gko::DiagonalLinOpExtractable Class Reference

#include <ginkgo/core/base/lin_op.hpp>

Inheritance diagram for gko::DiagonalLinOpExtractable:

Public Member Functions
virtual std::unique_ptr< LinOp >	extract_diagonal_linop () const =0

Detailed Description

The diagonal of a LinOp can be extracted. It will be implemented by DiagonalExtractable<ValueType>, so the class does not need to implement it. extract_diagonal_linop returns a linop which extracts the elements whose col and row index are the same and stores the result in a min(nrows, ncols) x 1 dense matrix.

Member Function Documentation

extract_diagonal_linop()

virtual std::unique_ptr< LinOp > gko::DiagonalLinOpExtractable::extract_diagonal_linop ( ) const

pure virtual

Extracts the diagonal entries of the matrix into a vector.

Returns

linop the linop of diagonal format

Implemented in gko::DiagonalExtractable< ValueType >, gko::DiagonalExtractable< default_precision >, and gko::DiagonalExtractable< value_type >.

---

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

• ginkgo/core/base/lin_op.hpp