Check/Modify Parameters

Thorn CoordBase

Parameters in Cactus can be either fixed or steerable. Steerable parameters are those which can be modified during a simulation. To change steerable parameters, edit the values and press the submit button. Before applying the new parameter value, Cactus will check that the parameter lies in the allowed range. Note that there is currently no log of parameters which have been modified.

The tables below show the parameter name, current value and description. The default value of each parameter is shown in brackets at the end of the description.

This thorn has no steerable parameters.

Fixed Parameters

boundary_internal_x_lower no Do the boundary points extend inwards at the lower x face? (no)
boundary_internal_x_upper no Do the boundary points extend inwards at the upper x face? (no)
boundary_internal_y_lower no Do the boundary points extend inwards at the lower y face? (no)
boundary_internal_y_upper no Do the boundary points extend inwards at the upper y face? (no)
boundary_internal_z_lower no Do the boundary points extend inwards at the lower z face? (no)
boundary_internal_z_upper no Do the boundary points extend inwards at the upper z face? (no)
boundary_shiftout_x_lower 0 Offset between the boundary location and the first boundary point at the lower x face (0)
boundary_shiftout_x_upper 0 Offset between the boundary location and the first boundary point at the upper x face (0)
boundary_shiftout_y_lower 0 Offset between the boundary location and the first boundary point at the lower y face (0)
boundary_shiftout_y_upper 0 Offset between the boundary location and the first boundary point at the upper y face (0)
boundary_shiftout_z_lower 0 Offset between the boundary location and the first boundary point at the lower z face (0)
boundary_shiftout_z_upper 0 Offset between the boundary location and the first boundary point at the upper z face (0)
boundary_size_x_lower 1 Boundary zones at the lower x face (1)
boundary_size_x_upper 1 Boundary zones at the upper x face (1)
boundary_size_y_lower 1 Boundary zones at the lower y face (1)
boundary_size_y_upper 1 Boundary zones at the upper y face (1)
boundary_size_z_lower 1 Boundary zones at the lower z face (1)
boundary_size_z_upper 1 Boundary zones at the upper z face (1)
boundary_staggered_x_lower no Is the boundary is staggered about the grid points at the lower x face? (no)
boundary_staggered_x_upper no Is the boundary is staggered about the grid points at the upper x face? (no)
boundary_staggered_y_lower no Is the boundary is staggered about the grid points at the lower y face? (no)
boundary_staggered_y_upper no Is the boundary is staggered about the grid points at the upper y face? (no)
boundary_staggered_z_lower no Is the boundary is staggered about the grid points at the lower z face? (no)
boundary_staggered_z_upper no Is the boundary is staggered about the grid points at the upper z face? (no)
domainsize minmax Domain size specification (minmax)
dx 1 Grid spacing in x direction (1.0)
dy 1 Grid spacing in y direction (1.0)
dz 1 Grid spacing in z direction (1.0)
ncells_x 1 Number of grid cells in x direction (1)
ncells_y 1 Number of grid cells in y direction (1)
ncells_z 1 Number of grid cells in z direction (1)
spacing gridspacing Grid spacing specification (gridspacing)
xextent 1 Domain extent in x direction (1.0)
xmax 1 Location of upper x boundary (1.0)
xmin 0 Location of lower x boundary (0.0)
yextent 1 Domain extent in y direction (1.0)
ymax 1 Location of upper y boundary (1.0)
ymin 0 Location of lower y boundary (0.0)
zero_origin_x no Is the lower boundary located at x=0? (no)
zero_origin_y no Is the lower boundary located at y=0? (no)
zero_origin_z no Is the lower boundary located at z=0? (no)
zextent 1 Domain extent in z direction (1.0)
zmax 1 Location of upper z boundary (1.0)
zmin 0 Location of lower z boundary (0.0)