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 "MFEMHypreLOBPCG.h"
      13             : #include "MFEMProblem.h"
      14             : 
      15             : registerMooseObject("MooseApp", MFEMHypreLOBPCG);
      16             : 
      17             : InputParameters
      18        2124 : MFEMHypreLOBPCG::validParams()
      19             : {
      20        2124 :   InputParameters params = Moose::MFEM::EigensolverBase::validParams();
      21             : 
      22        4248 :   params.addClassDescription("Locally Optimal Block PCG eigensolver to iteratively compute the "
      23             :                              "lowest eigenmodes of a generalized eigenvalue problem.");
      24        6372 :   params.addParam<int>("random_seed", 123, "Set the random seed for the solver.");
      25             : 
      26        2124 :   return params;
      27           0 : }
      28             : 
      29          13 : MFEMHypreLOBPCG::MFEMHypreLOBPCG(const InputParameters & parameters)
      30          13 :   : Moose::MFEM::EigensolverBase(parameters)
      31             : {
      32          13 :   ConstructSolver();
      33          13 : }
      34             : 
      35             : void
      36          13 : MFEMHypreLOBPCG::ConstructSolver()
      37             : {
      38          13 :   _eigensolver = std::make_unique<mfem::HypreLOBPCG>(getMFEMProblem().getComm());
      39             : 
      40          13 :   _eigensolver->SetNumModes(_num_modes);
      41          26 :   _eigensolver->SetRandomSeed(getParam<int>("random_seed"));
      42          26 :   _eigensolver->SetMaxIter(getParam<int>("l_max_its"));
      43          26 :   _eigensolver->SetTol(getParam<mfem::real_t>("l_tol"));
      44          13 :   _eigensolver->SetPrecondUsageMode(1);
      45          26 :   _eigensolver->SetPrintLevel(getParam<int>("print_level"));
      46          13 :   SetPreconditioner(*_eigensolver);
      47          13 : }
      48             : 
      49             : #endif