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An Efficient List Scheduling Algorithm in Distributed Heterogeneous Computing System  

Yoon, Wan-Oh (Dept. of Electronic Engineering Inha University)
Yoon, Jung-Hee (Dept. of Electronic Engineering Inha University)
Lee, Chang-Ho (Dept. of Electronic Engineering Inha University)
Gim, Hyo-Gi (Dept. of Electronic Engineering Inha University)
Choi, Sang-Bang (Dept. of Electronic Engineering Inha University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea CI / v.46, no.3, 2009 , pp. 86-95 More about this Journal
Abstract
Efficient DAG scheduling is critical for achieving high performance in heterogeneous computing environments. Finding an optimal solution to the problem of scheduling an application modeled by a directed acyclic graph(DAG) onto a set of heterogeneous machines is known to be an NP-complete problem. In this paper we propose a new list scheduling algorithm, called the Heterogeneous Rank-Path Scheduling(HRPS) algorithm, to exploit all of a program's available parallelism in distributed heterogeneous computing system. The primary goal of HRPS is to minimize the schedule length of applications. The performance of the algorithm has been observed by its application to some practical DAGs, and by comparing it with other existing scheduling algorithm such as CPOP, HCPT and FLB in term of the schedule length. The comparison studies show that HRPS significantly outperform CPOP, HCPT and FLB in schedule length.
Keywords
list scheduling; heterogeneous; DAG scheduling; parallel processing; speedup;
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