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Feedback Re: Is it possible to change the geometry during the tracking of a particle? 

Keywords: Geometry
Forum: Geometry
Re: Question Is it possible to change the geometry during the tracking of a particle? (Wang Yue)
Re: Warning Re: Is it possible to change the geometry during the tracking of a particle? (John Apostolakis)
Re: None Re: Is it possible to change the geometry during the tracking of a particle? (Wang Yue)
Date: 20 Feb, 2007
From: John Apostolakis <John Apostolakis>

There is a likely and simple cause for what you see: the slow-down may be due to the optimisation you are using for the Parameterised volume.

Are you using "kUndefined" as the axis for applying the optimisation in the Parameterised Volume ? This enables optimization in all three axes, and is the recommended choice. In most cases it leads to performance very similar to that for placement volumes, with memory savings.

If you use one of the three Cartesian axes for the optimisation axis, we would expect much slower simulation for your case of a complex, 3-d structure.

This could certainly make the difference that you observe - and would be very easy to correct.

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