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 | |
PreconditionILU ()=default | |
PreconditionILU (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 |
Protected Attributes | |
AdditionalData | additional_data |
Protected Attributes inherited from PETScWrappers::PreconditionerBase | |
PC | pc |
Mat | matrix |
Additional Inherited Members | |
Protected Member Functions inherited from PETScWrappers::PreconditionerBase | |
void | create_pc () |
operator Mat () const | |
A class that implements the interface to use the PETSc ILU preconditioner.
Definition at line 540 of file petsc_precondition.h.
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default |
Empty Constructor. You need to call initialize() before using this object.
PETScWrappers::PreconditionILU::PreconditionILU | ( | 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.
Definition at line 402 of file petsc_precondition.cc.
void PETScWrappers::PreconditionILU::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.
Definition at line 410 of file petsc_precondition.cc.
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protected |
Store a copy of the flags for this particular preconditioner.
Definition at line 587 of file petsc_precondition.h.