[MITgcm-support] "blanklist" parameter in MITgcm

[Daniel Goldberg]

Hello All

Can I ask about how to use the blankList parameter in data.exch2?

Can it be used for cartesian as well as cubed sphere grids? If so, Im unsure of how exactly to use it without examples shown.

the docs on the CS grid say:


  *   The tiles omitted are specified in the file blanklist.txt by their tile number in the topology, separated by a newline.
  *   The total number of tiles in the topology minus those listed in blanklist.txt must equal nSx*nPx.  (which i assume extends to the y direction -- but possibly not.)

So, if i wanted to have a grid where nSx=nSy=1, and the grid structure

nPx = 2
nPy = 4

then i believe with a cartesian grid, the tile numbering would be

3 7
2 6
1 5
0 4

where left = west, up = north, and i wanted to make tiles 2 and 3 blank. Would i set

blanklist = 2,3

and then change nPy = 3? And would i run with e.g. "mpirun -n 6" ? And, importantly, could input files still be defined as arrays of dimensions (sNx*2, sNy*4), i.e. of the same size as if i were not blanking tiles?

Many thanks!!!

Dan



--
Daniel Goldberg, PhD (he/him)
Reader in Glaciology
School of Geosciences, University of Edinburgh
Geography Building, Drummond Street, Edinburgh EH8 9XP


em: dan.goldberg at ed.ac.uk<mailto:dan.goldberg at ed.ac.uk>
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