#include "energy.hpp"
#include "../cpu_cas01.hpp"
+#include "../virtual_machine.hpp"
/** @addtogroup SURF_plugin_energy
and then use the following function to retrieve the consumption of a given host: #MSG_host_get_consumed_energy().
*/
-XBT_LOG_EXTERNAL_CATEGORY(surf_kernel);
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_energy, surf,
"Logging specific to the SURF energy plugin");
-std::map<CpuPtr, CpuEnergyPtr> *surf_energy=NULL;
+std::map<Cpu*, CpuEnergy*> *surf_energy=NULL;
-static void energyCpuCreatedCallback(CpuPtr cpu){
+static void energyCpuCreatedCallback(Cpu *cpu){
(*surf_energy)[cpu] = new CpuEnergy(cpu);
}
-static void update_consumption_running(CpuPtr cpu, CpuEnergyPtr cpu_energy) {
+static void energyVMCreatedCallback(VirtualMachine* vm) {
+ std::map<Cpu*, CpuEnergy*>::iterator cpu_energy_it = surf_energy->find(vm->p_subWs->p_cpu);
+ xbt_assert(cpu_energy_it != surf_energy->end(), "The cpu is not in surf_energy.");
+ (*surf_energy)[vm->p_cpu] = cpu_energy_it->second;
+ cpu_energy_it->second->ref(); // protect the CpuEnergy from getting deleted too early
+}
+
+/* Computes the consumption so far. Called lazily on need. */
+static void update_consumption(Cpu *cpu, CpuEnergy *cpu_energy) {
double cpu_load = lmm_constraint_get_usage(cpu->getConstraint()) / cpu->m_powerPeak;
double start_time = cpu_energy->last_updated;
double finish_time = surf_get_clock();
double previous_energy = cpu_energy->total_energy;
- double energy_this_step = cpu_energy->getCurrentWattsValue(cpu_load)*(finish_time-start_time);
- cpu_energy->total_energy = previous_energy + energy_this_step;
- cpu_energy->last_updated = finish_time;
-
- XBT_DEBUG("[cpu_update_energy] period=[%.2f-%.2f]; current power peak=%.0E flop/s; consumption change: %.2f J -> %.2f J",
- start_time, finish_time, cpu->m_powerPeak, previous_energy, energy_this_step);
-}
-static void update_consumption_off(CpuPtr cpu, CpuEnergyPtr cpu_energy) {
- double start_time = cpu_energy->last_updated;
- double finish_time = surf_get_clock();
+ double instantaneous_consumption;
+ if (cpu->getState() == SURF_RESOURCE_OFF)
+ instantaneous_consumption = cpu_energy->watts_off;
+ else
+ instantaneous_consumption = cpu_energy->getCurrentWattsValue(cpu_load);
- double previous_energy = cpu_energy->total_energy;
- double energy_this_step = cpu_energy->watts_off*(finish_time-start_time);
+ double energy_this_step = instantaneous_consumption*(finish_time-start_time);
cpu_energy->total_energy = previous_energy + energy_this_step;
cpu_energy->last_updated = finish_time;
- XBT_DEBUG("[cpu_update_energy] off period=[%.2f-%.2f]; consumption change: %.2f J -> %.2f J",
- start_time, finish_time, previous_energy, energy_this_step);
+ XBT_DEBUG("[cpu_update_energy] period=[%.2f-%.2f]; current power peak=%.0E flop/s; consumption change: %.2f J -> %.2f J",
+ start_time, finish_time, cpu->m_powerPeak, previous_energy, energy_this_step);
}
-static void energyCpuDestructedCallback(CpuPtr cpu){
- std::map<CpuPtr, CpuEnergyPtr>::iterator cpu_energy_it = surf_energy->find(cpu);
+static void energyCpuDestructedCallback(Cpu *cpu){
+ std::map<Cpu*, CpuEnergy*>::iterator cpu_energy_it = surf_energy->find(cpu);
xbt_assert(cpu_energy_it != surf_energy->end(), "The cpu is not in surf_energy.");
- CpuEnergyPtr cpu_energy = cpu_energy_it->second;
- if (cpu->getState() == SURF_RESOURCE_OFF)
- update_consumption_off(cpu, cpu_energy);
- else
- update_consumption_running(cpu, cpu_energy);
+ CpuEnergy *cpu_energy = cpu_energy_it->second;
+ update_consumption(cpu, cpu_energy);
- XBT_INFO("Total energy of host %s: %f Joules", cpu->getName(), cpu_energy->getConsumedEnergy());
- delete cpu_energy_it->second;
+ if (cpu_energy_it->second->refcount == 1) // Don't display anything for virtual CPUs
+ XBT_INFO("Total energy of host %s: %f Joules", cpu->getName(), cpu_energy->getConsumedEnergy());
+ cpu_energy_it->second->unref();
surf_energy->erase(cpu_energy_it);
}
-static void energyCpuActionStateChangedCallback(CpuActionPtr action, e_surf_action_state_t old, e_surf_action_state_t cur){
- CpuPtr cpu = getActionCpu(action);
- CpuEnergyPtr cpu_energy = (*surf_energy)[cpu];
+static void energyCpuActionStateChangedCallback(CpuAction *action, e_surf_action_state_t old, e_surf_action_state_t cur){
+ Cpu *cpu = getActionCpu(action);
- if(cpu_energy->last_updated < surf_get_clock()) {
- update_consumption_running(cpu, cpu_energy);
- }
+ CpuEnergy *cpu_energy = (*surf_energy)[cpu];
+
+ if(cpu_energy->last_updated < surf_get_clock())
+ update_consumption(cpu, cpu_energy);
}
-static void energyStateChangedCallback(CpuPtr cpu, e_surf_resource_state_t oldState, e_surf_resource_state_t newState){
- CpuEnergyPtr cpu_energy = (*surf_energy)[cpu];
+static void energyStateChangedCallback(Cpu *cpu, e_surf_resource_state_t oldState, e_surf_resource_state_t newState){
+ CpuEnergy *cpu_energy = (*surf_energy)[cpu];
- if(cpu_energy->last_updated < surf_get_clock()) {
- if (oldState == SURF_RESOURCE_OFF)
- update_consumption_off(cpu, cpu_energy);
- else
- update_consumption_running(cpu, cpu_energy);
- }
+ if(cpu_energy->last_updated < surf_get_clock())
+ update_consumption(cpu, cpu_energy);
}
static void sg_energy_plugin_exit()
*/
void sg_energy_plugin_init() {
if (surf_energy == NULL) {
- surf_energy = new std::map<CpuPtr, CpuEnergyPtr>();
+ surf_energy = new std::map<Cpu*, CpuEnergy*>();
surf_callback_connect(cpuCreatedCallbacks, energyCpuCreatedCallback);
+ surf_callback_connect(VMCreatedCallbacks, energyVMCreatedCallback);
surf_callback_connect(cpuDestructedCallbacks, energyCpuDestructedCallback);
surf_callback_connect(cpuActionStateChangedCallbacks, energyCpuActionStateChangedCallback);
surf_callback_connect(surfExitCallbacks, sg_energy_plugin_exit);
/**
*
*/
-CpuEnergy::CpuEnergy(CpuPtr ptr)
- : cpu(ptr)
+CpuEnergy::CpuEnergy(Cpu *ptr)
{
+ cpu = ptr;
total_energy = 0;
power_range_watts_list = getWattsRangeList();
last_updated = surf_get_clock();
xbt_dynar_free(&power_range_watts_list);
}
+
+double CpuEnergy::getWattMinAt(int pstate) {
+ xbt_dynar_t power_range_list = power_range_watts_list;
+ xbt_assert(power_range_watts_list, "No power range properties specified for host %s", cpu->getName());
+ xbt_dynar_t current_power_values = xbt_dynar_get_as(power_range_list, static_cast<CpuCas01*>(cpu)->getPState(), xbt_dynar_t);
+ double min_power = xbt_dynar_get_as(current_power_values, 0, double);
+ return min_power;
+}
+double CpuEnergy::getWattMaxAt(int pstate) {
+ xbt_dynar_t power_range_list = power_range_watts_list;
+ xbt_assert(power_range_watts_list, "No power range properties specified for host %s", cpu->getName());
+ xbt_dynar_t current_power_values = xbt_dynar_get_as(power_range_list, static_cast<CpuCas01*>(cpu)->getPState(), xbt_dynar_t);
+ double max_power = xbt_dynar_get_as(current_power_values, 1, double);
+ return max_power;
+}
+
/**
* Computes the power consumed by the host according to the current pstate and processor load
*
double CpuEnergy::getCurrentWattsValue(double cpu_load)
{
xbt_dynar_t power_range_list = power_range_watts_list;
-
- if (power_range_list == NULL)
- {
- XBT_DEBUG("No power range properties specified for host %s", cpu->getName());
- return 0;
- }
- /*xbt_assert(xbt_dynar_length(power_range_list) == xbt_dynar_length(cpu->p_powerPeakList),
- "The number of power ranges in the properties does not match the number of pstates for host %s",
- cpu->getName());*/
+ xbt_assert(power_range_watts_list, "No power range properties specified for host %s", cpu->getName());
/* retrieve the power values associated with the current pstate */
- xbt_dynar_t current_power_values = xbt_dynar_get_as(power_range_list, static_cast<CpuCas01Ptr>(cpu)->getPState(), xbt_dynar_t);
+ xbt_dynar_t current_power_values = xbt_dynar_get_as(power_range_list, static_cast<CpuCas01*>(cpu)->getPState(), xbt_dynar_t);
/* min_power corresponds to the idle power (cpu load = 0) */
/* max_power is the power consumed at 100% cpu load */
double CpuEnergy::getConsumedEnergy()
{
- if(last_updated < surf_get_clock()) {
- if (cpu->getState() == SURF_RESOURCE_OFF)
- update_consumption_off(cpu, this);
- else
- update_consumption_running(cpu, this);
- }
- return total_energy;
+
+ if(last_updated < surf_get_clock())
+ update_consumption(cpu, this);
+ return total_energy;
+
}
xbt_dynar_t CpuEnergy::getWattsRangeList()