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             : #pragma once
      11             : 
      12             : #include "KokkosIntegratedBC.h"
      13             : 
      14             : /**
      15             :  * Implements a constant Neumann BC where grad(u) is a equal to a postprocessor on the boundary.
      16             :  * Uses the term produced from integrating the diffusion operator by parts.
      17             :  */
      18             : class KokkosPostprocessorNeumannBC final
      19             :   : public Moose::Kokkos::IntegratedBC<KokkosPostprocessorNeumannBC>
      20             : {
      21             : public:
      22             :   /**
      23             :    * Factory constructor, takes parameters so that all derived classes can be built using the same
      24             :    * constructor.
      25             :    */
      26             :   static InputParameters validParams();
      27             : 
      28             :   KokkosPostprocessorNeumannBC(const InputParameters & parameters);
      29             : 
      30             :   KOKKOS_FUNCTION Real computeQpResidual(const unsigned int i,
      31             :                                          const unsigned int qp,
      32             :                                          ResidualDatum & datum) const;
      33             : 
      34             : protected:
      35             :   /// Value of grad(u) on the boundary.
      36             :   Moose::Kokkos::PostprocessorValue _value;
      37             : };
      38             : 
      39             : KOKKOS_FUNCTION inline Real
      40        6240 : KokkosPostprocessorNeumannBC::computeQpResidual(const unsigned int i,
      41             :                                                 const unsigned int qp,
      42             :                                                 ResidualDatum & datum) const
      43             : {
      44        6240 :   return -_test(datum, i, qp) * _value;
      45             : }