Kokkos::Crs< DataType, Arg1Type, Arg2Type, SizeType > Class Template Reference

Compressed row storage array. More...

#include <Kokkos_Crs.hpp>

Public Member Functions
template<class EntriesType , class RowMapType >
KOKKOS_INLINE_FUNCTION	Crs (const RowMapType &row_map_, const EntriesType &entries_)
	Assign to a view of the rhs array. If the old view is the last view then allocated memory is deallocated. More...
KOKKOS_INLINE_FUNCTION size_type	numRows () const
	Return number of rows in the graph. More...

Detailed Description

template<class DataType, class Arg1Type, class Arg2Type = void, typename SizeType = typename ViewTraits<DataType*, Arg1Type, Arg2Type, void>::size_type>
class Kokkos::Crs< DataType, Arg1Type, Arg2Type, SizeType >

Compressed row storage array.

Template Parameters

DataType	The type of stored entries. If a Crs is used as the graph of a sparse matrix, then this is usually an integer type, the type of the column indices in the sparse matrix.
Arg1Type	The second template parameter, corresponding either to the Device type (if there are no more template parameters) or to the Layout type (if there is at least one more template parameter).
Arg2Type	The third template parameter, which if provided corresponds to the Device type.
SizeType	The type of row offsets. Usually the default parameter suffices. However, setting a nondefault value is necessary in some cases, for example, if you want to have a sparse matrices with dimensions (and therefore column indices) that fit in int, but want to store more than INT_MAX entries in the sparse matrix.

A row has a range of entries:

• row_map[i0] <= entry < row_map[i0+1]
• 0 <= i1 < row_map[i0+1] - row_map[i0]
• entries( entry , i2 , i3 , ... );
• entries( row_map[i0] + i1 , i2 , i3 , ... );

Definition at line 83 of file Kokkos_Crs.hpp.

Constructor & Destructor Documentation

template<class DataType , class Arg1Type , class Arg2Type = void, typename SizeType = typename ViewTraits<DataType*, Arg1Type, Arg2Type, void>::size_type>

template<class EntriesType , class RowMapType >

KOKKOS_INLINE_FUNCTION Kokkos::Crs< DataType, Arg1Type, Arg2Type, SizeType >::Crs ( const RowMapType &  row_map_, const EntriesType &  entries_  )

inline

Assign to a view of the rhs array. If the old view is the last view then allocated memory is deallocated.

Definition at line 120 of file Kokkos_Crs.hpp.

Member Function Documentation

template<class DataType , class Arg1Type , class Arg2Type = void, typename SizeType = typename ViewTraits<DataType*, Arg1Type, Arg2Type, void>::size_type>

KOKKOS_INLINE_FUNCTION size_type Kokkos::Crs< DataType, Arg1Type, Arg2Type, SizeType >::numRows ( ) const

inline

Return number of rows in the graph.

Definition at line 127 of file Kokkos_Crs.hpp.

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

• Kokkos_Crs.hpp