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
virtual	~BwdTrans_SumFac_Seg ()
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
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
StdRegions::StdExpansionSharedPtr	m_stdExp
unsigned int	m_numElmt
unsigned int	m_wspSize

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

Detailed Description

Backward transform operator using sum-factorisation (Segment)

Definition at line 321 of file BwdTrans.cpp.

Constructor & Destructor Documentation

~BwdTrans_SumFac_Seg()

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

inlinevirtual

Definition at line 326 of file BwdTrans.cpp.

        {
        }

BwdTrans_SumFac_Seg()

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

inlineprivate

Definition at line 370 of file BwdTrans.cpp.

References Nektar::StdRegions::eBwdTrans, Nektar::LibUtilities::eSegment, Nektar::Collections::eSumFac, and Nektar::Collections::GetOperatorFactory().

            : Operator  (pCollExp, pGeomData),
              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;
        }

Member Function Documentation

operator()() [1/2]

virtual 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  )

inlinevirtual

Perform operation.

Implements Nektar::Collections::Operator.

Definition at line 330 of file BwdTrans.cpp.

References Blas::Dgemm(), and Vmath::Vcopy().

        {
            boost::ignore_unused(output1, output2, wsp);
            if(m_colldir0)
            {
                Vmath::Vcopy(m_numElmt*m_nmodes0,input.get(),1,output.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,
                                 &output[0],    m_nquad0);
            }
        }

operator()() [2/2]

virtual void Nektar::Collections::BwdTrans_SumFac_Seg::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 352 of file BwdTrans.cpp.

References ASSERTL0.

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

Member Data Documentation

m_base0

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

protected

Definition at line 367 of file BwdTrans.cpp.

m_colldir0

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

protected

Definition at line 366 of file BwdTrans.cpp.

m_nmodes0

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

protected

Definition at line 365 of file BwdTrans.cpp.

m_nquad0

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

protected

Definition at line 364 of file BwdTrans.cpp.