OptorSim-A Grid Simulator for Studying Dynamic Data Replication Strategies
OptorSim-A Grid Simulator for Studying Dynamic Data Replication Strategies
复制标题
DOI：
--
复制
发表时间：
2003
影响因子：
4.9
通讯作者：
William H. Bell;D. Cameron;A. P. Millar;L. Capozza;Kurt Stockinger;F. Zini
中科院分区：
文献类型：
--
作者：
William H. Bell;D. Cameron;A. P. Millar;L. Capozza;Kurt Stockinger;F. Zini
计算网格处理小数据集上的大型计算密集型问题。相比之下，数据网格处理大型计算问题，这些问题反过来需要评估，挖掘和生成大量数据。复制，创建地理上完全相同的数据副本，被认为是减少数据访问成本的主要优化技术之一。本文讨论了几种复制算法。这些算法进行了研究，使用网格模拟器：OptorSim。OptorSim提供了一个模块化的框架，可以在不同的网格配置下研究优化策略。我们的目标是探索选定的优化技术的稳定性和瞬态行为。我们详细介绍了OptorSim的设计和实现，并分析了基于不同网格工作负载的各种复制算法。
Computational Grids process large, computationally intensive problems on small data sets. In contrast, Data Grids process large computational problems that in turn require evaluating, mining and producing large amounts of data. Replication, creating geographically disparate identical copies of data, is regarded as one of the major optimisation techniques for reducing data access costs. In this paper, several replication algorithms are discussed. These algorithms were studied using the Grid simulator: OptorSim. OptorSim provides a modular framework within which optimisation strategies can be studied under different Grid configurations. The goal is to explore the stability and transient behaviour of selected optimisation techniques. We detail the design and implementation of OptorSim and analyse various replication algorithms based on different Grid workloads.