-/* Copyright (c) 2010-2020. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2010-2021. 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. */
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()
{
init_watts_range_list();
const char* off_power_str = host_->get_property("wattage_off");
- if (off_power_str == nullptr) {
- off_power_str = host_->get_property("watt_off");
-
- static bool warned = false;
- if (off_power_str != nullptr && not warned) {
- warned = true;
- XBT_WARN("Please use 'wattage_off' instead of 'watt_off' to define the idle wattage of hosts in your XML.");
- }
- }
if (off_power_str != nullptr) {
try {
this->watts_off_ = std::stod(std::string(off_power_str));
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_) {
void HostEnergy::init_watts_range_list()
{
- const char* old_prop = host_->get_property("watt_per_state");
- if (old_prop != nullptr) {
- std::vector<std::string> all_power_values;
- boost::split(all_power_values, old_prop, boost::is_any_of(","));
-
- 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(),
- host_->get_pstate_count());
-
- // XBT_ATTRIB_DEPRECATED_v328: putting this macro name here so that we find it during the deprecation cleanups
- std::string msg = "DEPRECATION WARNING: Property 'watt_per_state' will only work until v3.28.\n";
- msg += std::string("The old syntax 'Idle:OneCore:AllCores' must be converted into 'Idle:Epsilon:AllCores' to "
- "properly model the consumption of non-whole tasks on mono-core hosts. Here are the values to "
- "use for host '") +
- host_->get_cname() + "' in your XML file:\n";
- msg += " <prop id=\"wattage_per_state\" value=\"";
- for (auto const& current_power_values_str : all_power_values) {
- std::vector<std::string> current_power_values;
- boost::split(current_power_values, current_power_values_str, boost::is_any_of(":"));
- double p_idle = xbt_str_parse_double((current_power_values.at(0)).c_str(),
- "Invalid obsolete XML file. Fix your watt_per_state property.");
- double p_full;
- double p_epsilon;
-
- if (current_power_values.size() == 3) {
- double p_one_core = xbt_str_parse_double((current_power_values.at(1)).c_str(),
- "Invalid obsolete XML file. Fix your watt_per_state property.");
- p_full = xbt_str_parse_double((current_power_values.at(2)).c_str(),
- "Invalid obsolete XML file. Fix your watt_per_state property.");
- if (host_->get_core_count() == 1) {
- p_epsilon = p_full;
- } else {
- p_epsilon = p_one_core - ((p_full - p_one_core) / (host_->get_core_count() - 1));
- }
- } else { // consumption given with idle and full only
- p_full = xbt_str_parse_double((current_power_values.at(1)).c_str(),
- "Invalid obsolete XML file. Fix your watt_per_state property.");
- if (host_->get_core_count() == 1) {
- p_epsilon = p_full;
- } else {
- p_epsilon = p_idle;
- }
- }
-
- PowerRange range(p_idle, p_epsilon, p_full);
- power_range_watts_list_.push_back(range);
-
- msg += std::to_string(p_idle) + ":" + std::to_string(p_epsilon) + ":" + std::to_string(p_full);
- msg += ",";
- }
- msg.pop_back(); // Remove the extraneous ','
- msg += "\" />";
- XBT_WARN("%s", msg.c_str());
- return;
- }
-
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;
}
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()) {
- simgrid::s4u::Host* host = cpu->get_host();
+ 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
const simgrid::s4u::VirtualMachine* vm = dynamic_cast<simgrid::s4u::VirtualMachine*>(host);
// that the next trigger would be the 2nd compute, hence ignoring the idle time
// during the recv call. By updating at the beginning of a compute, we can
// fix that. (If the cpu is not idle, this is not required.)
- simgrid::s4u::Exec::on_start.connect([](simgrid::s4u::Actor const&, simgrid::s4u::Exec const& activity) {
+ simgrid::s4u::Exec::on_start.connect([](simgrid::s4u::Exec const& activity) {
if (activity.get_host_number() == 1) { // We only run on one host
simgrid::s4u::Host* host = activity.get_host();
const simgrid::s4u::VirtualMachine* vm = dynamic_cast<simgrid::s4u::VirtualMachine*>(host);
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();
}
