PUGHInterp's Implementation of CCTK_InterpGridArrays()

If thorn PUGHInterp was activated in the ActiveThorns list of a parameter file for a Cactus run, it will overload at startup the flesh-provided dummy function for CCTK_InterpGridArrays() with its own routine. This routine will then be invoked in subsequent calls to CCTK_InterpGridArrays().

PUGHInterp's routine for the interpolation of grid arrays provides exactly the same semantics as CCTK_InterpGridArrays()which is thoroughly described in the Function Reference chapter of the Cactus UsersGuide. In the following, only user-relevant details about its implementation, such as specific error codes and the evaluation of parameter options table entries, are explained.