RAII handle that creates an MPI_Op from a default-constructible C++ functor. More...

#include <reduce_ops.hpp>

Public Member Functions
	ScopedFunctorOp (Op op)
	Creates an `MPI_Op` for the given functor.

	ScopedFunctorOp (ScopedFunctorOp const &)=delete

ScopedFunctorOp &	operator= (ScopedFunctorOp const &)=delete

	ScopedFunctorOp (ScopedFunctorOp &&)=delete

ScopedFunctorOp &	operator= (ScopedFunctorOp &&)=delete

MPI_Op	get () const noexcept

T	operator() (T const &lhs, T const &rhs) const
	Applies the functor to two values.

Detailed Description

template<bool is_commutative, typename T, typename Op>
class kamping::types::ScopedFunctorOp< is_commutative, T, Op >

RAII handle that creates an MPI_Op from a default-constructible C++ functor.

Calls MPI_Op_create on construction and MPI_Op_free on destruction. The functor is invoked via MPI_Op_create's callback and must be default-constructible (i.e. stateless or state carried via static variables). For capturing lambdas use ScopedCallbackOp.

Template Parameters

is_commutative	Whether the operation is commutative.
T	Element type the functor operates on.
Op	Functor type. Must be default-constructible and callable as `T(T const&, T const&)`.

Member Function Documentation

◆ get()

template<bool is_commutative, typename T , typename Op >

MPI_Op kamping::types::ScopedFunctorOp< is_commutative, T, Op >::get ( ) const

inlinenoexcept

Returns: The underlying MPI_Op. Do not free manually — the destructor does it.

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

kamping-types/include/kamping/types/reduce_ops.hpp

Public Member Functions

Detailed Description

Member Function Documentation

◆ get()