GridTools::internal::DistributedComputePointLocationsInternal< dim, spacedim > Struct Template Reference

#include <deal.II/grid/grid_tools.h>

Public Member Functions
	DistributedComputePointLocationsInternal ()
void	finalize_setup ()

Public Attributes
unsigned int	n_searched_points
std::vector< std::tuple< std::pair< int, int >, unsigned int, unsigned int, Point< dim >, Point< spacedim >, unsigned int > >	send_components
std::vector< unsigned int >	send_ranks
std::vector< unsigned int >	send_ptrs
std::vector< std::tuple< unsigned int, unsigned int, unsigned int > >	recv_components
std::vector< unsigned int >	recv_ranks
std::vector< unsigned int >	recv_ptrs

Detailed Description

template<int dim, int spacedim>
struct GridTools::internal::DistributedComputePointLocationsInternal< dim, spacedim >

Data structure returned by GridTools::internal::distributed_compute_point_locations(). It provides information to perform GridTools::distributed_compute_point_locations() and to set up the communication pattern within Utilities::MPI::RemotePointEvaluation::reinit().

Note

The name of the fields are chosen with Utilities::MPI::RemotePointEvaluation in mind. Here, quantities are computed at specified arbitrary positioned points (and even on remote processes in the MPI universe) cell by cell and these values are sent to requesting processes, which receive the result and resort the result according to the points.

Definition at line 1226 of file grid_tools.h.

Constructor & Destructor Documentation

DistributedComputePointLocationsInternal()

template<int dim, int spacedim>

GridTools::internal::DistributedComputePointLocationsInternal< dim, spacedim >::DistributedComputePointLocationsInternal

Definition at line 6053 of file grid_tools.cc.

Member Function Documentation

finalize_setup()

template<int dim, int spacedim>

void GridTools::internal::DistributedComputePointLocationsInternal< dim, spacedim >::finalize_setup

Function which sets up send_ranks, send_ptrs, recv_ranks, and recv_ptrs from send_components, recv_components, and n_searched_points. Internally send_components and recv_components are sorted and enumerated.

Definition at line 6060 of file grid_tools.cc.

Member Data Documentation

n_searched_points

template<int dim, int spacedim>

unsigned int GridTools::internal::DistributedComputePointLocationsInternal< dim, spacedim >::n_searched_points

Number of searched point locations.

Definition at line 1242 of file grid_tools.h.

send_components

template<int dim, int spacedim>

std::vector<std::tuple<std::pair<int, int>, unsigned int, unsigned int, Point<dim>, Point<spacedim>, unsigned int> > GridTools::internal::DistributedComputePointLocationsInternal< dim, spacedim >::send_components

Information of each point on sending/evaluation side. The elements of the tuple are as follows: 0) cell level and index, 1) rank of the owning process, 2) local index of the owning process, 3) reference position, 4) real position, 5) permutation index within a send buffer.

Definition at line 1256 of file grid_tools.h.

send_ranks

template<int dim, int spacedim>

std::vector<unsigned int> GridTools::internal::DistributedComputePointLocationsInternal< dim, spacedim >::send_ranks

Ranks to send to.

Definition at line 1261 of file grid_tools.h.

send_ptrs

template<int dim, int spacedim>

std::vector<unsigned int> GridTools::internal::DistributedComputePointLocationsInternal< dim, spacedim >::send_ptrs

Pointers of ranges within a send buffer to be sent to the ranks specified by send_ranks. The size of the send buffer is given by send_ptrs.back().

Definition at line 1268 of file grid_tools.h.

recv_components

template<int dim, int spacedim>

std::vector<std::tuple<unsigned int, unsigned int, unsigned int> > GridTools::internal::DistributedComputePointLocationsInternal< dim, spacedim >::recv_components

Information of each received data value. The elements of the tuple are as follows: 0) rank of sender, 1) local index, 2) enumeration index.

Note

The vector is sorted according to 1), 0), 2).

To each point multiple data values might be associated to. This might be the case if a point coincides with a geometric entity (e.g., vertex) that is shared by multiple cells.

Definition at line 1281 of file grid_tools.h.

recv_ranks

template<int dim, int spacedim>

std::vector<unsigned int> GridTools::internal::DistributedComputePointLocationsInternal< dim, spacedim >::recv_ranks

Ranks from where data is received.

Definition at line 1286 of file grid_tools.h.

recv_ptrs

template<int dim, int spacedim>

std::vector<unsigned int> GridTools::internal::DistributedComputePointLocationsInternal< dim, spacedim >::recv_ptrs

Pointers of ranges within a receive buffer that are filled by ranks specified by recv_ranks. The size of the receive buffer is given by recv_ptrs.back().

Definition at line 1293 of file grid_tools.h.

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The documentation for this struct was generated from the following files:

• include/deal.II/base/mpi_remote_point_evaluation.h
• include/deal.II/grid/grid_tools.h
• source/grid/grid_tools.cc