CGAL users discussion list

[Sylvain Pion <>]

Hi,

Ding wrote:
> There are some statements saying that CGAL can perform 3D DT of 1M random
> points under 20 sec (13 or 16 sec). However, I tried the example provided in
> the CGAL manual, 3D DT of only 0.125M points took 52.59 sec on a 2.13 GHz Core
> 2 Duo computer with 2G memory (Mac OSX 10.5). So I'm just wondering if any
> options need to be set for better performance. Thank you! 

You are not using random points.
Points on a grid may exhibit worse performance than random distributions.

Moreover, you do not mention the compiler optimization you use.
Best is something like -O2 -DNDEBUG.

--
Sylvain Pion
INRIA Sophia-Antipolis
Geometrica Project-Team
CGAL, http://cgal.org/

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