#include <GlobalLinSysXxt.h>

Inheritance diagram for Nektar::MultiRegions::GlobalLinSysXxt:

Collaboration diagram for Nektar::MultiRegions::GlobalLinSysXxt:

Public Member Functions
	GlobalLinSysXxt (const GlobalLinSysKey &pKey, const boost::weak_ptr< ExpList > &pExp, const boost::shared_ptr< AssemblyMap > &pLocToGloMap)
	Constructor for full direct matrix solve.
virtual	~GlobalLinSysXxt ()
Public Member Functions inherited from Nektar::MultiRegions::GlobalLinSys
	GlobalLinSys (const GlobalLinSysKey &pKey, const boost::weak_ptr< ExpList > &pExpList, const boost::shared_ptr< AssemblyMap > &pLocToGloMap)
	Constructor for full direct matrix solve.
virtual	~GlobalLinSys ()
const GlobalLinSysKey &	GetKey (void) const
	Returns the key associated with the system.
const boost::weak_ptr< ExpList > &	GetLocMat (void) const
void	InitObject ()
void	Initialise (const boost::shared_ptr< AssemblyMap > &pLocToGloMap)
void	Solve (const Array< OneD, const NekDouble > &in, Array< OneD, NekDouble > &out, const AssemblyMapSharedPtr &locToGloMap, const Array< OneD, const NekDouble > &dirForcing=NullNekDouble1DArray)
	Solve the linear system for given input and output vectors using a specified local to global map.
boost::shared_ptr< GlobalLinSys >	GetSharedThisPtr ()
	Returns a shared pointer to the current object.
int	GetNumBlocks ()
DNekScalMatSharedPtr	GetBlock (unsigned int n)
DNekScalBlkMatSharedPtr	GetStaticCondBlock (unsigned int n)
void	DropStaticCondBlock (unsigned int n)
void	SolveLinearSystem (const int pNumRows, const Array< OneD, const NekDouble > &pInput, Array< OneD, NekDouble > &pOutput, const AssemblyMapSharedPtr &locToGloMap, const int pNumDir=0)
	Solve the linear system for given input and output vectors.

Protected Member Functions
virtual void	v_SolveLinearSystem (const int pNumRows, const Array< OneD, const NekDouble > &pInput, Array< OneD, NekDouble > &pOutput, const AssemblyMapSharedPtr &locToGloMap, const int pNumDir=0)
	Solve the linear system for given input and output vectors.
void	GlobalToLocalNoSign (const Array< OneD, const NekDouble > &global, Array< OneD, NekDouble > &local)
void	LocalToGlobalNoSign (const Array< OneD, const NekDouble > &local, Array< OneD, NekDouble > &global)
Protected Member Functions inherited from Nektar::MultiRegions::GlobalLinSys
virtual int	v_GetNumBlocks ()
	Get the number of blocks in this system.
virtual DNekScalMatSharedPtr	v_GetBlock (unsigned int n)
	Retrieves the block matrix from n-th expansion using the matrix key provided by the m_linSysKey.
virtual DNekScalBlkMatSharedPtr	v_GetStaticCondBlock (unsigned int n)
	Retrieves a the static condensation block matrices from n-th expansion using the matrix key provided by the m_linSysKey.
virtual void	v_DropStaticCondBlock (unsigned int n)
	Releases the static condensation block matrices from NekManager of n-th expansion using the matrix key provided by the m_linSysKey.

Protected Attributes
struct Xxt::crs_data *	m_crsData
Array< OneD, unsigned int >	m_Ai
Array< OneD, unsigned int >	m_Aj
Array< OneD, double >	m_Ar
Array< OneD, NekDouble >	m_locToGloSignMult
Array< OneD, int >	m_map
Protected Attributes inherited from Nektar::MultiRegions::GlobalLinSys
const GlobalLinSysKey	m_linSysKey
	Key associated with this linear system.
const boost::weak_ptr< ExpList >	m_expList
	Local Matrix System.
const map< int, RobinBCInfoSharedPtr >	m_robinBCInfo
	Robin boundary info.

Detailed Description

Solves a linear system using direct methods.

Definition at line 29 of file GlobalLinSysXxt.h.

Constructor & Destructor Documentation

Nektar::MultiRegions::GlobalLinSysXxt::GlobalLinSysXxt	(	const GlobalLinSysKey &	pKey,
		const boost::weak_ptr< ExpList > &	pExp,
		const boost::shared_ptr< AssemblyMap > &	pLocToGloMap
	)

Constructor for full direct matrix solve.

Definition at line 50 of file GlobalLinSysXxt.cpp.

                : GlobalLinSys(pKey, pExp, pLocToGloMap)
        {
        }

Nektar::MultiRegions::GlobalLinSysXxt::~GlobalLinSysXxt ( )

virtual

Definition at line 59 of file GlobalLinSysXxt.cpp.

References Gs::Finalise(), and m_crsData.

        {
            Xxt::Finalise(m_crsData);
        }

Member Function Documentation

void Nektar::MultiRegions::GlobalLinSysXxt::GlobalToLocalNoSign	(	const Array< OneD, const NekDouble > &	global,
		Array< OneD, NekDouble > &	local
	)

protected

Definition at line 80 of file GlobalLinSysXxt.cpp.

References Vmath::Gathr(), m_locToGloSignMult, and m_map.

Referenced by v_SolveLinearSystem().

        {
            Vmath::Gathr(m_map.num_elements(), m_locToGloSignMult.get(), global.get(), m_map.get(), local.get());
        }

void Nektar::MultiRegions::GlobalLinSysXxt::LocalToGlobalNoSign	(	const Array< OneD, const NekDouble > &	local,
		Array< OneD, NekDouble > &	global
	)

protected

Definition at line 86 of file GlobalLinSysXxt.cpp.

References m_map, and Vmath::Scatr().

Referenced by v_SolveLinearSystem().

        {
            Vmath::Scatr(m_map.num_elements(), local.get(), m_map.get(), global.get());
        }

void Nektar::MultiRegions::GlobalLinSysXxt::v_SolveLinearSystem	(	const int	pNumRows,
		const Array< OneD, const NekDouble > &	pInput,
		Array< OneD, NekDouble > &	pOutput,
		const AssemblyMapSharedPtr &	locToGloMap,
		const int	pNumDir = `0`
	)

protectedvirtual

Solve the linear system for given input and output vectors.

Implements Nektar::MultiRegions::GlobalLinSys.

Definition at line 65 of file GlobalLinSysXxt.cpp.

References GlobalToLocalNoSign(), LocalToGlobalNoSign(), m_crsData, m_map, and Nektar::MultiRegions::GlobalLinSys::Solve().

        {
            int nLocal = m_map.num_elements();
            Array<OneD, NekDouble> vLocalIn(nLocal, 0.0);
            Array<OneD, NekDouble> vLocalOut(nLocal, 0.0);
            GlobalToLocalNoSign(pInput, vLocalIn);
            Xxt::Solve(vLocalOut, m_crsData, vLocalIn);
            LocalToGlobalNoSign(vLocalOut, pOutput);
        }