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 "MFEMOperatorJacobiSmoother.h"
      13             : #include "MFEMProblem.h"
      14             : 
      15             : registerMooseObject("MooseApp", MFEMOperatorJacobiSmoother);
      16             : 
      17             : InputParameters
      18        2218 : MFEMOperatorJacobiSmoother::validParams()
      19             : {
      20             :   InputParameters params =
      21        2218 :       Moose::MFEM::LORLinearSolverBase<mfem::OperatorJacobiSmoother>::validParams();
      22        4436 :   params.addClassDescription("MFEM solver for performing Jacobi smoothing of the equation system.");
      23        4436 :   params.addParam<mfem::real_t>(
      24             :       "damping",
      25        4436 :       1.0,
      26             :       "Damping factor omega for the scaled-Jacobi iteration y = omega * D^{-1} * x. "
      27             :       "When used as a multigrid smoother, omega must satisfy omega < 2/lambda_max(D^{-1}A).");
      28        2218 :   return params;
      29           0 : }
      30             : 
      31          44 : MFEMOperatorJacobiSmoother::MFEMOperatorJacobiSmoother(const InputParameters & parameters)
      32          44 :   : Moose::MFEM::LORLinearSolverBase<mfem::OperatorJacobiSmoother>(parameters)
      33             : {
      34          44 :   ConstructSolver();
      35          44 : }
      36             : 
      37             : void
      38          44 : MFEMOperatorJacobiSmoother::ConstructSolver()
      39             : {
      40          88 :   auto solver = std::make_unique<mfem::OperatorJacobiSmoother>(getParam<double>("damping"));
      41          44 :   SetSolverParameters(*solver);
      42          44 :   _solver = std::move(solver);
      43          44 : }
      44             : 
      45             : void
      46          75 : MFEMOperatorJacobiSmoother::SetSolverParameters(mfem::OperatorJacobiSmoother & solver)
      47             : {
      48         150 :   solver.iterative_mode = getParam<bool>("use_initial_guess");
      49          75 : }
      50             : 
      51             : #endif