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When you need to make a new mpas*.part.N file because you changed the number of nodes an MPAS component runs on.  These instructions including adding the file to the repo for others to use.


Step-by-step guide for MPSMPAS-Ocean


  1. See if "metis" or "gpmetis" is available on your platform and add it to your path.
    1. On Cray systems, gpmetis is available after `module load metis`.
    2. Do "module spider metis" to find the module to load on your system.
    3. Install it from conda
  2. Find the base mpas graph file called something like "mpas-o.graph.info.151031".  These files should be in inputdata/ocn/mpas-o respectively.
  3. Run the metis command with the last argument being the number of nodes for the partition.
    1. Example:  "gpmetis mpas-cice.graph.info.151010 120"   will generate a *.part.120 file for mpas-cice.
  4. Place the new file in the correct inputdata subdirectory for the model to find it.

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