Nektar::Collections::BwdTrans_SumFac_Seg Class Reference

Backward transform operator using sum-factorisation (Segment) More...

Inheritance diagram for Nektar::Collections::BwdTrans_SumFac_Seg:

Public Member Functions
	~BwdTrans_SumFac_Seg () final=default
void	operator() (const Array< OneD, const NekDouble > &input, Array< OneD, NekDouble > &output0, Array< OneD, NekDouble > &output1, Array< OneD, NekDouble > &output2, Array< OneD, NekDouble > &wsp) override
	Perform operation. More...
void	operator() (int dir, const Array< OneD, const NekDouble > &input, Array< OneD, NekDouble > &output, Array< OneD, NekDouble > &wsp) final
Public Member Functions inherited from Nektar::Collections::Operator
	Operator (std::vector< StdRegions::StdExpansionSharedPtr > pCollExp, std::shared_ptr< CoalescedGeomData > GeomData, StdRegions::FactorMap factors)
	Constructor. More...
virtual	~Operator ()=default
virtual COLLECTIONS_EXPORT void	operator() (const Array< OneD, const NekDouble > &input, Array< OneD, NekDouble > &output0, Array< OneD, NekDouble > &output1, Array< OneD, NekDouble > &output2, Array< OneD, NekDouble > &wsp=NullNekDouble1DArray)=0
	Perform operation. More...
virtual COLLECTIONS_EXPORT void	operator() (int dir, const Array< OneD, const NekDouble > &input, Array< OneD, NekDouble > &output, Array< OneD, NekDouble > &wsp=NullNekDouble1DArray)=0
virtual COLLECTIONS_EXPORT void	UpdateFactors (StdRegions::FactorMap factors)
	Update the supplied factor map. More...
virtual COLLECTIONS_EXPORT void	UpdateVarcoeffs (StdRegions::VarCoeffMap &varcoeffs)
	Update the supplied variable coefficients. More...
unsigned int	GetWspSize ()
	Get the size of the required workspace. More...
unsigned int	GetNumElmt ()
	Get number of elements. More...
StdRegions::StdExpansionSharedPtr	GetExpSharedPtr ()
	Get expansion pointer. More...
unsigned int	GetInputSize (bool defaultIn=true)
unsigned int	GetOutputSize (bool defaultOut=true)

Protected Attributes
const int	m_nquad0
const int	m_nmodes0
const bool	m_colldir0
Array< OneD, const NekDouble >	m_base0
Protected Attributes inherited from Nektar::Collections::Operator
bool	m_isDeformed
StdRegions::StdExpansionSharedPtr	m_stdExp
unsigned int	m_numElmt
	number of elements that the operator is applied on More...
unsigned int	m_nqe
unsigned int	m_wspSize
unsigned int	m_inputSize
	number of modes or quadrature points that are passed as input to an operator More...
unsigned int	m_outputSize
	number of modes or quadrature points that are taken as output from an operator More...
unsigned int	m_inputSizeOther
	Number of modes or quadrature points, opposite to m_inputSize. More...
unsigned int	m_outputSizeOther
	Number of modes or quadrature points, opposite to m_outputSize. More...

Private Member Functions
	BwdTrans_SumFac_Seg (vector< StdRegions::StdExpansionSharedPtr > pCollExp, CoalescedGeomDataSharedPtr pGeomData, StdRegions::FactorMap factors)

Additional Inherited Members
Protected Member Functions inherited from Nektar::Collections::BwdTrans_Helper
	BwdTrans_Helper ()

Detailed Description

Backward transform operator using sum-factorisation (Segment)

Definition at line 407 of file BwdTrans.cpp.

Constructor & Destructor Documentation

~BwdTrans_SumFac_Seg()

Nektar::Collections::BwdTrans_SumFac_Seg::~BwdTrans_SumFac_Seg ( )

finaldefault

BwdTrans_SumFac_Seg()

Nektar::Collections::BwdTrans_SumFac_Seg::BwdTrans_SumFac_Seg ( vector< StdRegions::StdExpansionSharedPtr >  pCollExp, CoalescedGeomDataSharedPtr  pGeomData, StdRegions::FactorMap  factors  )

inlineprivate

Definition at line 450 of file BwdTrans.cpp.

        : Operator(pCollExp, pGeomData, factors), BwdTrans_Helper(),
          m_nquad0(m_stdExp->GetNumPoints(0)),
          m_nmodes0(m_stdExp->GetBasisNumModes(0)),
          m_colldir0(m_stdExp->GetBasis(0)->Collocation()),
          m_base0(m_stdExp->GetBasis(0)->GetBdata())
    {
        m_wspSize = 0;
    }

References Nektar::Collections::Operator::m_wspSize.

Member Function Documentation

operator()() [1/2]

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

inlineoverridevirtual

Perform operation.

Implements Nektar::Collections::Operator.

Definition at line 415 of file BwdTrans.cpp.

    {
        if (m_colldir0)
        {
            Vmath::Vcopy(m_numElmt * m_nmodes0, input.get(), 1, output0.get(),
                         1);
        }
        else
        {
            // out = B0*in;
            Blas::Dgemm('N', 'N', m_nquad0, m_numElmt, m_nmodes0, 1.0,
                        m_base0.get(), m_nquad0, &input[0], m_nmodes0, 0.0,
                        &output0[0], m_nquad0);
        }
    }

References Blas::Dgemm(), m_base0, m_colldir0, m_nmodes0, m_nquad0, Nektar::Collections::Operator::m_numElmt, and Vmath::Vcopy().

operator()() [2/2]

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

inlinefinalvirtual

Implements Nektar::Collections::Operator.

Definition at line 435 of file BwdTrans.cpp.

    {
        ASSERTL0(false, "Not valid for this operator.");
    }

References ASSERTL0.

Member Data Documentation

m_base0

Array<OneD, const NekDouble> Nektar::Collections::BwdTrans_SumFac_Seg::m_base0

protected

Definition at line 447 of file BwdTrans.cpp.

Referenced by operator()().

m_colldir0

const bool Nektar::Collections::BwdTrans_SumFac_Seg::m_colldir0

protected

Definition at line 446 of file BwdTrans.cpp.

Referenced by operator()().

m_nmodes0

const int Nektar::Collections::BwdTrans_SumFac_Seg::m_nmodes0

protected

Definition at line 445 of file BwdTrans.cpp.

Referenced by operator()().

m_nquad0

const int Nektar::Collections::BwdTrans_SumFac_Seg::m_nquad0

protected

Definition at line 444 of file BwdTrans.cpp.

Referenced by operator()().