Real Space

Types and operations for real space coordinates and geometry in AMReX. More...

Classes
struct	amrex::XDim3
	A simple struct holding 3 Real values for a 3D coordinate. More...
class	amrex::CoordSys
	Coordinate system; provides mapping between physical space and index space. More...
struct	amrex::GeometryData
	GPU-safe snapshot of Geometry data suitable for capture in GPU kernels. More...
class	amrex::Geometry
	Rectangular problem domain geometry. More...
class	amrex::RealBox
	A Box with real dimensions. More...
class	amrex::RealVectND< dim >
	A Real vector in dim-dimensional space. More...

Functions
std::ostream &	amrex::operator<< (std::ostream &, const Geometry &)
	Write a Geometry to an output stream in ASCII format.
std::istream &	amrex::operator>> (std::istream &is, Geometry &g)
	Read a Geometry from an input stream in ASCII format.
template<std::floating_point T>
__host__ __device__ T	amrex::node_coord (T problo, int i, T dx) noexcept
	Coordinate of node i: problo + i*dx.
const Geometry &	amrex::DefaultGeometry ()
	Return the default Geometry held by the top-level AMReX instance.

Detailed Description

Types and operations for real space coordinates and geometry in AMReX.

These abstractions define physical coordinates, bounding boxes and geometric information associated with the computational domain.

Central types include:

• amrex::RealVect
• amrex::RealBox
• amrex::Geometry

Function Documentation

DefaultGeometry()

const Geometry & amrex::DefaultGeometry ( )

inline

Return the default Geometry held by the top-level AMReX instance.

node_coord()

template<std::floating_point T>

__host__ __device__ T amrex::node_coord ( T problo, int i, T dx )

inlinenoexcept

Coordinate of node i: problo + i*dx.

The explicit fma makes the result the same in every kernel, so a point placed at a node by one code path equals the node recomputed by another.

operator<<()

std::ostream & amrex::operator<<	(	std::ostream &	os,
		const Geometry &	g )

Write a Geometry to an output stream in ASCII format.

operator>>()

std::istream & amrex::operator>>	(	std::istream &	is,
		Geometry &	g )

Read a Geometry from an input stream in ASCII format.