dune-istl 2.8.0
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Nonoverlapping parallel preconditioner. More...
#include <dune/istl/novlpschwarz.hh>
Public Types | |
typedef P::domain_type | domain_type |
The domain type of the preconditioner. | |
typedef P::range_type | range_type |
The range type of the preconditioner. | |
typedef C | communication_type |
The type of the communication object. | |
typedef X::field_type | field_type |
The field type of the preconditioner. | |
Public Member Functions | |
NonoverlappingBlockPreconditioner (P &p, const communication_type &c) | |
Constructor. | |
NonoverlappingBlockPreconditioner (const std::shared_ptr< P > &p, const communication_type &c) | |
Constructor. | |
virtual void | pre (domain_type &x, range_type &b) |
Prepare the preconditioner. | |
virtual void | apply (domain_type &v, const range_type &d) |
Apply the preconditioner. | |
template<bool forward> | |
void | apply (X &v, const Y &d) |
Apply one step of the preconditioner to the system A(v)=d. | |
virtual void | post (domain_type &x) |
Clean up. | |
virtual SolverCategory::Category | category () const |
Category of the preconditioner (see SolverCategory::Category) | |
Nonoverlapping parallel preconditioner.
This is essentially a wrapper that take a sequential preconditoner. In each step the sequential preconditioner is applied and then all owner data points are updated on all other processes.
typedef C Dune::NonoverlappingBlockPreconditioner< C, P >::communication_type |
The type of the communication object.
typedef P::domain_type Dune::NonoverlappingBlockPreconditioner< C, P >::domain_type |
The domain type of the preconditioner.
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inherited |
The field type of the preconditioner.
typedef P::range_type Dune::NonoverlappingBlockPreconditioner< C, P >::range_type |
The range type of the preconditioner.
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inline |
Constructor.
constructor gets all parameters to operate the prec.
prec | The sequential preconditioner. |
c | The communication object for syncing owner and copy data points. (E.~g. OwnerOverlapCommunication ) |
Constructor.
constructor gets all parameters to operate the prec.
p | The sequential preconditioner. |
c | The communication object for syncing overlap and copy data points. (E.~g. OwnerOverlapCopyCommunication ) |
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inline |
Constructor.
constructor gets all parameters to operate the prec.
p | The sequential preconditioner. |
c | The communication object for syncing overlap and copy data points. (E.~g. OwnerOverlapCopyCommunication ) |
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inlinevirtual |
Apply the preconditioner.
Implements Dune::Preconditioner< P::domain_type, P::range_type >.
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inlinevirtual |
Apply one step of the preconditioner to the system A(v)=d.
On entry v=0 and d=b-A(x) (although this might not be computed in that way. On exit v contains the update, i.e one step computes
[out] | v | The update to be computed |
d | The current defect. |
Implements Dune::Preconditioner< P::domain_type, P::range_type >.
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inlinevirtual |
Category of the preconditioner (see SolverCategory::Category)
Implements Dune::Preconditioner< P::domain_type, P::range_type >.
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inlinevirtual |
Clean up.
Implements Dune::Preconditioner< P::domain_type, P::range_type >.
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inlinevirtual |
Prepare the preconditioner.
Implements Dune::Preconditioner< P::domain_type, P::range_type >.