ParallelReduceTools.h File Reference

#include <utility>
#include <variant>

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Classes
struct	ParticleBinning::ArrayReduction< SizeType, IndexType, N >
	A templated structure for performing array-based reductions in parallel computations. More...
struct	ParticleBinning::ReductionVariantHelper< SizeType, IndexType, std::integer_sequence< IndexType, Sizes... > >
	Specialized template that expands std::integer_sequence to create a variant of ArrayReduction types. More...
struct	ParticleBinning::HostArrayReduction< SizeType, IndexType >
	Host-only array reduction structure for dynamic array sizes in Kokkos::parallel_reduce. More...
struct	Kokkos::reduction_identity< ParticleBinning::ArrayReduction< SizeType, IndexType, N > >
	Kokkos reduction identity specialization for custom reduction types. More...
struct	Kokkos::reduction_identity< ParticleBinning::HostArrayReduction< SizeType, IndexType > >
	Kokkos reduction identity specialization for host-only HostArrayReduction types. More...

Namespaces
namespace	ParticleBinning
namespace	Kokkos

Typedefs
template<typename SizeType , typename IndexType >
using	ParticleBinning::ReductionVariant = typename ReductionVariantHelper< SizeType, IndexType, std::make_integer_sequence< IndexType, maxArrSize< IndexType > > >::type
	Type alias for a std::variant containing all possible ArrayReduction types up to maxArrSize.

Enumerations
enum class	ParticleBinning::HistoReductionMode { ParticleBinning::Standard , ParticleBinning::ParallelReduce , ParticleBinning::TeamBased , ParticleBinning::HostOnly }

Functions
template<typename SizeType , typename IndexType , IndexType N>
ReductionVariant< SizeType, IndexType >	ParticleBinning::createReductionObjectHelper (IndexType binCount)
	Recursive helper function to create ArrayReduction objects with compile-time size matching.
template<typename SizeType , typename IndexType >
ReductionVariant< SizeType, IndexType >	ParticleBinning::createReductionObject (IndexType binCount)
	Factory function to create ArrayReduction objects with runtime-specified size.
template<typename T , unsigned Dim>
T	ParticleBinning::vnorm (const VField_t< T, Dim > &field, int p=2)
	Computes the (p)-norm of a vector field (for debugging purpose).

Variables
template<typename IndexType >
constexpr IndexType	ParticleBinning::maxArrSize = 5
	Maximum allowed array size for compile-time array reduction types.

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Class Documentation

ParticleBinning::ReductionVariantHelper< SizeType, IndexType, std::integer_sequence< IndexType, Sizes... > >

struct ParticleBinning::ReductionVariantHelper< SizeType, IndexType, std::integer_sequence< IndexType, Sizes... > >

template<typename SizeType, typename IndexType, IndexType... Sizes>
struct ParticleBinning::ReductionVariantHelper< SizeType, IndexType, std::integer_sequence< IndexType, Sizes... > >

Specialized template that expands std::integer_sequence to create a variant of ArrayReduction types.

This specialization takes a std::integer_sequence and expands it into a std::variant containing ArrayReduction types with consecutive sizes. Each size in the sequence is incremented by 1 to create ArrayReduction<SizeType, IndexType, Sizes + 1>.

Template Parameters

SizeType	The type used for array elements in the reduction operations.
IndexType	The type used for array indexing.
Sizes...	Parameter pack of integer values from the std::integer_sequence.

Definition at line 121 of file ParallelReduceTools.h.

Collaboration diagram for ParticleBinning::ReductionVariantHelper< SizeType, IndexType, std::integer_sequence< IndexType, Sizes... > >:

Class Members
typedef variant< ArrayReduction< SizeType, IndexType, Sizes+1 >... >	type