P3MLocalMesh Struct Reference

Properties of the local mesh. More...

#include <common.hpp>

Public Member Functions
void	recalc_ld_pos (P3MParameters const &params)
	Recalculate quantities derived from the mesh and box length: ld_pos (position of the left down mesh).
void	calc_local_ca_mesh (P3MParameters const &params, LocalBox const &local_geo, double skin, double space_layer)
	Calculate properties of the local FFT mesh for the charge assignment process.

Public Attributes
Utils::Vector3i	dim
	dimension (size) of local mesh including halo layers.
Utils::Vector3i	dim_no_halo
std::size_t	size
	number of local mesh points including halo layers.
Utils::Vector3i	ld_ind
	index of lower left corner of the local mesh in the global mesh.
Utils::Vector3d	ld_pos
	position of the first local mesh point.
Utils::Vector3i	ld_no_halo
Utils::Vector3i	ur_no_halo
Utils::Vector3i	inner
	dimension of mesh inside node domain.
Utils::Vector3i	in_ld
	inner left down grid point
Utils::Vector3i	in_ur
	inner up right grid point + (1,1,1)
int	margin [6]
	number of margin mesh points.
Utils::Vector3i	n_halo_ld
Utils::Vector3i	n_halo_ur
int	r_margin [6]
	number of margin mesh points from neighbour nodes
int	q_2_off
	offset between mesh lines of the last dimension
int	q_21_off
	offset between mesh lines of the two last dimensions

Detailed Description

Properties of the local mesh.

Definition at line 178 of file p3m/common.hpp.

Member Function Documentation

calc_local_ca_mesh()

void P3MLocalMesh::calc_local_ca_mesh	(	P3MParameters const &	params,
		LocalBox const &	local_geo,
		double	skin,
		double	space_layer
	)

Calculate properties of the local FFT mesh for the charge assignment process.

Definition at line 34 of file common.cpp.

References Utils::Vector< T, N >::broadcast(), dim, dim_no_halo, in_ld, in_ur, inner, ld_ind, ld_no_halo, margin, LocalBox::my_left(), LocalBox::my_right(), n_halo_ld, n_halo_ur, params, q_21_off, q_2_off, round_error_prec, size, stream, and ur_no_halo.

recalc_ld_pos()

void P3MLocalMesh::recalc_ld_pos ( P3MParameters const &  params )

inline

Recalculate quantities derived from the mesh and box length: ld_pos (position of the left down mesh).

Definition at line 212 of file p3m/common.hpp.

References ld_ind, ld_pos, params, and stream.

Referenced by CoulombP3MHeffte< FloatType, Architecture, FFTConfig >::scaleby_box_l(), and DipolarP3MHeffte< FloatType, Architecture, FFTConfig >::scaleby_box_l().

Member Data Documentation

dim

Utils::Vector3i P3MLocalMesh::dim

dimension (size) of local mesh including halo layers.

Definition at line 180 of file p3m/common.hpp.

Referenced by calc_local_ca_mesh(), p3m_calculate_interpolation_weights(), and p3m_send_mesh< FloatType >::resize().

dim_no_halo

Utils::Vector3i P3MLocalMesh::dim_no_halo

Definition at line 181 of file p3m/common.hpp.

Referenced by calc_local_ca_mesh().

in_ld

Utils::Vector3i P3MLocalMesh::in_ld

inner left down grid point

Definition at line 194 of file p3m/common.hpp.

Referenced by calc_local_ca_mesh().

in_ur

Utils::Vector3i P3MLocalMesh::in_ur

inner up right grid point + (1,1,1)

Definition at line 196 of file p3m/common.hpp.

Referenced by calc_local_ca_mesh(), and p3m_send_mesh< FloatType >::resize().

inner

Utils::Vector3i P3MLocalMesh::inner

dimension of mesh inside node domain.

Definition at line 192 of file p3m/common.hpp.

Referenced by calc_local_ca_mesh().

ld_ind

Utils::Vector3i P3MLocalMesh::ld_ind

index of lower left corner of the local mesh in the global mesh.

Definition at line 186 of file p3m/common.hpp.

Referenced by calc_local_ca_mesh(), and recalc_ld_pos().

ld_no_halo

Utils::Vector3i P3MLocalMesh::ld_no_halo

Definition at line 189 of file p3m/common.hpp.

Referenced by calc_local_ca_mesh().

ld_pos

Utils::Vector3d P3MLocalMesh::ld_pos

position of the first local mesh point.

Definition at line 188 of file p3m/common.hpp.

Referenced by p3m_calculate_interpolation_weights(), and recalc_ld_pos().

margin

int P3MLocalMesh::margin[6]

number of margin mesh points.

Definition at line 198 of file p3m/common.hpp.

Referenced by calc_local_ca_mesh(), and p3m_send_mesh< FloatType >::resize().

n_halo_ld

Utils::Vector3i P3MLocalMesh::n_halo_ld

Definition at line 199 of file p3m/common.hpp.

Referenced by calc_local_ca_mesh().

n_halo_ur

Utils::Vector3i P3MLocalMesh::n_halo_ur

Definition at line 200 of file p3m/common.hpp.

Referenced by calc_local_ca_mesh().

q_21_off

int P3MLocalMesh::q_21_off

offset between mesh lines of the two last dimensions

Definition at line 206 of file p3m/common.hpp.

Referenced by calc_local_ca_mesh(), and p3m_interpolate().

q_2_off

int P3MLocalMesh::q_2_off

offset between mesh lines of the last dimension

Definition at line 204 of file p3m/common.hpp.

Referenced by calc_local_ca_mesh(), and p3m_interpolate().

r_margin

int P3MLocalMesh::r_margin[6]

number of margin mesh points from neighbour nodes

Definition at line 202 of file p3m/common.hpp.

size

std::size_t P3MLocalMesh::size

number of local mesh points including halo layers.

Definition at line 183 of file p3m/common.hpp.

Referenced by calc_local_ca_mesh(), and CoulombP3MHeffte< FloatType, Architecture, FFTConfig >::prepare_fft_mesh().

ur_no_halo

Utils::Vector3i P3MLocalMesh::ur_no_halo

Definition at line 190 of file p3m/common.hpp.

Referenced by calc_local_ca_mesh().

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

• p3m/common.hpp
• common.cpp