amrex::ParticleInterpolator::Nearest Struct Reference

A class the implements nearest grid point particle/mesh interpolation. More...

#include <AMReX_ParticleInterpolators.H>

Inheritance diagram for amrex::ParticleInterpolator::Nearest:

Public Member Functions
template<typename P >
AMREX_GPU_DEVICE AMREX_FORCE_INLINE	Nearest (const P &p, amrex::GpuArray< amrex::Real, AMREX_SPACEDIM > const &plo, amrex::GpuArray< amrex::Real, AMREX_SPACEDIM > const &dxi)
Public Member Functions inherited from amrex::ParticleInterpolator::Base< Nearest, int >
AMREX_GPU_DEVICE AMREX_FORCE_INLINE void	ParticleToMesh (const P &p, amrex::Array4< V > const &arr, int src_comp, int dst_comp, int num_comps, F const &f)
	A general function for doing particle-to-mesh interpolation for one particle. More...
AMREX_GPU_DEVICE AMREX_FORCE_INLINE void	MeshToParticle (P &p, amrex::Array4< const V > const &arr, int src_comp, int dst_comp, int num_comps, F const &f, G const &g)
	A general function for doing mesh-to-particle interpolation for one particle. More...

Public Attributes
int	weights [3 *stencil_width]
Public Attributes inherited from amrex::ParticleInterpolator::Base< Nearest, int >
int	index [3]
int *	w

Static Public Attributes
static constexpr int	stencil_width = 1
static constexpr int	nx = (AMREX_SPACEDIM >= 1) ? stencil_width - 1 : 0
static constexpr int	ny = (AMREX_SPACEDIM >= 2) ? stencil_width - 1 : 0
static constexpr int	nz = (AMREX_SPACEDIM >= 3) ? stencil_width - 1 : 0

Detailed Description

A class the implements nearest grid point particle/mesh interpolation.

Usage:

ParticleInterpolator::Nearest interp(p, plo, dxi);
 
  interp.MeshToParticle(p, count, 0, 0, 1,
          [=] AMREX_GPU_DEVICE (amrex::Array4<const int> const& arr,
                                int i, int j, int k, int comp)
          {
              return arr(i, j, k, comp);  // no weighting
          },
          [=] AMREX_GPU_DEVICE (MyParticleContainer::ParticleType& part,
                                int comp, int val)
          {
              part.idata(comp) = val;
          });

Constructor & Destructor Documentation

Nearest()

template<typename P >

AMREX_GPU_DEVICE AMREX_FORCE_INLINE amrex::ParticleInterpolator::Nearest::Nearest ( const P &  p, amrex::GpuArray< amrex::Real, AMREX_SPACEDIM > const &  plo, amrex::GpuArray< amrex::Real, AMREX_SPACEDIM > const &  dxi  )

inline

Member Data Documentation

nx

constexpr int amrex::ParticleInterpolator::Nearest::nx = (AMREX_SPACEDIM >= 1) ? stencil_width - 1 : 0

staticconstexpr

ny

constexpr int amrex::ParticleInterpolator::Nearest::ny = (AMREX_SPACEDIM >= 2) ? stencil_width - 1 : 0

staticconstexpr

nz

constexpr int amrex::ParticleInterpolator::Nearest::nz = (AMREX_SPACEDIM >= 3) ? stencil_width - 1 : 0

staticconstexpr

stencil_width

constexpr int amrex::ParticleInterpolator::Nearest::stencil_width = 1

staticconstexpr

weights

int amrex::ParticleInterpolator::Nearest::weights[3 *stencil_width]

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The documentation for this struct was generated from the following file:

• /home/runner/work/amrex/amrex/Src/Particle/AMReX_ParticleInterpolators.H