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MFEM
v4.2.0
Finite element discretization library
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MFEM
v4.2.0
Finite element discretization library
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#include <hypre.hpp>
Public Member Functions | |
| HypreEuclid (MPI_Comm comm) | |
| HypreEuclid (HypreParMatrix &A) | |
| virtual void | SetOperator (const Operator &op) |
| Set/update the solver for the given operator. More... | |
| virtual | operator HYPRE_Solver () const |
| The typecast to HYPRE_Solver returns the internal euc_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 | ~HypreEuclid () |
 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: y=A(x). More... | |
| void | SetErrorMode (ErrorMode err_mode) const |
| Set the behavior for treating hypre errors, see the ErrorMode enum. The default mode in the base class is ABORT_HYPRE_ERRORS. More... | |
| virtual | ~HypreSolver () |
| Public Member Functions inherited from mfem::Solver | |
| Solver (int s=0, bool iter_mode=false) | |
| Initialize a square Solver with size s. More... | |
| 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 | |
| void | InitTVectors (const Operator *Po, const Operator *Ri, const Operator *Pi, Vector &x, Vector &b, Vector &X, Vector &B) const |
| Initializes memory for true vectors of linear system. More... | |
| Operator (int s=0) | |
| Construct a square Operator with given size s (default 0). More... | |
| Operator (int h, int w) | |
| Construct an Operator with the given height (output size) and width (input size). More... | |
| int | Height () const |
| Get the height (size of output) of the Operator. Synonym with NumRows(). More... | |
| int | NumRows () const |
| Get the number of rows (size of output) of the Operator. Synonym with Height(). More... | |
| int | Width () const |
| Get the width (size of input) of the Operator. Synonym with NumCols(). More... | |
| int | NumCols () const |
| Get the number of columns (size of input) of the Operator. Synonym with Width(). More... | |
| virtual MemoryClass | GetMemoryClass () const |
| Return the MemoryClass preferred by the Operator. More... | |
| virtual void | MultTranspose (const Vector &x, Vector &y) const |
Action of the transpose operator: y=A^t(x). The default behavior in class Operator is to generate an error. More... | |
| virtual Operator & | GetGradient (const Vector &x) const |
| Evaluate the gradient operator at the point x. The default behavior in class Operator is to generate an error. More... | |
| virtual const Operator * | GetProlongation () const |
Prolongation operator from linear algebra (linear system) vectors, to input vectors for the operator. NULL means identity. More... | |
| virtual const Operator * | GetRestriction () const |
Restriction operator from input vectors for the operator to linear algebra (linear system) vectors. NULL means identity. More... | |
| virtual const Operator * | GetOutputProlongation () const |
Prolongation operator from linear algebra (linear system) vectors, to output vectors for the operator. NULL means identity. More... | |
| virtual const Operator * | GetOutputRestriction () const |
Restriction operator from output vectors for the operator to linear algebra (linear system) vectors. NULL means identity. More... | |
| void | FormLinearSystem (const Array< int > &ess_tdof_list, Vector &x, Vector &b, Operator *&A, Vector &X, Vector &B, int copy_interior=0) |
| Form a constrained linear system using a matrix-free approach. More... | |
| void | FormRectangularLinearSystem (const Array< int > &trial_tdof_list, const Array< int > &test_tdof_list, Vector &x, Vector &b, Operator *&A, Vector &X, Vector &B) |
| Form a column-constrained linear system using a matrix-free approach. More... | |
| virtual void | RecoverFEMSolution (const Vector &X, const Vector &b, Vector &x) |
| Reconstruct a solution vector x (e.g. a GridFunction) from the solution X of a constrained linear system obtained from Operator::FormLinearSystem() or Operator::FormRectangularLinearSystem(). More... | |
| void | FormSystemOperator (const Array< int > &ess_tdof_list, Operator *&A) |
| Return in A a parallel (on truedofs) version of this square operator. More... | |
| void | FormRectangularSystemOperator (const Array< int > &trial_tdof_list, const Array< int > &test_tdof_list, Operator *&A) |
| Return in A a parallel (on truedofs) version of this rectangular operator (including constraints). More... | |
| void | FormDiscreteOperator (Operator *&A) |
| Return in A a parallel (on truedofs) version of this rectangular operator. More... | |
| void | PrintMatlab (std::ostream &out, int n=0, int m=0) const |
| Prints operator with input size n and output size m in Matlab format. More... | |
| virtual | ~Operator () |
| Virtual destructor. More... | |
| Type | GetType () const |
| Return the type ID of the Operator class. More... | |
Additional Inherited Members | |
| Public Types inherited from mfem::HypreSolver | |
| enum | ErrorMode { IGNORE_HYPRE_ERRORS, WARN_HYPRE_ERRORS, ABORT_HYPRE_ERRORS } |
| How to treat errors returned by hypre function calls. More... | |
| Public Types inherited from mfem::Operator | |
| enum | DiagonalPolicy { DIAG_ZERO, DIAG_ONE, DIAG_KEEP } |
| Defines operator diagonal policy upon elimination of rows and/or columns. More... | |
| enum | Type { ANY_TYPE, MFEM_SPARSEMAT, Hypre_ParCSR, PETSC_MATAIJ, PETSC_MATIS, PETSC_MATSHELL, PETSC_MATNEST, PETSC_MATHYPRE, PETSC_MATGENERIC, Complex_Operator, MFEM_ComplexSparseMat, Complex_Hypre_ParCSR } |
| Enumeration defining IDs for some classes derived from Operator. More... | |
| Public Attributes inherited from mfem::Solver | |
| bool | iterative_mode |
| If true, use the second argument of Mult() as an initial guess. More... | |
| Protected Member Functions inherited from mfem::Operator | |
| void | FormConstrainedSystemOperator (const Array< int > &ess_tdof_list, ConstrainedOperator *&Aout) |
| see FormSystemOperator() More... | |
| void | FormRectangularConstrainedSystemOperator (const Array< int > &trial_tdof_list, const Array< int > &test_tdof_list, RectangularConstrainedOperator *&Aout) |
| see FormRectangularSystemOperator() More... | |
| Operator * | SetupRAP (const Operator *Pi, const Operator *Po) |
| Returns RAP Operator of this, taking in input/output Prolongation matrices. More... | |
| Protected Attributes inherited from mfem::HypreSolver | |
| HypreParMatrix * | A |
| The linear system matrix. More... | |
| HypreParVector * | B |
| Right-hand side and solution vector. More... | |
| HypreParVector * | X |
| int | setup_called |
| Was hypre's Setup function called already? More... | |
| ErrorMode | error_mode |
| How to treat hypre errors. More... | |
| Protected Attributes inherited from mfem::Operator | |
| int | height |
| Dimension of the output / number of rows in the matrix. More... | |
| int | width |
| Dimension of the input / number of columns in the matrix. More... | |
The Euclid preconditioner in Hypre
Euclid implements the Parallel Incomplete LU factorization technique. For more information see:
"A Scalable Parallel Algorithm for Incomplete Factor Preconditioning" by David Hysom and Alex Pothen, https://doi.org/10.1137/S1064827500376193
| mfem::HypreEuclid::HypreEuclid | ( | HypreParMatrix & | A | ) |
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inlinevirtual |
The typecast to HYPRE_Solver returns the internal euc_precond.
Implements mfem::HypreSolver.
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virtual |
Set/update the solver for the given operator.
Reimplemented from mfem::HypreSolver.
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inlinevirtual |
hypre's internal Setup function
Implements mfem::HypreSolver.
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inlinevirtual |
hypre's internal Solve function
Implements mfem::HypreSolver.
1.8.5
