source: DCWoRMS/trunk/src/test/article/recs/plugins/timeestimation/RecsTimeEstimationPlugin.java @ 661

package test.article.recs.plugins.timeestimation;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Map;
import java.util.MissingResourceException;
import java.util.PropertyResourceBundle;
import java.util.ResourceBundle;

import schedframe.events.scheduling.SchedulingEvent;
import schedframe.resources.computing.Core;
import schedframe.resources.computing.Processor;
import schedframe.resources.units.PEUnit;
import schedframe.resources.units.ProcessingElements;
import schedframe.resources.units.ResourceUnit;
import schedframe.resources.units.ResourceUnitName;
import schedframe.resources.units.StandardResourceUnitName;
import test.article.recs.utils.AppType;
import test.article.recs.utils.TaskToApp;
import dcworms.schedframe.scheduling.ExecTask;
import example.timeestimation.BaseTimeEstimationPlugin;

public class RecsTimeEstimationPlugin extends BaseTimeEstimationPlugin{

        private static String TIME_DATA_FILE_NAME = "src/test/article/recs/data/time_data.properties";
        private static int TIME_FACTOR = 20;
        
        private ResourceBundle timeBundle;
        
        private TaskToApp taskToApp = new TaskToApp();

        public double execTimeEstimation(SchedulingEvent event, ExecTask task,
                        Map<ResourceUnitName, ResourceUnit> allocatedResources,
                        double completionPercentage) {
                
                double execTime;
                
                PEUnit peUnit = (PEUnit) allocatedResources.get(StandardResourceUnitName.PE);
                
                String query = createQuery(task, peUnit);
                try {
                        execTime = TIME_FACTOR * (1 - completionPercentage/100) * getMeasuredTime(query);
                        if (Double.compare(execTime, 0.001) < 0) {
                                execTime = 0.001;
                        }
                        execTime = Math.round(execTime);
                } catch (FileNotFoundException e) {
                        execTime = defaultEstimation(task, peUnit, completionPercentage);
                } catch (IOException e) {
                        execTime = defaultEstimation(task, peUnit, completionPercentage);
                } catch(MissingResourceException e){
                        execTime = defaultEstimation(task, peUnit, completionPercentage);
                }

                return execTime;
        }

        private String createQuery(ExecTask task, PEUnit peUnit) {
                String query;
                query = getApplicationType(task) + "." + getNodeCategory(peUnit) + "." + getFrequency(peUnit) + "." + getCoreCnt(task);
                return query;
        }

        private String getApplicationType(ExecTask task){       
                AppType appType = taskToApp.getAppType(task);
                return appType.toString();
        }
        
        private String getNodeCategory(PEUnit peUnit){
                
                ProcessingElements pe = (ProcessingElements) peUnit;
                Core core = (Core)pe.get(0);
                return core.getParent().getParent().getCategory();
        }
        
        private int getFrequency(PEUnit peUnit){
                ProcessingElements pe = (ProcessingElements) peUnit;
                Core core = (Core)pe.get(0);
                Processor proc = (Processor) core.getParent();
                double freq;
                try{
                        freq = proc.getPowerInterface().getFrequency();
                } catch(Exception e){
                        freq = 800;
                }
                return Double.valueOf(freq).intValue();
                
        }
        
        private int getCoreCnt(ExecTask task){  
                double cpuReq;
                try {
                        cpuReq = task.getCpuCntRequest();
                } catch (NoSuchFieldException e) {
                                cpuReq = 1;
                }
                return Double.valueOf(cpuReq).intValue();
        }
        
        private double getMeasuredTime(String query) throws FileNotFoundException, IOException{
                ResourceBundle timeBundle = getTimeBundle();
                return Double.valueOf(timeBundle.getString(query)).doubleValue();
        }

        private ResourceBundle getTimeBundle() throws FileNotFoundException, IOException{
                if(timeBundle == null){
                        timeBundle = new PropertyResourceBundle(new FileInputStream(TIME_DATA_FILE_NAME));
                }
                return timeBundle;
        }

        private double defaultEstimation(ExecTask task,
                        PEUnit peUnit,
                        double completionPercentage){
                int speed = peUnit.getSpeed();
                int cnt = peUnit.getUsedAmount();

                double remainingLength =  task.getLength() * (1 - completionPercentage/100);
                
                double execTime = (remainingLength / (cnt * speed));
                if (Double.compare(execTime, 0.001) < 0) {
                        execTime = 0.001;
                }
                execTime = Math.round(execTime);
                return execTime;
        }
}