exahype2.api.MassMatrix.MassMatrix Class Reference

The (possibly Q-dependent) mass matrix M(Q) multiplying the input in a given direction, i.e. More...

Inheritance diagram for exahype2.api.MassMatrix.MassMatrix:

Collaboration diagram for exahype2.api.MassMatrix.MassMatrix:

Data Structures
class	Generator
	MassMatrix-specific code generation. More...

Public Member Functions
	__init__ (self, str implementation=None, bool stateless=False)
	implementation: str A C++ snippet that becomes massMatrix()'s body (the empty string is a valid, generated no-op body), or None (the default) to leave massMatrix() pure virtual for you to implement by hand.
Public Member Functions inherited from exahype2.api.PDETerm.PDETerm
str	__repr__ (self)
str	__str__ (self)
"PDETerm.Generator"	generator (self)
	Code generator for this term: an instance of this term's own (possibly subclass-specific) Generator.

Static Public Attributes
tuple	SIGNATURE
str	NAME = "massMatrix"
Static Public Attributes inherited from exahype2.api.PDETerm.PDETerm
str	NAME
str	SIGNATURE

Additional Inherited Members
Data Fields inherited from exahype2.api.PDETerm.PDETerm
	name
	implementation
	stateless

Detailed Description

The (possibly Q-dependent) mass matrix M(Q) multiplying the input in a given direction, i.e.

MTimesQ = M(Q) * Q. There is no direct legacy equivalent named "mass matrix" - the closest relative is aderdg's multiplyMaterialParameterMatrix() in python/exahype2/solvers/aderdg/AbstractSolverDeclarations.py, which is also normal-dependent, so this term follows the same reduced-signature pattern as Flux/MaxEigenvalue:

virtual void massMatrix(
  const double* __restrict__                   Q, // Q[{{NUMBER_OF_UNKNOWNS}}+{{NUMBER_OF_AUXILIARY_VARIABLES}}]
  const tarch::la::Vector<Dimensions, double>& x,
  int                                          normal,
  double* __restrict__                         MTimesQ // MTimesQ[{{NUMBER_OF_UNKNOWNS}}]
);

Definition at line 8 of file MassMatrix.py.

Constructor & Destructor Documentation

__init__()

exahype2.api.MassMatrix.MassMatrix.__init__	(		self,
		str	implementation = None,
		bool	stateless = False
	)

implementation: str A C++ snippet that becomes massMatrix()'s body (the empty string is a valid, generated no-op body), or None (the default) to leave massMatrix() pure virtual for you to implement by hand.

Don't add this term to a solver at all if the PDE has an (implicit) identity mass matrix.

Reimplemented from exahype2.api.PDETerm.PDETerm.

Definition at line 39 of file MassMatrix.py.

References exahype2.api.MassMatrix.MassMatrix.__init__(), exahype2.api.blockstructured.DirichletBoundaryConditions.DirichletBoundaryConditions.NAME, exahype2.api.blockstructured.SommerfeldBoundaryConditions.SommerfeldBoundaryConditions.NAME, exahype2.api.Flux.Flux.NAME, exahype2.api.GradientRefinement.GradientRefinement.NAME, exahype2.api.InitPointWisely.InitPointWisely.NAME, exahype2.api.MassMatrix.MassMatrix.NAME, exahype2.api.MaxEigenvalue.MaxEigenvalue.NAME, exahype2.api.NonconservativeProduct.NonconservativeProduct.NAME, exahype2.api.PDETerm.PDETerm.NAME, exahype2.api.PointSource.PointSource.NAME, exahype2.api.RefineErasePointwisely.RefineErasePointwisely.NAME, and exahype2.api.VolumetricSource.VolumetricSource.NAME.

Referenced by exahype2.api.MassMatrix.MassMatrix.__init__().

Here is the call graph for this function:

Here is the caller graph for this function:

Field Documentation

NAME

str exahype2.api.MassMatrix.MassMatrix.NAME = "massMatrix"

static

Definition at line 37 of file MassMatrix.py.

Referenced by exahype2.api.blockstructured.DirichletBoundaryConditions.DirichletBoundaryConditions.__init__(), exahype2.api.Flux.Flux.__init__(), exahype2.api.GradientRefinement.GradientRefinement.__init__(), exahype2.api.InitPointWisely.InitPointWisely.__init__(), exahype2.api.MassMatrix.MassMatrix.__init__(), exahype2.api.MaxEigenvalue.MaxEigenvalue.__init__(), exahype2.api.NonconservativeProduct.NonconservativeProduct.__init__(), exahype2.api.PointSource.PointSource.__init__(), exahype2.api.RefineErasePointwisely.RefineErasePointwisely.__init__(), exahype2.api.VolumetricSource.VolumetricSource.__init__(), and exahype2.api.blockstructured.SommerfeldBoundaryConditions.SommerfeldBoundaryConditions.__init__().

SIGNATURE

tuple exahype2.api.MassMatrix.MassMatrix.SIGNATURE

static

Initial value:

=  (
        "const double* __restrict__ Q, "
        "const tarch::la::Vector<Dimensions, double>& x, "
        "int normal, "
        "double* __restrict__ MTimesQ"
    )

Definition at line 30 of file MassMatrix.py.

---

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

• src/exahype2/api/MassMatrix.py