MFEM  v3.1
Finite element discretization library
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mfem::HypreBoomerAMG Class Reference

The BoomerAMG solver in hypre. More...

#include <hypre.hpp>

Inheritance diagram for mfem::HypreBoomerAMG:
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Collaboration diagram for mfem::HypreBoomerAMG:
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Public Member Functions

 HypreBoomerAMG ()
 
 HypreBoomerAMG (HypreParMatrix &A)
 
virtual void SetOperator (const Operator &op)
 Set/update the solver for the given operator. More...
 
void SetSystemsOptions (int dim)
 
void SetElasticityOptions (ParFiniteElementSpace *fespace)
 
void SetPrintLevel (int print_level)
 
virtual operator HYPRE_Solver () const
 The typecast to HYPRE_Solver returns the internal amg_precond. More...
 
virtual HYPRE_PtrToParSolverFcn SetupFcn () const
 hypre's internal Setup function More...
 
virtual HYPRE_PtrToParSolverFcn SolveFcn () const
 hypre's internal Solve function More...
 
virtual ~HypreBoomerAMG ()
 
- Public Member Functions inherited from mfem::HypreSolver
 HypreSolver ()
 
 HypreSolver (HypreParMatrix *_A)
 
virtual void Mult (const HypreParVector &b, HypreParVector &x) const
 Solve the linear system Ax=b. More...
 
virtual void Mult (const Vector &b, Vector &x) const
 Operator application. More...
 
virtual ~HypreSolver ()
 
- Public Member Functions inherited from mfem::Solver
 Solver (int s=0, bool iter_mode=false)
 
 Solver (int h, int w, bool iter_mode=false)
 Initialize a Solver with height 'h' and width 'w'. More...
 
- Public Member Functions inherited from mfem::Operator
 Operator (int s=0)
 Construct a square Operator with given size s (default 0) More...
 
 Operator (int h, int w)
 
int Height () const
 Get the height (size of output) of the Operator. Synonym with NumRows. More...
 
int NumRows () const
 
int Width () const
 Get the width (size of input) of the Operator. Synonym with NumCols. More...
 
int NumCols () const
 
virtual void MultTranspose (const Vector &x, Vector &y) const
 Action of the transpose operator. More...
 
virtual OperatorGetGradient (const Vector &x) const
 Evaluate the gradient operator at the point x. More...
 
void PrintMatlab (std::ostream &out, int n=0, int m=0)
 Prints operator with input size n and output size m in matlab format. More...
 
virtual ~Operator ()
 

Additional Inherited Members

- Public Attributes inherited from mfem::Solver
bool iterative_mode
 If true, use the second argument of Mult as an initial guess. More...
 
- Protected Attributes inherited from mfem::HypreSolver
HypreParMatrixA
 The linear system matrix. More...
 
HypreParVectorB
 Right-hand side and solution vector. More...
 
HypreParVectorX
 
int setup_called
 Was hypre's Setup function called already? More...
 
- Protected Attributes inherited from mfem::Operator
int height
 
int width
 

Detailed Description

The BoomerAMG solver in hypre.

Definition at line 698 of file hypre.hpp.

Constructor & Destructor Documentation

mfem::HypreBoomerAMG::HypreBoomerAMG ( )

Definition at line 2191 of file hypre.cpp.

mfem::HypreBoomerAMG::HypreBoomerAMG ( HypreParMatrix A)

Definition at line 2197 of file hypre.cpp.

mfem::HypreBoomerAMG::~HypreBoomerAMG ( )
virtual

Definition at line 2444 of file hypre.cpp.

Member Function Documentation

virtual mfem::HypreBoomerAMG::operator HYPRE_Solver ( ) const
inlinevirtual

The typecast to HYPRE_Solver returns the internal amg_precond.

Implements mfem::HypreSolver.

Definition at line 743 of file hypre.hpp.

void mfem::HypreBoomerAMG::SetElasticityOptions ( ParFiniteElementSpace fespace)

A special elasticity version of BoomerAMG that takes advantage of geometric rigid body modes and could perform better on some problems, see "Improving algebraic multigrid interpolation operators for linear elasticity problems", Baker, Kolev, Yang, NLAA 2009, DOI:10.1002/nla.688. As with SetSystemsOptions(), this solver assumes Ordering::byVDIM.

Definition at line 2408 of file hypre.cpp.

void mfem::HypreBoomerAMG::SetOperator ( const Operator op)
virtual

Set/update the solver for the given operator.

Reimplemented from mfem::HypreSolver.

Definition at line 2309 of file hypre.cpp.

void mfem::HypreBoomerAMG::SetPrintLevel ( int  print_level)
inline

Definition at line 739 of file hypre.hpp.

void mfem::HypreBoomerAMG::SetSystemsOptions ( int  dim)

More robust options for systems, such as elasticity. Note that BoomerAMG assumes Ordering::byVDIM in the finite element space used to generate the matrix A.

Definition at line 2326 of file hypre.cpp.

virtual HYPRE_PtrToParSolverFcn mfem::HypreBoomerAMG::SetupFcn ( ) const
inlinevirtual

hypre's internal Setup function

Implements mfem::HypreSolver.

Definition at line 745 of file hypre.hpp.

virtual HYPRE_PtrToParSolverFcn mfem::HypreBoomerAMG::SolveFcn ( ) const
inlinevirtual

hypre's internal Solve function

Implements mfem::HypreSolver.

Definition at line 747 of file hypre.hpp.


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