LSQGradientFunctor Struct Reference

Weighted least-squares gradient of W = [rho, u, p] over face neighbors, with boundary ghost states placed at the mirror image of the cell centroid across the boundary face. More...

#include <gradient.h>

Public Member Functions
KOKKOS_INLINE_FUNCTION bool	one_sided (const uint32_t i_face) const
	Whether vertex-neighbor gradients leave out the ghost of face i_face: the zero-gradient ghost of a characteristic boundary would halve the normal derivative of waves leaving the domain, and the jump this leaves at the boundary cell's inner face reflects them through the low-Mach correction.
KOKKOS_INLINE_FUNCTION void	neighbor (const uint32_t i_cell, const uint32_t i_face, const rtype *W_i, rtype *dx, rtype *W_j) const
	Offset to and state of the neighbor across face i_face.
KOKKOS_INLINE_FUNCTION void	operator() (const uint32_t i_cell) const

Public Attributes
Kokkos::View< uint32_t * >	offsets_faces_of_cell
Kokkos::View< uint32_t * >	faces_of_cell
Kokkos::View< int32_t *[2]>	cells_of_face
Kokkos::View< rtype *[N_DIM]>	cell_coords
Kokkos::View< rtype *[N_DIM]>	face_coords
Kokkos::View< rtype *[N_DIM]>	face_normals
Kokkos::View< rtype *[N_DIM]>	shifts
Kokkos::View< uint8_t * >	face_shift
BoundaryData	boundaries
Kokkos::View< rtype *[N_CONSERVATIVE]>	W
Kokkos::View< rtype *[N_CONSERVATIVE][N_DIM]>	gradients

Detailed Description

Weighted least-squares gradient of W = [rho, u, p] over face neighbors, with boundary ghost states placed at the mirror image of the cell centroid across the boundary face.

Exact for linear fields on any mesh where the neighbor offsets span N_DIM dimensions. Build it with make_gradient.

Member Function Documentation

neighbor()

KOKKOS_INLINE_FUNCTION void LSQGradientFunctor::neighbor ( const uint32_t  i_cell, const uint32_t  i_face, const rtype *  W_i, rtype *  dx, rtype *  W_j  ) const

inline

Offset to and state of the neighbor across face i_face.

one_sided()

KOKKOS_INLINE_FUNCTION bool LSQGradientFunctor::one_sided ( const uint32_t  i_face ) const

inline

Whether vertex-neighbor gradients leave out the ghost of face i_face: the zero-gradient ghost of a characteristic boundary would halve the normal derivative of waves leaving the domain, and the jump this leaves at the boundary cell's inner face reflects them through the low-Mach correction.

operator()()

KOKKOS_INLINE_FUNCTION void LSQGradientFunctor::operator() ( const uint32_t  i_cell ) const

inline

Member Data Documentation

boundaries

BoundaryData LSQGradientFunctor::boundaries

cell_coords

Kokkos::View<rtype *[N_DIM]> LSQGradientFunctor::cell_coords

cells_of_face

Kokkos::View<int32_t *[2]> LSQGradientFunctor::cells_of_face

face_coords

Kokkos::View<rtype *[N_DIM]> LSQGradientFunctor::face_coords

face_normals

Kokkos::View<rtype *[N_DIM]> LSQGradientFunctor::face_normals

face_shift

Kokkos::View<uint8_t *> LSQGradientFunctor::face_shift

faces_of_cell

Kokkos::View<uint32_t *> LSQGradientFunctor::faces_of_cell

gradients

Kokkos::View<rtype *[N_CONSERVATIVE][N_DIM]> LSQGradientFunctor::gradients

offsets_faces_of_cell

Kokkos::View<uint32_t *> LSQGradientFunctor::offsets_faces_of_cell

shifts

Kokkos::View<rtype *[N_DIM]> LSQGradientFunctor::shifts

W

Kokkos::View<rtype *[N_CONSERVATIVE]> LSQGradientFunctor::W

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

• /home/runner/work/mallard/mallard/mallard/src/numerics/gradient.h