org.gridbus.broker.scheduler
Class RoundRobinScheduler

java.lang.Object
  extended by org.gridbus.broker.common.Scheduler
      extended by org.gridbus.broker.scheduler.RoundRobinScheduler
All Implemented Interfaces:
java.lang.Runnable, JobListener

public class RoundRobinScheduler
extends Scheduler

This class is a basic scheduler for the broker which implements a simple round-robin scheduling algorithm. It does not optimize on economy/QoS and does not take into account / work with data files

Author:
Krishna Nadiminti (kna@cs.mu.oz.au)

Field Summary
 
Fields inherited from class org.gridbus.broker.common.Scheduler
applicationID, failed, feasible, finished, numPoll, pollTime, store, timeStart, totalStats, userMarketDir, useSoftwareCost
 
Constructor Summary
RoundRobinScheduler(java.lang.String applicationID)
          Constructor for the scheduler
 
Method Summary
protected  void schedule()
          Abstract method: schedule to be implemented by derived classes which implement various scheduling algorithms.
 void statusChanged(Job job)
          Status changed event for a Job
 void statusChanged(org.gridbus.scs.common.SCSJob j)
          SCS Job : Tom
 
Methods inherited from class org.gridbus.broker.common.Scheduler
freeQueueSlot, getCandidateSCSServers, getCandidateServers, getJobStatsFromStore, getKey, getNextReadyJob, getNextReadySCSJob, getPollTime, getReadyServers, groupServers, isClassValid, isFailed, isFeasible, isFinished, isJobRequirementMet, isSCSJobRequirementMet, jobReset, run, saveJobMapping, saveJobMapping, saveStatusEvent, saveStatusEvent, setFailed, setFeasible, setFinished, sortByCost, sortByRunningJobs, sortByTime, updateJobStatus, updateQos, updateServerPerformance, updateStats
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

RoundRobinScheduler

public RoundRobinScheduler(java.lang.String applicationID)
                    throws GridBrokerException
Constructor for the scheduler

Parameters:
applicationID -
Throws:
GridBrokerException
Method Detail

schedule

protected void schedule()
Description copied from class: Scheduler
Abstract method: schedule to be implemented by derived classes which implement various scheduling algorithms.

Specified by:
schedule in class Scheduler
See Also:
org.gridbus.broker.farming.common.Scheduler#schedule()

statusChanged

public void statusChanged(Job job)
Description copied from interface: JobListener
Status changed event for a Job

Specified by:
statusChanged in interface JobListener
Overrides:
statusChanged in class Scheduler
See Also:
JobListener.statusChanged(org.gridbus.broker.common.Job)

statusChanged

public void statusChanged(org.gridbus.scs.common.SCSJob j)
Description copied from interface: JobListener
SCS Job : Tom

Specified by:
statusChanged in interface JobListener
Overrides:
statusChanged in class Scheduler
See Also:
JobListener.statusChanged(org.gridbus.broker.common.Job)

Copyright © The University of Melbourne. 2006