source: DCWoRMS/branches/coolemall/src/experiments/simpat2014/models/basic/CpuEnergyEstimationPlugin.java @ 1500

package experiments.simpat2014.models.basic;

import schedframe.resources.StandardResourceType;
import schedframe.resources.computing.Processor;
import schedframe.resources.computing.profiles.energy.ResourceEvent;
import schedframe.resources.devices.Device;
import schedframe.resources.devices.Fan;
import schedframe.resources.devices.PhysicalResource;
import schedframe.scheduling.manager.tasks.JobRegistry;
import simulator.DataCenterWorkloadSimulator;
import eduni.simjava.Sim_system;
import example.energy.BaseEnergyEstimationPlugin;
import experiments.simpat2014.EnvironmentConditions;
import gridsim.dcworms.DCWormsTags;

public class CpuEnergyEstimationPlugin extends BaseEnergyEstimationPlugin {

        private static double Pidle = 4;
        private static double Pfull = 50;

        private static int Tidle = 33;
        
        private double timestamp = 0;
        private double old_temperature = Tidle;
        private double new_temperature = -1;
        private double objective_temperature = Tidle;
        
        private boolean fan = false;
        
        private double next_timer = -1;    
        
        private int cpu_temp_monitor = 0;
        public double estimatePowerConsumption(ResourceEvent event, JobRegistry jobRegistry,
                        PhysicalResource resource) {
                double powerConsumption = 0;

                Processor cpu = (Processor)resource;
                powerConsumption = Pidle + (Pfull- Pidle) * cpu.getLoadInterface().getRecentUtilization().getValue()/100;                       

                return powerConsumption;
        }
        
        @Override
        public double estimateTemperature(ResourceEvent event, JobRegistry jobRegistry, PhysicalResource resource) {
                double future = -1;

                Processor cpu = (Processor) resource;

                double R = 0;
                double Rb = 0;
                double Rcv = 0;
                try{
                        Rb = Double.valueOf(cpu.getPowerInterface().getParameters().get("thermalResistance").get(0).getContent()).doubleValue();
                } catch (Exception e){
                        //
                }
                
                double k = 0;
                try{
                        k = Double.valueOf(cpu.getPowerInterface().getParameters().get("k").get(0).getContent()).doubleValue();
                } catch (Exception e){
                        //
                }
                
                double a = 0;
                try{
                        a = Double.valueOf(cpu.getPowerInterface().getParameters().get("a").get(0).getContent()).doubleValue();
                } catch (Exception e){
                        a = 1;
                }

                double V = 0;
        
                for(Device device: cpu.getParent().getResourceCharacteristic().getDevices()){
                        if(device.getType().equals(StandardResourceType.Fan)){
                                Fan fan = (Fan) device;
                                V = fan.getAirflowInterface().getRecentAirflow().getValue();
                        }
                }

                Rcv =  1/ (k * Math.pow(V, a));
                R = Rb + Rcv; 
                
                double C = 0;
                try{
                        C = Double.valueOf(cpu.getPowerInterface().getParameters().get("thermalCapacity").get(0).getContent()).doubleValue();
                } catch (Exception e){
                        //
                }
                // 1) look where we are
                double delta_t = Sim_system.clock() - timestamp;
                /***************model1*************/
                //new_temperature = objective_temperature - (objective_temperature - old_temperature) * Math.exp(-delta_t/sink);
                
                /***************model2*************/
                new_temperature = objective_temperature - (objective_temperature - old_temperature) * Math.exp(-delta_t/(R * C));
                 

                // 2) calculate if fan is needed ?
                if(new_temperature <= EnvironmentConditions.TFanLow) {
                        fan = false;
                }
                if(new_temperature >= EnvironmentConditions.TFanHigh) {
                        fan = true; 
                }
                
                // 3) compute new objective
                double Tin = EnvironmentConditions.ROOM_TEMPERATURE;
                double Pcpu = cpu.getPowerInterface().getRecentPowerUsage().getValue();
                new_temperature = objective_temperature - (objective_temperature - old_temperature) * Math.exp(-delta_t/(R * C));
                //new_temperature = (Pcpu * R + Tin) - (Pcpu * R + Tin - Tidle) * Math.exp(-Sim_system.clock()/(R * C));;
                
                /***************model1 - GEO1*************/
                //double cpuLoad = cpu.getLoadInterface().getRecentUtilization().getValue();
                //double targetTemp = Tidle + cpuLoad/100 * dTfull;
                //if(fan) {
                //      targetTemp = targetTemp - dTfan;
                //}
                
                
                /***************model2 - GEO2*************/
                //Node node = (Node) cpu.getParent();
                //Pserv = node.getPowerInterface().getRecentPowerUsage().getValue();
                //double targetTemp = Pcpu * R + Tin; 
                
                /***************model3 - GEO1 + GEO2*************/
                /*double targetTemp = Pcpu * R + Tin; 
                if(fan) {
                        targetTemp = targetTemp - dTfan;
                }*/
        
                /***************model4 - WP*************/
                double targetTemp = Pcpu * R + Tin; 
                
                // 4) check if we will need to tune fans
                if(fan && targetTemp < EnvironmentConditions.TFanLow) {
                        double timer = C * R * Math.log((new_temperature - targetTemp)/(targetTemp - EnvironmentConditions.TFanLow));
                        if(future == -1 || future > timer) {
                                future = timer;
                        }
                }
                if(!fan && targetTemp > EnvironmentConditions.TFanHigh) {
                        double timer = C * R * Math.log((new_temperature - targetTemp)/(targetTemp - EnvironmentConditions.TFanHigh));
                        if(future == -1 || future > timer) {
                                future = timer;
                        }
                }

                // 5) save everything
                timestamp = Sim_system.clock();
                old_temperature = new_temperature;
                objective_temperature = targetTemp;


                if((future >= 0) && ((next_timer < Sim_system.clock()) || (next_timer >= future + Sim_system.clock()))) {
                        //DataCenterWorkloadSimulator.getEventManager().sendToAllSchedulers(future, DCWormsTags.FANMGT, "Test");
                        next_timer = future + Sim_system.clock() - 0.01;
                }               
                
                if(new_temperature > EnvironmentConditions.tempLevelMedium2Low && new_temperature < EnvironmentConditions.tempLevelLow2Medium){
                        if(cpu_temp_monitor != 1){
                                cpu_temp_monitor = 1;
                                DataCenterWorkloadSimulator.getEventManager().sendToAllSchedulers(0, DCWormsTags.RESOURCE_TEMPERATURE_LIMIT_EXCEEDED, resource.getFullName());
                        }
                } else if(new_temperature > EnvironmentConditions.tempLevelLow2Medium && new_temperature < EnvironmentConditions.tempLevelHigh2Medium){
                        if(cpu_temp_monitor != 2){
                                cpu_temp_monitor = 2;
                                DataCenterWorkloadSimulator.getEventManager().sendToAllSchedulers(0, DCWormsTags.RESOURCE_TEMPERATURE_LIMIT_EXCEEDED, resource.getFullName());
                        }
                } else if(new_temperature > EnvironmentConditions.tempLevelHigh2Medium && new_temperature < EnvironmentConditions.tempLevelMedium2High){
                        if(cpu_temp_monitor != 3){
                                cpu_temp_monitor = 3;
                                DataCenterWorkloadSimulator.getEventManager().sendToAllSchedulers(0, DCWormsTags.RESOURCE_TEMPERATURE_LIMIT_EXCEEDED, resource.getFullName());
                        }
                } else if(new_temperature > EnvironmentConditions.tempLevelMedium2High){
                        if(cpu_temp_monitor != 4){
                                cpu_temp_monitor = 4;
                                DataCenterWorkloadSimulator.getEventManager().sendToAllSchedulers(0, DCWormsTags.RESOURCE_TEMPERATURE_LIMIT_EXCEEDED, resource.getFullName());
                        }
                }
                //DataCenterWorkloadSimulator.getEventManager().sendToAllSchedulers(0, DCWormsTags.RESOURCE_TEMPERATURE_LIMIT_EXCEEDED, resource.getFullName());

                return new_temperature;
        }
}