Cabana::Impl::Index< VectorLength > Class Template Reference

Class for converting between 1d and 2d aosoa indices. More...

#include <Cabana_Index.hpp>

Static Public Member Functions
static KOKKOS_FORCEINLINE_FUNCTION constexpr std::size_t	s (const std::size_t i)
	Given a tuple index get the AoSoA struct index.
static KOKKOS_FORCEINLINE_FUNCTION constexpr std::size_t	a (const std::size_t i)
	Given a tuple index get the AoSoA array index.
static KOKKOS_FORCEINLINE_FUNCTION constexpr std::size_t	i (const std::size_t s, const std::size_t a)
	Given a struct index and array index in an AoSoA get the tuple index.

Static Public Attributes
static constexpr int	vector_length = VectorLength
	Inner array size.
static constexpr int	vector_length_offset = ( vector_length - 1 )
	Array size offset.
static constexpr int	vector_length_binary_bits
	Number of binary bits needed to hold the array size.

Detailed Description

template<int VectorLength>
class Cabana::Impl::Index< VectorLength >

Class for converting between 1d and 2d aosoa indices.

Template Parameters

VectorLength

The inner array size of the AoSoA.

Member Function Documentation

a()

template<int VectorLength>

static KOKKOS_FORCEINLINE_FUNCTION constexpr std::size_t Cabana::Impl::Index< VectorLength >::a ( const std::size_t i )

inlinestaticconstexpr

Given a tuple index get the AoSoA array index.

Parameters

i	The tuple index.

Returns

The index of the array index in the struct in which the tuple is located.

i()

template<int VectorLength>

static KOKKOS_FORCEINLINE_FUNCTION constexpr std::size_t Cabana::Impl::Index< VectorLength >::i ( const std::size_t s, const std::size_t a )

inlinestaticconstexpr

Given a struct index and array index in an AoSoA get the tuple index.

Parameters

s	The struct index.
a	The array index.

Returns

The tuple index.

s()

template<int VectorLength>

static KOKKOS_FORCEINLINE_FUNCTION constexpr std::size_t Cabana::Impl::Index< VectorLength >::s ( const std::size_t i )

inlinestaticconstexpr

Given a tuple index get the AoSoA struct index.

Parameters

i	The tuple index.

Returns

The index of the struct in which the tuple is located.

Member Data Documentation

vector_length_binary_bits

template<int VectorLength>

int Cabana::Impl::Index< VectorLength >::vector_length_binary_bits

staticconstexpr

Initial value:

=
        Impl::LogBase2<vector_length>::value

Number of binary bits needed to hold the array size.

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

• core/src/impl/Cabana_Index.hpp