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arXiv 0903.1389cs.DCcs.NE
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基于线性规划驱动的遗传算法的电网综合调度

A Linear Programming Driven Genetic Algorithm for Meta-Scheduling on Utility Grids

Saurabh Garg, Pramod Konugurthi, Rajkumar Buyya

摘要:

网格中的用户级代理考虑单个应用的QoS需求,并在不考虑其他用户需求的情况下使其成本最小化。这会导致资源争用和次优调度。网格中的元调度旨在解决这个调度问题,这是NP难,由于其组合的性质。因此,除了传统的算法如Greedy和FCFS之外,已经提出了许多基于遗传算法的解决方案,使用遗传算法(GA)。我们提出了一个线性规划/并行规划模型(LP/IP)调度这些应用程序的多个资源。我们还提出了一种新的算法LPGA(线性规划驱动的遗传算法),它结合了LP和GA的能力。该算法的目的是获得最佳的元调度公用事业网格,最小化所有用户的联合成本在一个协调的方式。仿真结果表明,我们提出的综合算法提供了最好的时间表具有最小的处理成本可以忽略不计。

英文摘要:

The user-level brokers in grids consider individual application QoS requirements and minimize their cost without considering demands from other users. This results in contention for resources and sub-optimal schedules. Meta-scheduling in grids aims to address this scheduling problem, which is NP hard due to its combinatorial nature. Thus, many heuristic-based solutions using Genetic Algorithm (GA) have been proposed, apart from traditional algorithms such as Greedy and FCFS. We propose a Linear Programming/Integer Programming model (LP/IP) for scheduling these applications to multiple resources. We also propose a novel algorithm LPGA (Linear programming driven Genetic Algorithm) which combines the capabilities of LP and GA. The aim of this algorithm is to obtain the best metaschedule for utility grids which minimize combined cost of all users in a coordinated manner. Simulation results show that our proposed integrated algorithm offers the best schedule having the minimum processing cost with negligible time overhead.

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