[Users] adding inner refinement levels with Carpet

[Miguel Zilhão]

hi Roland,

this seems to do what i was looking for. i'll try it out and report back if i encounter any 
difficulties.

thanks!
Miguel

On 22/02/17 15:31, Roland Haas wrote:
> Hello Miguel,
>
>> i was wondering whether there is a way to add inner refinement levels with CarpetRegrid2
>> (or CarpetRegrid) as a simulation progresses.
>> let's say that i have some configuration that collapses to a black hole, and i want to
>> keep resolving accurately the inner region. is there some way for me to tell CarpetRegrid
>> to add inner levels whenever a certain condition is fulfilled, ie, enough time elapses, or
>> some grid quantity (like the lapse) grows beyond a certain value?
> The easiest way is likely to use the Triggers thorn (in
> CactusUtils/Triggers). See
> http://einsteintoolkit.org/gallery/bns/nsnstohmns.par in http://einsteintoolkit.org/gallery/bns/index.html for an example when simulating neutron stars.
>
> Yours,
> Roland
>
>
>
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