Tpetra::Details::Impl::DetermineLocalTriangularStructure< LocalGraphType, LocalMapType > Class Template Reference

Implementation of Tpetra::Details::determineLocalTriangularStructure (which see below). More...

#include <Tpetra_Details_determineLocalTriangularStructure.hpp>

Public Member Functions
	DetermineLocalTriangularStructure (const LocalGraphType &G, const LocalMapType &rowMap, const LocalMapType &colMap, const bool ignoreMapsForTriangularStructure)
	Constructor. More...
KOKKOS_INLINE_FUNCTION void	init (result_type &dst) const
	Set the initial value of the reduction result. More...
KOKKOS_INLINE_FUNCTION void	operator() (const typename LocalMapType::local_ordinal_type lclRow, result_type &result) const
	Reduction operator: result is (diagonal count, error count). More...

Detailed Description

template<class LocalGraphType, class LocalMapType>
class Tpetra::Details::Impl::DetermineLocalTriangularStructure< LocalGraphType, LocalMapType >

Implementation of Tpetra::Details::determineLocalTriangularStructure (which see below).

Warning

This is an implementation detail of an implementation detail. It may change or disappear at any time.

Kokkos::parallel_reduce functor for counting the local number of diagonal entries in a sparse graph, and determining whether the graph is lower or upper triangular (or neither).

Template Parameters

LocalGraphType	Kokkos::StaticCrsGraph specialization
LocalMapType	Result of Tpetra::Map::getLocalGraph()

Definition at line 56 of file Tpetra_Details_determineLocalTriangularStructure.hpp.

Constructor & Destructor Documentation

template<class LocalGraphType , class LocalMapType >

Tpetra::Details::Impl::DetermineLocalTriangularStructure< LocalGraphType, LocalMapType >::DetermineLocalTriangularStructure ( const LocalGraphType &  G, const LocalMapType &  rowMap, const LocalMapType &  colMap, const bool  ignoreMapsForTriangularStructure  )

inline

Constructor.

Parameters

G	[in] The local sparse graph
rowMap	[in] The graph's local row Map
colMap	[in] The graph's local column Map
ignoreMapsForTriangularStructure	[in] If true, ignore the Maps when determining whether the graph is structurally lower or upper triangular (or neither). See GitHub Issue #2658. Regardless, use the Maps to count diagonal entries.

Definition at line 72 of file Tpetra_Details_determineLocalTriangularStructure.hpp.

Member Function Documentation

template<class LocalGraphType , class LocalMapType >

KOKKOS_INLINE_FUNCTION void Tpetra::Details::Impl::DetermineLocalTriangularStructure< LocalGraphType, LocalMapType >::init ( result_type &  dst ) const

inline

Set the initial value of the reduction result.

Definition at line 83 of file Tpetra_Details_determineLocalTriangularStructure.hpp.

template<class LocalGraphType , class LocalMapType >

KOKKOS_INLINE_FUNCTION void Tpetra::Details::Impl::DetermineLocalTriangularStructure< LocalGraphType, LocalMapType >::operator() ( const typename LocalMapType::local_ordinal_type  lclRow, result_type &  result  ) const

inline

Reduction operator: result is (diagonal count, error count).

Definition at line 104 of file Tpetra_Details_determineLocalTriangularStructure.hpp.

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

• Tpetra_Details_determineLocalTriangularStructure.hpp