rhs(i,j) = lap(i,j) (= -Lap phi^n, already negated by the caller) - g * div F, second-order centered divergence of a flux F at the center (fx, fy, ghosts filled). More...

#include <schur_condensation.hpp>

Collaboration diagram for pops::detail::SchurRhsAssembleKernel:

Public Member Functions
POPS_HD void	operator() (int i, int j) const

Public Attributes
ConstArray4	neg_lap
	-Lap phi^n (already negated)

ConstArray4	fx

ConstArray4	fy
	flux F at the center (ghosts filled)

Array4	rhs
	output: condensed right-hand side

Real	g
	theta dt alpha

Real	half_idx

Real	half_idy
	1/(2 dx), 1/(2 dy)

Detailed Description

rhs(i,j) = lap(i,j) (= -Lap phi^n, already negated by the caller) - g * div F, second-order centered divergence of a flux F at the center (fx, fy, ghosts filled).

g = theta dt alpha. Device-clean NAMED functor. The same centered divergence stencil is exposed standalone as pops::apply_divergence (numerics/elliptic/poisson/poisson_operator.hpp, used by the compiled time-program ctx.divergence); it is fused here with -Lap phi^n and the -g factor and kept inline so this native source path stays bit-identical.

Member Function Documentation

◆ operator()()

POPS_HD void pops::detail::SchurRhsAssembleKernel::operator()	(	int	i,
		int	j
	)		const

inline

Member Data Documentation

◆ fx

ConstArray4 pops::detail::SchurRhsAssembleKernel::fx

◆ fy

ConstArray4 pops::detail::SchurRhsAssembleKernel::fy

flux F at the center (ghosts filled)

◆ g

Real pops::detail::SchurRhsAssembleKernel::g

theta dt alpha

◆ half_idx

Real pops::detail::SchurRhsAssembleKernel::half_idx

◆ half_idy

Real pops::detail::SchurRhsAssembleKernel::half_idy

1/(2 dx), 1/(2 dy)

◆ neg_lap

ConstArray4 pops::detail::SchurRhsAssembleKernel::neg_lap

-Lap phi^n (already negated)

◆ rhs

Array4 pops::detail::SchurRhsAssembleKernel::rhs

output: condensed right-hand side

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

include/pops/coupling/schur/core/schur_condensation.hpp

SchurRhsAssembleKernel Struct Reference¶

Public Member Functions

Public Attributes