namespace s4u {
-simgrid::xbt::signal<void(Host&)> Host::onCreation;
-simgrid::xbt::signal<void(Host&)> Host::onDestruction;
-simgrid::xbt::signal<void(Host&)> Host::onStateChange;
-simgrid::xbt::signal<void(Host&)> Host::onSpeedChange;
+simgrid::xbt::signal<void(Host&)> Host::on_creation;
+simgrid::xbt::signal<void(Host&)> Host::on_destruction;
+simgrid::xbt::signal<void(Host&)> Host::on_state_change;
+simgrid::xbt::signal<void(Host&)> Host::on_speed_change;
Host::Host(const char* name) : name_(name)
{
if (pimpl_netpoint != nullptr) // not removed yet by a children class
simgrid::s4u::Engine::get_instance()->netpoint_unregister(pimpl_netpoint);
delete pimpl_cpu;
- delete mounts;
+ delete mounts_;
}
/** @brief Fire the required callbacks and destroy the object
{
if (not currentlyDestroying_) {
currentlyDestroying_ = true;
- onDestruction(*this);
+ on_destruction(*this);
Engine::get_instance()->host_unregister(std::string(name_));
delete this;
}
return smx_proc->host;
}
-void Host::turnOn()
+void Host::turn_on()
{
- if (isOff()) {
- simgrid::simix::kernelImmediate([this] {
+ if (is_off()) {
+ simgrid::simix::simcall([this] {
this->extension<simgrid::simix::Host>()->turnOn();
this->pimpl_cpu->turn_on();
- onStateChange(*this);
+ on_state_change(*this);
});
}
}
-void Host::turnOff()
+/** @brief Stop the host if it is on */
+void Host::turn_off()
{
- if (isOn()) {
+ if (is_on()) {
smx_actor_t self = SIMIX_process_self();
- simgrid::simix::kernelImmediate([this, self] {
- SIMIX_host_off(this, self);
- onStateChange(*this);
+ simgrid::simix::simcall([this, self] {
+ simgrid::simix::Host* host = this->extension<simgrid::simix::Host>();
+
+ xbt_assert((host != nullptr), "Invalid parameters");
+
+ this->pimpl_cpu->turn_off();
+
+ /* Clean Simulator data */
+ if (not host->process_list.empty()) {
+ for (auto& process : host->process_list) {
+ SIMIX_process_kill(&process, self);
+ XBT_DEBUG("Killing %s@%s on behalf of %s which turned off that host.", process.get_cname(),
+ process.host->get_cname(), self->get_cname());
+ }
+ }
+
+ on_state_change(*this);
});
}
}
-bool Host::isOn()
+bool Host::is_on() const
{
return this->pimpl_cpu->is_on();
}
-int Host::getPstatesCount() const
+int Host::get_pstate_count() const
{
- return this->pimpl_cpu->getNbPStates();
+ return this->pimpl_cpu->get_pstate_count();
}
/**
- * \brief Return the list of actors attached to an host.
+ * \brief Return a copy of the list of actors that are executing on this host.
*
- * \param whereto a vector in which we should push actors living on that host
+ * Daemons and regular actors are all mixed in this list.
*/
+std::vector<ActorPtr> Host::get_all_actors()
+{
+ std::vector<ActorPtr> res;
+ for (auto& actor : this->extension<simgrid::simix::Host>()->process_list)
+ res.push_back(actor.ciface());
+ return res;
+}
+
+/** @brief Returns how many actors (daemonized or not) have been launched on this host */
+int Host::get_actor_count()
+{
+ return this->extension<simgrid::simix::Host>()->process_list.size();
+}
+
+/** @deprecated */
+void Host::getProcesses(std::vector<ActorPtr>* list)
+{
+ for (auto& actor : this->extension<simgrid::simix::Host>()->process_list) {
+ list->push_back(actor.iface());
+ }
+}
+
+/** @deprecated */
void Host::actorList(std::vector<ActorPtr>* whereto)
{
for (auto& actor : this->extension<simgrid::simix::Host>()->process_list) {
* walk through the routing components tree and find a route between hosts
* by calling each "get_route" function in each routing component.
*/
-void Host::routeTo(Host* dest, std::vector<Link*>& links, double* latency)
+void Host::route_to(Host* dest, std::vector<Link*>& links, double* latency)
{
std::vector<kernel::resource::LinkImpl*> linkImpls;
- this->routeTo(dest, linkImpls, latency);
+ this->route_to(dest, linkImpls, latency);
for (kernel::resource::LinkImpl* const& l : linkImpls)
links.push_back(&l->piface_);
}
/** @brief Just like Host::routeTo, but filling an array of link implementations */
-void Host::routeTo(Host* dest, std::vector<kernel::resource::LinkImpl*>& links, double* latency)
+void Host::route_to(Host* dest, std::vector<kernel::resource::LinkImpl*>& links, double* latency)
{
simgrid::kernel::routing::NetZoneImpl::get_global_route(pimpl_netpoint, dest->pimpl_netpoint, links, latency);
if (XBT_LOG_ISENABLED(surf_route, xbt_log_priority_debug)) {
}
/** Get the properties assigned to a host */
-std::map<std::string, std::string>* Host::getProperties()
+std::unordered_map<std::string, std::string>* Host::get_properties()
{
- return simgrid::simix::kernelImmediate([this] { return this->pimpl_->getProperties(); });
+ return simgrid::simix::simcall([this] { return this->pimpl_->get_properties(); });
}
/** Retrieve the property value (or nullptr if not set) */
-const char* Host::getProperty(const char* key)
+const char* Host::get_property(const char* key) const
{
- return this->pimpl_->getProperty(key);
+ return this->pimpl_->get_property(key);
}
-void Host::setProperty(std::string key, std::string value)
+void Host::set_property(std::string key, std::string value)
{
- simgrid::simix::kernelImmediate([this, key, value] { this->pimpl_->setProperty(key, value); });
+ simgrid::simix::simcall([this, key, value] { this->pimpl_->set_property(key, value); });
}
-/** Get the processes attached to the host */
-void Host::getProcesses(std::vector<ActorPtr>* list)
+/** @brief Get the peak processor speed (in flops/s), at the specified pstate */
+double Host::get_pstate_speed(int pstate_index) const
{
- for (auto& actor : this->extension<simgrid::simix::Host>()->process_list) {
- list->push_back(actor.iface());
- }
+ return simgrid::simix::simcall([this, pstate_index] { return this->pimpl_cpu->get_pstate_peak_speed(pstate_index); });
}
-/** @brief Returns how many actors (daemonized or not) have been launched on this host */
-int Host::get_actor_count()
+/** @brief Get the peak computing speed in flops/s at the current pstate, taking the external load into account.
+ *
+ * The amount of flops per second available for computing depends on several things:
+ * - The current pstate determines the maximal peak computing speed (use @ref get_pstate_speed() to retrieve the
+ * computing speed you would get at another pstate)
+ * - If you declared an external load, then this reduces the available computing speed (see @ref set_speed_trace())
+ *
+ * The remaining speed is then shared between the executions located on this host.
+ * You can retrieve the amount of tasks currently running on this host with @ref get_load().
+ *
+ * The host may have multiple cores, and your executions may be able to use more than a single core.
+ *
+ * Finally, executions of priority 2 get twice the amount of flops than executions of priority 1.
+ */
+double Host::get_speed() const
{
- return this->extension<simgrid::simix::Host>()->process_list.size();
+ return this->pimpl_cpu->get_speed(1.0);
}
-
-/** @brief Get the peak processor speed (in flops/s), at the specified pstate */
-double Host::getPstateSpeed(int pstate_index)
+/** @brief Returns the current computation load (in flops per second)
+ * The external load (coming from an availability trace) is not taken in account.
+ */
+double Host::get_load() const
{
- return simgrid::simix::kernelImmediate(
- [this, pstate_index] { return this->pimpl_cpu->getPstateSpeed(pstate_index); });
+ return this->pimpl_cpu->get_load();
}
-
-/** @brief Get the peak processor speed (under full load (=1.0), in flops/s), at the current pstate */
-double Host::getSpeed()
+/** @brief Get the available speed ratio, between 0 and 1.
+ *
+ * This accounts for external load (see @ref set_speed_trace()).
+ */
+double Host::get_available_speed() const
{
- return pimpl_cpu->getSpeed(1.0);
+ return this->pimpl_cpu->get_speed_ratio();
}
/** @brief Returns the number of core of the processor. */
-int Host::getCoreCount()
+int Host::get_core_count() const
{
- return pimpl_cpu->coreCount();
+ return this->pimpl_cpu->get_core_count();
}
/** @brief Set the pstate at which the host should run */
-void Host::setPstate(int pstate_index)
+void Host::set_pstate(int pstate_index)
{
- simgrid::simix::kernelImmediate([this, pstate_index] { this->pimpl_cpu->setPState(pstate_index); });
+ simgrid::simix::simcall([this, pstate_index] { this->pimpl_cpu->set_pstate(pstate_index); });
}
/** @brief Retrieve the pstate at which the host is currently running */
-int Host::getPstate()
+int Host::get_pstate() const
{
- return this->pimpl_cpu->getPState();
+ return this->pimpl_cpu->get_pstate();
}
/**
* \brief Returns the list of storages attached to an host.
* \return a vector containing all storages attached to the host
*/
-std::vector<const char*> Host::get_attached_storages()
+std::vector<const char*> Host::get_attached_storages() const
{
- return simgrid::simix::kernelImmediate([this] { return this->pimpl_->get_attached_storages(); });
+ return simgrid::simix::simcall([this] { return this->pimpl_->get_attached_storages(); });
}
void Host::getAttachedStorages(std::vector<const char*>* storages)
{
std::vector<const char*> local_storages =
- simgrid::simix::kernelImmediate([this] { return this->pimpl_->get_attached_storages(); });
+ simgrid::simix::simcall([this] { return this->pimpl_->get_attached_storages(); });
for (auto elm : local_storages)
storages->push_back(elm);
}
-std::unordered_map<std::string, Storage*> const& Host::getMountedStorages()
+std::unordered_map<std::string, Storage*> const& Host::get_mounted_storages()
{
- if (mounts == nullptr) {
- mounts = new std::unordered_map<std::string, Storage*>();
+ if (mounts_ == nullptr) {
+ mounts_ = new std::unordered_map<std::string, Storage*>();
for (auto const& m : this->pimpl_->storage_) {
- mounts->insert({m.first, &m.second->piface_});
+ mounts_->insert({m.first, &m.second->piface_});
}
}
- return *mounts;
+ return *mounts_;
}
void Host::execute(double flops)
{
- Host* host_list[1] = {this};
- double flops_list[1] = {flops};
- smx_activity_t s = simcall_execution_parallel_start(nullptr /*name*/, 1, host_list, flops_list,
- nullptr /*comm_sizes */, -1.0, -1 /*timeout*/);
- simcall_execution_wait(s);
+ execute(flops, 1.0 /* priority */);
}
-
-double Host::getLoad()
+void Host::execute(double flops, double priority)
{
- return this->pimpl_cpu->get_load();
+ smx_activity_t s = simcall_execution_start(nullptr, flops, 1 / priority /*priority*/, 0. /*bound*/, this);
+ simcall_execution_wait(s);
}
} // namespace s4u
{
xbt_assert((host != nullptr), "Invalid parameters");
xbt_dict_t res = xbt_dict_new_homogeneous(nullptr);
- for (auto const& elm : host->getMountedStorages()) {
+ for (auto const& elm : host->get_mounted_storages()) {
const char* mount_name = elm.first.c_str();
sg_storage_t storage = elm.second;
xbt_dict_set(res, mount_name, (void*)storage->get_cname(), nullptr);
/** @brief Returns the total speed of a host */
double sg_host_speed(sg_host_t host)
{
- return host->getSpeed();
+ return host->get_speed();
}
/** \brief Return the speed of the processor (in flop/s) at a given pstate. See also @ref plugin_energy.
*/
double sg_host_get_pstate_speed(sg_host_t host, int pstate_index)
{
- return host->getPstateSpeed(pstate_index);
+ return host->get_pstate_speed(pstate_index);
}
/** \ingroup m_host_management
*/
int sg_host_core_count(sg_host_t host)
{
- return host->getCoreCount();
+ return host->get_core_count();
}
double sg_host_get_available_speed(sg_host_t host)
{
- return host->pimpl_cpu->get_available_speed();
+ return host->get_available_speed();
}
/** @brief Returns the number of power states for a host.
*/
int sg_host_get_nb_pstates(sg_host_t host)
{
- return host->getPstatesCount();
+ return host->get_pstate_count();
}
/** @brief Gets the pstate at which that host currently runs.
*/
int sg_host_get_pstate(sg_host_t host)
{
- return host->getPstate();
+ return host->get_pstate();
}
/** @brief Sets the pstate at which that host should run.
*
*/
void sg_host_set_pstate(sg_host_t host, int pstate)
{
- host->setPstate(pstate);
+ host->set_pstate(pstate);
}
/** \ingroup m_host_management
*/
void sg_host_turn_on(sg_host_t host)
{
- host->turnOn();
+ host->turn_on();
}
/** \ingroup m_host_management
*/
void sg_host_turn_off(sg_host_t host)
{
- host->turnOff();
+ host->turn_off();
}
/** @ingroup m_host_management
*/
int sg_host_is_on(sg_host_t host)
{
- return host->isOn();
+ return host->is_on();
}
/** @ingroup m_host_management
*/
int sg_host_is_off(sg_host_t host)
{
- return host->isOff();
+ return host->is_off();
}
/** @brief Get the properties of an host */
xbt_dict_t sg_host_get_properties(sg_host_t host)
{
xbt_dict_t as_dict = xbt_dict_new_homogeneous(xbt_free_f);
- std::map<std::string, std::string>* props = host->getProperties();
+ std::unordered_map<std::string, std::string>* props = host->get_properties();
if (props == nullptr)
return nullptr;
for (auto const& elm : *props) {
*/
const char* sg_host_get_property_value(sg_host_t host, const char* name)
{
- return host->getProperty(name);
+ return host->get_property(name);
}
void sg_host_set_property_value(sg_host_t host, const char* name, const char* value)
{
- host->setProperty(name, value);
+ host->set_property(name, value);
}
/**
void sg_host_route(sg_host_t from, sg_host_t to, xbt_dynar_t links)
{
std::vector<simgrid::s4u::Link*> vlinks;
- from->routeTo(to, vlinks, nullptr);
+ from->route_to(to, vlinks, nullptr);
for (auto const& link : vlinks)
xbt_dynar_push(links, &link);
}
{
std::vector<simgrid::s4u::Link*> vlinks;
double res = 0;
- from->routeTo(to, vlinks, &res);
+ from->route_to(to, vlinks, &res);
return res;
}
/**
double min_bandwidth = -1.0;
std::vector<simgrid::s4u::Link*> vlinks;
- from->routeTo(to, vlinks, nullptr);
+ from->route_to(to, vlinks, nullptr);
for (auto const& link : vlinks) {
- double bandwidth = link->bandwidth();
+ double bandwidth = link->get_bandwidth();
if (bandwidth < min_bandwidth || min_bandwidth < 0.0)
min_bandwidth = bandwidth;
}
void sg_host_dump(sg_host_t host)
{
XBT_INFO("Displaying host %s", host->get_cname());
- XBT_INFO(" - speed: %.0f", host->getSpeed());
+ XBT_INFO(" - speed: %.0f", host->get_speed());
XBT_INFO(" - available speed: %.2f", sg_host_get_available_speed(host));
- std::map<std::string, std::string>* props = host->getProperties();
+ std::unordered_map<std::string, std::string>* props = host->get_properties();
if (not props->empty()) {
XBT_INFO(" - properties:");
