Base VectorSpaceBase class for all SPMD vector spaces with contiguous local-to-global indexing. More...

#include <Thyra_SpmdVectorSpaceDefaultBase_decl.hpp>

Inheritance diagram for Thyra::SpmdVectorSpaceDefaultBase< Scalar >:

Public Member Functions
	SpmdVectorSpaceDefaultBase ()

Public Member Functions inherited from Thyra::SpmdVectorSpaceBase< Scalar >
virtual Teuchos::RCP< const Teuchos::Comm< Ordinal > >	getComm () const =0
	Returns the SPMD communicator. More...

virtual Ordinal	localSubDim () const =0
	Returns the number of local elements stored on this process. More...

Public Member Functions inherited from Thyra::VectorSpaceBase< Scalar >
void	scalarProds (const MultiVectorBase< Scalar > &X, const MultiVectorBase< Scalar > &Y, const ArrayView< Scalar > &scalarProds_out) const
	Return the scalar product of each column in two multi-vectors in the vector space. More...

virtual bool	hasInCoreView (const Range1D &rng=Range1D(), const EViewType viewType=VIEW_TYPE_DETACHED, const EStrideType strideType=STRIDE_TYPE_NONUNIT) const
	Returns `true` if `this->acquireDetachedView(rng,...)` returns a direct view of the range of data requested. More...

virtual RCP< const VectorSpaceBase< Scalar > >	clone () const
	Clone this object (if supported). More...

virtual RCP< MultiVectorBase < Scalar > >	createCachedMembersView (const RTOpPack::SubMultiVectorView< Scalar > &raw_mv, bool initialize=true) const
	Create a (possibly) cached multi-vector member that is a non-`const` view of raw multi-vector data. The caching mechanism must be implemented by child classes, by default this just calls the regular `createMembersView`. More...

virtual RCP< const MultiVectorBase< Scalar > >	createCachedMembersView (const RTOpPack::ConstSubMultiVectorView< Scalar > &raw_mv) const
	Create a (possibly) cached multi-vector member that is a `const` view of raw multi-vector data. The caching mechanism must be implemented by child classes, by default this just calls the regular `createMembersView`. More...

Public Member Functions inherited from Thyra::ScalarProdVectorSpaceBase< Scalar >
	ScalarProdVectorSpaceBase ()
	Construct to use dot product as the default. More...

	ScalarProdVectorSpaceBase (const RCP< const ScalarProdBase< Scalar > > &scalarProd)
	Construct with a different scalar product. More...

virtual void	setScalarProd (const RCP< const ScalarProdBase< Scalar > > &scalarProd)
	Set a different scalar product. More...

RCP< const ScalarProdBase < Scalar > >	getScalarProd () const
	Return the current scalar product. More...

bool	isEuclidean () const
	Returns `getScalarProd()->isEuclidean()` More...

Scalar	scalarProd (const VectorBase< Scalar > &x, const VectorBase< Scalar > &y) const
	Returns `getScalarProd()->scalarProd(x,y)` More...

void	scalarProdsImpl (const MultiVectorBase< Scalar > &X, const MultiVectorBase< Scalar > &Y, const ArrayView< Scalar > &scalarProds_out) const
	Calls `getScalarProd()->scalarProds(X,Y,scalar_prods)` More...

Protected Member Functions
virtual void	updateState (const Ordinal globalDim, const bool isLocallyReplicated=false)
	This function must be called whenever the state of `this` changes and some internal state must be updated. More...

Protected Member Functions inherited from Thyra::VectorSpaceBase< Scalar >
virtual RCP< VectorBase< Scalar > >	createMember () const =0
	Create a vector member from the vector space. More...

Protected Member Functions inherited from Thyra::VectorSpaceDefaultBase< Scalar >
RCP< MultiVectorBase< Scalar > >	createMembers (int numMembers) const

RCP< VectorBase< Scalar > >	createMemberView (const RTOpPack::SubVectorView< Scalar > &raw_v) const

RCP< const VectorBase< Scalar > >	createMemberView (const RTOpPack::ConstSubVectorView< Scalar > &raw_v) const

RCP< MultiVectorBase< Scalar > >	createMembersView (const RTOpPack::SubMultiVectorView< Scalar > &raw_mv) const

RCP< const MultiVectorBase < Scalar > >	createMembersView (const RTOpPack::ConstSubMultiVectorView< Scalar > &raw_mv) const

Overridden from SpmdVectorSpaceBase
Ordinal	localOffset () const

Ordinal	mapCode () const

bool	isLocallyReplicated () const
	Returns true if vector space is locally replicated space. More...

Overridden form Teuchos::Describable
std::string	description () const

Overridden from VectorSpaceBase
Ordinal	dim () const
	Returns the sum of the local number of elements on every process. More...

Teuchos::RCP< const VectorSpaceFactoryBase< Scalar > >	smallVecSpcFcty () const
	Returns a `DefaultSpmdVectorSpaceFactory` object that has been given `getComm()`. More...

bool	isCompatible (const VectorSpaceBase< Scalar > &vecSpc) const
	Checks the general compatibility of parallel (or serial on one process) Spmd-based vector spaces. More...

Additional Inherited Members
Related Functions inherited from Thyra::VectorSpaceBase< Scalar >
template<class Scalar >
RCP< const VectorSpaceBase < Scalar > >	makeHaveOwnership (const RCP< const VectorSpaceBase< Scalar > > &vs)
	Helper function that clones a `VectorSpaceBase` object if the `RCP` does not have ownership. More...

template<class Scalar >
RCP< VectorBase< Scalar > >	createMember (const RCP< const VectorSpaceBase< Scalar > > &vs, const std::string &label="")
	Create a vector member from the vector space. More...

template<class Scalar >
RCP< VectorBase< Scalar > >	createMember (const VectorSpaceBase< Scalar > &vs, const std::string &label="")
	Calls `createMember(Teuchos::rcp(&vs,false))`. More...

template<class Scalar >
RCP< MultiVectorBase< Scalar > >	createMembers (const RCP< const VectorSpaceBase< Scalar > > &vs, int numMembers, const std::string &label="")
	Create a set of vector members (a `MultiVectorBase`) from the vector space. More...

template<class Scalar >
RCP< MultiVectorBase< Scalar > >	createMembers (const RCP< const VectorSpaceBase< Scalar > > &vs, const RCP< const VectorSpaceBase< Scalar > > &domain, const std::string &label="")
	Create a set of vector members (a `MultiVectorBase`) from the vector space. More...

template<class Scalar >
RCP< MultiVectorBase< Scalar > >	createMembers (const VectorSpaceBase< Scalar > &vs, int numMembers, const std::string &label="")
	Calls `createMembers(Teuchos::rcp(&vs,false),numMembers)`. More...

template<class Scalar >
RCP< VectorBase< Scalar > >	createMemberView (const RCP< const VectorSpaceBase< Scalar > > &vs, const RTOpPack::SubVectorView< Scalar > &raw_v, const std::string &label="")
	Create a vector member that is a non-`const` view of raw data. More...

template<class Scalar >
RCP< VectorBase< Scalar > >	createMemberView (const VectorSpaceBase< Scalar > &vs, const RTOpPack::SubVectorView< Scalar > &raw_v, const std::string &label="")
	Calls `createMemberView(Teuchos::rcp(&vs,false),raw_v)`. More...

template<class Scalar >
RCP< const VectorBase< Scalar > >	createMemberView (const RCP< const VectorSpaceBase< Scalar > > &vs, const RTOpPack::ConstSubVectorView< Scalar > &raw_v, const std::string &label="")
	Create a vector member that is a `const` view of raw data. More...

template<class Scalar >
RCP< const VectorBase< Scalar > >	createMemberView (const VectorSpaceBase< Scalar > &vs, const RTOpPack::ConstSubVectorView< Scalar > &raw_v, const std::string &label="")
	Calls `createMemberView(Teuchos::rcp(&vs,false),raw_v)`. More...

template<class Scalar >
RCP< MultiVectorBase< Scalar > >	createMembersView (const RCP< const VectorSpaceBase< Scalar > > &vs, const RTOpPack::SubMultiVectorView< Scalar > &raw_mv, const std::string &label="")
	Create a multi-vector member that is a non-`const` view of raw data. More...

template<class Scalar >
RCP< MultiVectorBase< Scalar > >	createMembersView (const VectorSpaceBase< Scalar > &vs, const RTOpPack::SubMultiVectorView< Scalar > &raw_mv, const std::string &label="")
	Calls `createMembersView(Teuchos::rcp(&vs,false),raw_mv)`. More...

template<class Scalar >
RCP< const MultiVectorBase < Scalar > >	createMembersView (const RCP< const VectorSpaceBase< Scalar > > &vs, const RTOpPack::ConstSubMultiVectorView< Scalar > &raw_mv, const std::string &label="")
	Create a multi-vector member that is a `const` view of raw data. More...

template<class Scalar >
RCP< const MultiVectorBase < Scalar > >	createMembersView (const VectorSpaceBase< Scalar > &vs, const RTOpPack::ConstSubMultiVectorView< Scalar > &raw_mv, const std::string &label="")
	Calls `createMembersView(Teuchos::rcp(&vs,false),raw_mv)`. More...

Related Functions inherited from Thyra::ScalarProdVectorSpaceBase< Scalar >
template<class Scalar >
RCP< const ScalarProdVectorSpaceBase < Scalar > >	createSmallScalarProdVectorSpaceBase (const RCP< const VectorSpaceBase< Scalar > > &vs, const Ordinal dim)
	Create a small vector space casted to ScalarProdVectorSpaceBase. More...

Detailed Description

template<class Scalar>
class Thyra::SpmdVectorSpaceDefaultBase< Scalar >

Base VectorSpaceBase class for all SPMD vector spaces with contiguous local-to-global indexing.

See SpmdVectorSpaceBase for details on what this class represents in an abstract way.

Notes to subclass developers:

The pure virtual methods mpiComm(), localSubDim() and createMember() are the only functions that must be overridden.

If this this is in an uninitialized state then localSubDim() should return 0.

It should never be necessary to override the virtual functions mapCode() and isCompatible() as these functions have very good and very general implementations.

If optimized implementations of multi-vectors can be supported, then the createMembers() method should also be overridden.

This class defines a very general default implementation for smallVecSpcFcty() that returns a DefaultSpmdVectorSpaceFactory object which in turn can be used to create DefaultSpmdVectorSpace objects. These are the vector space objects that are used by the domain space of multi-vectors created by createMembers(). The class DefaultSpmdVectorSpace creates DefaultSpmdVector and DefaultSpmdMultiVector objects. This implementation of smallVecSpcFcty() is very general should be very appropriate for many different concrete implementations.

Note: It is very important that subclasses call the updateState() function whenever the state of *this changes in a way that might affect the behavior of any of the public member functions. For example, if a different value of localSubDim() will be returned the next time it is called by a client, then updateState() needs to be called by the subclass. External clients should never need to worry about this function and that is why updateState() is declared protected.

Definition at line 93 of file Thyra_SpmdVectorSpaceDefaultBase_decl.hpp.

Constructor & Destructor Documentation

template<class Scalar >

Thyra::SpmdVectorSpaceDefaultBase< Scalar >::SpmdVectorSpaceDefaultBase ( )

Definition at line 56 of file Thyra_SpmdVectorSpaceDefaultBase_def.hpp.

Member Function Documentation

template<class Scalar >

Ordinal Thyra::SpmdVectorSpaceDefaultBase< Scalar >::localOffset ( ) const

virtual

This method has a default implementation which just assigns this offset based on counting up localSubDim() on each process and then setting localOffset() by the rank of the process. For example, if there are 5 elements in process 0 and 4 elements in process rank, then localOffset on each of these processes will be set as: localOffset=0 on process 0, localOffset=5 on process 1, localOffset=9 on process 2 and so on.

Implements Thyra::SpmdVectorSpaceBase< Scalar >.

Definition at line 66 of file Thyra_SpmdVectorSpaceDefaultBase_def.hpp.

template<class Scalar >

Ordinal Thyra::SpmdVectorSpaceDefaultBase< Scalar >::mapCode ( ) const

virtual

This method takes the data getComm(), numProc (where numProc=this->getComm()->size()), localOffset() or localSubDim() on each process and then uses it to compute a value for mapCode (using a single global reduction if numProc > 1) which is returned from this function.

The value returned from this default implementation of this method must not be changed or this approach breaks down. The only reason for overriding this method is for the subclass to be alerted of when this method is called but not what is returned from this method. If a subclass developer does not understand what this means then don't override this method!

The default implementation will always return return > 0 (unless this is uninitialized) so that if this method is overridden to return return <= then this is a flag that the underlying vector map does not satisfy the assumptions of this vector space interface and vectors that are in *this vector space can not collaborate with other Spmd-based vector implementations.

Implements Thyra::SpmdVectorSpaceBase< Scalar >.

Definition at line 73 of file Thyra_SpmdVectorSpaceDefaultBase_def.hpp.

template<class Scalar >

bool Thyra::SpmdVectorSpaceDefaultBase< Scalar >::isLocallyReplicated ( ) const

virtual

Returns true if vector space is locally replicated space.

Implements Thyra::SpmdVectorSpaceBase< Scalar >.

Definition at line 80 of file Thyra_SpmdVectorSpaceDefaultBase_def.hpp.

template<class Scalar >

std::string Thyra::SpmdVectorSpaceDefaultBase< Scalar >::description ( ) const

virtual

Reimplemented from Teuchos::Describable.

Definition at line 87 of file Thyra_SpmdVectorSpaceDefaultBase_def.hpp.

template<class Scalar >

Ordinal Thyra::SpmdVectorSpaceDefaultBase< Scalar >::dim ( ) const

virtual

Returns the sum of the local number of elements on every process.

Implements Thyra::VectorSpaceBase< Scalar >.

Definition at line 112 of file Thyra_SpmdVectorSpaceDefaultBase_def.hpp.

template<class Scalar >

Teuchos::RCP< const VectorSpaceFactoryBase< Scalar > > Thyra::SpmdVectorSpaceDefaultBase< Scalar >::smallVecSpcFcty ( ) const

virtual

Returns a DefaultSpmdVectorSpaceFactory object that has been given getComm().

Implements Thyra::VectorSpaceBase< Scalar >.

Definition at line 120 of file Thyra_SpmdVectorSpaceDefaultBase_def.hpp.

template<class Scalar >

bool Thyra::SpmdVectorSpaceDefaultBase< Scalar >::isCompatible ( const VectorSpaceBase< Scalar > & vecSpc ) const

virtual

Checks the general compatibility of parallel (or serial on one process) Spmd-based vector spaces.

Returns: Returns true if *this and vecSpace are both serial in-core vectors or if vecSpc is of type SpmdVectorSpaceDefaultBase<Scalar> and both *this and vecSpc have the same Spmd communicators and the same mapping of elements to processes.

Postconditions:

return = ( this->hasInCoreView() && vecSpc->hasInCoreView() ) || ( (mpiVecSpc = dynamic_cast<const SpmdVectorSpaceDefaultBase<Scalar>*>(&vecSpc)) && this->getComm() == mpiVecSpc->getComm() && this->mapCode() == mpiVecSpc->getComm()).

If the mapping of vector elements to processes is not as described above then this method should be overridden in a way that is specific to the vector implementation.

Implements Thyra::VectorSpaceBase< Scalar >.

Definition at line 127 of file Thyra_SpmdVectorSpaceDefaultBase_def.hpp.

template<class Scalar >

void Thyra::SpmdVectorSpaceDefaultBase< Scalar >::updateState	(	const Ordinal	globalDim,
		const bool	isLocallyReplicated = `false`
	)

protectedvirtual

This function must be called whenever the state of this changes and some internal state must be updated.

Parameters

globalDim	[in] If `globalDim > 0` then this determines the global dimension of the vector space. If `globalDim==this->localSubDim()` and `this->localSubDim()` is the same on every process and is > 0 then this is a locally replicated vector space. If `globalDim < 0` then the global dimension is computed using a global reduction. If `this->getComm()->size()==1` then this argument is ignored.
isLocallyReplicated	[in] If `isLocallyReplicated==true`, then tt>globalDim must be equal to `this->localSubDim()` on every process but no global reduction will be done to verify this. If `false`, an global reduction is used to automatically determine if `globalDim == this->localSubDim()` on every process and therefore construct a locally replicated vector space.

Note that calling this function may involve one or more global reductions being called if this is parallel vector space so it should only be called when needed by subclasses and RCP should be use to share a constructed VS with lots of clients.

Usually, this operation only needs to be called once for every new parallel vector space constructed and very few parallel vector spaces will be created per application usually.

Definition at line 165 of file Thyra_SpmdVectorSpaceDefaultBase_def.hpp.

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

Public Member Functions

Protected Member Functions

Overridden from SpmdVectorSpaceBase

Overridden form Teuchos::Describable

Overridden from VectorSpaceBase

Additional Inherited Members

Detailed Description

template<class Scalar> class Thyra::SpmdVectorSpaceDefaultBase< Scalar >

Constructor & Destructor Documentation

Member Function Documentation

template<class Scalar>
class Thyra::SpmdVectorSpaceDefaultBase< Scalar >