[Users] cctk_lsh and ghost points

Ian Hinder ian.hinder at aei.mpg.de
Thu May 10 00:46:05 CDT 2012

On 10 May 2012, at 06:50, Petr Tsatsin wrote:

> I have a very basic question about ghost points in Cactus. Is the cctk_lsh contains the size of the local grid with ghost points or not?

Yes.  It the the number of points on the local component.  You should exclude cctk_nghostzones[i] points from each face of the grid if you want to loop over only interior points.  There are macros in cctk_Loop.h to help with this.

Ian Hinder

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