load_sharing - LOAD SHARING www..blogspot.com Base Papers...

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LO'2A*5D S9H'2AR:IN8G \]\]\]\]\]\]DUVUTU\]\]JWXWUVUTUNOSTYZYZUVUWXWJXYXJSTYZYZDYZYZNOTUSTTUSTDEQRTULXYXUVUTUYZYZDHTURS
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(3Base Papers ● “6Epoch load sharing” by 9Helen *5D° Kartza and Ralph )4C° 9Hilzer° ● “6Effective Load Sharing on 9Heterogeneous Networks of Workstations” by Li Xiao± Xiaodong Zhang and Yanxia Qu°
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Objectives ● *5Define “Load Sharing”° ● What is 6Epoch Load Sharing%0 ● *5Define other load sharing strategies° ● )4Comparison° ● 6Examine Load Sharing in 9Heterogeneous Networks of Workstations° ● )4Compare all the techniques available°
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*5Definition ● Load balancing is to divide work evenly among the processors° ● Load sharing is to ensure that no processor remains idle when there are other heavily loaded processors in the system°
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'2Algorithms ● With sender²initiated algorithms± load² distribution activity is initiated when an over²loaded node ³sender´ tries to send a task to another under²loaded node ³receiver´° ● :In receiver²initiated algorithms± load² distribution is initiated by an under²loaded node ³receiver´± when it requests a task from an over²loaded node ³sender´°
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Scheduling Policies ● Static ● *5Dynamic or '2Adaptive ● Probabilistic ● *5Deterministic
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Static Policy ● Scheduling policies that use information about the average behavior of the system and ignore the current state± are called static policies° ● The principle advantage of static policies is simplicity± since they do not require the maintenance and processing of system state information°
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