amrex::ParticleInterpolator::Linear Struct Reference

A class the implements linear (CIC) particle/mesh interpolation. More...

#include <AMReX_ParticleInterpolators.H>

Inheritance diagram for amrex::ParticleInterpolator::Linear:

Public Member Functions
template<typename P >
AMREX_GPU_DEVICE AMREX_FORCE_INLINE	Linear (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< Linear, amrex::Real >
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
amrex::Real	weights [3 *stencil_width]
Public Attributes inherited from amrex::ParticleInterpolator::Base< Linear, amrex::Real >
int	index [3]
amrex::Real *	w

Static Public Attributes
static constexpr int	stencil_width = 2
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 linear (CIC) particle/mesh interpolation.

Usage:

ParticleInterpolator::Linear interp(p, plo, dxi);
 
interp.ParticleToMesh(p, rho, 0, 0, 1,
            [=] AMREX_GPU_DEVICE (const MyPC::ParticleType& part, int comp)
            {
                return part.rdata(comp);  // no weighting
            });

Constructor & Destructor Documentation

Linear()

template<typename P >

AMREX_GPU_DEVICE AMREX_FORCE_INLINE amrex::ParticleInterpolator::Linear::Linear ( 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::Linear::nx = (AMREX_SPACEDIM >= 1) ? stencil_width - 1 : 0

staticconstexpr

ny

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

staticconstexpr

nz

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

staticconstexpr

stencil_width

constexpr int amrex::ParticleInterpolator::Linear::stencil_width = 2

staticconstexpr

weights

amrex::Real amrex::ParticleInterpolator::Linear::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