#include <worlddc.h>

Inheritance diagram for madness::WorldDCSingleOwnerPmap< keyT >:

Collaboration diagram for madness::WorldDCSingleOwnerPmap< keyT >:

Public Member Functions
	WorldDCSingleOwnerPmap (ProcessID owner)

ProcessID	owner (const keyT &) const override
	Maps key to processor.

ProcessID	single_owner () const override

Public Member Functions inherited from madness::WorldDCPmapInterface< keyT >
virtual	~WorldDCPmapInterface ()

void	deregister_callback (ptrT ptr)
	Deregisters object for receipt of redistribute callbacks.

virtual DistributionType	distribution_type () const
	by default the map is distributed

std::size_t	global_size (World &world) const
	Counts global number of entries in all containers associated with this process map.

std::size_t	local_size () const
	Counts local number of entries in all containers associated with this process map.

virtual void	print () const

void	print_data_sizes (World &world, const std::string msg="") const
	Prints size info to std::cout.

void	redistribute (World &world, const std::shared_ptr< WorldDCPmapInterface< keyT > > &newpmap)
	Invoking this switches all registered objects from this process map to the new one.

void	register_callback (ptrT ptr)
	Registers object for receipt of redistribute callbacks.

Private Attributes
const ProcessID	owner_

Additional Inherited Members
Public Types inherited from madness::WorldDCPmapInterface< keyT >
typedef WorldDCRedistributeInterface< keyT > *	ptrT

Detailed Description

template<typename keyT>
class madness::WorldDCSingleOwnerPmap< keyT >

Places every key on one fixed rank (all ranks agree on the owner).

Moves a container's whole content onto one rank, so a cross-world copy is a single fetch. Distribution type stays Distributed; see single_owner().

Constructor & Destructor Documentation

◆ WorldDCSingleOwnerPmap()

template<typename keyT >

madness::WorldDCSingleOwnerPmap< keyT >::WorldDCSingleOwnerPmap ( ProcessID owner )

inline

Member Function Documentation

◆ owner()

template<typename keyT >

ProcessID madness::WorldDCSingleOwnerPmap< keyT >::owner ( const keyT & key ) const

inlineoverridevirtual

Maps key to processor.

Parameters

[in] key Key for container

Returns: Processor that logically owns the key

Implements madness::WorldDCPmapInterface< keyT >.

References madness::WorldDCSingleOwnerPmap< keyT >::owner_.

◆ single_owner()

template<typename keyT >

ProcessID madness::WorldDCSingleOwnerPmap< keyT >::single_owner ( ) const

inlineoverridevirtual

The one rank every key maps to on every process, or -1. Lets a cross-world copy fetch from one owner instead of polling all ranks. Stronger than WorldDCLocalPmap, whose owner is the calling rank.

Reimplemented from madness::WorldDCPmapInterface< keyT >.

References madness::WorldDCSingleOwnerPmap< keyT >::owner_.