benchmarks::exahype2::ccz4::CCZ4SBH_FD4 Class Reference

#include <CCZ4SBH_FD4.h>

Inheritance diagram for benchmarks::exahype2::ccz4::CCZ4SBH_FD4:

Collaboration diagram for benchmarks::exahype2::ccz4::CCZ4SBH_FD4:

Public Member Functions
	CCZ4SBH_FD4 ()
	Initialise the two punctures object if required. More...
virtual ::exahype2::RefinementCommand	refinementCriterion (const double *NOALIAS Q, const tarch::la::Vector< DIMENSIONS, double > &meshCellCentre, const tarch::la::Vector< DIMENSIONS, double > &meshCellH, double t) override
	Refinement criterion. More...
virtual void	initialCondition (double *NOALIAS Q, const tarch::la::Vector< DIMENSIONS, double > &meshCellCentre, const tarch::la::Vector< DIMENSIONS, double > &meshCellH, bool gridIsConstructed) override
virtual void	startTimeStep (double globalMinTimeStamp, double globalMaxTimeStamp, double globalMinTimeStepSize, double globalMaxTimeStepSize) override
	Start a new time step. More...

Static Private Attributes
static tarch::logging::Log	_log

Detailed Description

Definition at line 25 of file CCZ4SBH_FD4.h.

Constructor & Destructor Documentation

CCZ4SBH_FD4()

benchmarks::exahype2::ccz4::CCZ4SBH_FD4::CCZ4SBH_FD4

(

)

Initialise the two punctures object if required.

Definition at line 58 of file CCZ4SBH_FD4.cpp.

References benchmarks::exahype2::ccz4::prepareTwoPunctures().

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Member Function Documentation

initialCondition()

void benchmarks::exahype2::ccz4::CCZ4SBH_FD4::initialCondition ( double *NOALIAS  Q, const tarch::la::Vector< DIMENSIONS, double > &  meshCellCentre, const tarch::la::Vector< DIMENSIONS, double > &  meshCellH, bool  gridIsConstructed  )

overridevirtual

Definition at line 60 of file CCZ4SBH_FD4.cpp.

References applications::exahype2::ccz4::ApplyTwoPunctures(), and benchmarks::exahype2::ccz4::twoPunctures.

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refinementCriterion()

exahype2::RefinementCommand benchmarks::exahype2::ccz4::CCZ4SBH_FD4::refinementCriterion ( const double *NOALIAS  Q, const tarch::la::Vector< DIMENSIONS, double > &  meshCellCentre, const tarch::la::Vector< DIMENSIONS, double > &  meshCellH, double  t  )

override

Refinement criterion.

ExaHypE2 is guided by a maximum and minimum mesh (patch) size. All (dynamic) AMR is constrained by these values, i.e. if your mesh is coarser than the maximum mesh size, ExaHyPE 2 will automatically refine. If you try to refine further than the minimum mesh size, ExaHyPE 2 will ignore any refinement.

Consequently, you are fine if you work with a regular mesh: You set the maximum mesh size, and you leave everything else to Peano 4/ExaHyPE 2. If you want to have an adaptive mesh, use this routine to implement the refinement pattern.

Parameters

Q	This is the (current) solution. The data is not set to a valid value throughout grid construction. That is: If t equals 0.0, you cannot assume that Q is properly initialised. Therefore, Q usually is only evaluated by dynamic AMR codes which make the solution follow

Definition at line 47 of file CCZ4SBH_FD4.cpp.

References TP::Utilities::norm2().

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startTimeStep()

void benchmarks::exahype2::ccz4::CCZ4SBH_FD4::startTimeStep ( double  globalMinTimeStamp, double  globalMaxTimeStamp, double  globalMinTimeStepSize, double  globalMaxTimeStepSize  )

overridevirtual

Start a new time step.

First, we call the superclass' routine. This way, attributes such as isFirstGridSweepOfTimeStep() are correct. The time step size dumped is wrong. We might amend it later.

If we are in the first time step, we know that all of the solvers have successfully restricted their admissible time step size. Therefore, we synchronise all these time step sizes.

Definition at line 73 of file CCZ4SBH_FD4.cpp.

References TP::min().

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Field Documentation

_log

tarch::logging::Log benchmarks::exahype2::ccz4::CCZ4SBH_FD4::_log

staticprivate

Definition at line 27 of file CCZ4SBH_FD4.h.

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The documentation for this class was generated from the following files:

• benchmarks/exahype2/ccz4/single-black-hole/CCZ4SBH_FD4.h
• benchmarks/exahype2/ccz4/single-black-hole/CCZ4SBH_FD4.cpp