|
| | PetscParMatrix () |
| | Create an empty matrix to be used as a reference to an existing matrix.
|
| |
| | PetscParMatrix (petsc::Mat a, bool ref=false) |
| | Creates PetscParMatrix out of PETSc's Mat.
|
| |
| | PetscParMatrix (const PetscParMatrix *pa, Operator::Type tid) |
| | Convert a PetscParMatrix pa with a new PETSc format tid. Note that if pa is already a PetscParMatrix of the same type as tid, the resulting PetscParMatrix will share the same Mat object.
|
| |
| | PetscParMatrix (const PetscParMatrix &A, const Array< PetscInt > &rows, const Array< PetscInt > &cols) |
| | Creates a PetscParMatrix extracting the submatrix of A with rows row indices and cols column indices.
|
| |
| | PetscParMatrix (const HypreParMatrix *ha, Operator::Type tid=Operator::PETSC_MATAIJ) |
| | Convert a HypreParMatrix ha to a PetscParMatrix in the given PETSc format tid.
|
| |
| | PetscParMatrix (const SparseMatrix *sa, Operator::Type tid=Operator::PETSC_MATAIJ) |
| | Convert a SparseMatrix ha to a PetscParMatrix in the given PETSc format tid.
|
| |
| | PetscParMatrix (MPI_Comm comm, const Operator *op, Operator::Type tid=Operator::PETSC_MATSHELL) |
| | Convert an mfem::Operator into a PetscParMatrix in the given PETSc format tid.
|
| |
| | PetscParMatrix (MPI_Comm comm, PetscInt glob_size, PetscInt *row_starts, SparseMatrix *diag, Operator::Type tid) |
| | Creates block-diagonal square parallel matrix.
|
| |
| | PetscParMatrix (MPI_Comm comm, PetscInt global_num_rows, PetscInt global_num_cols, PetscInt *row_starts, PetscInt *col_starts, SparseMatrix *diag, Operator::Type tid) |
| | Creates block-diagonal rectangular parallel matrix.
|
| |
| virtual | ~PetscParMatrix () |
| | Calls PETSc's destroy function.
|
| |
| void | SetMat (petsc::Mat newA) |
| | Replace the inner Mat Object. The reference count of newA is increased.
|
| |
| void | Mult (real_t a, const Vector &x, real_t b, Vector &y) const |
| | Matvec: y = a A x + b y.
|
| |
| void | MultTranspose (real_t a, const Vector &x, real_t b, Vector &y) const |
| | Matvec transpose: y = a A^T x + b y.
|
| |
| void | Mult (const Vector &x, Vector &y) const override |
| | Operator application: y=A(x).
|
| |
| void | MultTranspose (const Vector &x, Vector &y) const override |
| | Action of the transpose operator: y=A^t(x). The default behavior in class Operator is to generate an error.
|
| |
| void | AddMult (const Vector &x, Vector &y, const real_t a=1.0) const override |
| | Operator application: y+=A(x) (default) or y+=a*A(x).
|
| |
| void | AddMultTranspose (const Vector &x, Vector &y, const real_t a=1.0) const override |
| | Operator transpose application: y+=A^t(x) (default) or y+=a*A^t(x).
|
| |
| MPI_Comm | GetComm () const |
| | Get the associated MPI communicator.
|
| |
| | operator petsc::Mat () const |
| | Typecasting to PETSc's Mat type.
|
| |
| | operator PetscObject () const |
| | Typecasting to PETSc object.
|
| |
| PetscInt | GetRowStart () const |
| | Returns the global index of the first local row.
|
| |
| PetscInt | GetColStart () const |
| | Returns the global index of the first local column.
|
| |
| PetscInt | GetNumRows () const |
| | Returns the local number of rows.
|
| |
| PetscInt | GetNumCols () const |
| | Returns the local number of columns.
|
| |
| PetscInt | M () const |
| | Returns the global number of rows.
|
| |
| PetscInt | N () const |
| | Returns the global number of columns.
|
| |
| PetscInt | GetGlobalNumRows () const |
| | Returns the global number of rows.
|
| |
| PetscInt | GetGlobalNumCols () const |
| | Returns the global number of columns.
|
| |
| PetscInt | NNZ () const |
| | Returns the number of nonzeros.
|
| |
| PetscParVector * | GetX () const |
| | Returns the inner vector in the domain of A (it creates it if needed)
|
| |
| PetscParVector * | GetY () const |
| | Returns the inner vector in the range of A (it creates it if needed)
|
| |
| PetscParMatrix * | Transpose (bool action=false) |
| | Returns the transpose of the PetscParMatrix.
|
| |
| void | Print (const char *fname=NULL, bool binary=false) const |
| | Prints the matrix (to stdout if fname is NULL)
|
| |
| void | operator*= (real_t s) |
| | Scale all entries by s: A_scaled = s*A.
|
| |
| void | EliminateRowsCols (const Array< int > &rows_cols, const PetscParVector &X, PetscParVector &B, real_t diag=1.) |
| | Eliminate rows and columns from the matrix, and rows from the vector B. Modify B with the BC values in X. Put diag on the diagonal corresponding to eliminated entries.
|
| |
| void | EliminateRowsCols (const Array< int > &rows_cols, const HypreParVector &X, HypreParVector &B, real_t diag=1.) |
| |
| PetscParMatrix * | EliminateRowsCols (const Array< int > &rows_cols) |
| | Eliminate rows and columns from the matrix and store the eliminated elements in a new matrix Ae (returned).
|
| |
| void | ScaleRows (const Vector &s) |
| | Scale the local row i by s(i).
|
| |
| void | ScaleCols (const Vector &s) |
| | Scale the local col i by s(i).
|
| |
| void | Shift (real_t s) |
| | Shift diagonal by a constant.
|
| |
| void | Shift (const Vector &s) |
| | Shift diagonal by a vector.
|
| |
| void | EliminateRows (const Array< int > &rows) |
| | Eliminate only the rows from the matrix.
|
| |
| void | SetBlockSize (PetscInt rbs, PetscInt cbs=-1) |
| | Set row and column block sizes of a matrix.
|
| |
| void | MakeRef (const PetscParMatrix &master) |
| | Makes this object a reference to another PetscParMatrix.
|
| |
| petsc::Mat | ReleaseMat (bool dereference) |
| | Release the PETSc Mat object. If dereference is true, decrement the refcount of the Mat object.
|
| |
| Type | GetType () const |
| |
|
| PetscParMatrix & | operator= (const PetscParMatrix &B) |
| |
| PetscParMatrix & | operator= (const HypreParMatrix &B) |
| |
| PetscParMatrix & | operator+= (const PetscParMatrix &B) |
| |
| PetscParMatrix & | operator-= (const PetscParMatrix &B) |
| |
| 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.
|
| |
| | Operator (int s=0) |
| | Construct a square Operator with given size s (default 0).
|
| |
| | Operator (int h, int w) |
| | Construct an Operator with the given height (output size) and width (input size).
|
| |
| int | Height () const |
| | Get the height (size of output) of the Operator. Synonym with NumRows().
|
| |
| int | NumRows () const |
| | Get the number of rows (size of output) of the Operator. Synonym with Height().
|
| |
| int | Width () const |
| | Get the width (size of input) of the Operator. Synonym with NumCols().
|
| |
| int | NumCols () const |
| | Get the number of columns (size of input) of the Operator. Synonym with Width().
|
| |
| virtual MemoryClass | GetMemoryClass () const |
| | Return the MemoryClass preferred by the Operator.
|
| |
| virtual void | ArrayMult (const Array< const Vector * > &X, Array< Vector * > &Y) const |
| | Operator application on a matrix: Y=A(X).
|
| |
| virtual void | ArrayMultTranspose (const Array< const Vector * > &X, Array< Vector * > &Y) const |
| | Action of the transpose operator on a matrix: Y=A^t(X).
|
| |
| virtual void | ArrayAddMult (const Array< const Vector * > &X, Array< Vector * > &Y, const real_t a=1.0) const |
| | Operator application on a matrix: Y+=A(X) (default) or Y+=a*A(X).
|
| |
| virtual void | ArrayAddMultTranspose (const Array< const Vector * > &X, Array< Vector * > &Y, const real_t a=1.0) const |
| | Operator transpose application on a matrix: Y+=A^t(X) (default) or Y+=a*A^t(X).
|
| |
| 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.
|
| |
| virtual void | AssembleDiagonal (Vector &diag) const |
| | Computes the diagonal entries into diag. Typically, this operation only makes sense for linear Operators. In some cases, only an approximation of the diagonal is computed.
|
| |
| virtual const Operator * | GetProlongation () const |
| | Prolongation operator from linear algebra (linear system) vectors, to input vectors for the operator. NULL means identity.
|
| |
| virtual const Operator * | GetRestriction () const |
| | Restriction operator from input vectors for the operator to linear algebra (linear system) vectors. NULL means identity.
|
| |
| virtual const Operator * | GetOutputProlongation () const |
| | Prolongation operator from linear algebra (linear system) vectors, to output vectors for the operator. NULL means identity.
|
| |
| virtual const Operator * | GetOutputRestrictionTranspose () const |
| | Transpose of GetOutputRestriction, directly available in this form to facilitate matrix-free RAP-type operators.
|
| |
| virtual const Operator * | GetOutputRestriction () const |
| | Restriction operator from output vectors for the operator to linear algebra (linear system) vectors. NULL means identity.
|
| |
| 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.
|
| |
| 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.
|
| |
| 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().
|
| |
| void | FormSystemOperator (const Array< int > &ess_tdof_list, Operator *&A) |
| | Return in A a parallel (on truedofs) version of this square operator.
|
| |
| 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).
|
| |
| void | FormDiscreteOperator (Operator *&A) |
| | Return in A a parallel (on truedofs) version of this rectangular operator.
|
| |
| void | PrintMatlab (std::ostream &out, int n, int m=0) const |
| | Prints operator with input size n and output size m in Matlab format.
|
| |
| virtual void | PrintMatlab (std::ostream &out) const |
| | Prints operator in Matlab format.
|
| |
| virtual | ~Operator () |
| | Virtual destructor.
|
| |
| Type | GetType () const |
| | Return the type ID of the Operator class.
|
| |
Wrapper for PETSc's matrix class.
Definition at line 318 of file petsc.hpp.
Public Member Functions inherited from mfem::Operator
1.11.0