Reference documentation for deal.II version 9.2.0
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#include <deal.II/lac/petsc_precondition.h>
Classes | |
struct | AdditionalData |
Public Member Functions | |
PreconditionNone ()=default | |
PreconditionNone (const MatrixBase &matrix, const AdditionalData &additional_data=AdditionalData()) | |
void | initialize (const MatrixBase &matrix, const AdditionalData &additional_data=AdditionalData()) |
Public Member Functions inherited from PETScWrappers::PreconditionerBase | |
PreconditionerBase () | |
virtual | ~PreconditionerBase () |
void | clear () |
void | vmult (VectorBase &dst, const VectorBase &src) const |
void | Tvmult (VectorBase &dst, const VectorBase &src) const |
const PC & | get_pc () const |
Private Attributes | |
AdditionalData | additional_data |
Additional Inherited Members | |
Protected Member Functions inherited from PETScWrappers::PreconditionerBase | |
void | create_pc () |
operator Mat () const | |
Protected Attributes inherited from PETScWrappers::PreconditionerBase | |
PC | pc |
Mat | matrix |
A class that implements a non-preconditioned method.
Definition at line 928 of file petsc_precondition.h.
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default |
Empty Constructor. You need to call initialize() before using this object.
PETScWrappers::PreconditionNone::PreconditionNone | ( | const MatrixBase & | matrix, |
const AdditionalData & | additional_data = AdditionalData() |
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Constructor. Take the matrix which is used to form the preconditioner, and additional flags if there are any. The matrix is completely ignored in computations.
Definition at line 670 of file petsc_precondition.cc.
void PETScWrappers::PreconditionNone::initialize | ( | const MatrixBase & | matrix, |
const AdditionalData & | additional_data = AdditionalData() |
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Initialize the preconditioner object and calculate all data that is necessary for applying it in a solver. This function is automatically called when calling the constructor with the same arguments and is only used if you create the preconditioner without arguments. The matrix is completely ignored in computations.
Definition at line 678 of file petsc_precondition.cc.
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private |
Store a copy of the flags for this particular preconditioner.
Definition at line 967 of file petsc_precondition.h.