Reducer

#include <reductions.hh>

template<typename T, typename Traits>
struct Reducer

Defined in src/lib/ncarray/reductions.hh:605

A wrapping class for reduction traits.

The Reducer templates on the various reduction traits binding the static functions into an instantiable struct. In some cases, it may be preferable to pass an object to perform the reductions, where passing the static functions, or lambdas wrapping them, may be less ideal, or impossible.

List of all members

Name	Kind	Owner
`identity`	`function`	Declared here
`transform`	`function`	Declared here
`reduce`	`function`	Declared here
`store`	`function`	Declared here
`atomic`	`function`	Declared here
`dual_atomic`	`function`	Declared here
`AccumT`	`typedef`	Declared here
`OutT`	`typedef`	Declared here

Public Methods

Return	Name	Description
`NCA_HDAccumT`	`identity` `const` `inline`
`NCA_HDAccumT`	`transform` `const` `inline`
`NCA_HDAccumT`	`reduce` `const` `inline`
`NCA_HD auto`	`store` `const` `inline`
`NCA_HD void`	`atomic` `inline`
`NCA_HD void`	`dual_atomic` `inline`

identity

const inline

inline NCA_HDAccumT identity() const

Defined in src/lib/ncarray/reductions.hh:609

transform

const inline

inline NCA_HDAccumT transform(ssize_t idx, T val) const

Defined in src/lib/ncarray/reductions.hh:613

reduce

const inline

inline NCA_HDAccumT reduce(AccumT a, AccumT b) const

Defined in src/lib/ncarray/reductions.hh:617

store

const inline

inline NCA_HD auto store(AccumT val, double ddof = 0.0) const

Defined in src/lib/ncarray/reductions.hh:621

atomic

inline

inline NCA_HD void atomic(AccumT * dest, AccumT val)

Defined in src/lib/ncarray/reductions.hh:625

dual_atomic

inline

inline NCA_HD void dual_atomic(AccumT * scratch, AccumT val, OutT * res, double ddof = 0.0)

Defined in src/lib/ncarray/reductions.hh:631

Public Types

Name	Description
`AccumT`
`OutT`

AccumT

using AccumT = typename Traits::template AccumT< T >

Defined in src/lib/ncarray/reductions.hh:606

OutT

using OutT = typename Traits::template OutT< T >

Defined in src/lib/ncarray/reductions.hh:607