Performance Analysis of a NOW According to the Number of Processes and Execution Time

프로세스의 수와 실행시간에 따른 NOW의 성능 분석

  • 조수현 ;
  • 김영학
  • Published : 2002.09.01

Abstract

Recently, instead of a high-cost supercomputer, there haws been widely used a NOW system that consists of low-cost PCs and workstations connected all over the network In a NOW, performance for parallel processing depends on the computation pouter of each computer and communication time. Currently, a lot of methods have been proposed in order to increase the performance of parallel processing. However, the previous results have been studied in the view of balancing work load as the computation pouter of each computer. If a computer has multiple work precesses in a NOW, we can predict a decrease of communication tire needed in message passing, Therefore, in this paper, we analyzes factors of improving the performance in the view of work precesses, and evaluates experimently an effect on total performance as the number of work processes increases. Also, we propose a new broadcasting method to be used in experiment of this paper. This paper uses the LAM/MPI for an experimental evaluation.

Keywords

NOW;MPI;Broadcasting;Load Sharing;Work Process