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Reference documentation for deal.II version GIT 29f9da0a34 2023-12-07 10:00:01+00:00
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#include <deal.II/base/mpi_remote_point_evaluation.h>
Classes | |
class | CellData |
Public Member Functions | |
RemotePointEvaluation (const double tolerance=1e-6, const bool enforce_unique_mapping=false, const unsigned int rtree_level=0, const std::function< std::vector< bool >()> &marked_vertices={}) | |
~RemotePointEvaluation () | |
void | reinit (const std::vector< Point< spacedim >> &points, const Triangulation< dim, spacedim > &tria, const Mapping< dim, spacedim > &mapping) |
void | reinit (const GridTools::internal::DistributedComputePointLocationsInternal< dim, spacedim > &data, const Triangulation< dim, spacedim > &tria, const Mapping< dim, spacedim > &mapping) |
const CellData & | get_cell_data () const |
template<typename T > | |
void | evaluate_and_process (std::vector< T > &output, std::vector< T > &buffer, const std::function< void(const ArrayView< T > &, const CellData &)> &evaluation_function) const |
template<typename T > | |
std::vector< T > | evaluate_and_process (const std::function< void(const ArrayView< T > &, const CellData &)> &evaluation_function) const |
template<typename T > | |
void | process_and_evaluate (const std::vector< T > &input, std::vector< T > &buffer, const std::function< void(const ArrayView< const T > &, const CellData &)> &evaluation_function) const |
template<typename T > | |
void | process_and_evaluate (const std::vector< T > &input, const std::function< void(const ArrayView< const T > &, const CellData &)> &evaluation_function) const |
const std::vector< unsigned int > & | get_point_ptrs () const |
bool | is_map_unique () const |
bool | all_points_found () const |
bool | point_found (const unsigned int i) const |
const Triangulation< dim, spacedim > & | get_triangulation () const |
const Mapping< dim, spacedim > & | get_mapping () const |
bool | is_ready () const |
Private Attributes | |
const double | tolerance |
const bool | enforce_unique_mapping |
const unsigned int | rtree_level |
const std::function< std::vector< bool >)> | marked_vertices |
boost::signals2::connection | tria_signal |
bool | ready_flag |
SmartPointer< const Triangulation< dim, spacedim > > | tria |
SmartPointer< const Mapping< dim, spacedim > > | mapping |
bool | unique_mapping |
bool | all_points_found_flag |
std::vector< unsigned int > | point_ptrs |
std::vector< unsigned int > | recv_permutation |
std::vector< unsigned int > | recv_ptrs |
std::vector< unsigned int > | recv_ranks |
std::unique_ptr< CellData > | cell_data |
std::vector< unsigned int > | send_permutation |
std::vector< unsigned int > | send_ranks |
std::vector< unsigned int > | send_ptrs |
Helper class to access values on non-matching grids.
Definition at line 53 of file mpi_remote_point_evaluation.h.
Utilities::MPI::RemotePointEvaluation< dim, spacedim >::RemotePointEvaluation | ( | const double | tolerance = 1e-6 , |
const bool | enforce_unique_mapping = false , |
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const unsigned int | rtree_level = 0 , |
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const std::function< std::vector< bool >()> & | marked_vertices = {} |
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) |
Constructor.
tolerance | Tolerance in terms of unit cell coordinates for determining all cells around a point passed to the class during reinit(). Depending on the problem, it might be necessary to adjust the tolerance in order to be able to identify a cell. Floating point arithmetic implies that a point will, in general, not lie exactly on a vertex, edge, or face. |
enforce_unique_mapping | Enforce unique mapping, i.e., (one-to-one) relation of points and cells. |
rtree_level | RTree level to be used during the construction of the bounding boxes. |
marked_vertices | Function that marks relevant vertices to make search of active cells around point more efficient. |
Definition at line 39 of file mpi_remote_point_evaluation.cc.
Utilities::MPI::RemotePointEvaluation< dim, spacedim >::~RemotePointEvaluation |
Destructor.
Definition at line 54 of file mpi_remote_point_evaluation.cc.
void Utilities::MPI::RemotePointEvaluation< dim, spacedim >::reinit | ( | const std::vector< Point< spacedim >> & | points, |
const Triangulation< dim, spacedim > & | tria, | ||
const Mapping< dim, spacedim > & | mapping | ||
) |
Set up internal data structures and communication pattern based on a list of points points
and mesh description (tria
and mapping
).
Definition at line 64 of file mpi_remote_point_evaluation.cc.
void Utilities::MPI::RemotePointEvaluation< dim, spacedim >::reinit | ( | const GridTools::internal::DistributedComputePointLocationsInternal< dim, spacedim > & | data, |
const Triangulation< dim, spacedim > & | tria, | ||
const Mapping< dim, spacedim > & | mapping | ||
) |
Set up internal data structures and communication pattern based on GridTools::internal::DistributedComputePointLocationsInternal.
This function is called internally by the reinit() function above. Having it as a separate function makes it possible to set up the class if it is known in which cells corresponding reference points are located (e.g. if intersections of cells are known).
Definition at line 113 of file mpi_remote_point_evaluation.cc.
const RemotePointEvaluation< dim, spacedim >::CellData & Utilities::MPI::RemotePointEvaluation< dim, spacedim >::get_cell_data |
Return internal data structure storing the data of points positioned in cells.
Definition at line 259 of file mpi_remote_point_evaluation.cc.
void Utilities::MPI::RemotePointEvaluation< dim, spacedim >::evaluate_and_process | ( | std::vector< T > & | output, |
std::vector< T > & | buffer, | ||
const std::function< void(const ArrayView< T > &, const CellData &)> & | evaluation_function | ||
) | const |
Evaluate function evaluation_function
in the given points and triangulation. The result is stored in output
.
Definition at line 434 of file mpi_remote_point_evaluation.h.
std::vector< T > Utilities::MPI::RemotePointEvaluation< dim, spacedim >::evaluate_and_process | ( | const std::function< void(const ArrayView< T > &, const CellData &)> & | evaluation_function | ) | const |
Same as above but with the result provided as return value and without external allocation of a user-provided buffer.
Definition at line 593 of file mpi_remote_point_evaluation.h.
void Utilities::MPI::RemotePointEvaluation< dim, spacedim >::process_and_evaluate | ( | const std::vector< T > & | input, |
std::vector< T > & | buffer, | ||
const std::function< void(const ArrayView< const T > &, const CellData &)> & | evaluation_function | ||
) | const |
This method is the inverse of the method evaluate_and_process(). It makes the data at the points, provided by input
, available in the function evaluation_function
.
Definition at line 610 of file mpi_remote_point_evaluation.h.
void Utilities::MPI::RemotePointEvaluation< dim, spacedim >::process_and_evaluate | ( | const std::vector< T > & | input, |
const std::function< void(const ArrayView< const T > &, const CellData &)> & | evaluation_function | ||
) | const |
Same as above but without external allocation of a user-provided buffer.
Definition at line 785 of file mpi_remote_point_evaluation.h.
const std::vector< unsigned int > & Utilities::MPI::RemotePointEvaluation< dim, spacedim >::get_point_ptrs |
Return a CRS-like data structure to determine the position of the result corresponding a point and the amount.
Definition at line 268 of file mpi_remote_point_evaluation.cc.
bool Utilities::MPI::RemotePointEvaluation< dim, spacedim >::is_map_unique |
Return if points and cells have a one-to-one relation. This is not the case if a point is not owned by any cell (the point is outside of the domain) or if multiple cells own the point (the point is positioned on a geometric entity shared by neighboring cells).
Definition at line 277 of file mpi_remote_point_evaluation.cc.
bool Utilities::MPI::RemotePointEvaluation< dim, spacedim >::all_points_found |
Return if all points could be found in the domain.
Definition at line 286 of file mpi_remote_point_evaluation.cc.
bool Utilities::MPI::RemotePointEvaluation< dim, spacedim >::point_found | ( | const unsigned int | i | ) | const |
Return if point i
could be found in the domain.
Definition at line 295 of file mpi_remote_point_evaluation.cc.
const Triangulation< dim, spacedim > & Utilities::MPI::RemotePointEvaluation< dim, spacedim >::get_triangulation |
Return the Triangulation object used during reinit().
Definition at line 310 of file mpi_remote_point_evaluation.cc.
const Mapping< dim, spacedim > & Utilities::MPI::RemotePointEvaluation< dim, spacedim >::get_mapping |
Return the Mapping object used during reinit().
Definition at line 319 of file mpi_remote_point_evaluation.cc.
bool Utilities::MPI::RemotePointEvaluation< dim, spacedim >::is_ready |
Return if the internal data structures have been set up and if yes whether they are still valid (and not invalidated due to changes of the Triangulation).
Definition at line 328 of file mpi_remote_point_evaluation.cc.
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Tolerance to be used while determining the surrounding cells of a point.
Definition at line 318 of file mpi_remote_point_evaluation.h.
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Enforce unique mapping, i.e., (one-to-one) relation of points and cells.
Definition at line 324 of file mpi_remote_point_evaluation.h.
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RTree level to be used during the construction of the bounding boxes.
Definition at line 329 of file mpi_remote_point_evaluation.h.
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Function that marks relevant vertices to make search of active cells around point more efficient.
Definition at line 335 of file mpi_remote_point_evaluation.h.
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Storage for the status of the triangulation signal.
Definition at line 340 of file mpi_remote_point_evaluation.h.
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Flag indicating if the reinit() function has been called and if yes the triangulation has not been modified since then (potentially invalidating the communication pattern).
Definition at line 347 of file mpi_remote_point_evaluation.h.
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Reference to the Triangulation object used during reinit().
Definition at line 352 of file mpi_remote_point_evaluation.h.
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Reference to the Mapping object used during reinit().
Definition at line 357 of file mpi_remote_point_evaluation.h.
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(One-to-one) relation of points and cells.
Definition at line 362 of file mpi_remote_point_evaluation.h.
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Cache if all points passed in during reinit() have been found.
Definition at line 367 of file mpi_remote_point_evaluation.h.
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Since for each point multiple or no results can be available, the pointers in this vector indicate the first and last entry associated with a point in a CRS-like fashion.
Definition at line 374 of file mpi_remote_point_evaluation.h.
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Permutation index within a recv buffer.
Definition at line 379 of file mpi_remote_point_evaluation.h.
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Pointers of ranges within a receive buffer that are filled by ranks specified by recv_ranks.
Definition at line 385 of file mpi_remote_point_evaluation.h.
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Ranks from where data is received.
Definition at line 390 of file mpi_remote_point_evaluation.h.
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Point data sorted according to cells so that evaluation (incl. reading of degrees of freedoms) needs to be performed only once per cell.
Definition at line 396 of file mpi_remote_point_evaluation.h.
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Permutation index within a send buffer.
Definition at line 401 of file mpi_remote_point_evaluation.h.
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Ranks to send to.
Definition at line 406 of file mpi_remote_point_evaluation.h.
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Pointers of ranges within a send buffer to be sent to the ranks specified by send_ranks.
Definition at line 412 of file mpi_remote_point_evaluation.h.