CoarsenMR Namespace Reference

Functions
AMREX_GPU_DEVICE AMREX_FORCE_INLINE Real	Interp (Array4< Real const > const &arr_src, GpuArray< int, 3 > const &sf, GpuArray< int, 3 > const &sc, GpuArray< int, 3 > const &cr, const int i, const int j, const int k, const int comp)
	Interpolates the floating point data contained in the source Array4 arr_src, extracted from a fine MultiFab, with weights defined in such a way that the total charge is preserved. More...
void	Loop (MultiFab &mf_dst, const MultiFab &mf_src, const int ncomp, const IntVect ngrow, const IntVect crse_ratio)
	Loops over the boxes of the coarsened MultiFab mf_dst and fills them by interpolating the data contained in the fine MultiFab mf_src. More...
void	Coarsen (MultiFab &mf_dst, const MultiFab &mf_src, const IntVect crse_ratio)
	Stores in the coarsened MultiFab mf_dst the values obtained by interpolating the data contained in the fine MultiFab mf_src. More...

Function Documentation

Coarsen()

void CoarsenMR::Coarsen	(	MultiFab &	mf_dst,
		const MultiFab &	mf_src,
		const IntVect	crse_ratio
	)

Stores in the coarsened MultiFab mf_dst the values obtained by interpolating the data contained in the fine MultiFab mf_src.

Parameters

[in,out]	mf_dst	coarsened MultiFab containing the floating point data to be filled by interpolating the fine MultiFab mf_src
[in]	mf_src	fine MultiFab containing the floating point data to be interpolated
[in]	crse_ratio	coarsening ratio between the fine MultiFab mf_src and the coarsened MultiFab mf_dst along each spatial direction

Interp()

AMREX_GPU_DEVICE AMREX_FORCE_INLINE Real CoarsenMR::Interp	(	Array4< Real const > const &	arr_src,
		GpuArray< int, 3 > const &	sf,
		GpuArray< int, 3 > const &	sc,
		GpuArray< int, 3 > const &	cr,
		const int	i,
		const int	j,
		const int	k,
		const int	comp
	)

Interpolates the floating point data contained in the source Array4 arr_src, extracted from a fine MultiFab, with weights defined in such a way that the total charge is preserved.

Parameters

[in]	arr_src	floating point data to be interpolated
[in]	sf	staggering of the source fine MultiFab
[in]	sc	staggering of the destination coarsened MultiFab
[in]	cr	coarsening ratio along each spatial direction
[in]	i	index along x of the coarsened Array4 to be filled
[in]	j	index along y of the coarsened Array4 to be filled
[in]	k	index along z of the coarsened Array4 to be filled
[in]	comp	index along the fourth component of the Array4 arr_src containing the data to be interpolated

Returns

interpolated field at cell (i,j,k) of a coarsened Array4

Loop()

void CoarsenMR::Loop	(	MultiFab &	mf_dst,
		const MultiFab &	mf_src,
		const int	ncomp,
		const IntVect	ngrow,
		const IntVect	crse_ratio
	)

Loops over the boxes of the coarsened MultiFab mf_dst and fills them by interpolating the data contained in the fine MultiFab mf_src.

Parameters

[in,out]	mf_dst	coarsened MultiFab containing the floating point data to be filled by interpolating the source fine MultiFab
[in]	mf_src	fine MultiFab containing the floating point data to be interpolated
[in]	ncomp	number of components to loop over for the coarsened Array4 extracted from the coarsened MultiFab mf_dst
[in]	ngrow	number of guard cells to fill along each spatial direction
[in]	crse_ratio	coarsening ratio between the fine MultiFab mf_src and the coarsened MultiFab mf_dst along each spatial direction