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MFEM
v4.0
Finite element discretization library
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MFEM
v4.0
Finite element discretization library
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FGMRES method. More...
#include <solvers.hpp>
Public Member Functions | |
| FGMRESSolver () | |
| FGMRESSolver (MPI_Comm _comm) | |
| void | SetKDim (int dim) |
| virtual void | Mult (const Vector &b, Vector &x) const |
Operator application: y=A(x). More... | |
 Public Member Functions inherited from mfem::IterativeSolver | |
| IterativeSolver () | |
| IterativeSolver (MPI_Comm _comm) | |
| void | SetRelTol (double rtol) |
| void | SetAbsTol (double atol) |
| void | SetMaxIter (int max_it) |
| void | SetPrintLevel (int print_lvl) |
| int | GetNumIterations () const |
| int | GetConverged () const |
| double | GetFinalNorm () const |
| virtual void | SetPreconditioner (Solver &pr) |
| This should be called before SetOperator. More... | |
| virtual void | SetOperator (const Operator &op) |
| Also calls SetOperator for the preconditioner if there is one. More... | |
| 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 | |
| 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... | |
| 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... | |
| 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(). 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... | |
Protected Attributes | |
| int | m |
| Protected Attributes inherited from mfem::IterativeSolver | |
| const Operator * | oper |
| Solver * | prec |
| int | max_iter |
| int | print_level |
| double | rel_tol |
| double | abs_tol |
| int | final_iter |
| int | converged |
| double | final_norm |
| 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... | |
Additional Inherited Members | |
| Public Types inherited from mfem::Operator | |
| enum | Type { ANY_TYPE, MFEM_SPARSEMAT, Hypre_ParCSR, PETSC_MATAIJ, PETSC_MATIS, PETSC_MATSHELL, PETSC_MATNEST, PETSC_MATHYPRE, PETSC_MATGENERIC } |
| 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::IterativeSolver | |
| double | Dot (const Vector &x, const Vector &y) const |
| double | Norm (const Vector &x) const |
FGMRES method.
Definition at line 162 of file solvers.hpp.
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inline |
Definition at line 168 of file solvers.hpp.
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inline |
Definition at line 171 of file solvers.hpp.
Operator application: y=A(x).
Implements mfem::Operator.
Definition at line 706 of file solvers.cpp.
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inline |
Definition at line 174 of file solvers.hpp.
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protected |
Definition at line 165 of file solvers.hpp.
1.8.5
