Line data    Source code

       1             : //* This file is part of the MOOSE framework
       2             : //* https://mooseframework.inl.gov
       3             : //*
       4             : //* All rights reserved, see COPYRIGHT for full restrictions
       5             : //* https://github.com/idaholab/moose/blob/master/COPYRIGHT
       6             : //*
       7             : //* Licensed under LGPL 2.1, please see LICENSE for details
       8             : //* https://www.gnu.org/licenses/lgpl-2.1.html
       9             : 
      10             : #ifdef MOOSE_MFEM_ENABLED
      11             : 
      12             : #include "MFEMHypreBoomerAMG.h"
      13             : #include "MFEMFESpace.h"
      14             : #include "MFEMProblem.h"
      15             : 
      16             : registerMooseObject("MooseApp", MFEMHypreBoomerAMG);
      17             : 
      18             : InputParameters
      19        3726 : MFEMHypreBoomerAMG::validParams()
      20             : {
      21        3726 :   InputParameters params = Moose::MFEM::LORLinearSolverBase<mfem::HypreBoomerAMG>::validParams();
      22        7452 :   params.addClassDescription("Hypre BoomerAMG solver and preconditioner for the iterative solution "
      23             :                              "of MFEM equation systems.");
      24       14904 :   params.addParam<mfem::real_t>("l_tol", 1e-5, "Set the relative tolerance.");
      25       14904 :   params.addParam<int>("l_max_its", 10000, "Set the maximum number of iterations.");
      26       14904 :   params.addParam<int>("print_level", 2, "Set the solver verbosity.");
      27       14904 :   params.addParam<MFEMFESpaceName>(
      28             :       "fespace", "H1 FESpace to use in HypreBoomerAMG setup for elasticity problems.");
      29       11178 :   params.addParam<mfem::real_t>(
      30        7452 :       "strength_threshold", 0.25, "HypreBoomerAMG strong threshold. Defaults to 0.25.");
      31       14904 :   MooseEnum errmode("ignore=0 warn=1 abort=2", "abort", false);
      32       11178 :   params.addParam<MooseEnum>("error_mode", errmode, "Set the behavior for treating hypre errors.");
      33        7452 :   return params;
      34        3726 : }
      35             : 
      36         797 : MFEMHypreBoomerAMG::MFEMHypreBoomerAMG(const InputParameters & parameters)
      37             :   : Moose::MFEM::LORLinearSolverBase<mfem::HypreBoomerAMG>(parameters),
      38         780 :     _mfem_fespace(
      39         797 :         isParamSetByUser("fespace")
      40         797 :             ? getMFEMProblem()
      41         865 :                   .getMFEMObject<MFEMFESpace>("MFEMFESpace", getParam<MFEMFESpaceName>("fespace"))
      42             :                   .getFESpace()
      43         797 :             : nullptr)
      44             : {
      45         797 :   ConstructSolver();
      46         797 : }
      47             : 
      48         789 : MFEMHypreBoomerAMG::~MFEMHypreBoomerAMG() { _solver.reset(); }
      49             : 
      50             : void
      51         823 : MFEMHypreBoomerAMG::ConstructSolver()
      52             : {
      53         823 :   auto solver = std::make_unique<mfem::HypreBoomerAMG>();
      54         823 :   SetSolverParameters(*solver);
      55         823 :   _solver = std::move(solver);
      56         823 : }
      57             : 
      58             : void
      59         825 : MFEMHypreBoomerAMG::SetSolverParameters(mfem::HypreBoomerAMG & solver)
      60             : {
      61        1650 :   solver.iterative_mode = getParam<bool>("use_initial_guess");
      62        1650 :   solver.SetTol(getParam<mfem::real_t>("l_tol"));
      63        1650 :   solver.SetMaxIter(getParam<int>("l_max_its"));
      64        1650 :   solver.SetPrintLevel(getParam<int>("print_level"));
      65        1650 :   solver.SetStrengthThresh(getParam<mfem::real_t>("strength_threshold"));
      66        1650 :   solver.SetErrorMode(mfem::HypreSolver::ErrorMode(int(getParam<MooseEnum>("error_mode"))));
      67             : 
      68         825 :   if (_mfem_fespace && !mfem::HypreUsingGPU())
      69          11 :     solver.SetElasticityOptions(_mfem_fespace.get());
      70         825 : }
      71             : 
      72             : #endif