-/* 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/s4u/Actor.hpp"
#include "simgrid/s4u/Engine.hpp"
#include "simgrid/s4u/Exec.hpp"
+#include "src/simix/smx_private.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(std::string name) : name_(name)
+Host::Host(const std::string& name) : name_(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);
+ xbt_assert(Host::by_name_or_null(name_) == nullptr, "Refusing to create a second host named '%s'.", get_cname());
+ Engine::get_instance()->host_register(name_, this);
new simgrid::surf::HostImpl(this);
}
Host::~Host()
{
- xbt_assert(currentlyDestroying_, "Please call h->destroy() instead of manually deleting it.");
+ xbt_assert(currently_destroying_, "Please call h->destroy() instead of manually deleting it.");
delete pimpl_;
if (pimpl_netpoint != nullptr) // not removed yet by a children class
*/
void Host::destroy()
{
- if (not currentlyDestroying_) {
- currentlyDestroying_ = true;
+ if (not currently_destroying_) {
+ currently_destroying_ = true;
on_destruction(*this);
Engine::get_instance()->host_unregister(std::string(name_));
delete this;
}
}
-Host* Host::by_name(std::string name)
+Host* Host::by_name(const std::string& name)
{
return Engine::get_instance()->host_by_name(name);
}
-Host* Host::by_name_or_null(std::string name)
+Host* Host::by_name_or_null(const std::string& name)
{
return Engine::get_instance()->host_by_name_or_null(name);
}
Host* Host::current()
{
- smx_actor_t smx_proc = SIMIX_process_self();
- if (smx_proc == nullptr)
+ smx_actor_t self = SIMIX_process_self();
+ if (self == nullptr)
xbt_die("Cannot call Host::current() from the maestro context");
- return smx_proc->host_;
+ return self->get_host();
}
void Host::turn_on()
{
- if (is_off()) {
+ if (not is_on()) {
simgrid::simix::simcall([this] {
this->pimpl_cpu->turn_on();
this->pimpl_->turn_on();
}
/** Retrieve the property value (or nullptr if not set) */
-const char* Host::get_property(std::string key) const
+const char* Host::get_property(const std::string& key) const
{
return this->pimpl_->get_property(key);
}
-void Host::set_property(std::string key, std::string value)
+void Host::set_property(const std::string& key, const std::string& value)
{
- simgrid::simix::simcall([this, key, value] { this->pimpl_->set_property(key, value); });
+ 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 */
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 simgrid::surf::Cpu::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().
}
/** @brief Get the available speed ratio, between 0 and 1.
*
- * This accounts for external load (see @ref simgrid::surf::Cpu::set_speed_trace()).
+ * This accounts for external load (see @ref simgrid::surf::Cpu::set_speed_profile()).
*/
double Host::get_available_speed() const
{
ExecPtr Host::exec_async(double flops)
{
- return this_actor::exec_init(flops)->set_host(this);
+ return this_actor::exec_init(flops);
}
void Host::execute(double flops)
{
execute(flops, 1.0 /* priority */);
}
+
void Host::execute(double flops, double priority)
{
- this_actor::exec_init(flops)->set_host(this)->set_priority(1 / priority)->start()->wait();
+ this_actor::exec_init(flops)->set_priority(1 / priority)->start()->wait();
}
} // namespace s4u
return simgrid::s4u::Host::by_name_or_null(name);
}
-static int hostcmp_voidp(const void* pa, const void* pb)
-{
- return strcmp((*static_cast<simgrid::s4u::Host* const*>(pa))->get_cname(),
- (*static_cast<simgrid::s4u::Host* const*>(pb))->get_cname());
-}
-
xbt_dynar_t sg_hosts_as_dynar()
{
xbt_dynar_t res = xbt_dynar_new(sizeof(sg_host_t), nullptr);
if (host && host->pimpl_netpoint && host->pimpl_netpoint->is_host())
xbt_dynar_push(res, &host);
}
- xbt_dynar_sort(res, hostcmp_voidp);
+ xbt_dynar_sort(res, [](const void* pa, const void* pb) {
+ const std::string& na = (*static_cast<simgrid::s4u::Host* const*>(pa))->get_name();
+ const std::string& nb = (*static_cast<simgrid::s4u::Host* const*>(pb))->get_name();
+ return na.compare(nb);
+ });
return res;
}
*
* @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
+ * See also #sg_host_is_on() to test the current state of the host and @ref plugin_energy
* for more info on DVFS.
*/
void sg_host_turn_on(sg_host_t host)
*
* @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
+ * See also #MSG_host_is_on() to test the current state of the host and @ref plugin_energy
* for more info on DVFS.
*/
void sg_host_turn_off(sg_host_t host)
return host->is_on();
}
-/** @ingroup m_host_management
- * @brief Determine if a host is currently off.
- *
- * See also #sg_host_turn_on() and #sg_host_turn_off() to switch the host ON and OFF and @ref plugin_energy for more
- * info on DVFS.
- */
+/** @deprecated */
int sg_host_is_off(sg_host_t host)
{
- return host->is_off();
+ return not host->is_on();
}
/** @brief Get the properties of a host */
sg_host_t sg_host_self()
{
smx_actor_t process = SIMIX_process_self();
- return (process == nullptr) ? nullptr : process->host_;
+ return (process == nullptr) ? nullptr : process->get_host();
+}
+
+/* needs to be public and without simcall for exceptions and logging events */
+const char* sg_host_self_get_name()
+{
+ sg_host_t host = sg_host_self();
+ if (host == nullptr || SIMIX_process_self() == simix_global->maestro_process)
+ return "";
+
+ return host->get_cname();
}
double sg_host_load(sg_host_t host)
