geosx::LinearSolverParameters::AMG Struct Reference

Algebraic multigrid parameters. More...

#include <LinearSolverParameters.hpp>

Public Types
enum	CycleType : integer { CycleType::V, CycleType::W }
	AMG cycle type. More...
enum	PreOrPost : integer { PreOrPost::pre, PreOrPost::post, PreOrPost::both }
	AMG pre/post smoothing option. More...
enum	SmootherType : integer {   SmootherType::default_, SmootherType::jacobi, SmootherType::l1jacobi, SmootherType::gs,   SmootherType::sgs, SmootherType::l1sgs, SmootherType::chebyshev, SmootherType::ilu0,   SmootherType::ilut, SmootherType::ic0, SmootherType::ict }
	AMG smoother type. More...
enum	CoarseType : integer {   CoarseType::default_, CoarseType::jacobi, CoarseType::l1jacobi, CoarseType::gs,   CoarseType::sgs, CoarseType::l1sgs, CoarseType::chebyshev, CoarseType::direct }
	AMG coarse solver type. More...
enum	NullSpaceType : integer { NullSpaceType::constantModes, NullSpaceType::rigidBodyModes }
	Null space type. More...

Public Attributes
integer	maxLevels = 20
	Maximum number of coarsening levels.
CycleType	cycleType = CycleType::V
	AMG cycle type.
SmootherType	smootherType = SmootherType::gs
	Smoother type.
CoarseType	coarseType = CoarseType::direct
	Coarse-level solver/smoother.
string	coarseningType = "HMIS"
	Coarsening algorithm.
integer	interpolationType = 6
	Coarsening algorithm.
integer	numSweeps = 2
	Number of smoother sweeps.
integer	numFunctions = 1
	Number of amg functions.
integer	aggresiveNumLevels = 0
	Number of levels for aggressive coarsening.
PreOrPost	preOrPostSmoothing = PreOrPost::both
	Pre and/or post smoothing.
real64	threshold = 0.0
	Threshold for "strong connections" (for classical and smoothed-aggregation AMG)
integer	separateComponents = false
	Apply a separate component filter before AMG construction.
NullSpaceType	nullSpaceType = NullSpaceType::constantModes
	Null space type [constantModes,rigidBodyModes].

Detailed Description

Algebraic multigrid parameters.

Definition at line 133 of file LinearSolverParameters.hpp.

Member Enumeration Documentation

CoarseType

enum geosx::LinearSolverParameters::AMG::CoarseType : integer

strong

AMG coarse solver type.

Enumerator
default_	Use LAI's default option.
jacobi	Jacobi.
l1jacobi	l1-Jacobi
gs	Gauss-Seidel.
sgs	Symmetric Gauss-Seidel.
l1sgs	l1-Symmetric Gauss-Seidel
chebyshev	Chebyshev polynomial.
direct	Direct solver as preconditioner.

Definition at line 167 of file LinearSolverParameters.hpp.

CycleType

enum geosx::LinearSolverParameters::AMG::CycleType : integer

strong

AMG cycle type.

Enumerator
V	V-cycle.
W	W-cycle.

Definition at line 136 of file LinearSolverParameters.hpp.

NullSpaceType

enum geosx::LinearSolverParameters::AMG::NullSpaceType : integer

strong

Null space type.

Enumerator
constantModes	Constant modes.
rigidBodyModes	Rigid body modes.

Definition at line 180 of file LinearSolverParameters.hpp.

PreOrPost

enum geosx::LinearSolverParameters::AMG::PreOrPost : integer

strong

AMG pre/post smoothing option.

Enumerator
pre	pre-smoothing only
post	post-smoothing only
both	pre- and post-smoothing

Definition at line 143 of file LinearSolverParameters.hpp.

SmootherType

enum geosx::LinearSolverParameters::AMG::SmootherType : integer

strong

AMG smoother type.

Enumerator
default_	Use LAI's default option.
jacobi	Jacobi smoothing.
l1jacobi	l1-Jacobi smoothing
gs	Gauss-Seidel smoothing.
sgs	Symmetric Gauss-Seidel smoothing.
l1sgs	l1-Symmetric Gauss-Seidel smoothing
chebyshev	Chebyshev polynomial smoothing.
ilu0	ILU(0)
ilut	Incomplete LU with thresholding.
ic0	Incomplete Cholesky.
ict	Incomplete Cholesky with thresholding.

Definition at line 151 of file LinearSolverParameters.hpp.

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

• coreComponents/linearAlgebra/utilities/LinearSolverParameters.hpp