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DOLFIN
DOLFIN C++ interface
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#include <PETScBaseMatrix.h>
Public Member Functions | |
| 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. | |
| virtual std::string | str (bool verbose) const |
| Return informal string representation (pretty-print) | |
 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 |
Protected Attributes | |
| 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. | |
This class is a base class for matrices that can be used in PETScKrylovSolver.
| void PETScBaseMatrix::init_vector | ( | GenericVector & | z, |
| std::size_t | dim | ||
| ) | const |
Initialize vector to be compatible with the matrix-vector product y = Ax. In the parallel case, both size and layout are important.
| z | (GenericVector&) Vector to initialise |
| dim | (std::size_t) The dimension (axis): dim = 0 –> z = y, dim = 1 –> z = x |
| std::pair< std::int64_t, std::int64_t > PETScBaseMatrix::size | ( | ) | const |
Return number of rows and columns (num_rows, num_cols). PETSc returns -1 if size has not been set.
1.8.11
