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 "MFEMEigenvaluesPostprocessor.h"
      13             : #include "MFEMEigenproblem.h"
      14             : #include "MFEMEigensolverBase.h"
      15             : 
      16             : registerMooseObject("MooseApp", MFEMEigenvaluesPostprocessor);
      17             : 
      18             : InputParameters
      19        2150 : MFEMEigenvaluesPostprocessor::validParams()
      20             : {
      21        2150 :   InputParameters params = MFEMVectorPostprocessor::validParams();
      22        2150 :   params.addClassDescription("Retrieves the eigenvalues from an eigensolve for exporting.");
      23        2150 :   return params;
      24           0 : }
      25             : 
      26          26 : MFEMEigenvaluesPostprocessor::MFEMEigenvaluesPostprocessor(const InputParameters & parameters)
      27          52 :   : MFEMVectorPostprocessor(parameters), _eigenvalues(this->declareVector("eigenvalues"))
      28             : {
      29          26 : }
      30             : 
      31             : void
      32          26 : MFEMEigenvaluesPostprocessor::initialize()
      33             : {
      34          26 : }
      35             : 
      36             : void
      37          26 : MFEMEigenvaluesPostprocessor::execute()
      38             : {
      39             :   auto eigensolver = std::dynamic_pointer_cast<MFEMEigensolverBase>(
      40          26 :       getMFEMProblem().getProblemData().jacobian_solver);
      41          26 :   if (!eigensolver)
      42           0 :     mooseError("The solver is not an eigensolver, cannot retrieve eigenvalues.");
      43             : 
      44          26 :   mfem::Array<mfem::real_t> eigenvalues;
      45          26 :   eigensolver->getEigenvalues(eigenvalues);
      46             : 
      47          52 :   const auto ev_dim = getMFEMProblem().getParam<int>("num_modes");
      48          26 :   _eigenvalues.resize(ev_dim);
      49             : 
      50         156 :   for (int i = 0; i < ev_dim; i++)
      51         130 :     _eigenvalues[i] = eigenvalues[i];
      52          26 : }
      53             : 
      54             : #endif