-/* Copyright (c) 2013-2018. 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/simix/smx_private.hpp"
+
#include <string>
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_host, surf, "Logging specific to the SURF host module");
* 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::ignore_empty_vm_in_pm_LMM()
-{
- /* 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();
-
- /* 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->getImpl()->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->getImpl()->action_->set_priority(1. / impact);
- else
- ws_vm->getImpl()->action_->set_priority(0.);
- }
-}
-
/* Helper function for executeParallelTask */
-static inline double has_cost(double* array, int pos)
+static inline double has_cost(double* array, size_t pos)
{
if (array)
return array[pos];
return -1.0;
}
-kernel::resource::Action* HostModel::execute_parallel(int host_nb, s4u::Host** host_list, double* flops_amount,
+kernel::resource::Action* HostModel::execute_parallel(size_t host_nb, s4u::Host** host_list, double* flops_amount,
double* bytes_amount, double rate)
{
kernel::resource::Action* action = nullptr;
- if ((host_nb == 1) && (has_cost(bytes_amount, 0) <= 0)) {
+ if ((host_nb == 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)) {
action = surf_network_model->communicate(host_list[0], host_list[0], bytes_amount[0], rate);
int nb = 0;
double value = 0.0;
- for (int i = 0; i < host_nb * host_nb; i++) {
+ for (size_t i = 0; i < host_nb * host_nb; i++) {
if (has_cost(bytes_amount, i) > 0.0) {
nb++;
value = has_cost(bytes_amount, i);
" - 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;
}
piface_->pimpl_ = this;
}
+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();
+ THROWF(arg_error, 0, "%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());
+ smx_actor_t actor =
+ SIMIX_process_create(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;
+ 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.host_->get_cname(), SIMIX_process_self()->get_cname());
+ SIMIX_process_kill(&actor, SIMIX_process_self());
+ }
+ }
+ // 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;
