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

Drops entries the unscaled distance Laplacian. More...

#include <MueLu_DistanceLaplacianDropping.hpp>

Public 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 >
 
using mATS = Kokkos::ArithTraits< magnitudeType >
 

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 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, Misc::StrengthMeasure measure>
class MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType, measure >

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 413 of file MueLu_DistanceLaplacianDropping.hpp.

Member Typedef Documentation

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

Definition at line 415 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 416 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 417 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 418 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 419 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 420 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 421 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 423 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 425 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 426 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 427 of file MueLu_DistanceLaplacianDropping.hpp.

template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node, class DistanceFunctorType, Misc::StrengthMeasure measure>
using MueLu::DistanceLaplacian::DropFunctor< Scalar, LocalOrdinal, GlobalOrdinal, Node, DistanceFunctorType, measure >::mATS = Kokkos::ArithTraits<magnitudeType>

Definition at line 428 of file MueLu_DistanceLaplacianDropping.hpp.

Constructor & Destructor Documentation

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

Definition at line 440 of file MueLu_DistanceLaplacianDropping.hpp.

Member Function Documentation

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

Definition at line 457 of file MueLu_DistanceLaplacianDropping.hpp.

Member Data Documentation

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

Definition at line 431 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 432 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 433 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 434 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 435 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 436 of file MueLu_DistanceLaplacianDropping.hpp.

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

Definition at line 437 of file MueLu_DistanceLaplacianDropping.hpp.

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