simgrid::s4u::Host* host_ = nullptr;
/*< List of (idle_power, epsilon_power, max_power) tuple corresponding to each cpu pstate */
std::vector<PowerRange> power_range_watts_list_;
+ bool has_pstate_power_values_ = false; /*< Whether power consumption values were provided for all pstates */
/* We need to keep track of what pstate has been used, as we will sometimes be notified only *after* a pstate has been
* used (but we need to update the energy consumption with the old pstate!)
explicit HostEnergy(simgrid::s4u::Host* ptr);
~HostEnergy();
+ bool has_pstate_power_values() const;
+
double get_current_watts_value();
double get_current_watts_value(double cpu_load) const;
double get_consumed_energy();
simgrid::xbt::Extension<simgrid::s4u::Host, HostEnergy> HostEnergy::EXTENSION_ID;
+/* Returns whether power consumption values were provided for all pstates. */
+bool HostEnergy::has_pstate_power_values() const {
+ return has_pstate_power_values_;
+}
+
/* Computes the consumption so far. Called lazily on need. */
void HostEnergy::update()
{
double HostEnergy::get_watt_idle_at(int pstate) const
{
- xbt_assert(not power_range_watts_list_.empty(), "No power range properties specified for host %s",
- host_->get_cname());
+ if (not has_pstate_power_values_)
+ return 0.0;
return power_range_watts_list_[pstate].idle_;
}
double HostEnergy::get_watt_min_at(int pstate) const
{
- xbt_assert(not power_range_watts_list_.empty(), "No power range properties specified for host %s",
- host_->get_cname());
+ if (not has_pstate_power_values_)
+ return 0.0;
return power_range_watts_list_[pstate].epsilon_;
}
double HostEnergy::get_watt_max_at(int pstate) const
{
- xbt_assert(not power_range_watts_list_.empty(), "No power range properties specified for host %s",
- host_->get_cname());
+ if (not has_pstate_power_values_)
+ return 0.0;
return power_range_watts_list_[pstate].max_;
}
double HostEnergy::get_power_range_slope_at(int pstate) const
{
- xbt_assert(not power_range_watts_list_.empty(), "No power range properties specified for host %s",
- host_->get_cname());
+ if (not has_pstate_power_values_)
+ return 0.0;
return power_range_watts_list_[pstate].slope_;
}
*/
double HostEnergy::get_current_watts_value(double cpu_load) const
{
- xbt_assert(not power_range_watts_list_.empty(), "No power range properties specified for host %s",
- host_->get_cname());
+ if (not has_pstate_power_values_)
+ return 0.0;
/* Return watts_off if pstate == pstate_off (ie, if the host is off) */
if (this->pstate_ == pstate_off_) {
{
const char* all_power_values_str = host_->get_property("wattage_per_state");
if (all_power_values_str == nullptr) {
- /* If no power values are given, we assume it's 0 everywhere */
- XBT_DEBUG("No energetic profiles given for host %s, using 0 W by default.", host_->get_cname());
- for (int i = 0; i < host_->get_pstate_count(); ++i) {
- PowerRange range(0,0,0);
- power_range_watts_list_.push_back(range);
- }
+ XBT_WARN("No energetic profiles (wattage_per_state) given for host %s, using 0 W by default. Direct request of power/energy consumption of this host will fail.", host_->get_cname());
return;
}
boost::split(all_power_values, all_power_values_str, boost::is_any_of(","));
XBT_DEBUG("%s: power properties: %s", host_->get_cname(), all_power_values_str);
- xbt_assert(all_power_values.size() == (unsigned)host_->get_pstate_count(),
- "Invalid XML file. Found %zu energetic profiles for %d pstates", all_power_values.size(),
+ xbt_assert(all_power_values.size() == host_->get_pstate_count(),
+ "Invalid XML file. Found %zu energetic profiles for %lu pstates", all_power_values.size(),
host_->get_pstate_count());
int i = 0;
double epsilon_power;
double max_power;
- char* msg_idle = bprintf("Invalid Idle value for pstate %d on host %s: %%s", i, host_->get_cname());
- char* msg_epsilon = bprintf("Invalid Epsilon value for pstate %d on host %s: %%s", i, host_->get_cname());
- char* msg_max = bprintf("Invalid AllCores value for pstate %d on host %s: %%s", i, host_->get_cname());
+ auto msg_idle = xbt::string_printf("Invalid Idle value for pstate %d on host %s", i, host_->get_cname());
+ auto msg_epsilon = xbt::string_printf("Invalid Epsilon value for pstate %d on host %s", i, host_->get_cname());
+ auto msg_max = xbt::string_printf("Invalid AllCores value for pstate %d on host %s", i, host_->get_cname());
- idle_power = xbt_str_parse_double((current_power_values.at(0)).c_str(), msg_idle);
+ idle_power = xbt_str_parse_double((current_power_values.at(0)).c_str(), msg_idle.c_str());
if (current_power_values.size() == 2) { // Case: Idle:AllCores
- epsilon_power = xbt_str_parse_double((current_power_values.at(0)).c_str(), msg_idle);
- max_power = xbt_str_parse_double((current_power_values.at(1)).c_str(), msg_max);
+ epsilon_power = xbt_str_parse_double((current_power_values.at(0)).c_str(), msg_idle.c_str());
+ max_power = xbt_str_parse_double((current_power_values.at(1)).c_str(), msg_max.c_str());
} else { // Case: Idle:Epsilon:AllCores
- epsilon_power = xbt_str_parse_double((current_power_values.at(1)).c_str(), msg_epsilon);
- max_power = xbt_str_parse_double((current_power_values.at(2)).c_str(), msg_max);
+ epsilon_power = xbt_str_parse_double((current_power_values.at(1)).c_str(), msg_epsilon.c_str());
+ max_power = xbt_str_parse_double((current_power_values.at(2)).c_str(), msg_max.c_str());
}
XBT_DEBUG("Creating PowerRange for host %s. Idle:%f, Epsilon:%f, AllCores:%f.", host_->get_cname(), idle_power, epsilon_power, max_power);
PowerRange range(idle_power, epsilon_power, max_power);
power_range_watts_list_.push_back(range);
- xbt_free(msg_idle);
- xbt_free(msg_epsilon);
- xbt_free(msg_max);
++i;
}
+
+ has_pstate_power_values_ = true;
}
} // namespace plugin
} // namespace simgrid
static void on_action_state_change(simgrid::kernel::resource::CpuAction const& action,
simgrid::kernel::resource::Action::State /*previous*/)
{
- for (simgrid::kernel::resource::Cpu* const& cpu : action.cpus()) {
+ for (simgrid::kernel::resource::CpuImpl* const& cpu : action.cpus()) {
simgrid::s4u::Host* host = cpu->get_iface();
if (host != nullptr) {
// If it's a VM, take the corresponding PM
double sg_host_get_consumed_energy(const_sg_host_t host)
{
ensure_plugin_inited();
- return host->extension<HostEnergy>()->get_consumed_energy();
+ auto host_energy = host->extension<HostEnergy>();
+ xbt_assert(host_energy->has_pstate_power_values(), "No power range properties specified for host %s",
+ host->get_cname());
+ return host_energy->get_consumed_energy();
}
/** @ingroup plugin_host_energy
double sg_host_get_current_consumption(const_sg_host_t host)
{
ensure_plugin_inited();
- return host->extension<HostEnergy>()->get_current_watts_value();
+ auto host_energy = host->extension<HostEnergy>();
+ xbt_assert(host_energy->has_pstate_power_values(), "No power range properties specified for host %s",
+ host->get_cname());
+ return host_energy->get_current_watts_value();
}
