Nektar::Collections::BwdTrans_StdMat Class Reference

Backward transform operator using standard matrix approach. More...

Inheritance diagram for Nektar::Collections::BwdTrans_StdMat:

Public Member Functions
virtual	~BwdTrans_StdMat ()
virtual void	operator() (const Array< OneD, const NekDouble > &input, Array< OneD, NekDouble > &output, Array< OneD, NekDouble > &output1, Array< OneD, NekDouble > &output2, Array< OneD, NekDouble > &wsp)
	Perform operation. More...
virtual void	operator() (int dir, const Array< OneD, const NekDouble > &input, Array< OneD, NekDouble > &output, Array< OneD, NekDouble > &wsp)
Public Member Functions inherited from Nektar::Collections::Operator
	Operator (std::vector< StdRegions::StdExpansionSharedPtr > pCollExp, std::shared_ptr< CoalescedGeomData > GeomData)
	Constructor. More...
virtual COLLECTIONS_EXPORT	~Operator ()
int	GetWspSize ()
	Get the size of the required workspace. More...

Protected Attributes
DNekMatSharedPtr	m_mat
Protected Attributes inherited from Nektar::Collections::Operator
StdRegions::StdExpansionSharedPtr	m_stdExp
unsigned int	m_numElmt
unsigned int	m_wspSize

Private Member Functions
	BwdTrans_StdMat (vector< StdRegions::StdExpansionSharedPtr > pCollExp, CoalescedGeomDataSharedPtr pGeomData)

Detailed Description

Backward transform operator using standard matrix approach.

Definition at line 56 of file BwdTrans.cpp.

Constructor & Destructor Documentation

~BwdTrans_StdMat()

virtual Nektar::Collections::BwdTrans_StdMat::~BwdTrans_StdMat ( )

inlinevirtual

Definition at line 61 of file BwdTrans.cpp.

        {
        }

BwdTrans_StdMat()

Nektar::Collections::BwdTrans_StdMat::BwdTrans_StdMat ( vector< StdRegions::StdExpansionSharedPtr >  pCollExp, CoalescedGeomDataSharedPtr  pGeomData  )

inlineprivate

Definition at line 93 of file BwdTrans.cpp.

References Nektar::StdRegions::eBwdTrans, Nektar::LibUtilities::eHexahedron, Nektar::LibUtilities::ePrism, Nektar::LibUtilities::ePyramid, Nektar::LibUtilities::eQuadrilateral, Nektar::LibUtilities::eSegment, Nektar::Collections::eStdMat, Nektar::Collections::eSumFac, Nektar::LibUtilities::eTetrahedron, Nektar::LibUtilities::eTriangle, Nektar::Collections::GetOperatorFactory(), and Nektar::LibUtilities::NekFactory< tKey, tBase, tParam >::RegisterCreatorFunction().

            : Operator(pCollExp, pGeomData)
        {
            StdRegions::StdMatrixKey  key(StdRegions::eBwdTrans,
                                          m_stdExp->DetShapeType(), *m_stdExp);
            m_mat = m_stdExp->GetStdMatrix(key);
        }

Member Function Documentation

operator()() [1/2]

virtual void Nektar::Collections::BwdTrans_StdMat::operator() ( const Array< OneD, const NekDouble > &  input, Array< OneD, NekDouble > &  output0, Array< OneD, NekDouble > &  output1, Array< OneD, NekDouble > &  output2, Array< OneD, NekDouble > &  wsp  )

inlinevirtual

Perform operation.

Implements Nektar::Collections::Operator.

Definition at line 65 of file BwdTrans.cpp.

References Blas::Dgemm().

        {
            boost::ignore_unused(output1, output2, wsp);
            Blas::Dgemm('N', 'N', m_mat->GetRows(), m_numElmt,
                        m_mat->GetColumns(), 1.0, m_mat->GetRawPtr(),
                        m_mat->GetRows(), input.get(), m_stdExp->GetNcoeffs(),
                        0.0, output.get(), m_stdExp->GetTotPoints());
        }

operator()() [2/2]

virtual void Nektar::Collections::BwdTrans_StdMat::operator() ( int  dir, const Array< OneD, const NekDouble > &  input, Array< OneD, NekDouble > &  output, Array< OneD, NekDouble > &  wsp  )

inlinevirtual

Implements Nektar::Collections::Operator.

Definition at line 79 of file BwdTrans.cpp.

References ASSERTL0.

        {
            boost::ignore_unused(dir, input, output, wsp);
            ASSERTL0(false, "Not valid for this operator.");
        }

Member Data Documentation

m_mat

DNekMatSharedPtr Nektar::Collections::BwdTrans_StdMat::m_mat

protected

Definition at line 90 of file BwdTrans.cpp.