Check/Modify Parameters

Thorn Time

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

courant_fac 0.9000000000000000222 The courant timestep condition dt = courant_fac*max(delta_space)/speed/sqrt(dim) (0.9)
dtfac 0.25 The standard timestep condition dt = dtfac*max(delta_space) (0.5)
timestep 0 Absolute value for timestep (0.0)
timestep_method courant_static Method for calculating timestep (courant_static)
timestep_outevery 1 How often to output courant timestep (1)
timestep_outonly no Don't set a dynamic timestep, just output what it would be (no)
verbose no Give selective information about timestep setting (no)