Class for parallel linear form. More...

#include <plinearform.hpp>

Inheritance diagram for mfem::ParLinearForm:

Collaboration diagram for mfem::ParLinearForm:

Public Member Functions
	ParLinearForm ()
	Create an empty ParLinearForm without an associated ParFiniteElementSpace. More...

	ParLinearForm (ParFiniteElementSpace *pf)
	Create a ParLinearForm on the FE space *pf. More...

	ParLinearForm (ParFiniteElementSpace pf, ParLinearForm plf)
	Create a ParLinearForm on the ParFiniteElementSpace pf, using the same integrators as the ParLinearForm plf. More...

ParLinearForm &	operator= (const ParLinearForm &rhs)
	Copy assignment. Only the data of the base class Vector is copied. More...

ParFiniteElementSpace *	ParFESpace () const

void	Update (ParFiniteElementSpace *pf=NULL)
	Update the object according to the given new FE space *pf. More...

void	Update (ParFiniteElementSpace *pf, Vector &v, int v_offset)
	Associate a new FE space, pf, with this object and use the data of v, offset by v_offset*, to initialize this object's Vector::data. More...

void	ParallelAssemble (Vector &tv)
	Assemble the vector on the true dofs, i.e. P^t v. More...

HypreParVector *	ParallelAssemble ()
	Returns the vector assembled on the true dofs, i.e. P^t v. More...

double	operator() (const ParGridFunction &gf) const
	Return the action of the ParLinearForm as a linear mapping. More...

ParLinearForm &	operator= (double value)
	Assign constant values to the ParLinearForm data. More...

ParLinearForm &	operator= (const Vector &v)
	Copy the data from a Vector to the ParLinearForm data. More...

Public Member Functions inherited from mfem::LinearForm
	LinearForm (FiniteElementSpace *f)
	Creates linear form associated with FE space *f. More...

	LinearForm (FiniteElementSpace f, LinearForm lf)
	Create a LinearForm on the FiniteElementSpace f, using the same integrators as the LinearForm lf. More...

	LinearForm ()
	Create an empty LinearForm without an associated FiniteElementSpace. More...

LinearForm &	operator= (const LinearForm &rhs)
	Copy assignment. Only the data of the base class Vector is copied. More...

FiniteElementSpace *	GetFES ()
	(DEPRECATED) Return the FE space associated with the LinearForm. More...

FiniteElementSpace *	FESpace ()
	Read+write access to the associated FiniteElementSpace. More...

const FiniteElementSpace *	FESpace () const
	Read-only access to the associated FiniteElementSpace. More...

void	AddDomainIntegrator (LinearFormIntegrator *lfi)
	Adds new Domain Integrator. Assumes ownership of lfi. More...

void	AddBoundaryIntegrator (LinearFormIntegrator *lfi)
	Adds new Boundary Integrator. Assumes ownership of lfi. More...

void	AddBoundaryIntegrator (LinearFormIntegrator *lfi, Array< int > &bdr_attr_marker)
	Add new Boundary Integrator, restricted to the given boundary attributes. More...

void	AddBdrFaceIntegrator (LinearFormIntegrator *lfi)
	Adds new Boundary Face Integrator. Assumes ownership of lfi. More...

void	AddBdrFaceIntegrator (LinearFormIntegrator *lfi, Array< int > &bdr_attr_marker)
	Add new Boundary Face Integrator, restricted to the given boundary attributes. More...

Array< LinearFormIntegrator * > *	GetDLFI ()
	Access all integrators added with AddDomainIntegrator() which are not DeltaLFIntegrators or they are DeltaLFIntegrators with non-delta coefficients. More...

Array< DeltaLFIntegrator * > *	GetDLFI_Delta ()
	Access all integrators added with AddDomainIntegrator() which are DeltaLFIntegrators with delta coefficients. More...

Array< LinearFormIntegrator * > *	GetBLFI ()
	Access all integrators added with AddBoundaryIntegrator(). More...

Array< LinearFormIntegrator * > *	GetFLFI ()
	Access all integrators added with AddBdrFaceIntegrator(). More...

Array< Array< int > * > *	GetFLFI_Marker ()
	Access all boundary markers added with AddBdrFaceIntegrator(). If no marker was specified when the integrator was added, the corresponding pointer (to Array<int>) will be NULL. More...

void	Assemble ()
	Assembles the linear form i.e. sums over all domain/bdr integrators. More...

void	AssembleDelta ()
	Assembles delta functions of the linear form. More...

void	Update ()
	Update the object according to the associated FE space fes. More...

void	Update (FiniteElementSpace *f)
	Associate a new FE space, f, with this object and Update() it. /. More...

void	Update (FiniteElementSpace *f, Vector &v, int v_offset)
	Associate a new FE space, f, with this object and use the data of v, offset by v_offset*, to initialize this object's Vector::data. More...

double	operator() (const GridFunction &gf) const
	Return the action of the LinearForm as a linear mapping. More...

LinearForm &	operator= (double value)
	Redefine '=' for LinearForm = constant. More...

LinearForm &	operator= (const Vector &v)
	Copy the data from v. More...

	~LinearForm ()
	Destroys linear form. More...

Public Member Functions inherited from mfem::Vector
	Vector ()
	Default constructor for Vector. Sets size = 0 and data = NULL. More...

	Vector (const Vector &)
	Copy constructor. Allocates a new data array and copies the data. More...

	Vector (int s)
	Creates vector of size s. More...

	Vector (double *_data, int _size)
	Creates a vector referencing an array of doubles, owned by someone else. More...

	Vector (int size_, MemoryType mt)
	Create a Vector of size size_ using MemoryType mt. More...

void	UseDevice (bool use_dev) const
	Enable execution of Vector operations using the mfem::Device. More...

bool	UseDevice () const
	Return the device flag of the Memory object used by the Vector. More...

void	Load (std::istream *in, int np, int dim)
	Reads a vector from multiple files. More...

void	Load (std::istream &in, int Size)
	Load a vector from an input stream. More...

void	Load (std::istream &in)
	Load a vector from an input stream, reading the size from the stream. More...

void	SetSize (int s)
	Resize the vector to size s. More...

void	SetSize (int s, MemoryType mt)
	Resize the vector to size s using MemoryType mt. More...

void	SetSize (int s, Vector &v)
	Resize the vector to size s using the MemoryType of v. More...

void	SetData (double *d)

void	SetDataAndSize (double *d, int s)
	Set the Vector data and size. More...

void	NewDataAndSize (double *d, int s)
	Set the Vector data and size, deleting the old data, if owned. More...

void	NewMemoryAndSize (const Memory< double > &mem, int s, bool own_mem)
	Reset the Vector to use the given external Memory mem and size s. More...

void	MakeDataOwner () const
	Set the Vector data (host pointer) ownership flag. More...

void	Destroy ()
	Destroy a vector. More...

int	Size () const
	Returns the size of the vector. More...

int	Capacity () const
	Return the size of the currently allocated data array. More...

double *	GetData () const
	Return a pointer to the beginning of the Vector data. More...

	operator double * ()
	Conversion to `double *`. More...

	operator const double * () const
	Conversion to `const double *`. More...

Memory< double > &	GetMemory ()
	Return a reference to the Memory object used by the Vector. More...

const Memory< double > &	GetMemory () const
	Return a reference to the Memory object used by the Vector, const version. More...

void	SyncMemory (const Vector &v)
	Update the memory location of the vector to match v. More...

void	SyncAliasMemory (const Vector &v)
	Update the alias memory location of the vector to match v. More...

bool	OwnsData () const
	Read the Vector data (host pointer) ownership flag. More...

void	StealData (double **p)
	Changes the ownership of the data; after the call the Vector is empty. More...

double *	StealData ()
	Changes the ownership of the data; after the call the Vector is empty. More...

double &	Elem (int i)
	Access Vector entries. Index i = 0 .. size-1. More...

const double &	Elem (int i) const
	Read only access to Vector entries. Index i = 0 .. size-1. More...

double &	operator() (int i)
	Access Vector entries using () for 0-based indexing. More...

const double &	operator() (int i) const
	Read only access to Vector entries using () for 0-based indexing. More...

double	operator* (const double *) const
	Dot product with a `double *` array. More...

double	operator* (const Vector &v) const
	Return the inner-product. More...

Vector &	operator= (const double *v)
	Copy Size() entries from v. More...

Vector &	operator= (const Vector &v)
	Copy assignment. More...

Vector &	operator= (double value)
	Redefine '=' for vector = constant. More...

Vector &	operator*= (double c)

Vector &	operator/= (double c)

Vector &	operator-= (double c)

Vector &	operator-= (const Vector &v)

Vector &	operator+= (const Vector &v)

Vector &	Add (const double a, const Vector &Va)
	(this) += a Va More...

Vector &	Set (const double a, const Vector &x)
	(this) = a x More...

void	SetVector (const Vector &v, int offset)

void	Neg ()
	(this) = -(this) More...

void	Swap (Vector &other)
	Swap the contents of two Vectors. More...

void	median (const Vector &lo, const Vector &hi)
	v = median(v,lo,hi) entrywise. Implementation assumes lo <= hi. More...

void	GetSubVector (const Array< int > &dofs, Vector &elemvect) const

void	GetSubVector (const Array< int > &dofs, double *elem_data) const

void	SetSubVector (const Array< int > &dofs, const double value)
	Set the entries listed in `dofs` to the given `value`. More...

void	SetSubVector (const Array< int > &dofs, const Vector &elemvect)

void	SetSubVector (const Array< int > &dofs, double *elem_data)

void	AddElementVector (const Array< int > &dofs, const Vector &elemvect)
	Add (element) subvector to the vector. More...

void	AddElementVector (const Array< int > &dofs, double *elem_data)

void	AddElementVector (const Array< int > &dofs, const double a, const Vector &elemvect)

void	SetSubVectorComplement (const Array< int > &dofs, const double val)
	Set all vector entries NOT in the 'dofs' array to the given 'val'. More...

void	Print (std::ostream &out=mfem::out, int width=8) const
	Prints vector to stream out. More...

void	Print_HYPRE (std::ostream &out) const
	Prints vector to stream out in HYPRE_Vector format. More...

void	Randomize (int seed=0)
	Set random values in the vector. More...

double	Norml2 () const
	Returns the l2 norm of the vector. More...

double	Normlinf () const
	Returns the l_infinity norm of the vector. More...

double	Norml1 () const
	Returns the l_1 norm of the vector. More...

double	Normlp (double p) const
	Returns the l_p norm of the vector. More...

double	Max () const
	Returns the maximal element of the vector. More...

double	Min () const
	Returns the minimal element of the vector. More...

double	Sum () const
	Return the sum of the vector entries. More...

double	DistanceSquaredTo (const double *p) const
	Compute the square of the Euclidean distance to another vector. More...

double	DistanceTo (const double *p) const
	Compute the Euclidean distance to another vector. More...

int	CheckFinite () const
	Count the number of entries in the Vector for which isfinite is false, i.e. the entry is a NaN or +/-Inf. More...

virtual	~Vector ()
	Destroys vector. More...

const double *	Read (bool on_dev=true) const
	Shortcut for mfem::Read(vec.GetMemory(), vec.Size(), on_dev). More...

const double *	HostRead () const
	Shortcut for mfem::Read(vec.GetMemory(), vec.Size(), false). More...

double *	Write (bool on_dev=true)
	Shortcut for mfem::Write(vec.GetMemory(), vec.Size(), on_dev). More...

double *	HostWrite ()
	Shortcut for mfem::Write(vec.GetMemory(), vec.Size(), false). More...

double *	ReadWrite (bool on_dev=true)
	Shortcut for mfem::ReadWrite(vec.GetMemory(), vec.Size(), on_dev). More...

double *	HostReadWrite ()
	Shortcut for mfem::ReadWrite(vec.GetMemory(), vec.Size(), false). More...

	Vector (N_Vector nv)
	Construct a wrapper Vector from SUNDIALS N_Vector. More...

virtual N_Vector	ToNVector ()
	Return a new wrapper SUNDIALS N_Vector of type SUNDIALS_NVEC_SERIAL. More...

virtual void	ToNVector (N_Vector &nv)
	Update an existing wrapper SUNDIALS N_Vector to point to this Vector. More...

Protected Attributes
ParFiniteElementSpace *	pfes
	Points to the same object as fes. More...

Protected Attributes inherited from mfem::LinearForm
FiniteElementSpace *	fes
	FE space on which the LinearForm lives. Not owned. More...

int	extern_lfs
	Indicates the LinerFormIntegrators stored in dlfi, dlfi_delta, blfi, and flfi are owned by another LinearForm. More...

Array< LinearFormIntegrator * >	dlfi
	Set of Domain Integrators to be applied. More...

Array< DeltaLFIntegrator * >	dlfi_delta
	Separate array for integrators with delta function coefficients. More...

Array< LinearFormIntegrator * >	blfi
	Set of Boundary Integrators to be applied. More...

Array< Array< int > * >	blfi_marker
	Entries are not owned. More...

Array< LinearFormIntegrator * >	flfi
	Set of Boundary Face Integrators to be applied. More...

Array< Array< int > * >	flfi_marker
	Entries are not owned. More...

Array< int >	dlfi_delta_elem_id
	The element ids where the centers of the delta functions lie. More...

Array< IntegrationPoint >	dlfi_delta_ip
	The reference coordinates where the centers of the delta functions lie. More...

Protected Attributes inherited from mfem::Vector
Memory< double >	data

int	size

Additional Inherited Members
Protected Member Functions inherited from mfem::LinearForm
bool	HaveDeltaLocations ()
	If true, the delta locations are not (re)computed during assembly. More...

void	ResetDeltaLocations ()
	Force (re)computation of delta locations. More...

Detailed Description

Class for parallel linear form.

Definition at line 26 of file plinearform.hpp.

Constructor & Destructor Documentation

mfem::ParLinearForm::ParLinearForm ( )

inline

Create an empty ParLinearForm without an associated ParFiniteElementSpace.

The associated ParFiniteElementSpace can be set later using one of the methods: Update(ParFiniteElementSpace *) or Update(ParFiniteElementSpace *, Vector &, int).

Definition at line 42 of file plinearform.hpp.

mfem::ParLinearForm::ParLinearForm ( ParFiniteElementSpace * pf )

inline

Create a ParLinearForm on the FE space *pf.

The pointer pf is not owned by the newly constructed object.

Definition at line 46 of file plinearform.hpp.

mfem::ParLinearForm::ParLinearForm	(	ParFiniteElementSpace *	pf,
		ParLinearForm *	plf
	)

inline

Create a ParLinearForm on the ParFiniteElementSpace *pf, using the same integrators as the ParLinearForm *plf.

The pointer pf is not owned by the newly constructed object.

The integrators in plf are copied as pointers and they are not owned by the newly constructed LinearForm.

Definition at line 55 of file plinearform.hpp.

Member Function Documentation

double mfem::ParLinearForm::operator() ( const ParGridFunction & gf ) const

inline

Return the action of the ParLinearForm as a linear mapping.

Linear forms are linear functionals which map ParGridFunctions to the real numbers. This method performs this mapping which in this case is equivalent as an inner product of the ParLinearForm and ParGridFunction.

Definition at line 97 of file plinearform.hpp.

ParLinearForm& mfem::ParLinearForm::operator= ( const ParLinearForm & rhs )

inline

Copy assignment. Only the data of the base class Vector is copied.

It is assumed that this object and rhs use ParFiniteElementSpaces that have the same size.

Note: Defining this method overwrites the implicitly defined copy assignemnt operator.

Definition at line 64 of file plinearform.hpp.

ParLinearForm& mfem::ParLinearForm::operator= ( double value )

inline

Assign constant values to the ParLinearForm data.

Definition at line 103 of file plinearform.hpp.

ParLinearForm& mfem::ParLinearForm::operator= ( const Vector & v )

inline

Copy the data from a Vector to the ParLinearForm data.

Definition at line 107 of file plinearform.hpp.

void mfem::ParLinearForm::ParallelAssemble ( Vector & tv )

Assemble the vector on the true dofs, i.e. P^t v.

Definition at line 34 of file plinearform.cpp.

HypreParVector * mfem::ParLinearForm::ParallelAssemble ( )

Returns the vector assembled on the true dofs, i.e. P^t v.

Definition at line 39 of file plinearform.cpp.

ParFiniteElementSpace* mfem::ParLinearForm::ParFESpace ( ) const

inline

Definition at line 67 of file plinearform.hpp.

void mfem::ParLinearForm::Update ( ParFiniteElementSpace * pf = NULL )

Update the object according to the given new FE space *pf.

If the pointer pf is NULL (this is the default value), the FE space already associated with this object is used.

This method should be called when the asscociated FE space fes has been updated, e.g. after its associated Mesh object has been refined.

Note: This method does not perform assembly.

Definition at line 21 of file plinearform.cpp.

void mfem::ParLinearForm::Update	(	ParFiniteElementSpace *	pf,
		Vector &	v,
		int	v_offset
	)

Associate a new FE space, *pf, with this object and use the data of v, offset by v_offset, to initialize this object's Vector::data.

Note: This method does not perform assembly.

Definition at line 28 of file plinearform.cpp.

Member Data Documentation

ParFiniteElementSpace* mfem::ParLinearForm::pfes

protected

Points to the same object as fes.

Definition at line 29 of file plinearform.hpp.

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

fem/plinearform.hpp
fem/plinearform.cpp

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation