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 | |
PreconditionEisenstat ()=default | |
PreconditionEisenstat (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 Eisenstat preconditioner, which implements SSOR on the diagonal block owned by each processor.
See the comment in the base class PreconditionerBase for when this preconditioner may or may not work.
Definition at line 417 of file petsc_precondition.h.
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default |
Empty Constructor. You need to call initialize() before using this object.
PETScWrappers::PreconditionEisenstat::PreconditionEisenstat | ( | 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 318 of file petsc_precondition.cc.
void PETScWrappers::PreconditionEisenstat::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 327 of file petsc_precondition.cc.
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protected |
Store a copy of the flags for this particular preconditioner.
Definition at line 465 of file petsc_precondition.h.