[MITgcm-support] changing the number of tiles

[Baylor Fox-Kemper]

Hi Paola,
   There is a little program: utils/matlab/interpickups.m, that I  
wrote a while back (and I think works with the present version of the  
code).  It takes a bunch of mnc input pickup files with one tiling  
and a bunch of mnc output pickup files with a different tiling, and  
interpolates between them in a simple way.  This way you can coarsen  
or fine-grain a set of pickup files to restart with a different  
tiling or even a different resolution.  If the number of gridpoints  
in the input and outputs is the same, it shouldn't change the data at  
all, it should just copy it appropriately from the input files to the  
outputs.
   The easy way to get the output pickups is to set up the model with  
the new gridding and run for one timestep outputting a pickup.  The  
routine will then overwrite the data in the files with the  
interpolated data from the set of input files.
   Cheers,
     -Baylor



On Mar 1, 2006, at 2:47 PM, Paola Cessi wrote:

> Is it possible to restart a computation with 4*N tiles, using the  
> pickup files generated with N tiles, while keeping Nx and Ny fixed?  
> In other words, is it possible to change nPx and nPy in a restart  
> run, while keeping Nx and Ny the same? (without using netcdf)
>
> paola
>
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> Paola Cessi                            Tel: +1 858 534 0622
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