DUNE PDELab (git)
The indices present on remote processes. More...
#include <dune/common/parallel/remoteindices.hh>
Public Types | |
typedef T | ParallelIndexSet |
Type of the index set we use, e.g. ParallelLocalIndexSet. | |
typedef CollectiveIterator< T, A > | CollectiveIteratorT |
The type of the collective iterator over all remote indices. | |
typedef ParallelIndexSet::GlobalIndex | GlobalIndex |
The type of the global index. | |
typedef ParallelIndexSet::LocalIndex | LocalIndex |
The type of the local index. | |
typedef LocalIndex::Attribute | Attribute |
The type of the attribute. | |
typedef Dune::RemoteIndex< GlobalIndex, Attribute > | RemoteIndex |
Type of the remote indices we manage. | |
using | Allocator = typename std::allocator_traits< A >::template rebind_alloc< RemoteIndex > |
The type of the allocator for the remote index list. | |
typedef Dune::SLList< RemoteIndex, Allocator > | RemoteIndexList |
The type of the remote index list. | |
typedef std::map< int, std::pair< RemoteIndexList *, RemoteIndexList * > > | RemoteIndexMap |
The type of the map from rank to remote index list. | |
Public Member Functions | |
RemoteIndices (const ParallelIndexSet &source, const ParallelIndexSet &destination, const MPI_Comm &comm, const std::vector< int > &neighbours=std::vector< int >(), bool includeSelf=false) | |
Constructor. More... | |
void | setIncludeSelf (bool includeSelf) |
Tell whether sending from indices of the processor to other indices on the same processor is enabled even if the same indexset is used on both the sending and receiving side. More... | |
void | setIndexSets (const ParallelIndexSet &source, const ParallelIndexSet &destination, const MPI_Comm &comm, const std::vector< int > &neighbours=std::vector< int >()) |
Set the index sets and communicator we work with. More... | |
~RemoteIndices () | |
Destructor. | |
template<bool ignorePublic> | |
void | rebuild () |
Rebuilds the set of remote indices. More... | |
bool | isSynced () const |
Checks whether the remote indices are synced with the indexsets. More... | |
MPI_Comm | communicator () const |
Get the mpi communicator used. | |
template<bool mode, bool send> | |
RemoteIndexListModifier< T, A, mode > | getModifier (int process) |
Get a modifier for a remote index list. More... | |
const_iterator | find (int proc) const |
Find an iterator over the remote index lists of a specific process. More... | |
const_iterator | begin () const |
Get an iterator over all remote index lists. More... | |
const_iterator | end () const |
Get an iterator over all remote index lists. More... | |
template<bool send> | |
CollectiveIteratorT | iterator () const |
Get an iterator for collectively iterating over the remote indices of all remote processes. | |
void | free () |
Free the index lists. | |
int | neighbours () const |
Get the number of processors we share indices with. More... | |
const ParallelIndexSet & | sourceIndexSet () const |
Get the index set at the source. | |
const ParallelIndexSet & | destinationIndexSet () const |
Get the index set at destination. | |
Friends | |
template<class G , class T1 , class T2 > | |
void | fillIndexSetHoles (const G &graph, Dune::OwnerOverlapCopyCommunication< T1, T2 > &oocomm) |
Fills the holes in an index set. More... | |
Detailed Description
class Dune::RemoteIndices< T, A >
The indices present on remote processes.
To set up communication between the set of processes active in the communication every process needs to know which indices are also known to other processes and which attributes are attached to them on the remote side.
This information is managed by this class. The information can either be computed automatically calling rebuild (which requires information to be sent in a ring) or set up by hand using the RemoteIndexListModifiers returned by function getModifier(int).
- Template Parameters
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T The type of the underlying index set. A The type of the allocator to use.
Friends And Related Function Documentation
◆ fillIndexSetHoles
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friend |
Fills the holes in an index set.
In general the index set only needs to know those indices where communication my occur. In usual FE computations these are just those near the processor boundaries.
For the repartitioning we need to know all all indices for which data is stored. The missing indices will be created in this method.
- Parameters
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graph The graph to reparition. oocomm The communication information.
The documentation for this class was generated from the following file:
- dune/common/parallel/remoteindices.hh