ippl::OrthogonalRecursiveBisection< Field, Tp > Class Template Reference

Collaboration diagram for ippl::OrthogonalRecursiveBisection< Field, Tp >:

Public Member Functions
void	initialize (FieldLayout< Dim > &fl, mesh_type &mesh, const Field &rho)
template<typename Attrib >
bool	binaryRepartition (const Attrib &R, FieldLayout< Dim > &fl, const bool &isFirstRepartition)
int	findCutAxis (NDIndex< Dim > &dom)
void	perpendicularReduction (std::vector< Tf > &rankWeights, unsigned int cutAxis, NDIndex< Dim > &dom)
int	findMedian (std::vector< Tf > &w)
void	cutDomain (std::vector< NDIndex< Dim > > &domains, std::vector< int > &procs, int it, int cutAxis, int median)
template<typename Attrib >
void	scatterR (const Attrib &r)

Public Attributes
Field	bf_m

Member Function Documentation

binaryRepartition()

template<class Field , class Tp >

template<typename Attrib >

bool ippl::OrthogonalRecursiveBisection< Field, Tp >::binaryRepartition	(	const Attrib &	R,
		FieldLayout< Dim > &	fl,
		const bool &	isFirstRepartition
	)

Performs scatter operation of particle positions in field (weights) and repartitions FieldLayout's global domain

Template Parameters

Attrib

the particle attribute type (memory space must be accessible to field memory)

Parameters

R	Weights to scatter
fl	FieldLayout
isFirstRepartition	boolean which tells whether to scatter or not

cutDomain()

template<class Field , class Tp >

void ippl::OrthogonalRecursiveBisection< Field, Tp >::cutDomain	(	std::vector< NDIndex< Dim > > &	domains,
		std::vector< int > &	procs,
		int	it,
		int	cutAxis,
		int	median
	)

Splits the domain given by the iterator along the cut axis at the median, the corresponding index will be cut between median and median+1

Parameters

domains	Set of subdomains which will be cut
procs	Set of ranks count associated to each subdomain
it	Iterator
cutAxis	Index of cut axis
median	Median

findCutAxis()

template<class Field , class Tp >

int ippl::OrthogonalRecursiveBisection< Field, Tp >::findCutAxis

(

NDIndex< Dim > &

dom

)

Find cutting axis as the longest axis of the field layout.

Parameters

dom	Domain to reduce

findMedian()

template<class Field , class Tp >

int ippl::OrthogonalRecursiveBisection< Field, Tp >::findMedian

(

std::vector< Tf > &

w

)

Find median of array

Parameters

w	Array of real numbers

initialize()

template<class Field , class Tp >

void ippl::OrthogonalRecursiveBisection< Field, Tp >::initialize	(	FieldLayout< Dim > &	fl,
		mesh_type &	mesh,
		const Field &	rho
	)

Initialize member field with mesh and field layout

Parameters

fl
mesh	Mesh
rho	Density field

perpendicularReduction()

template<class Field , class Tp >

void ippl::OrthogonalRecursiveBisection< Field, Tp >::perpendicularReduction	(	std::vector< Tf > &	rankWeights,
		unsigned int	cutAxis,
		NDIndex< Dim > &	dom
	)

Performs reduction on local field in all dimension except that determined by cutAxis, stores result in res

Parameters

rankWeights	Array giving the result of reduction
cutAxis	Index of cut axis
dom	Domain to reduce

scatterR()

template<class Field , class Tp >

template<typename Attrib >

void ippl::OrthogonalRecursiveBisection< Field, Tp >::scatterR

(

const Attrib &

r

)

Scattering of particle positions in field using a CIC method

Template Parameters

Attrib

the particle attribute type (memory space must be accessible to field memory)

Parameters

r

Weights

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The documentation for this class was generated from the following files:

• ippl-src/src/Decomposition/OrthogonalRecursiveBisection.h
• ippl-src/src/Decomposition/OrthogonalRecursiveBisection.hpp