Nektar::Collections::IProductWRTDerivBase_SumFac_Seg Class Reference

Inner product WRT deriv base operator using sum-factorisation (Segment) More...

Inheritance diagram for Nektar::Collections::IProductWRTDerivBase_SumFac_Seg:

Public Member Functions
	~IProductWRTDerivBase_SumFac_Seg () final=default
void	operator() (const Array< OneD, const NekDouble > &entry0, Array< OneD, NekDouble > &entry1, Array< OneD, NekDouble > &entry2, Array< OneD, NekDouble > &entry3, Array< OneD, NekDouble > &wsp) final
	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
Array< OneD, const NekDouble >	m_jacWStdW
Array< OneD, const NekDouble >	m_derbase0
Array< TwoD, const NekDouble >	m_derivFac
int	m_coordim
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
	IProductWRTDerivBase_SumFac_Seg (vector< StdRegions::StdExpansionSharedPtr > pCollExp, CoalescedGeomDataSharedPtr pGeomData, StdRegions::FactorMap factors)
Private Member Functions inherited from Nektar::Collections::IProductWRTDerivBase_Helper
	IProductWRTDerivBase_Helper ()

Detailed Description

Inner product WRT deriv base operator using sum-factorisation (Segment)

Definition at line 709 of file IProductWRTDerivBase.cpp.

Constructor & Destructor Documentation

~IProductWRTDerivBase_SumFac_Seg()

Nektar::Collections::IProductWRTDerivBase_SumFac_Seg::~IProductWRTDerivBase_SumFac_Seg ( )

finaldefault

IProductWRTDerivBase_SumFac_Seg()

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

inlineprivate

Definition at line 787 of file IProductWRTDerivBase.cpp.

        : Operator(pCollExp, pGeomData, factors), IProductWRTDerivBase_Helper(),
          m_nquad0(m_stdExp->GetNumPoints(0)),
          m_nmodes0(m_stdExp->GetBasisNumModes(0)),
          m_derbase0(m_stdExp->GetBasis(0)->GetDbdata())
    {
        m_coordim  = pCollExp[0]->GetCoordim();
        m_wspSize  = m_numElmt * m_nquad0;
        m_derivFac = pGeomData->GetDerivFactors(pCollExp);
        m_jacWStdW = pGeomData->GetJacWithStdWeights(pCollExp);
    }

References m_coordim, m_derivFac, m_jacWStdW, m_nquad0, Nektar::Collections::Operator::m_numElmt, and Nektar::Collections::Operator::m_wspSize.

Member Function Documentation

operator()() [1/2]

void Nektar::Collections::IProductWRTDerivBase_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  )

inlinefinalvirtual

Perform operation.

Implements Nektar::Collections::Operator.

Definition at line 717 of file IProductWRTDerivBase.cpp.

    {
        Array<OneD, Array<OneD, const NekDouble>> in(3);
        Array<OneD, NekDouble> output;
 
        output = (m_coordim == 3) ? entry3 : (m_coordim == 2) ? entry2 : entry1;
 
        in[0] = entry0;
        in[1] = entry1;
        in[2] = entry2;
 
        // calculate dx/dxi in[0] + dy/dxi in[1] + dz/dxi in[2]
        if (m_isDeformed)
        {
            Vmath::Vmul(m_wspSize, m_derivFac[0], 1, in[0], 1, wsp, 1);
            for (int i = 1; i < m_coordim; ++i)
            {
                Vmath::Vvtvp(m_wspSize, m_derivFac[i], 1, in[i], 1, wsp, 1, wsp,
                             1);
            }
        }
        else
        {
            Array<OneD, NekDouble> t;
            for (int e = 0; e < m_numElmt; ++e)
            {
                Vmath::Smul(m_nquad0, m_derivFac[0][e], in[0] + e * m_nquad0, 1,
                            t = wsp + e * m_nquad0, 1);
            }
 
            for (int i = 1; i < m_coordim; ++i)
            {
                for (int e = 0; e < m_numElmt; ++e)
                {
                    Vmath::Svtvp(m_nquad0, m_derivFac[i][e],
                                 in[i] + e * m_nquad0, 1, wsp + e * m_nquad0, 1,
                                 t = wsp + e * m_nquad0, 1);
                }
            }
        }
 
        Vmath::Vmul(m_wspSize, m_jacWStdW, 1, wsp, 1, wsp, 1);
 
        // out = B0*in;
        Blas::Dgemm('T', 'N', m_nmodes0, m_numElmt, m_nquad0, 1.0,
                    m_derbase0.data(), m_nquad0, &wsp[0], m_nquad0, 0.0,
                    &output[0], m_nmodes0);
    }

References Blas::Dgemm(), m_coordim, m_derbase0, m_derivFac, Nektar::Collections::Operator::m_isDeformed, m_jacWStdW, m_nmodes0, m_nquad0, Nektar::Collections::Operator::m_numElmt, Nektar::Collections::Operator::m_wspSize, Vmath::Smul(), Vmath::Svtvp(), Vmath::Vmul(), and Vmath::Vvtvp().

operator()() [2/2]

void Nektar::Collections::IProductWRTDerivBase_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 770 of file IProductWRTDerivBase.cpp.

    {
        NEKERROR(ErrorUtil::efatal, "Not valid for this operator.");
    }

References Nektar::ErrorUtil::efatal, and NEKERROR.

Member Data Documentation

m_coordim

int Nektar::Collections::IProductWRTDerivBase_SumFac_Seg::m_coordim

protected

Definition at line 784 of file IProductWRTDerivBase.cpp.

Referenced by IProductWRTDerivBase_SumFac_Seg(), and operator()().

m_derbase0

Array<OneD, const NekDouble> Nektar::Collections::IProductWRTDerivBase_SumFac_Seg::m_derbase0

protected

Definition at line 782 of file IProductWRTDerivBase.cpp.

Referenced by operator()().

m_derivFac

Array<TwoD, const NekDouble> Nektar::Collections::IProductWRTDerivBase_SumFac_Seg::m_derivFac

protected

Definition at line 783 of file IProductWRTDerivBase.cpp.

Referenced by IProductWRTDerivBase_SumFac_Seg(), and operator()().

m_jacWStdW

Array<OneD, const NekDouble> Nektar::Collections::IProductWRTDerivBase_SumFac_Seg::m_jacWStdW

protected

Definition at line 781 of file IProductWRTDerivBase.cpp.

Referenced by IProductWRTDerivBase_SumFac_Seg(), and operator()().

m_nmodes0

const int Nektar::Collections::IProductWRTDerivBase_SumFac_Seg::m_nmodes0

protected

Definition at line 780 of file IProductWRTDerivBase.cpp.

Referenced by operator()().

m_nquad0

const int Nektar::Collections::IProductWRTDerivBase_SumFac_Seg::m_nquad0

protected

Definition at line 779 of file IProductWRTDerivBase.cpp.

Referenced by IProductWRTDerivBase_SumFac_Seg(), and operator()().