KokkosElementVariableStatistics.h

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//* 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 "KokkosElementStatistics.h"
 
class KokkosElementVariableStatistics : public KokkosElementStatistics
{
public:
  static InputParameters validParams();
 
  KokkosElementVariableStatistics(const InputParameters & parameters);
 
  KOKKOS_FUNCTION Kokkos::pair<Real, Real> computeValue(Datum & datum) const;
 
protected:
  const Moose::Kokkos::VariableValue _v;
};
 
KOKKOS_FUNCTION inline Kokkos::pair<Real, Real>
KokkosElementVariableStatistics::computeValue(Datum & datum) const
{
  Real val = 0;
  Real vol = 0;
 
  for (unsigned int qp = 0; qp < datum.n_qps(); ++qp)
  {
    val += _v(datum, qp) * datum.JxW(qp);
    vol += datum.JxW(qp);
  }
 
  val /= vol;
 
  return {val, vol};
}