The namelist parameters listed in Table 7 are for computational domain decomposition information. These are generally set in the build configure scripts based on the number of processors. See the CESM scripts documentation.
| Varible | Type | Default Value | Description |
| processor_shape | Character | 'square-pop' | Approximate block shapes |
| ew_boundary_type | Character | 'cyclic' | Boundary conditions in E-W direction |
| ns_boundary_type | Character | 'open' | Boundary conditions in N-S direction |
| distribution_type | Character | 'cartesian' | How blocks are split onto processors |
| 'cartesian' | |||
| 'spacecurve' | |||
| 'rake' | |||
| distribution_wght | Character | 'erfc' | How blocks are weighted when using space-filling curves (erfc or file) |
| distribution_wght_file | Character | '' | File containing space-filling curve weights when not using erfc weighting |