GlobalLinSysPETScFull.h

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///////////////////////////////////////////////////////////////////////////////
//
// File: GlobalLinSysPETScFull.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,
// and/or sell copies of the Software, and to permit persons to whom the
// 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: GlobalLinSysPETScFull header
//
///////////////////////////////////////////////////////////////////////////////
 
#ifndef NEKTAR_LIB_MULTIREGIONS_GLOBALLINSYSPETSCFULL_H
#define NEKTAR_LIB_MULTIREGIONS_GLOBALLINSYSPETSCFULL_H
 
#include <MultiRegions/AssemblyMap/AssemblyMapCG.h>
#include <MultiRegions/GlobalLinSysPETSc.h>
#include <MultiRegions/MultiRegionsDeclspec.h>
 
namespace Nektar::MultiRegions
{
// Forward declarations
 
// class AssemblyMapDG;
class ExpList;
 
/// A global linear system.
class GlobalLinSysPETScFull : public GlobalLinSysPETSc
{
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)
    {
        return MemoryManager<GlobalLinSysPETScFull>::AllocateSharedPtr(
            pLinSysKey, pExpList, pLocToGloMap);
    }
 
    /// Name of class
    MULTI_REGIONS_EXPORT static std::string className;
 
    /// Constructor for full direct matrix solve.
    MULTI_REGIONS_EXPORT GlobalLinSysPETScFull(
        const GlobalLinSysKey &pLinSysKey,
        const std::weak_ptr<ExpList> &pExpList,
        const std::shared_ptr<AssemblyMap> &pLocToGloMap);
 
    MULTI_REGIONS_EXPORT ~GlobalLinSysPETScFull() override = default;
 
protected:
    /// Solve the linear system for given input and output vectors
    /// using a specified local to global map.
    void v_Solve(const Array<OneD, const NekDouble> &in,
                 Array<OneD, NekDouble> &out,
                 const AssemblyMapSharedPtr &locToGloMap,
                 const Array<OneD, const NekDouble> &dirForcing =
                     NullNekDouble1DArray) override;
    void v_DoMatrixMultiply(const Array<OneD, const NekDouble> &input,
                            Array<OneD, NekDouble> &output) override;
 
private:
    // Local to global map.
    std::shared_ptr<AssemblyMap> m_locToGloMap;
};
} // namespace Nektar::MultiRegions
 
#endif