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Low Communication Parallel Multigrid

A Fine Level Approach
  • Marcus Mohr
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1900)

Abstract

The most common technique for the parallelization of multi- grid methods is grid partitioning. For such methods Brandt and Diskin have suggested the use of a variant of segmental refinement in order to re- duce the amount of inter-processor communication. A parallel multigrid method with this technique avoids all communication on the finest grid levels. This article will examine some features of this class of algorithms as compared to standard parallel multigrid methods. In particular, the communication pattern will be analyzed in detail.

Keywords

elliptic pde parallel multigrid domain decomposition communication cost 

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Marcus Mohr
    • 1
  1. 1.System Simulation Group of the Computer Science DepartmentFriedrich-Alexander-University ErlangenNurembergGermany

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