Load Balancing of Heterogeneous Workstation Cluster based on Relative Load Index

상대적 부하 색인을 기반으로 한 이기종 워크스테이션 클러스터의 부하 균형

  • 지병준 (한림정보산업대학 전산정보처리과) ;
  • 이광모 (한림대학교 컴퓨터공학과)
  • Published : 2002.04.01


The clustering environment with heterogeneous workstations provides the cost effectiveness and usability for executing applications in parallel. Load balancing is considered a necessary feature for a cluster of heterogeneous workstations to minimize the turnaround time. Previously, static load balancing that assigns a predetermined weight for the processing capability of each workstation, or dynamic approaches which execute a benchmark program to get relative processing capability of each workstation were proposed. The execution of the benchmark program, which has nothing to do with the application being executed, consumes the computation time and the overall turnaround time is delayed. In this paper, we present efficient methods for task distribution and task migration, based on the relative load index. We designed and implemented a load balancing system for the clustering environment with heterogeneous workstations. Turnaround times of our methods and the round-robin approach, as well as the load balancing method using a benchmark program, were compared. The experimental results show that our methods outperform all the other methods that we compared.


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