Pomerol::TermList< TermType > Class Template Reference

A list of terms contributing to the Lehmann representation of a correlation function. More...

#include <TermList.hpp>

Public Member Functions
	TermList (Hash const &hasher, KeyEqual const &key_equal, IsNegligible const &is_negligible)
void	add_term (TermType const &term)
std::size_t	size () const
	Number of terms in the container.
void	clear ()
	Remove all terms from the container.
std::unordered_set< TermType, Hash, KeyEqual > const &	as_set () const
	Access the underlying set of terms.
IsNegligible const &	get_is_negligible () const
	Access the 'is negligible' predicate.
template<typename... Args>
ComplexType	operator() (Args &&... args) const
void	broadcast (MPI_Comm const &comm, int root)
bool	check_terms () const
	Check if all terms in the container are not negligible.

Detailed Description

template<typename TermType>
class Pomerol::TermList< TermType >

A list of terms contributing to the Lehmann representation of a correlation function.

A set-like container storing a list of terms contributing to the Lehmann representation of a correlation function.

The terms must support hashing using a function TermType::Hash and a similarity check via TermType::KeyEqual. Similar terms are automatically collected and reduced to one term using operator+=(). A term T is considered negligible and is automatically removed from the container if TermType::IsNegligible(T, current_number_of_terms + 1) evaluates to true.

Template Parameters

TermType

Type of a single term.

Definition at line 41 of file TermList.hpp.

Constructor & Destructor Documentation

TermList()

template<typename TermType >

Pomerol::TermList< TermType >::TermList ( Hash const &  hasher, KeyEqual const &  key_equal, IsNegligible const &  is_negligible  )

inline

Constructor.

Parameters

[in]	hasher	Hasher for the underlying std::unordered_set object.
[in]	key_equal	KeyEqual predicate for the underlying std::unordered_set object.
[in]	is_negligible	Predicate that determines whether a term can be neglected.

Definition at line 60 of file TermList.hpp.

Member Function Documentation

add_term()

template<typename TermType >

void Pomerol::TermList< TermType >::add_term ( TermType const &  term )

inline

Add a new term to the container

Parameters

[in]

term

Term to be added

Definition at line 65 of file TermList.hpp.

as_set()

template<typename TermType >

std::unordered_set< TermType, Hash, KeyEqual > const & Pomerol::TermList< TermType >::as_set ( ) const

inline

Access the underlying set of terms.

Definition at line 85 of file TermList.hpp.

broadcast()

template<typename TermType >

void Pomerol::TermList< TermType >::broadcast ( MPI_Comm const &  comm, int  root  )

inline

Broadcast terms from a root MPI rank to all other ranks in a communicator.

Parameters

[in]	comm	The MPI communicator for the broadcast operation.
[in]	root	Rank of the root MPI process.

Definition at line 106 of file TermList.hpp.

check_terms()

template<typename TermType >

bool Pomerol::TermList< TermType >::check_terms ( ) const

inline

Check if all terms in the container are not negligible.

Definition at line 130 of file TermList.hpp.

clear()

template<typename TermType >

void Pomerol::TermList< TermType >::clear ( )

inline

Remove all terms from the container.

Definition at line 82 of file TermList.hpp.

get_is_negligible()

template<typename TermType >

IsNegligible const & Pomerol::TermList< TermType >::get_is_negligible ( ) const

inline

Access the 'is negligible' predicate.

Definition at line 88 of file TermList.hpp.

operator()()

template<typename TermType >

template<typename... Args>

ComplexType Pomerol::TermList< TermType >::operator() ( Args &&...  args ) const

inline

Forward arguments to TermType:operator() of each term in the container and return a sum of their return values.

Template Parameters

Args	Types of the arguments.

Parameters

[in]

args

Arguments to be passes to the terms.

Definition at line 94 of file TermList.hpp.

size()

template<typename TermType >

std::size_t Pomerol::TermList< TermType >::size ( ) const

inline

Number of terms in the container.

Definition at line 79 of file TermList.hpp.

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

• pomerol/TermList.hpp