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 "MFEMHypreFGMRES.h"
      13             : #include "MFEMProblem.h"
      14             : 
      15             : registerMooseObject("MooseApp", MFEMHypreFGMRES);
      16             : 
      17             : InputParameters
      18        2138 : MFEMHypreFGMRES::validParams()
      19             : {
      20        2138 :   InputParameters params = Moose::MFEM::LORLinearSolverBase<mfem::HypreFGMRES>::validParams();
      21        4276 :   params.addClassDescription("Hypre solver for the iterative solution of MFEM equation systems "
      22             :                              "using the flexible generalized minimal residual method.");
      23        8552 :   params.addParam<mfem::real_t>("l_tol", 1e-5, "Set the relative tolerance.");
      24        8552 :   params.addParam<int>("l_max_its", 10000, "Set the maximum number of iterations.");
      25        8552 :   params.addParam<int>("kdim", 10, "Set the k-dimension.");
      26        8552 :   params.addParam<int>("print_level", 2, "Set the solver verbosity.");
      27        6414 :   params.addParam<MFEMSolverName>("preconditioner", "Optional choice of preconditioner to use.");
      28             : 
      29        2138 :   return params;
      30           0 : }
      31             : 
      32           4 : MFEMHypreFGMRES::MFEMHypreFGMRES(const InputParameters & parameters)
      33           4 :   : Moose::MFEM::LORLinearSolverBase<mfem::HypreFGMRES>(parameters)
      34             : {
      35           4 :   ConstructSolver();
      36           4 : }
      37             : 
      38             : void
      39           4 : MFEMHypreFGMRES::ConstructSolver()
      40             : {
      41           4 :   auto solver = std::make_unique<mfem::HypreFGMRES>(getMFEMProblem().getComm());
      42           4 :   SetSolverParameters(*solver);
      43           4 :   SetPreconditioner(*solver);
      44           4 :   _solver = std::move(solver);
      45           4 : }
      46             : 
      47             : void
      48           6 : MFEMHypreFGMRES::SetSolverParameters(mfem::HypreFGMRES & solver)
      49             : {
      50          12 :   solver.iterative_mode = getParam<bool>("use_initial_guess");
      51          12 :   solver.SetTol(getParam<mfem::real_t>("l_tol"));
      52          12 :   solver.SetMaxIter(getParam<int>("l_max_its"));
      53          12 :   solver.SetKDim(getParam<int>("kdim"));
      54          12 :   solver.SetPrintLevel(getParam<int>("print_level"));
      55           6 : }
      56             : 
      57             : #endif