==== Computational domain configuration ====

We here suppose a regular cartesian grid.
We set the geometrical configuration, the place and the size of the domain as well as the mesh size.

=== For a sequential computing ===

    &Domain_Features Geometric_Layout               = 0,         !--- Option value for a cartesian geometry
                     Start_Coordinate_I_Direction   = 0.0  ,     !--- Start coordinate along the I-direction
                     End_Coordinate_I_Direction     = 12.  ,     !--- End coordinate along the I-direction   
                     Start_Coordinate_J_Direction   = 0.0  ,     !--- Start coordinate along the J-direction
                     End_Coordinate_J_Direction     = 2.0  ,     !--- End coordinate along the J-direction
                     Start_Coordinate_K_Direction   = 0.00 ,     !--- Start coordinate along the K-direction
                     End_Coordinate_K_Direction     = 0.00 ,     !--- End of the domain along the K-direction
                     Cells_Number_I_Direction       = 384 ,      !--- Number of cells along the I-direction (not counting the ghost cells)
                     Cells_Number_J_Direction       = 128 ,      !--- Number of cells along the J-direction (not counting the ghost cells)
                     Cells_Number_K_Direction       = 1,         !--- Number of cells along the K-direction (not counting the ghost cells)
                     Regular_Mesh                   = .true. /   !--- The grid is regular for any direction

<note important>
Even though the geometry is 2D, the third direction must be set. Just one cell must be set for the K-direction.
</note>


=== For OpenMP or MPI parallel computing  ===
(__**Not for the release SUNFLUIDH_EDU**__).\\
The code SUNFLUIDH can perform OpenMP or MPI computing (if it has been compiled with the appropriate options, see [[sunfluidh:makefile_configuration|How to configure the makefile]]).
The user can configure a parallel computing from the data file by setting the appropriate variables of the previous namelist. All details for our example are given [[sunfluidh_tuto1_parallel_config | here]].