[Users] shrinking of computational domain at recovery

[Ian Hinder]

On 26 Mar 2012, at 09:43, Kentaro Takami wrote:

> Hi,
> 
> I want to shrink the computational domain at recovery from checkpoint.
> For example, I want to change the domain from initial domain size:
> 
> coordbase::xmin   =  0.0
> coordbase::xmax   = 50.00
> coordbase::ymin   = 0.0
> coordbase::ymax   = 50.0
> coordbase::zmin   =   0.0
> coordbase::zmax   = 50.00
> 
> to
> 
> coordbase::xmin   =  0.0
> coordbase::xmax   = 30.00
> coordbase::ymin   = 0.0
> coordbase::ymax   = 30.0
> coordbase::zmin   =   0.0
> coordbase::zmax   = 30.00
> 
> Is it possible?
> Is there already such a mechanism?

As far as I know this is not possible using checkpoint/recovery.  You might be able to use the "file reader" mechanism to make CarpetIOHDF5 read data from the checkpoint files as new "initial" data, and in that case, I think the grid does not have to be identical, though the points have to line up (there is no interpolation).  I'm not sure how to use this method -- maybe someone else can help with that.

-- 
Ian Hinder
http://numrel.aei.mpg.de/people/hinder