PETSc version of the GenericLinearOperator. More...
#include <PETScLinearOperator.h>
Inheritance diagram for dolfin::PETScLinearOperator:
Collaboration diagram for dolfin::PETScLinearOperator:
Public Member Functions | |
| PETScLinearOperator (MPI_Comm comm) | |
| Constructor. | |
| virtual std::size_t | size (std::size_t dim) const |
| Return size of given dimension. | |
| virtual void | mult (const GenericVector &x, GenericVector &y) const |
| Compute matrix-vector product y = Ax. | |
| virtual MPI_Comm | mpi_comm () const |
| Return MPI communicator. | |
| virtual std::string | str (bool verbose) const |
| Return informal string representation (pretty-print) | |
| virtual const GenericLinearOperator * | wrapper () const |
| Return pointer to wrapper (const version) | |
| virtual GenericLinearOperator * | wrapper () |
| Return pointer to wrapper (const version) | |
 Public Member Functions inherited from dolfin::PETScBaseMatrix | |
| PETScBaseMatrix () | |
| Constructor. | |
| PETScBaseMatrix (Mat A) | |
| Constructor. | |
| PETScBaseMatrix (const PETScBaseMatrix &A) | |
| Copy constructor. | |
| ~PETScBaseMatrix () | |
| Destructor. | |
| std::size_t | size (std::size_t dim) const |
| Return number of rows (dim = 0) or columns (dim = 1) | |
| std::pair< std::int64_t, std::int64_t > | size () const |
| std::pair< std::int64_t, std::int64_t > | local_range (std::size_t dim) const |
| Return local range along dimension dim. | |
| void | init_vector (GenericVector &z, std::size_t dim) const |
| Mat | mat () const |
| Return PETSc Mat pointer. | |
| MPI_Comm | mpi_comm () const |
| Return the MPI communicator. | |
| Public Member Functions inherited from dolfin::PETScObject | |
| PETScObject () | |
| Constructor. Ensures that PETSc has been initialised. | |
| virtual | ~PETScObject () |
| Destructor. | |
| Public Member Functions inherited from dolfin::Variable | |
| Variable () | |
| Create unnamed variable. | |
| Variable (const std::string name, const std::string label) | |
| Create variable with given name and label. | |
| Variable (const Variable &variable) | |
| Copy constructor. | |
| virtual | ~Variable () |
| Destructor. | |
| const Variable & | operator= (const Variable &variable) |
| Assignment operator. | |
| void | rename (const std::string name, const std::string label) |
| Rename variable. | |
| std::string | name () const |
| Return name. | |
| std::string | label () const |
| Return label (description) | |
| std::size_t | id () const |
| Public Member Functions inherited from dolfin::LinearAlgebraObject | |
| virtual const LinearAlgebraObject * | instance () const |
| Return concrete instance / unwrap (const version) | |
| virtual LinearAlgebraObject * | instance () |
| Return concrete instance / unwrap (non-const version) | |
| virtual std::shared_ptr< const LinearAlgebraObject > | shared_instance () const |
| Return concrete shared ptr instance / unwrap (const version) | |
| virtual std::shared_ptr< LinearAlgebraObject > | shared_instance () |
| Return concrete shared ptr instance / unwrap (non-const version) | |
Protected Member Functions | |
| void | init_layout (const GenericVector &x, const GenericVector &y, GenericLinearOperator *wrapper) |
Protected Attributes | |
| GenericLinearOperator * | _wrapper |
| Protected Attributes inherited from dolfin::PETScBaseMatrix | |
| Mat | _matA |
Additional Inherited Members | |
| Static Public Member Functions inherited from dolfin::PETScObject | |
| static void | petsc_error (int error_code, std::string filename, std::string petsc_function) |
| Print error message for PETSc calls that return an error. | |
| Public Attributes inherited from dolfin::Variable | |
| Parameters | parameters |
| Parameters. | |
Detailed Description
PETSc version of the GenericLinearOperator.
Matrix-free interface for the solution of linear systems defined in terms of the action (matrix-vector product) of a linear operator.
Member Function Documentation
◆ init_layout()
|
protectedvirtual |
Initialize linear operator to match parallel layout of vectors x and y for product y = Ax. Needs to be implemented by backend.
Reimplemented from dolfin::GenericLinearOperator.
The documentation for this class was generated from the following files:
- /home/fenics/shared/dolfin/dolfin/la/PETScLinearOperator.h
- /home/fenics/shared/dolfin/dolfin/la/PETScLinearOperator.cpp
