An analysis and comparison taking into account the performance of a
whole-application are presented. It should be noted that for high
precision simulations it is essential to model the simulation domain
as exactly as possible. The accuracy and efficiency of a finite
element or a finite volume simulation strongly depends on the quality
of the tessellation of the domain. Figure 9.11 presents
the structure under investigation with a coarse mesh for the following
performance analysis. In order to obtain sufficiently accurate
results, the mesh size typically has to be in the order of
to
some
nodes.
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Based on these observations of restrictions due to limited resources,
the influence of a problem's size on the overall performance is also
illustrated. The given test structure with different levels of mesh
refinement is used for analysis. By resolving a three-dimensional
simulation domain, the large number of points easily leads to severe
problems caused by memory bandwidth restrictions (Figure
9.12).
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