gko::matrix::Hybrid< ValueType, IndexType >::strategy_type Class Reference

strategy_type is to decide how to set the hybrid config. More...

#include <ginkgo/core/matrix/hybrid.hpp>

Inheritance diagram for gko::matrix::Hybrid< ValueType, IndexType >::strategy_type:

Public Member Functions
	strategy_type ()
	Creates a strategy_type.
void	compute_hybrid_config (const array< size_type > &row_nnz, size_type *ell_num_stored_elements_per_row, size_type *coo_nnz)
	Computes the config of the Hybrid matrix (ell_num_stored_elements_per_row and coo_nnz). More...
size_type	get_ell_num_stored_elements_per_row () const noexcept
	Returns the number of stored elements per row of the ell part. More...
size_type	get_coo_nnz () const noexcept
	Returns the number of nonzeros of the coo part. More...
virtual size_type	compute_ell_num_stored_elements_per_row (array< size_type > *row_nnz) const =0
	Computes the number of stored elements per row of the ell part. More...

Detailed Description

template<typename ValueType = default_precision, typename IndexType = int32>
class gko::matrix::Hybrid< ValueType, IndexType >::strategy_type

strategy_type is to decide how to set the hybrid config.

It computes the number of stored elements per row of the ell part and then set the number of residual nonzeros as the number of nonzeros of the coo part.

The practical strategy method should inherit strategy_type and implement its compute_ell_num_stored_elements_per_row function.

Member Function Documentation

compute_ell_num_stored_elements_per_row()

template<typename ValueType = default_precision, typename IndexType = int32>

virtual size_type gko::matrix::Hybrid< ValueType, IndexType >::strategy_type::compute_ell_num_stored_elements_per_row ( array< size_type > *  row_nnz ) const

pure virtual

Computes the number of stored elements per row of the ell part.

Parameters

row_nnz

the number of nonzeros of each row

Returns

the number of stored elements per row of the ell part

Implemented in gko::matrix::Hybrid< ValueType, IndexType >::automatic, gko::matrix::Hybrid< ValueType, IndexType >::minimal_storage_limit, gko::matrix::Hybrid< ValueType, IndexType >::imbalance_bounded_limit, gko::matrix::Hybrid< ValueType, IndexType >::imbalance_limit, and gko::matrix::Hybrid< ValueType, IndexType >::column_limit.

Referenced by gko::matrix::Hybrid< ValueType, IndexType >::strategy_type::compute_hybrid_config().

compute_hybrid_config()

template<typename ValueType = default_precision, typename IndexType = int32>

void gko::matrix::Hybrid< ValueType, IndexType >::strategy_type::compute_hybrid_config ( const array< size_type > &  row_nnz, size_type *  ell_num_stored_elements_per_row, size_type *  coo_nnz  )

inline

Computes the config of the Hybrid matrix (ell_num_stored_elements_per_row and coo_nnz).

For now, it copies row_nnz to the reference executor and performs all operations on the reference executor.

Parameters

row_nnz	the number of nonzeros of each row
ell_num_stored_elements_per_row	the output number of stored elements per row of the ell part
coo_nnz	the output number of nonzeros of the coo part

References gko::matrix::Hybrid< ValueType, IndexType >::strategy_type::compute_ell_num_stored_elements_per_row(), gko::array< ValueType >::get_executor(), and gko::array< ValueType >::get_size().

get_coo_nnz()

template<typename ValueType = default_precision, typename IndexType = int32>

size_type gko::matrix::Hybrid< ValueType, IndexType >::strategy_type::get_coo_nnz ( ) const

inlinenoexcept

Returns the number of nonzeros of the coo part.

Returns

the number of nonzeros of the coo part

get_ell_num_stored_elements_per_row()

template<typename ValueType = default_precision, typename IndexType = int32>

size_type gko::matrix::Hybrid< ValueType, IndexType >::strategy_type::get_ell_num_stored_elements_per_row ( ) const

inlinenoexcept

Returns the number of stored elements per row of the ell part.

Returns

the number of stored elements per row of the ell part

---

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

• ginkgo/core/matrix/hybrid.hpp