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Computational Science, Engineering & Technology Series
ISSN 1759-3158 CSETS: 4
HIGH PERFORMANCE COMPUTING FOR COMPUTATIONAL MECHANICS Edited by: B.H.V. Topping, L. Lämmer
Chapter 1
Parallel Visualisation of Computational Engineering Data J.W. Jones and N.P. Weatherill
Department of Civil Engineering, University of Wales Swansea, United Kingdom J.W. Jones, N.P. Weatherill, "Parallel Visualisation of Computational Engineering Data", in B.H.V. Topping, L. Lämmer, (Editors), "High Performance Computing for Computational Mechanics", Saxe-Coburg Publications, Stirlingshire, UK, Chapter 1, pp 1-14, 2000. doi:10.4203/csets.4.1
Abstract
A framework in which computational engineering data is visualised
and manipulated using parallel processing techniques is presented. Obviously,
the parallelisation of the computational simulation process has started by focusing
on the most compute-intensive stages first. In the visualisation field, the
most compute-intensive process is the solution post-processing stage. Even for
a reasonably small mesh (500,000-2 million tetrahedral elements), a number of
post-processing techniques (for example, calculating iso-surfaces, flow streamlines,
contours, etc.) can require a large amount of processing power. In order
to produce graphically interactive displays a number of techniques have been
used to distribute the processing amongst more than one processor. However,
when applying computational simulation techniques to complex aerospace configurations
the sheer size of the meshes poses extra problems for the visualisation
process. Today, meshes ranging from 5 to 20 million elements are commonplace,
with 50-100 million elements becoming possible. The memory and processing
requirements of meshes of this size means that producing interactive displays using
a single graphics workstation is virtually impossible. A number of techniques
are investigated and a prototype implementation is demonstrated.
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