H-BSP: A Hierarchical BSP Computation Model

  • Authors:
  • Hojung Cha;Dongho Lee

  • Affiliations:
  • Department of Computer Science, Kwangwoon University, Seoul, 139-701 Korea hojungc@cs.kwangwoon.ac.kr;Department of Computer Science, Kwangwoon University, Seoul, 139-701 Korea

  • Venue:
  • The Journal of Supercomputing
  • Year:
  • 2001

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Abstract

This paper presents a new parallel computing model, called H-BSP, which adds a hierarchical concept to the BSP(Bulk Synchronous Parallel) computing model. An H-BSP program consists of a number of BSP groups which are dynamically created at run time and executed in a hierarchical fashion. H-BSP allows algorithm designers to develop more efficient algorithms by utilizing processor locality in the program. Based on the distributed memory model, H-BSP provides a group-based programming paradigm and supports Divide & Conquer algorithms efficiently. This paper describes the structure of the H-BSP model, complexity analysis and some examples of H-BSP algorithm. Also presented is the performance characteristics of H-BSP algorithms based on the simulation analysis. Simulation results show that H-BSP takes advantages of processor locality and performs well in low bandwidth networks or in a constant-valence architecture such as 2-dimensional mesh. It is also proved that H-BSP can predict algorithm performance better than BSP, due to its locality-preserving nature.