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 "MFEMHypreGMRES.h"
      13             : #include "MFEMProblem.h"
      14             : 
      15             : registerMooseObject("MooseApp", MFEMHypreGMRES);
      16             : 
      17             : InputParameters
      18        3412 : MFEMHypreGMRES::validParams()
      19             : {
      20        3412 :   InputParameters params = Moose::MFEM::LORLinearSolverBase<mfem::HypreGMRES>::validParams();
      21        6824 :   params.addClassDescription("Hypre solver for the iterative solution of MFEM equation systems "
      22             :                              "using the generalized minimal residual method.");
      23             : 
      24       13648 :   params.addParam<mfem::real_t>("l_tol", 1e-5, "Set the relative tolerance.");
      25       13648 :   params.addParam<mfem::real_t>("l_abs_tol", 1e-50, "Set the absolute tolerance.");
      26       13648 :   params.addParam<int>("l_max_its", 10000, "Set the maximum number of iterations.");
      27       13648 :   params.addParam<int>("kdim", 10, "Set the k-dimension.");
      28       13648 :   params.addParam<int>("print_level", 2, "Set the solver verbosity.");
      29       10236 :   params.addParam<MFEMSolverName>("preconditioner", "Optional choice of preconditioner to use.");
      30             : 
      31        3412 :   return params;
      32           0 : }
      33             : 
      34         640 : MFEMHypreGMRES::MFEMHypreGMRES(const InputParameters & parameters)
      35         640 :   : Moose::MFEM::LORLinearSolverBase<mfem::HypreGMRES>(parameters)
      36             : {
      37         640 :   ConstructSolver();
      38         640 : }
      39             : 
      40             : void
      41         666 : MFEMHypreGMRES::ConstructSolver()
      42             : {
      43         666 :   auto solver = std::make_unique<mfem::HypreGMRES>(getMFEMProblem().getComm());
      44         666 :   SetSolverParameters(*solver);
      45         666 :   SetPreconditioner(*solver);
      46         666 :   _solver = std::move(solver);
      47         666 : }
      48             : 
      49             : void
      50         668 : MFEMHypreGMRES::SetSolverParameters(mfem::HypreGMRES & solver)
      51             : {
      52        1336 :   solver.iterative_mode = getParam<bool>("use_initial_guess");
      53        1336 :   solver.SetTol(getParam<mfem::real_t>("l_tol"));
      54        1336 :   solver.SetAbsTol(getParam<mfem::real_t>("l_abs_tol"));
      55        1336 :   solver.SetMaxIter(getParam<int>("l_max_its"));
      56        1336 :   solver.SetKDim(getParam<int>("kdim"));
      57        1336 :   solver.SetPrintLevel(getParam<int>("print_level"));
      58         668 : }
      59             : 
      60             : #endif