A Parallel Multigrid Solver for Viscous Flows on Anisotropic Structured Grids

Abstract

This paper presents an efficient parallel multigrid solver for speeding up the computation of a 3-D model that treats the flow of a viscous fluid over a flat plate. The main interest of this simulation lies in exhibiting some basic difficulties that prevent optimal multigrid efficiencies from being achieved. As the computing platform, we have used Coral,aBeowulf-class system based on Intel Pentium processors and equipped with GigaNet cLAN and switched Fast Ethernet networks. Our study not only examines the scalability of the solver but also includes a performance evaluation of Coral where the investigated solver has been used to compare several of its design choices, namely, the interconnection network (GigaNet versus switched Fast-Ethernet) and the node configuration (dual nodes versus single nodes). As a reference, the performance results have been compared with those obtained with the NAS-MG benchmark.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2001
Accession Number
ADA396998

Entities

People

  • Ignacio M. Llorente
  • Manuel Prieto
  • Ruben S. Montero

Organizations

  • Complutense University of Madrid

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Bandwidth
  • Boundaries
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computational Science
  • Computations
  • Computer Science
  • Computers
  • Electronic Mail
  • Equations
  • Measurement
  • Navier Stokes Equations
  • Simulations
  • Three Dimensional
  • Two Dimensional
  • Viscous Flow

Readers

  • Computational Fluid Dynamics (CFD)
  • Computer Networking