-/* Copyright (c) 2006-2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2006-2019. 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 "simgrid/kernel/routing/NetPoint.hpp"
+#include "simgrid/s4u/Actor.hpp"
#include "simgrid/s4u/Engine.hpp"
-#include "src/simix/smx_host_private.hpp"
+#include "simgrid/s4u/Exec.hpp"
#include "src/surf/HostImpl.hpp"
#include <string>
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)
+Host::Host(std::string name) : name_(name)
{
- xbt_assert(Host::by_name_or_null(name) == nullptr, "Refusing to create a second host named '%s'.", name);
+ xbt_assert(Host::by_name_or_null(name) == nullptr, "Refusing to create a second host named '%s'.", name.c_str());
Engine::get_instance()->host_register(std::string(name_), this);
new simgrid::surf::HostImpl(this);
}
/** @brief Fire the required callbacks and destroy the object
*
- * Don't delete directly an Host, call h->destroy() instead.
+ * Don't delete directly a host, call h->destroy() instead.
*
* This is cumbersome but this is the simplest solution to ensure that the
* onDestruction() callback receives a valid object (because of the destructor
{
return Engine::get_instance()->host_by_name(name);
}
-Host* Host::by_name(const char* name)
-{
- return Engine::get_instance()->host_by_name(std::string(name));
-}
-Host* Host::by_name_or_null(const char* name)
-{
- return Engine::get_instance()->host_by_name_or_null(std::string(name));
-}
Host* Host::by_name_or_null(std::string name)
{
return Engine::get_instance()->host_by_name_or_null(name);
smx_actor_t smx_proc = SIMIX_process_self();
if (smx_proc == nullptr)
xbt_die("Cannot call Host::current() from the maestro context");
- return smx_proc->host;
+ return smx_proc->host_;
}
void Host::turn_on()
{
if (is_off()) {
simgrid::simix::simcall([this] {
- this->extension<simgrid::simix::Host>()->turnOn();
this->pimpl_cpu->turn_on();
+ this->pimpl_->turn_on();
on_state_change(*this);
});
}
void Host::turn_off()
{
if (is_on()) {
- smx_actor_t self = SIMIX_process_self();
- simgrid::simix::simcall([this, self] {
- simgrid::simix::Host* host = this->extension<simgrid::simix::Host>();
-
- xbt_assert((host != nullptr), "Invalid parameters");
-
+ simgrid::simix::simcall([this] {
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());
- }
- }
+ this->pimpl_->turn_off();
on_state_change(*this);
});
}
}
-bool Host::is_on()
+bool Host::is_on() const
{
return this->pimpl_cpu->is_on();
}
}
/**
- * \brief Return a copy of the list of actors that are executing on this host.
+ * @brief Return a copy of the list of actors that are executing on this 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;
+ return pimpl_->get_all_actors();
}
/** @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();
+ return pimpl_->get_actor_count();
}
/** @deprecated */
void Host::getProcesses(std::vector<ActorPtr>* list)
{
- for (auto& actor : this->extension<simgrid::simix::Host>()->process_list) {
- list->push_back(actor.iface());
- }
+ auto actors = get_all_actors();
+ for (auto& actor : actors)
+ list->push_back(actor);
}
/** @deprecated */
void Host::actorList(std::vector<ActorPtr>* whereto)
{
- for (auto& actor : this->extension<simgrid::simix::Host>()->process_list) {
- whereto->push_back(actor.ciface());
- }
+ auto actors = get_all_actors();
+ for (auto& actor : actors)
+ whereto->push_back(actor);
}
/**
- * \brief Find a route toward another host
+ * @brief Find a route toward another host
*
- * \param dest [IN] where to
- * \param links [OUT] where to store the list of links (must exist, cannot be nullptr).
- * \param latency [OUT] where to store the latency experienced on the path (or nullptr if not interested)
+ * @param dest [IN] where to
+ * @param links [OUT] where to store the list of links (must exist, cannot be nullptr).
+ * @param latency [OUT] where to store the latency experienced on the path (or nullptr if not interested)
* It is the caller responsibility to initialize latency to 0 (we add to provided route)
- * \pre links!=nullptr
+ * @pre links!=nullptr
*
* walk through the routing components tree and find a route between hosts
* by calling each "get_route" function in each routing component.
}
/** Retrieve the property value (or nullptr if not set) */
-const char* Host::get_property(const char* key)
+const char* Host::get_property(std::string key) const
{
return this->pimpl_->get_property(key);
}
{
simgrid::simix::simcall([this, key, value] { this->pimpl_->set_property(key, value); });
}
+/** Specify a profile turning the host on and off according to a exhaustive list or a stochastic law.
+ * The profile must contain boolean values. */
+void Host::set_state_profile(kernel::profile::Profile* p)
+{
+ return simgrid::simix::simcall([this, p] { pimpl_cpu->set_state_profile(p); });
+}
+/** Specify a profile modeling the external load according to a exhaustive list or a stochastic law.
+ *
+ * Each event of the profile represent a peak speed change that is due to external load. The values are given as a rate
+ * of the initial value. This means that the actual value is obtained by multiplying the initial value (the peek speed
+ * at this pstate level) by the rate coming from the profile.
+ */
+void Host::set_speed_profile(kernel::profile::Profile* p)
+{
+ return simgrid::simix::simcall([this, p] { pimpl_cpu->set_speed_profile(p); });
+}
/** @brief Get the peak processor speed (in flops/s), at the specified pstate */
-double Host::get_pstate_speed(int pstate_index)
+double Host::get_pstate_speed(int pstate_index) const
{
return simgrid::simix::simcall([this, pstate_index] { return this->pimpl_cpu->get_pstate_peak_speed(pstate_index); });
}
-/** @brief Get the peak computing speed in flops/s at the current pstate, taking the external load into account.
+/** @brief Get the peak computing speed in flops/s at the current pstate, NOT 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())
+ * - If you declared an external load (with @ref simgrid::surf::Cpu::set_speed_profile()), you must multiply the
+ * result of get_speed() by get_available_speed() to retrieve what a new computation would get.
*
* 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().
*
* Finally, executions of priority 2 get twice the amount of flops than executions of priority 1.
*/
-double Host::get_speed()
+double Host::get_speed() const
{
return this->pimpl_cpu->get_speed(1.0);
}
/** @brief Returns the current computation load (in flops per second)
+ *
* The external load (coming from an availability trace) is not taken in account.
+ * You may also be interested in the load plugin.
*/
-double Host::get_load()
+double Host::get_load() const
{
return this->pimpl_cpu->get_load();
}
/** @brief Get the available speed ratio, between 0 and 1.
*
- * This accounts for external load (see @ref set_speed_trace()).
+ * This accounts for external load (see @ref simgrid::surf::Cpu::set_speed_profile()).
*/
-double Host::get_available_speed()
+double Host::get_available_speed() const
{
return this->pimpl_cpu->get_speed_ratio();
}
/** @brief Returns the number of core of the processor. */
-int Host::get_core_count()
+int Host::get_core_count() const
{
return this->pimpl_cpu->get_core_count();
}
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::get_pstate()
+int Host::get_pstate() const
{
return this->pimpl_cpu->get_pstate();
}
/**
- * \ingroup simix_storage_management
- * \brief Returns the list of storages attached to an host.
- * \return a vector containing all storages attached to the host
+ * @ingroup simix_storage_management
+ * @brief Returns the list of storages attached to a 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::simcall([this] { return this->pimpl_->get_attached_storages(); });
}
return *mounts_;
}
+ExecPtr Host::exec_async(double flops)
+{
+ return this_actor::exec_init(flops)->set_host(this);
+}
+
void Host::execute(double flops)
{
execute(flops, 1.0 /* priority */);
}
+
void Host::execute(double flops, double priority)
{
- smx_activity_t s = simcall_execution_start(nullptr, flops, 1 / priority /*priority*/, 0. /*bound*/, this);
- simcall_execution_wait(s);
+ this_actor::exec_init(flops)->set_host(this)->set_priority(1 / priority)->start()->wait();
}
} // namespace s4u
*
* Uses sg_host_count() to know the array size.
*
- * \return an array of \ref sg_host_t containing all the hosts in the platform.
- * \remark The host order in this array is generally different from the
+ * @return an array of @ref sg_host_t containing all the hosts in the platform.
+ * @remark The host order in this array is generally different from the
* creation/declaration order in the XML platform (we use a hash table
* internally).
- * \see sg_host_count()
+ * @see sg_host_count()
*/
sg_host_t* sg_host_list()
{
return host->get_speed();
}
-/** \brief Return the speed of the processor (in flop/s) at a given pstate. See also @ref plugin_energy.
+/** @brief Return the speed of the processor (in flop/s) at a given pstate. See also @ref plugin_energy.
*
- * \param host host to test
- * \param pstate_index pstate to test
- * \return Returns the processor speed associated with pstate_index
+ * @param host host to test
+ * @param pstate_index pstate to test
+ * @return Returns the processor speed associated with pstate_index
*/
double sg_host_get_pstate_speed(sg_host_t host, int pstate_index)
{
return host->get_pstate_speed(pstate_index);
}
-/** \ingroup m_host_management
- * \brief Return the number of cores.
+/** @ingroup m_host_management
+ * @brief Return the number of cores.
*
- * \param host a host
- * \return the number of cores
+ * @param host a host
+ * @return the number of cores
*/
int sg_host_core_count(sg_host_t host)
{
host->set_pstate(pstate);
}
-/** \ingroup m_host_management
+/** @ingroup m_host_management
*
- * \brief Start the host if it is off
+ * @brief Start the host if it is off
*
* See also #sg_host_is_on() and #sg_host_is_off() to test the current state of the host and @ref plugin_energy
* for more info on DVFS.
host->turn_on();
}
-/** \ingroup m_host_management
+/** @ingroup m_host_management
*
- * \brief Stop the host if it is on
+ * @brief Stop the host if it is on
*
* See also #MSG_host_is_on() and #MSG_host_is_off() to test the current state of the host and @ref plugin_energy
* for more info on DVFS.
return host->is_off();
}
-/** @brief Get the properties of an host */
+/** @brief Get the properties of a host */
xbt_dict_t sg_host_get_properties(sg_host_t host)
{
xbt_dict_t as_dict = xbt_dict_new_homogeneous(xbt_free_f);
return as_dict;
}
-/** \ingroup m_host_management
- * \brief Returns the value of a given host property
+/** @ingroup m_host_management
+ * @brief Returns the value of a given host property
*
- * \param host a host
- * \param name a property name
- * \return value of a property (or nullptr if property not set)
-*/
+ * @param host a host
+ * @param name a property name
+ * @return value of a property (or nullptr if property not set)
+ */
const char* sg_host_get_property_value(sg_host_t host, const char* name)
{
return host->get_property(name);
}
/**
- * \brief Find a route between two hosts
+ * @brief Find a route between two hosts
*
- * \param from where from
- * \param to where to
- * \param links [OUT] where to store the list of links (must exist, cannot be nullptr).
+ * @param from where from
+ * @param to where to
+ * @param links [OUT] where to store the list of links (must exist, cannot be nullptr).
*/
void sg_host_route(sg_host_t from, sg_host_t to, xbt_dynar_t links)
{
xbt_dynar_push(links, &link);
}
/**
- * \brief Find the latency of the route between two hosts
+ * @brief Find the latency of the route between two hosts
*
- * \param from where from
- * \param to where to
+ * @param from where from
+ * @param to where to
*/
double sg_host_route_latency(sg_host_t from, sg_host_t to)
{
return res;
}
/**
- * \brief Find the bandwitdh of the route between two hosts
+ * @brief Find the bandwitdh of the route between two hosts
*
- * \param from where from
- * \param to where to
+ * @param from where from
+ * @param to where to
*/
double sg_host_route_bandwidth(sg_host_t from, sg_host_t to)
{
}
}
-/** \brief Return the list of actors attached to an host.
+/** @brief Return the list of actors attached to a host.
*
- * \param host a host
- * \param whereto a dynar in which we should push actors living on that host
+ * @param host a host
+ * @param whereto a dynar in which we should push actors living on that host
*/
void sg_host_get_actor_list(sg_host_t host, xbt_dynar_t whereto)
{
- for (auto& actor : host->extension<simgrid::simix::Host>()->process_list) {
- s4u_Actor* p = actor.ciface();
- xbt_dynar_push(whereto, &p);
- }
+ auto actors = host->get_all_actors();
+ for (auto& actor : actors)
+ xbt_dynar_push(whereto, &actor);
}
sg_host_t sg_host_self()
{
smx_actor_t process = SIMIX_process_self();
- return (process == nullptr) ? nullptr : process->host;
+ return (process == nullptr) ? nullptr : process->host_;
+}
+
+double sg_host_load(sg_host_t host)
+{
+ return host->get_load();
}
