Wavefront Cache-friendly Algorithm for Compact Numerical Schemes

Abstract

This paper reports the performance of a parallel volume rendering algorithm for visualizing a large-scale unstructured-grid dataset produced by a three-dimensional aerodynamics simulation. This dataset, containing over 18 million tetrahedra, allows us to extend our performance results to a problem which is more than 30 times larger than the one we examined previously. This high resolution dataset also allows us to see fine, three-dimensional features in the flow field. All our tests were performed on the SGI/Cray T3E operated by NASA's Goddard Space Flight Center. Using 511 processors, a rendering rate of almost 9 million tetrahedra/second was achieved with a parallel overhead of 26%.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1999
Accession Number
ADA370411

Entities

People

  • Alex Povitsky

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Aerodynamics
  • Algorithms
  • Case Studies
  • Computational Fluid Dynamics
  • Computations
  • Computer Science
  • Computers
  • Conversion
  • Detection
  • Fluid Dynamics
  • High Lift
  • High Resolution
  • Leading Edges
  • Low Resolution
  • Simulations
  • Space Flight
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Computer Vision.
  • Parallel and Distributed Computing.

Technology Areas

  • Space