DUNE-FEM (unstable)
globalindexset.hh
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1// SPDX-FileCopyrightText: Copyright © DUNE Project contributors, see file LICENSE.md in module root
116 /* A DataHandle class to calculate the minimum of a std::vector which is accompanied by an index set */
192 // Evil hack: I need to call subEntity, which needs the entity codimension as a static parameter.
194 PartitionType subPartitionType = SubPartitionTypeProvider<typename GridView::template Codim<0>::Entity, GridView::dimension>::get(*it,codim,i);
340 ? std::distance(gridview.template begin<0, Dune::Interior_Partition>(), gridview.template end<0, Dune::Interior_Partition>())
344 // without double, aka. redundant entities, on the interprocessor boundary via global reduce. */
347 /* communicate the number of locally owned entities to all other processes so that the respective offset
349 * for this; first, we gather the number of locally owned entities on the root process and, second, we
362 /* compute globally unique index over all processes; the idea of the algorithm is as follows: if
365 * by the process, it is assigned -1, which signals that this specific entity will get its global
CommDataHandleIF describes the features of a data handle for communication in parallel runs using the...
Definition: datahandleif.hh:78
void scatter(MessageBufferImp &buff, const EntityType &e, size_t n)
unpack data from message buffer to user.
Definition: datahandleif.hh:143
void gather(MessageBufferImp &buff, const EntityType &e) const
pack data from user to message buffer
Definition: datahandleif.hh:129
PartitionType partitionType() const
Partition type of this entity.
Definition: entity.hh:127
Calculate globally unique index over all processes in a Dune grid.
Definition: globalindexset.hh:63
Index subIndex(const Entity &entity, unsigned int i, unsigned int codim) const
Return the global index of a subentity of a given entity.
Definition: globalindexset.hh:474
MapId2Index globalIndex_
Stores global index of entities with entity's globally unique id as key.
Definition: globalindexset.hh:512
int Index
The number type used for global indices
Definition: globalindexset.hh:66
int nGlobalEntity_
Global number of entities, i.e. number of entities without rendundant entities on interprocessor boun...
Definition: globalindexset.hh:506
Index index(const Entity &entity) const
Return the global index of a given entity.
Definition: globalindexset.hh:453
unsigned int codim_
Codimension of the entities that we hold indices for.
Definition: globalindexset.hh:503
unsigned int size(unsigned int codim) const
Return the total number of entities over all processes that we have indices for.
Definition: globalindexset.hh:494
GlobalIndexSet(const GridView &gridview, int codim)
Constructor for a given GridView.
Definition: globalindexset.hh:326
typename GridFamily::Traits::Communication Communication
A type that is a model of Dune::Communication. It provides a portable way for communication on the se...
Definition: grid.hh:515
Describes the parallel communication interface class for MessageBuffers and DataHandles.
const IndexSet & indexSet() const
obtain the index set
Definition: gridview.hh:177
const Grid & grid() const
obtain a const reference to the underlying hierarchic grid
Definition: gridview.hh:166
int size(int codim) const
obtain number of entities in a given codimension
Definition: gridview.hh:183
auto communicate(CommDataHandleIF< DataHandleImp, DataType > &data, InterfaceType iftype, CommunicationDirection dir) const
Communicate data on this view.
Definition: gridview.hh:292
const Communication & comm() const
obtain communication object
Definition: gridview.hh:273
static constexpr int dimension
The dimension of the grid.
Definition: gridview.hh:134
PartitionType
Attributes used in the generic overlap model.
Definition: gridenums.hh:30
@ ForwardCommunication
communicate as given in InterfaceType
Definition: gridenums.hh:171
@ All_All_Interface
send all and receive all entities
Definition: gridenums.hh:91
Helpers for dealing with MPI.
constexpr std::bool_constant<((II==value)||...)> contains(std::integer_sequence< T, II... >, std::integral_constant< T, value >)
Checks whether or not a given sequence contains a value.
Definition: integersequence.hh:137
constexpr auto get(std::integer_sequence< T, II... >, std::integral_constant< std::size_t, pos >={})
Return the entry at position pos of the given sequence.
Definition: integersequence.hh:22
Helper class to provide access to subentity PartitionTypes with a run-time codimension.
Definition: globalindexset.hh:75
static PartitionType get(const Entity &entity, int codim, int i)
Get PartitionType of the i-th subentity of codimension 'codim' of entity 'entity'.
Definition: globalindexset.hh:78
std::size_t fixedSize
The number of data items per index if it is fixed, 0 otherwise.
Definition: variablesizecommunicator.hh:264
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