When you need to make a new mpas*.part.N file because you changed the number of nodes an MPAS component runs on.
Step-by-step guide
Download script inputTreeDownload.sh
Run inputTreeDownload.sh to check out just the directory structure of the repository. This takes about 15 minutes. This is to avoid having to download the entire repository.
- See if "metis" or "gpmetis" is available on your platform and add it to your path.
- On Cray systems, gpmetis is available after `module load metis`.
- On Blues and Anvil, gpmetis is loaded with `soft add +metis-5.0.3`.
- On Mira, gpmetis can be loaded with `export PATH=/soft/libraries/alcf/current/xl/METIS/bin/:$PATH`
- You'll need to download the files for the grid you want to add a partition for:
- svn co --depth=files https://acme-svn2.ornl.gov/acme-repo/acme/inputdata/<path-to-dir> acme/inputdata/<path-to-dir>
- Find the base mpas graph file called "mpas-cice.graph.info.151020" or "mpas-o.graph.info.151031". These files should be in inputdata/ice/mpas-cice and inputdata/ocn/mpas-ocn respectively.
- Run the metis command with the last argument being the number of nodes for the partition.
- Example: "gpmetis mpas-cice.graph.info.151010 120" will generate a *.part.120 file for mpas-cice.
- Place the new file in the correct inputdata subdirectory for the model to find it.
- svn add and svn commit
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