The mpi version of RealCartesianGrid2d. More...

Inheritance diagram for dg::RealCartesianMPIGrid2d< real_type >:

Public Member Functions
	RealCartesianMPIGrid2d (real_type x0, real_type x1, real_type y0, real_type y1, unsigned n, unsigned Nx, unsigned Ny, MPI_Comm comm)
	Equal polynomial coefficients. More...

	RealCartesianMPIGrid2d (real_type x0, real_type x1, real_type y0, real_type y1, unsigned n, unsigned Nx, unsigned Ny, bc bcx, bc bcy, MPI_Comm comm)
	Equal polynomial coefficients. More...

	RealCartesianMPIGrid2d (RealGrid1d< real_type > gx, RealGrid1d< real_type > gy, MPI_Comm comm)
	Construct a 2d grid as the product of two 1d grids. More...

	RealCartesianMPIGrid2d (const dg::RealMPIGrid2d< real_type > &g)
	Implicit type conversion from MPIGrid2d. More...

virtual RealCartesianMPIGrid2d *	clone () const override final
	Geometries are cloneable. More...

virtual RealCartesianGrid2d< real_type > *	global_geometry () const override final
	Construct the global non-MPI geometry. More...

Public Member Functions inherited from dg::aRealMPIGeometry2d< real_type >
SparseTensor< MPI_Vector< thrust::host_vector< real_type > > >	jacobian () const
	The Jacobian of the coordinate transformation from physical to computational space. More...

SparseTensor< MPI_Vector< thrust::host_vector< real_type > > >	metric () const
	The (inverse) metric tensor of the coordinate system. More...

std::vector< MPI_Vector< thrust::host_vector< real_type > > >	map () const
	The coordinate map from computational to physical space. More...

virtual aRealMPIGeometry2d *	clone () const =0
	Geometries are cloneable. More...

virtual aRealGeometry2d< real_type > *	global_geometry () const =0
	Construct the global non-MPI geometry. More...

virtual	~aRealMPIGeometry2d ()=default
	allow deletion through base class pointer More...

Public Member Functions inherited from dg::aRealMPITopology2d< real_type >
real_type	x0 () const
	Return global x0. More...

real_type	x1 () const
	Return global x1. More...

real_type	y0 () const
	Return global y0. More...

real_type	y1 () const
	Return global y1. More...

real_type	lx () const
	Return global lx. More...

real_type	ly () const
	Return global ly. More...

real_type	hx () const
	Return global hx. More...

real_type	hy () const
	Return global hy. More...

unsigned	n () const
	Return n. More...

unsigned	nx () const
	number of polynomial coefficients in x More...

unsigned	ny () const
	number of polynomial coefficients in y More...

unsigned	Nx () const
	Return the global number of cells. More...

unsigned	Ny () const
	Return the global number of cells. More...

bc	bcx () const
	global x boundary More...

bc	bcy () const
	global y boundary More...

MPI_Comm	communicator () const
	Return mpi cartesian communicator that is used in this grid. More...

const DLT< real_type > &	dltx () const
	discrete legendre transformation in x More...

const DLT< real_type > &	dlty () const
	discrete legendre transformation in y More...

unsigned	size () const
	The total global number of points. More...

unsigned	local_size () const
	The total local number of points. More...

void	display (std::ostream &os=std::cout) const
	Display global and local grid. More...

int	pidOf (real_type x, real_type y) const
	Returns the pid of the process that holds the local grid surrounding the given point. More...

void	multiplyCellNumbers (real_type fx, real_type fy)
	Multiply the number of cells with a given factor. More...

void	set (unsigned new_n, unsigned new_Nx, unsigned new_Ny)
	Set the number of polynomials and cells. More...

void	set (unsigned new_nx, unsigned new_Nx, unsigned new_ny, unsigned new_Ny)
	Set the number of polynomials and cells. More...

bool	local2globalIdx (int localIdx, int PID, int &globalIdx) const
	Map a local index plus the PID to a global vector index. More...

bool	global2localIdx (int globalIdx, int &localIdx, int &PID) const
	Map a global vector index to a local vector Index and the corresponding PID. More...

const RealGrid2d< real_type > &	local () const
	Return a non-MPI grid local for the calling process. More...

const RealGrid2d< real_type > &	global () const
	Return the global non-MPI grid. More...

Additional Inherited Members
Public Types inherited from dg::aRealMPITopology2d< real_type >
using	value_type = real_type

using	host_vector = MPI_Vector< thrust::host_vector< real_type > >
	The host vector type used by host functions like evaluate. More...

using	host_grid = RealMPIGrid2d< real_type >

Protected Member Functions inherited from dg::aRealMPIGeometry2d< real_type >
	aRealMPIGeometry2d (const aRealMPIGeometry2d &src)=default

aRealMPIGeometry2d &	operator= (const aRealMPIGeometry2d &src)=default

Protected Member Functions inherited from dg::aRealMPITopology2d< real_type >
	~aRealMPITopology2d ()=default
	disallow deletion through base class pointer More...

	aRealMPITopology2d (RealGrid1d< real_type > gx, RealGrid1d< real_type > gy, MPI_Comm comm)
	Construct a 2d grid as the product of two 1d grids. More...

	aRealMPITopology2d (const aRealMPITopology2d &src)=default

aRealMPITopology2d &	operator= (const aRealMPITopology2d &src)=default

virtual void	do_set (unsigned new_nx, unsigned new_Nx, unsigned new_ny, unsigned new_Ny)=0
	This function has an implementation. More...

Detailed Description

template<class real_type>
struct dg::RealCartesianMPIGrid2d< real_type >

The mpi version of RealCartesianGrid2d.

Constructor & Destructor Documentation

◆ RealCartesianMPIGrid2d() [1/4]

template<class real_type >

dg::RealCartesianMPIGrid2d< real_type >::RealCartesianMPIGrid2d	(	real_type	x0,
		real_type	x1,
		real_type	y0,
		real_type	y1,
		unsigned	n,
		unsigned	Nx,
		unsigned	Ny,
		MPI_Comm	comm
	)

inline

Equal polynomial coefficients.

Parameters

x0	left boundary in x
x1	right boundary in x
y0	lower boundary in y
y1	upper boundary in y
n	# of polynomial coefficients for both x and y dimension (1<=n<=20)
Nx	# of points in x
Ny	# of points in y
comm	a two-dimensional Cartesian communicator

Note: the paramateres given in the constructor are global parameters

◆ RealCartesianMPIGrid2d() [2/4]

template<class real_type >

dg::RealCartesianMPIGrid2d< real_type >::RealCartesianMPIGrid2d	(	real_type	x0,
		real_type	x1,
		real_type	y0,
		real_type	y1,
		unsigned	n,
		unsigned	Nx,
		unsigned	Ny,
		bc	bcx,
		bc	bcy,
		MPI_Comm	comm
	)

inline

Equal polynomial coefficients.

Parameters

x0	left boundary in x
x1	right boundary in x
y0	lower boundary in y
y1	upper boundary in y
n	# of polynomial coefficients for both x and y dimension (1<=n<=20)
Nx	# of points in x
Ny	# of points in y
bcx	boundary condition in x
bcy	boundary condition in y
comm	a two-dimensional Cartesian communicator