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amg_interpol.hpp File Reference

Implementations of several variants of the AMG interpolation operators (setup phase). Experimental. More...

`#include <boost/numeric/ublas/vector.hpp>`
`#include <cmath>`
`#include "viennacl/linalg/detail/amg/amg_base.hpp"`
`#include <map>`
`#include "viennacl/linalg/detail/amg/amg_debug.hpp"`

Go to the source code of this file.

## Namespaces

| viennacl
| Main namespace in ViennaCL. Holds all the basic types such as vector, matrix, etc. and defines operations upon them.
| viennacl::linalg
| Provides all linear algebra operations which are not covered by operator overloads.
| viennacl::linalg::detail
| Namespace holding implementation details for linear algebra routines. Usually not of interest for a library user.
| viennacl::linalg::detail::amg
| Implementation namespace for algebraic multigrid preconditioner.

## Functions

template<typename InternalT1 , typename InternalT2 >
void | viennacl::linalg::detail::amg::amg_interpol (unsigned int level, InternalT1 &A, InternalT1 &P, InternalT2 &pointvector, amg_tag &tag)
| Calls the right function to build interpolation matrix. More...
template<typename InternalT1 , typename InternalT2 >
void | viennacl::linalg::detail::amg::amg_interpol_direct (unsigned int level, InternalT1 &A, InternalT1 &P, InternalT2 &pointvector, amg_tag &tag)
| Direct interpolation. Multi-threaded! (VIENNACL_AMG_INTERPOL_DIRECT) More...
template<typename InternalT1 , typename InternalT2 >
void | viennacl::linalg::detail::amg::amg_interpol_classic (unsigned int level, InternalT1 &A, InternalT1 &P, InternalT2 &pointvector, amg_tag &tag)
| Classical interpolation. Don't use with onepass classical coarsening or RS0 (Yang, p.14)! Multi-threaded! (VIENNACL_AMG_INTERPOL_CLASSIC) More...
template<typename SparseMatrixT >
void | viennacl::linalg::detail::amg::amg_truncate_row (SparseMatrixT &P, unsigned int row, amg_tag &tag)
| Interpolation truncation (for VIENNACL_AMG_INTERPOL_DIRECT and VIENNACL_AMG_INTERPOL_CLASSIC) More...
template<typename InternalT1 , typename InternalT2 >
void | viennacl::linalg::detail::amg::amg_interpol_ag (unsigned int level, InternalT1 &A, InternalT1 &P, InternalT2 &pointvector, amg_tag)
| AG (aggregation based) interpolation. Multi-Threaded! (VIENNACL_INTERPOL_SA) More...
template<typename InternalT1 , typename InternalT2 >
void | viennacl::linalg::detail::amg::amg_interpol_sa (unsigned int level, InternalT1 &A, InternalT1 &P, InternalT2 &pointvector, amg_tag &tag)
| SA (smoothed aggregate) interpolation. Multi-Threaded! (VIENNACL_INTERPOL_SA) More...

## Detailed Description

Implementations of several variants of the AMG interpolation operators (setup phase). Experimental.

Definition in file amg_interpol.hpp.