Efficient task replication and management for adaptive fault tolerance in Mobile Grid environments
Efficient task replication and management for adaptive fault tolerance in Mobile Grid environments
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DOI：
10.1016/j.future.2006.04.014
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发表时间：
2007-02
期刊：
影响因子：
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通讯作者：
A. Litke;Dimitrios Skoutas;K. Tserpes;T. Varvarigou
中科院分区：
文献类型：
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作者：
A. Litke;Dimitrios Skoutas;K. Tserpes;T. Varvarigou
随着网格和移动的计算世界向移动的网格计算范式的融合，容错网格计算变得至关重要。我们提出了一个有效的计划，任务复制的基础上，利用威布尔可靠性函数的网格资源，以便估计的副本数量，将被调度，以保证一个特定的容错水平的网格环境。由复制产生的额外的工作量是由一个资源管理计划，这是基于背包制定，其目的是最大限度地提高利用率和利润的网格基础设施。所提出的模型已通过模拟评估，并已被用于在未来的移动的网格环境中的中间件方法的效率。
Fault tolerant Grid computing is of vital importance as the Grid and Mobile computing worlds converge to the Mobile Grid computing paradigm. We present an efficient scheme based on task replication, which utilizes the Weibull reliability function for the Grid resources so as to estimate the number of replicas that are going to be scheduled in order to guarantee a specific fault tolerance level for the Grid environment. The additional workload that is produced by the replication is handled by a resource management scheme which is based on the knapsack formulation and which aims to maximize the utilization and profit of the Grid infrastructure. The proposed model has been evaluated through simulation and has shown its efficiency for being used in a middleware approach in future mobile Grid environments.