On 3 Nov 2017, at 09:22, Chris Stevens <[email protected]> wrote:
> Hi Ian,
>
> thanks for the quick reply.
>
> SCHEDULE WorldTubeExtract_TEST AT CCTK_INITIAL AFTER
> WorldTubeExtract_RegisterSlices
> {
> LANG: C
> OPTIONS: LEVEL
> } "TEST"
>
> Also the output of Carpet::is_global_mode() is 0 so definitely not in global
> mode.
>
Hi,
The problem is that it is in level mode ("OPTIONS: LEVEL"). Level mode is
called once per refinement level, and on each refinement level, there may be
multiple components (rectangular blocks of grid points). A function scheduled
in level mode can access quantities which are defined on a given refinement
level (or, for example, call interpolation or reduction functions for that
level), but not those that are defined on a given component, for example
accessing grid data like gridfunctions. When you schedule a function in local
mode ("OPTIONS: LOCAL"), it is called once per component, and then you can
access grid data.
I spent hours recently trying to track down exactly this problem!
--
Ian Hinder
http://members.aei.mpg.de/ianhin
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