amount, const double* bytes_amount,
+ double rate)
{
- Action* action = nullptr;
- if ((host_nb == 1) && (has_cost(bytes_amount, 0) <= 0)) {
+ kernel::resource::Action* action = nullptr;
+ if ((host_list.size() == 1) && (has_cost(bytes_amount, 0) <= 0) && (has_cost(flops_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)) {
+ } else if ((host_list.size() == 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)) {
+ } else if ((host_list.size() == 2) && (has_cost(flops_amount, 0) <= 0) && (has_cost(flops_amount, 1) <= 0)) {
int nb = 0;
double value = 0.0;
- for (int i = 0; i < host_nb * host_nb; i++) {
+ for (size_t i = 0; i < host_list.size() * host_list.size(); i++) {
if (has_cost(bytes_amount, i) > 0.0) {
nb++;
value = has_cost(bytes_amount, i);
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
+ } 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");
- xbt_free(host_list);
+ }
return action;
}
piface_->pimpl_ = this;
}
-void HostImpl::getAttachedStorageList(std::vector<const char*>* storages)
+HostImpl::~HostImpl()
+{
+ /* 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());
+
+ SIMIX_display_process_status();
+ xbt_die("%s", msg.c_str());
+ }
+ for (auto const& arg : actors_at_boot_)
+ delete arg;
+ actors_at_boot_.clear();
+}
+
+/** 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()
+{
+ for (auto const& arg : actors_at_boot_) {
+ XBT_DEBUG("Booting Actor %s(%s) right now", arg->name.c_str(), arg->host->get_cname());
+ simgrid::kernel::actor::ActorImplPtr actor = simgrid::kernel::actor::ActorImpl::create(
+ arg->name.c_str(), arg->code, nullptr, arg->host, arg->properties.get(), nullptr);
+ if (arg->on_exit)
+ *actor->on_exit = *arg->on_exit;
+ if (arg->kill_time >= 0)
+ actor->set_kill_time(arg->kill_time);
+ if (arg->auto_restart)
+ actor->set_auto_restart(arg->auto_restart);
+ if (arg->daemon_)
+ actor->daemonize();
+ }
+}
+
+/** Kill all actors hosted here */
+void HostImpl::turn_off()
+{
+ if (not process_list_.empty()) {
+ for (auto& actor : process_list_) {
+ XBT_DEBUG("Killing Actor %s@%s on behalf of %s which turned off that host.", actor.get_cname(),
+ actor.get_host()->get_cname(), SIMIX_process_self()->get_cname());
+ SIMIX_process_self()->kill(&actor);
+ }
+ }
+ // 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_), [](kernel::actor::ProcessArg* arg) {
+ if (arg->auto_restart)
+ return false;
+ delete arg;
+ return true;
+ });
+ actors_at_boot_.erase(elm, end(actors_at_boot_));
+}
+
+std::vector<s4u::ActorPtr> HostImpl::get_all_actors()
+{
+ std::vector<s4u::ActorPtr> res;
+ for (auto& actor : process_list_)
+ res.push_back(actor.ciface());
+ return res;
+}
+size_t HostImpl::get_actor_count()
+{
+ return process_list_.size();
+}
+std::vector<const char*> HostImpl::get_attached_storages()
{
+ std::vector<const char*> storages;
for (auto const& s : storage_)
- if (s.second->getHost() == piface_->getCname())
- storages->push_back(s.second->piface_.getName());
+ if (s.second->get_host() == piface_->get_cname())
+ storages.push_back(s.second->piface_.get_cname());
+ return storages;
}
}