MultiphasePoromechanics.hpp

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/*
 * ------------------------------------------------------------------------------------------------------------
 * SPDX-License-Identifier: LGPL-2.1-only
 *
 * Copyright (c) 2018-2020 Lawrence Livermore National Security LLC
 * Copyright (c) 2018-2020 The Board of Trustees of the Leland Stanford Junior University
 * Copyright (c) 2018-2020 TotalEnergies
 * Copyright (c) 2019-     GEOSX Contributors
 * All rights reserved
 *
 * See top level LICENSE, COPYRIGHT, CONTRIBUTORS, NOTICE, and ACKNOWLEDGEMENTS files for details.
 * ------------------------------------------------------------------------------------------------------------
 */
 
#ifndef GEOS_LINEARALGEBRA_INTERFACES_HYPREMGRMULTIPHASEPOROMECHANICS_HPP_
#define GEOS_LINEARALGEBRA_INTERFACES_HYPREMGRMULTIPHASEPOROMECHANICS_HPP_
 
#include "linearAlgebra/interfaces/hypre/HypreMGR.hpp"
 
namespace geos
{
 
namespace hypre
{
 
namespace mgr
{
 
class MultiphasePoromechanics : public MGRStrategyBase< 3 >
{
public:
  explicit MultiphasePoromechanics( arrayView1d< int const > const & numComponentsPerField )
    : MGRStrategyBase( LvArray::integerConversion< HYPRE_Int >( numComponentsPerField[0] + numComponentsPerField[1] ) )
  {
    // Level 0: eliminate displacement degrees of freedom
    m_labels[0].resize( m_numBlocks - 3 );
    std::iota( m_labels[0].begin(), m_labels[0].end(), 3 );
    // Level 1: eliminate last density which corresponds to the volume constraint equation
    m_labels[1].resize( m_numBlocks - 4 );
    std::iota( m_labels[1].begin(), m_labels[1].end(), 3 );
    // Level 2: eliminate the remaining reservoir densities
    m_labels[2].push_back( 3 ); // pressure
 
    setupLabels();
 
    // Level 0
    m_levelFRelaxType[0]         = MGRFRelaxationType::amgVCycle;
    m_levelFRelaxIters[0]        = 1;
    m_levelInterpType[0]         = MGRInterpolationType::jacobi;
    m_levelRestrictType[0]       = MGRRestrictionType::injection;
    m_levelCoarseGridMethod[0]   = MGRCoarseGridMethod::nonGalerkin;
    m_levelGlobalSmootherType[0] = MGRGlobalSmootherType::none;
 
    // Level 1
    m_levelFRelaxType[1]         = MGRFRelaxationType::jacobi;
    m_levelFRelaxIters[1]        = 1;
    m_levelInterpType[1]         = MGRInterpolationType::jacobi;
    m_levelRestrictType[1]       = MGRRestrictionType::injection;
    m_levelCoarseGridMethod[1]   = MGRCoarseGridMethod::galerkin;
    m_levelGlobalSmootherType[1] = MGRGlobalSmootherType::none;
 
    // Level 2
    m_levelFRelaxType[2]          = MGRFRelaxationType::none;
    m_levelInterpType[2]          = MGRInterpolationType::injection;
    m_levelRestrictType[2]        = MGRRestrictionType::blockColLumped; // True-IMPES
    m_levelCoarseGridMethod[2]    = MGRCoarseGridMethod::galerkinRAI;
    m_levelGlobalSmootherType[2]  = MGRGlobalSmootherType::ilu0;
    m_levelGlobalSmootherIters[2] = 1;
  }
 
  void setup( LinearSolverParameters::MGR const &,
              HyprePrecWrapper & precond,
              HypreMGRData & mgrData )
  {
    setReduction( precond, mgrData );
 
    GEOS_LAI_CHECK_ERROR( HYPRE_MGRSetPMaxElmts( precond.ptr, 0 ));
 
    // Configure the BoomerAMG solver used as F-relaxation for the first level
    setMechanicsFSolver( precond, mgrData );
 
    // Configure the BoomerAMG solver used as mgr coarse solver for the pressure reduced system
    setPressureAMG( mgrData.coarseSolver );
  }
};
 
} // namespace mgr
 
} // namespace hypre
 
} // namespace geos
 
#endif /*GEOS_LINEARALGEBRA_INTERFACES_HYPREMGRMULTIPHASEPOROMECHANICS_HPP_*/