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MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType > Class Template Reference

Drops entries the unscaled distance Laplacian. More...

#include <MueLu_DistanceLaplacianDropping.hpp>

Public Member Functions

 DropFunctor (matrix_type &A_, magnitudeType threshold, DistanceFunctorType &dist2_, results_view &results_)
 
KOKKOS_FORCEINLINE_FUNCTION void operator() (local_ordinal_type rlid) const
 

Private Types

using matrix_type = Xpetra::Matrix< Scalar, LocalOrdinal, GlobalOrdinal, Node >
 
using local_matrix_type = typename matrix_type::local_matrix_type
 
using scalar_type = typename local_matrix_type::value_type
 
using local_ordinal_type = typename local_matrix_type::ordinal_type
 
using memory_space = typename local_matrix_type::memory_space
 
using diag_vec_type = Xpetra::MultiVector< Scalar, LocalOrdinal, GlobalOrdinal, Node >
 
using diag_view_type = typename Kokkos::DualView< const scalar_type *, Kokkos::LayoutStride, typename Node::device_type, Kokkos::MemoryUnmanaged >::t_dev
 
using results_view = Kokkos::View< DecisionType *, memory_space >
 
using ATS = Kokkos::ArithTraits< scalar_type >
 
using magnitudeType = typename ATS::magnitudeType
 
using boundary_nodes_view = Kokkos::View< const bool *, memory_space >
 

Private Attributes

local_matrix_type A
 
magnitudeType eps
 
Teuchos::RCP< diag_vec_type > diagVec
 
diag_view_type diag
 
DistanceFunctorType dist2
 
results_view results
 
const scalar_type one = ATS::one()
 

Detailed Description

template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node, class DistanceFunctorType>
class MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >

Drops entries the unscaled distance Laplacian.

Evaluates the dropping criterion

\[ \frac{|d_{ij}|^2}{|d_{ii}| |d_{jj}|} \le \theta^2 \]

where \(d_{ij}\) is a distance metric.

Definition at line 355 of file MueLu_DistanceLaplacianDropping.hpp.

Member Typedef Documentation

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
using MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::matrix_type = Xpetra::Matrix<Scalar, LocalOrdinal, GlobalOrdinal, Node>
private

Definition at line 357 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
using MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::local_matrix_type = typename matrix_type::local_matrix_type
private

Definition at line 358 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
using MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::scalar_type = typename local_matrix_type::value_type
private

Definition at line 359 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
using MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::local_ordinal_type = typename local_matrix_type::ordinal_type
private

Definition at line 360 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
using MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::memory_space = typename local_matrix_type::memory_space
private

Definition at line 361 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
using MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::diag_vec_type = Xpetra::MultiVector<Scalar, LocalOrdinal, GlobalOrdinal, Node>
private

Definition at line 362 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
using MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::diag_view_type = typename Kokkos::DualView<const scalar_type*, Kokkos::LayoutStride, typename Node::device_type, Kokkos::MemoryUnmanaged>::t_dev
private

Definition at line 363 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
using MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::results_view = Kokkos::View<DecisionType*, memory_space>
private

Definition at line 365 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
using MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::ATS = Kokkos::ArithTraits<scalar_type>
private

Definition at line 367 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
using MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::magnitudeType = typename ATS::magnitudeType
private

Definition at line 368 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
using MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::boundary_nodes_view = Kokkos::View<const bool*, memory_space>
private

Definition at line 369 of file MueLu_DistanceLaplacianDropping.hpp.

Constructor & Destructor Documentation

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::DropFunctor ( matrix_type &  A_,
magnitudeType  threshold,
DistanceFunctorType &  dist2_,
results_view &  results_ 
)
inline

Definition at line 380 of file MueLu_DistanceLaplacianDropping.hpp.

Member Function Documentation

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
KOKKOS_FORCEINLINE_FUNCTION void MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::operator() ( local_ordinal_type  rlid) const
inline

Definition at line 391 of file MueLu_DistanceLaplacianDropping.hpp.

Member Data Documentation

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
local_matrix_type MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::A
private

Definition at line 371 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
magnitudeType MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::eps
private

Definition at line 372 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
Teuchos::RCP<diag_vec_type> MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::diagVec
private

Definition at line 373 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
diag_view_type MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::diag
private

Definition at line 374 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
DistanceFunctorType MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::dist2
private

Definition at line 375 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
results_view MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::results
private

Definition at line 376 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node , class DistanceFunctorType >
const scalar_type MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType >::one = ATS::one()
private

Definition at line 377 of file MueLu_DistanceLaplacianDropping.hpp.

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