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amg_operations.hpp File Reference

Implementations of routines for AMG using the CPU on the host (with OpenMP if enabled). More...

`#include <cstdlib>`
`#include <cmath>`
`#include "viennacl/linalg/detail/amg/amg_base.hpp"`
`#include <map>`
`#include <set>`
`#include <functional>`

Go to the source code of this file.

## Classes

struct | viennacl::linalg::host_based::amg::amg_id_influence
| Helper struct for sequential classical one-pass coarsening. More...

## 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::host_based
| Holds all compute kernels with conventional host-based execution (buffers in CPU RAM).
| viennacl::linalg::host_based::amg

## Functions

template<typename NumericT >
void | viennacl::linalg::host_based::amg::amg_influence_trivial (compressed_matrix< NumericT > const &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
| Routine for taking all connections in the matrix as strong. More...
template<typename NumericT >
void | viennacl::linalg::host_based::amg::amg_influence_advanced (compressed_matrix< NumericT > const &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
| Routine for extracting strongly connected points considering a user-provided threshold value. More...
template<typename NumericT >
void | viennacl::linalg::host_based::amg::amg_influence (compressed_matrix< NumericT > const &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
| Dispatcher for influence processing. More...
void | viennacl::linalg::host_based::amg::enumerate_coarse_points (viennacl::linalg::detail::amg::amg_level_context &amg_context)
| Assign IDs to coarse points. More...
bool | viennacl::linalg::host_based::amg::operator> (amg_id_influence const &a, amg_id_influence const &b)
template<typename NumericT >
void | viennacl::linalg::host_based::amg::amg_coarse_classic_onepass (compressed_matrix< NumericT > const &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
| Classical (RS) one-pass coarsening. Single-Threaded! (VIENNACL_AMG_COARSE_CLASSIC_ONEPASS) More...
template<typename NumericT >
void | viennacl::linalg::host_based::amg::amg_coarse_ag_stage1_sequential (compressed_matrix< NumericT > const &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
| AG (aggregation based) coarsening, single-threaded version of stage 1. More...
template<typename NumericT >
void | viennacl::linalg::host_based::amg::amg_coarse_ag_stage1_mis2 (compressed_matrix< NumericT > const &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
| AG (aggregation based) coarsening, multi-threaded version of stage 1 using parallel maximum independent sets. More...
template<typename NumericT >
void | viennacl::linalg::host_based::amg::amg_coarse_ag (compressed_matrix< NumericT > const &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
| AG (aggregation based) coarsening. Partially single-threaded version (VIENNACL_AMG_COARSE_AG) More...
template<typename MatrixT >
void | viennacl::linalg::host_based::amg::amg_coarse (MatrixT &A, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
| Entry point and dispatcher for coarsening procedures. More...
template<typename NumericT >
void | viennacl::linalg::host_based::amg::amg_interpol_direct (compressed_matrix< NumericT > const &A, compressed_matrix< NumericT > &P, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
| Direct interpolation. Multi-threaded! (VIENNACL_AMG_INTERPOL_DIRECT) More...
template<typename NumericT >
void | viennacl::linalg::host_based::amg::amg_interpol_ag (compressed_matrix< NumericT > const &A, compressed_matrix< NumericT > &P, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
| AG (aggregation based) interpolation. Multi-Threaded! (VIENNACL_INTERPOL_AG) More...
template<typename NumericT >
void | viennacl::linalg::host_based::amg::amg_interpol_sa (compressed_matrix< NumericT > const &A, compressed_matrix< NumericT > &P, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
| Smoothed aggregation interpolation. Multi-Threaded! (VIENNACL_INTERPOL_SA) More...
template<typename MatrixT >
void | viennacl::linalg::host_based::amg::amg_interpol (MatrixT const &A, MatrixT &P, viennacl::linalg::detail::amg::amg_level_context &amg_context, viennacl::linalg::amg_tag &tag)
| Dispatcher for building the interpolation matrix. More...
template<typename NumericT >
void | viennacl::linalg::host_based::amg::amg_transpose (compressed_matrix< NumericT > const &A, compressed_matrix< NumericT > &B)
| Computes B = trans(A). More...
template<typename NumericT , unsigned int AlignmentV>
void | viennacl::linalg::host_based::amg::assign_to_dense (viennacl::compressed_matrix< NumericT, AlignmentV > const &A, viennacl::matrix_base< NumericT > &B)
template<typename NumericT >
void | viennacl::linalg::host_based::amg::smooth_jacobi (unsigned int iterations, compressed_matrix< NumericT > const &A, vector< NumericT > &x, vector< NumericT > &x_backup, vector< NumericT > const &rhs_smooth, NumericT weight)
| Damped Jacobi Smoother (CUDA version) More...

## Detailed Description

Implementations of routines for AMG using the CPU on the host (with OpenMP if enabled).

Definition in file amg_operations.hpp.