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Cactus Code Thorn Time
Author(s) : Gabrielle Allen
Maintainer(s): Cactus team
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1. Purpose
Thorn Time sets the timestep for the simulation by either
- setting the timestep directly from a parameter value
- using a Courant-type condition to set the timestep based
on the grid-spacing used.
The Courant condition can be applied either once at the start of the
simulation, or the timestep can be calculated dynamically before each timestep.
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