Ginkgo: gko::matrix::Csr< ValueType, IndexType >::scale_add_reuse_info Class Reference

| Ginkgo Generated from branch based on main. Ginkgo version 1.11.0 A numerical linear algebra library targeting many-core architectures

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gko::matrix::Csr< ValueType, IndexType >::scale_add_reuse_info Class Reference

Class describing the internal lookup structures created by scale_add_reuse to recompute a sparse matrix-matrix sum with updated values. More...

`#include <ginkgo/core/matrix/csr.hpp>`

## Public Member Functions
| scale_add_reuse_info (const scale_add_reuse_info &)=delete
| scale_add_reuse_info (scale_add_reuse_info &&) noexcept
scale_add_reuse_info & | operator= (const scale_add_reuse_info &)=delete
scale_add_reuse_info & | operator= (scale_add_reuse_info &&) noexcept
void | update_values (ptr_param< const Dense< value_type > > scale1, ptr_param< const Csr > mtx1, ptr_param< const Dense< value_type > > scale2, ptr_param< const Csr > mtx2, ptr_param< Csr > out) const
| Recomputes the sparse matrix-matrix sum out = scale1 * mtx1 + scale2 * mtx2 when only the values of mtx1, scale1, mtx2, scale2 changed, but the sparsity patterns of mtx1, mtx2 and out are unchanged.

## Friends
class | Csr

## Detailed Description

template<typename ValueType = default_precision, typename IndexType = int32>
class gko::matrix::Csr< ValueType, IndexType >::scale_add_reuse_info

Class describing the internal lookup structures created by scale_add_reuse to recompute a sparse matrix-matrix sum with updated values.

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

- ginkgo/core/matrix/csr.hpp