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MFEM
v3.3
Finite element discretization library
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MFEM
v3.3
Finite element discretization library
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Data type for scaled Jacobi-type smoother of sparse matrix. More...
#include <sparsesmoothers.hpp>
Public Member Functions | |
| DSmoother (int t=0, double s=1., int it=1) | |
| Create Jacobi smoother. More... | |
| DSmoother (const SparseMatrix &a, int t=0, double s=1., int it=1) | |
| Create Jacobi smoother. More... | |
| virtual void | Mult (const Vector &x, Vector &y) const |
| Matrix vector multiplication with Jacobi smoother. More... | |
 Public Member Functions inherited from mfem::SparseSmoother | |
| SparseSmoother () | |
| SparseSmoother (const SparseMatrix &a) | |
| virtual void | SetOperator (const Operator &a) |
| Set/update the solver for the given operator. More... | |
| Public Member Functions inherited from mfem::MatrixInverse | |
| MatrixInverse () | |
| MatrixInverse (const Matrix &mat) | |
| Creates approximation of the inverse of square matrix. 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 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... | |
Protected Attributes | |
| int | type |
| double | scale |
| int | iterations |
| Vector | z |
| Protected Attributes inherited from mfem::SparseSmoother | |
| const SparseMatrix * | oper |
| 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 { MFEM_SPARSEMAT, HYPRE_PARCSR, PETSC_MATAIJ, PETSC_MATIS, PETSC_MATSHELL, PETSC_MATNEST } |
| 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... | |
Data type for scaled Jacobi-type smoother of sparse matrix.
Definition at line 55 of file sparsesmoothers.hpp.
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inline |
Create Jacobi smoother.
Definition at line 66 of file sparsesmoothers.hpp.
| mfem::DSmoother::DSmoother | ( | const SparseMatrix & | a, |
| int | t = 0, |
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| double | s = 1., |
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| int | it = 1 |
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| ) |
Create Jacobi smoother.
Create the Jacobi smoother.
Definition at line 55 of file sparsesmoothers.cpp.
Matrix vector multiplication with Jacobi smoother.
Implements mfem::Operator.
Definition at line 64 of file sparsesmoothers.cpp.
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protected |
Definition at line 60 of file sparsesmoothers.hpp.
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protected |
Definition at line 59 of file sparsesmoothers.hpp.
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protected |
Definition at line 58 of file sparsesmoothers.hpp.
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mutableprotected |
Definition at line 62 of file sparsesmoothers.hpp.
1.8.5
