KokkosCoupledForceNodalKernel.h

Go to the documentation of this file.

//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html
 
#pragma once
 
#include "KokkosNodalKernel.h"
 
class KokkosCoupledForceNodalKernel : public Moose::Kokkos::NodalKernel
{
public:
  static InputParameters validParams();
 
  KokkosCoupledForceNodalKernel(const InputParameters & parameters);
 
  template <typename Derived>
  KOKKOS_FUNCTION Real computeQpResidual(const unsigned int qp, AssemblyDatum & datum) const;
  template <typename Derived>
  KOKKOS_FUNCTION Real computeQpOffDiagJacobian(const unsigned int jvar,
                                                const unsigned int qp,
                                                AssemblyDatum & datum) const;
 
private:
  const unsigned int _v_var;
 
  const Moose::Kokkos::VariableValue _v;
 
  const Real _coef;
};
 
template <typename Derived>
KOKKOS_FUNCTION Real
KokkosCoupledForceNodalKernel::computeQpResidual(const unsigned int qp, AssemblyDatum & datum) const
{
  return -_coef * _v(datum, qp);
}
 
template <typename Derived>
KOKKOS_FUNCTION Real
KokkosCoupledForceNodalKernel::computeQpOffDiagJacobian(const unsigned int jvar,
                                                        const unsigned int /* qp */,
                                                        AssemblyDatum & /* datum */) const
{
  if (jvar == _v_var)
    return -_coef;
  return 0;
}