GlobalLinSysDirectStaticCond.h

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///////////////////////////////////////////////////////////////////////////////
//
// File: GlobalLinSysDirectStaticCond.h
//
// For more information, please see: http://www.nektar.info
//
// The MIT License
//
// Copyright (c) 2006 Division of Applied Mathematics, Brown University (USA),
// Department of Aeronautics, Imperial College London (UK), and Scientific
// Computing and Imaging Institute, University of Utah (USA).
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
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// Description: GlobalLinSysStaticCond header
//
///////////////////////////////////////////////////////////////////////////////
#ifndef NEKTAR_LIB_MULTIREGIONS_GLOBALLINSYSDIRECTSTATICCOND_H
#define NEKTAR_LIB_MULTIREGIONS_GLOBALLINSYSDIRECTSTATICCOND_H
 
#include <MultiRegions/GlobalLinSysDirect.h>
#include <MultiRegions/GlobalLinSysStaticCond.h>
#include <MultiRegions/MultiRegionsDeclspec.h>
 
namespace Nektar::MultiRegions
{
// Forward declarations
class ExpList;
class GlobalLinSysDirectStaticCond;
 
typedef std::shared_ptr<GlobalLinSysDirectStaticCond>
    GlobalLinSysDirectStaticCondSharedPtr;
 
/// A global linear system.
class GlobalLinSysDirectStaticCond : virtual public GlobalLinSysDirect,
                                     virtual public GlobalLinSysStaticCond
{
public:
    /// Creates an instance of this class
    static GlobalLinSysSharedPtr create(
        const GlobalLinSysKey &pLinSysKey,
        const std::weak_ptr<ExpList> &pExpList,
        const std::shared_ptr<AssemblyMap> &pLocToGloMap)
    {
        GlobalLinSysDirectStaticCondSharedPtr ret =
            MemoryManager<GlobalLinSysDirectStaticCond>::AllocateSharedPtr(
                pLinSysKey, pExpList, pLocToGloMap);
        ret->InitObject();
        return ret;
    }
 
    /// Name of class
    MULTI_REGIONS_EXPORT static std::string className;
    static std::string className2;
 
    /// Constructor for full direct matrix solve.
    MULTI_REGIONS_EXPORT GlobalLinSysDirectStaticCond(
        const GlobalLinSysKey &mkey, const std::weak_ptr<ExpList> &pExpList,
        const std::shared_ptr<AssemblyMap> &locToGloMap);
 
    /// Constructor for full direct matrix solve.
    MULTI_REGIONS_EXPORT GlobalLinSysDirectStaticCond(
        const GlobalLinSysKey &mkey, const std::weak_ptr<ExpList> &pExpList,
        const DNekScalBlkMatSharedPtr pSchurCompl,
        const DNekScalBlkMatSharedPtr pBinvD, const DNekScalBlkMatSharedPtr pC,
        const DNekScalBlkMatSharedPtr pInvD,
        const std::shared_ptr<AssemblyMap> &locToGloMap);
 
    MULTI_REGIONS_EXPORT ~GlobalLinSysDirectStaticCond() override;
 
protected:
    void v_AssembleSchurComplement(
        std::shared_ptr<AssemblyMap> pLocToGloMap) override;
    GlobalLinSysStaticCondSharedPtr v_Recurse(
        const GlobalLinSysKey &mkey, const std::weak_ptr<ExpList> &pExpList,
        const DNekScalBlkMatSharedPtr pSchurCompl,
        const DNekScalBlkMatSharedPtr pBinvD, const DNekScalBlkMatSharedPtr pC,
        const DNekScalBlkMatSharedPtr pInvD,
        const std::shared_ptr<AssemblyMap> &l2gMap) override;
 
private:
    /// Matrix Storage type for known matrices
    MatrixStorage DetermineMatrixStorage(
        const std::shared_ptr<AssemblyMap> &locToGloMap);
 
    /// Solve the linear system for given input and output vectors.
    void v_SolveLinearSystem(const int pNumRows,
                             const Array<OneD, const NekDouble> &pInput,
                             Array<OneD, NekDouble> &pOutput,
                             const AssemblyMapSharedPtr &locToGloMap,
                             const int pNumDir) override;
};
} // namespace Nektar::MultiRegions
 
#endif