A direct solver based on a factorization into lower and upper triangular factors (with an optional diagonal scaling).
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| std::unique_ptr< LinOp > | transpose () const override |
| | Returns a LinOp representing the transpose of the Transposable object.
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| std::unique_ptr< LinOp > | conj_transpose () const override |
| | Returns a LinOp representing the conjugate transpose of the Transposable object.
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const parameters_type & | get_parameters () const |
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| Direct (const Direct &) |
| | Creates a copy of the solver.
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| Direct (Direct &&) |
| | Moves from the given solver, leaving it empty.
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Direct & | operator= (const Direct &) |
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Direct & | operator= (Direct &&) |
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const Direct< ValueType, IndexType > * | apply (ptr_param< const LinOp > b, ptr_param< LinOp > x) const |
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std::unique_ptr< Direct< ValueType, IndexType > > | create_default (std::shared_ptr< const Executor > exec) const |
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std::unique_ptr< Direct< ValueType, IndexType > > | clone (std::shared_ptr< const Executor > exec) const |
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Direct< ValueType, IndexType > * | copy_from (const PolymorphicObject *other) |
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Direct< ValueType, IndexType > * | move_from (ptr_param< PolymorphicObject > other) |
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Direct< ValueType, IndexType > * | clear () |
| LinOp * | apply (ptr_param< const LinOp > b, ptr_param< LinOp > x) |
| | Applies a linear operator to a vector (or a sequence of vectors).
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| const LinOp * | apply (ptr_param< const LinOp > b, ptr_param< LinOp > x) const |
| LinOp * | apply (ptr_param< const LinOp > alpha, ptr_param< const LinOp > b, ptr_param< const LinOp > beta, ptr_param< LinOp > x) |
| | Performs the operation x = alpha * op(b) + beta * x.
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| const LinOp * | apply (ptr_param< const LinOp > alpha, ptr_param< const LinOp > b, ptr_param< const LinOp > beta, ptr_param< LinOp > x) const |
| const dim< 2 > & | get_size () const noexcept |
| | Returns the size of the operator.
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| virtual bool | apply_uses_initial_guess () const |
| | Returns true if the linear operator uses the data given in x as an initial guess.
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| LinOp & | operator= (const LinOp &)=default |
| | Copy-assigns a LinOp.
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| LinOp & | operator= (LinOp &&other) |
| | Move-assigns a LinOp.
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| | LinOp (const LinOp &)=default |
| | Copy-constructs a LinOp.
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| | LinOp (LinOp &&other) |
| | Move-constructs a LinOp.
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std::unique_ptr< LinOp > | create_default (std::shared_ptr< const Executor > exec) const |
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std::unique_ptr< LinOp > | clone (std::shared_ptr< const Executor > exec) const |
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LinOp * | copy_from (const PolymorphicObject *other) |
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LinOp * | move_from (ptr_param< PolymorphicObject > other) |
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LinOp * | clear () |
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PolymorphicObject & | operator= (const PolymorphicObject &) |
| std::unique_ptr< PolymorphicObject > | create_default (std::shared_ptr< const Executor > exec) const |
| | Creates a new "default" object of the same dynamic type as this object.
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| std::unique_ptr< PolymorphicObject > | create_default () const |
| | Creates a new "default" object of the same dynamic type as this object.
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| std::unique_ptr< PolymorphicObject > | clone (std::shared_ptr< const Executor > exec) const |
| | Creates a clone of the object.
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| std::unique_ptr< PolymorphicObject > | clone () const |
| | Creates a clone of the object.
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| PolymorphicObject * | copy_from (const PolymorphicObject *other) |
| | Copies another object into this object.
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| template<typename Derived, typename Deleter> |
| std::enable_if_t< std::is_base_of< PolymorphicObject, std::decay_t< Derived > >::value, PolymorphicObject > * | copy_from (std::unique_ptr< Derived, Deleter > &&other) |
| | Moves another object into this object.
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| template<typename Derived, typename Deleter> |
| std::enable_if_t< std::is_base_of< PolymorphicObject, std::decay_t< Derived > >::value, PolymorphicObject > * | copy_from (const std::unique_ptr< Derived, Deleter > &other) |
| | Copies another object into this object.
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| PolymorphicObject * | copy_from (const std::shared_ptr< const PolymorphicObject > &other) |
| | Copies another object into this object.
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| PolymorphicObject * | move_from (ptr_param< PolymorphicObject > other) |
| | Moves another object into this object.
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| PolymorphicObject * | clear () |
| | Transforms the object into its default state.
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| std::shared_ptr< const Executor > | get_executor () const noexcept |
| | Returns the Executor of the object.
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| void | add_logger (std::shared_ptr< const Logger > logger) override |
| | Adds a new logger to the list of subscribed loggers.
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| void | remove_logger (const Logger *logger) override |
| | Removes a logger from the list of subscribed loggers.
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| const std::vector< std::shared_ptr< const Logger > > & | get_loggers () const override |
| | Returns the vector containing all loggers registered at this object.
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| void | clear_loggers () override |
| | Remove all loggers registered at this object.
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void | remove_logger (ptr_param< const Logger > logger) |
| void | convert_to (result_type *result) const override |
| void | move_to (result_type *result) override |
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EnableSolverBase & | operator= (const EnableSolverBase &other) |
| | Creates a shallow copy of the provided system matrix, clones it onto this executor if executors don't match.
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int | get_num_workspace_ops () const override |
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std::vector< std::string > | get_workspace_op_names () const override |
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std::vector< int > | get_workspace_scalars () const override |
| | Returns the IDs of all scalars (workspace vectors with system dimension-independent size, usually 1 x num_rhs).
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std::vector< int > | get_workspace_vectors () const override |
| | Returns the IDs of all vectors (workspace vectors with system dimension-dependent size, usually system_matrix_size x num_rhs).
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| std::shared_ptr< const factorization::Factorization< ValueType, IndexType > > | get_system_matrix () const |
| | Returns the system matrix, with its concrete type, used by the solver.
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template<typename ValueType, typename IndexType>
class gko::experimental::solver::Direct< ValueType, IndexType >
A direct solver based on a factorization into lower and upper triangular factors (with an optional diagonal scaling).
The solver is built from the Factorization returned by the provided LinOpFactory.
- Template Parameters
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| ValueType | the type used to store values of the system matrix |
| IndexType | the type used to store sparsity pattern indices of the system matrix |