Opm::ParallelRestrictedOverlappingSchwarz< Range, Domain, ParallelInfo, SeqPreconditioner > Class Template Reference

Block parallel preconditioner. More...

#include <ParallelRestrictedAdditiveSchwarz.hpp>

List of all members.

Public Types

enum  { category = Dune::SolverCategory::overlapping }
typedef Domain domain_type
 The domain type of the preconditioner.
typedef Range range_type
 The range type of the preconditioner.
typedef Domain::field_type field_type
 The field type of the preconditioner.
typedef ParallelInfo communication_type
 The type of the communication object.

Public Member Functions

 ParallelRestrictedOverlappingSchwarz (SeqPreconditioner &p, const communication_type &c)
 Constructor.
virtual void pre (Domain &x, Range &b)
 Prepare the preconditioner.
virtual void apply (Domain &v, const Range &d)
 Apply the preconditioner.
template<bool forward>
void apply (Domain &v, const Range &d)
virtual void post (Range &x)
 Clean up.

Friends

class Dune::Amg::ConstructionTraits< ParallelRestrictedOverlappingSchwarz< Range, Domain, ParallelInfo, SeqPreconditioner > >

Detailed Description

template<class Range, class Domain, class ParallelInfo, class SeqPreconditioner = Dune::Preconditioner<Range,Domain>>
class Opm::ParallelRestrictedOverlappingSchwarz< Range, Domain, ParallelInfo, SeqPreconditioner >

Block parallel preconditioner.

This is essentially a wrapper that takes a sequential preconditioner. In each step the sequential preconditioner is applied to the whole subdomain and then all owner data points are updated on all other processes from the processor that knows the complete matrix row for this data point (in dune-istl speak that is the one that owns the data).

Note that this is different from the usual approach in dune-istl where the application of the sequential preconditioner only takes place on the (owner) partition of the process disregarding any overlap/ghost region.

For more information see https://www.cs.colorado.edu/~cai/papers/rash.pdf

Template Parameters:
Domain The type of the Vector representing the domain.
Range The type of the Vector representing the range.
ParallelInfo The type of the parallel information object used, e.g. Dune::OwnerOverlapCommunication
SeqPreconditioner The underlying sequential preconditioner to use.

Member Enumeration Documentation

template<class Range , class Domain , class ParallelInfo , class SeqPreconditioner = Dune::Preconditioner<Range,Domain>>
anonymous enum
Enumerator:
category 

The category the precondtioner is part of.


Constructor & Destructor Documentation

template<class Range , class Domain , class ParallelInfo , class SeqPreconditioner = Dune::Preconditioner<Range,Domain>>
Opm::ParallelRestrictedOverlappingSchwarz< Range, Domain, ParallelInfo, SeqPreconditioner >::ParallelRestrictedOverlappingSchwarz ( SeqPreconditioner &  p,
const communication_type c 
) [inline]

Constructor.

constructor gets all parameters to operate the prec.

Parameters:
p The sequential preconditioner.
c The communication object for syncing overlap and copy data points. (E.~g. OwnerOverlapCommunication )

Member Function Documentation

template<class Range , class Domain , class ParallelInfo , class SeqPreconditioner = Dune::Preconditioner<Range,Domain>>
virtual void Opm::ParallelRestrictedOverlappingSchwarz< Range, Domain, ParallelInfo, SeqPreconditioner >::apply ( Domain &  v,
const Range &  d 
) [inline, virtual]

Apply the preconditioner.

template<class Range , class Domain , class ParallelInfo , class SeqPreconditioner = Dune::Preconditioner<Range,Domain>>
virtual void Opm::ParallelRestrictedOverlappingSchwarz< Range, Domain, ParallelInfo, SeqPreconditioner >::post ( Range &  x  )  [inline, virtual]

Clean up.

template<class Range , class Domain , class ParallelInfo , class SeqPreconditioner = Dune::Preconditioner<Range,Domain>>
virtual void Opm::ParallelRestrictedOverlappingSchwarz< Range, Domain, ParallelInfo, SeqPreconditioner >::pre ( Domain &  x,
Range &  b 
) [inline, virtual]

Prepare the preconditioner.


The documentation for this class was generated from the following file:

Generated on 26 Mar 2018 by  doxygen 1.6.1