euler.cc (Latest change: Author:Lakshman Anumolu <acrlakshman@yahoo.co.in>, 2019-07-25 22:27:47 -0500, [commit: 74d2125])

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// Copyright 2019 Lakshman Anumolu, Raunak Bardia.
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#include "gals/cpu/temporal-schemes/euler.h"

#include <math.h>

template <typename T, typename T_GRID>
GALS::TEMPORAL_SCHEMES::Euler<T, T_GRID>::Euler()
{
}

template <typename T, typename T_GRID>
GALS::TEMPORAL_SCHEMES::Euler<T, T_GRID>::~Euler()
{
}

template <typename T, typename T_GRID>
void GALS::TEMPORAL_SCHEMES::Euler<T, T_GRID>::compute(const T dt,
                                                       const GALS::CPU::LevelsetVelocity<T_GRID, T> &levelset_velocity,
                                                       GALS::CPU::Levelset<T_GRID, T> &levelset)
{
  const auto &phi_prev = levelset.phiPrev();
  auto &phi = levelset.phi();
  const GALS::CPU::Vec3<int> num_cells = phi.numCells();
  const auto &velocity = levelset_velocity.velocity();

  for (int i = 0; i < num_cells[0]; ++i)
    for (int j = 0; j < num_cells[1]; ++j)
      for (int k = 0; k < num_cells[2]; ++k) {
        phi(i, j, k) = phi_prev(i, j, k) - dt * velocity(i, j, k)[0];  // FIXME
      }
}

template class GALS::TEMPORAL_SCHEMES::Euler<double, GALS::CPU::Grid<double, 1>>;
template class GALS::TEMPORAL_SCHEMES::Euler<double, GALS::CPU::Grid<double, 2>>;
template class GALS::TEMPORAL_SCHEMES::Euler<double, GALS::CPU::Grid<double, 3>>;