[MITgcm-support] changing the number of tiles

[Paola Cessi]

Is interpickups.m necessary if the number of gridpoints is the same, and 
thus no interpolation is needed, but the tiling changes? paola

On Wed, 1 Mar 2006, Baylor Fox-Kemper wrote:

> 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
>> 
>> -------------------------------------------------------------------------
>> Paola Cessi                            Tel: +1 858 534 0622
>> Scripps Institution of Oceanography    Fax: +1 858 534 8045
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>> UCSD-0213                              e-mail: pcessi at ucsd.edu
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>> USA                      Web:  http://www-pord.ucsd.edu/~pcessi
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