This class takes in a bunch of points and finds the cell (provided as input) it lies in. In case the points dont lie in any of the cells, it sends the points to other processors. Similarly it receives points from other processors and then checks if any of them lies within its cell. It provides the real coordinates of points in each cell. More...

#include <MapPointsToCells.h>

Public Member Functions
	MapPointsToCells (const dftfe::uInt verbosity, const MPI_Comm &mpiComm)

void	init (std::vector< std::shared_ptr< const Cell< dim > > > srcCells, const std::vector< std::vector< double > > &targetPts, std::vector< std::vector< double > > &mapCellsToRealCoordinates, std::vector< std::vector< dftfe::uInt > > &mapCellLocalToProcLocal, std::pair< dftfe::uInt, dftfe::uInt > &locallyOwnedRange, std::vector< dftfe::uInt > &ghostGlobalIds, const double paramCoordsTol)
	The init().

Private Attributes
const MPI_Comm	d_mpiComm

int	d_numMPIRank

int	d_thisRank

dftfe::uInt	d_verbosity

Detailed Description

template<dftfe::uInt dim, dftfe::uInt M>
class dftfe::utils::MapPointsToCells< dim, M >

This class takes in a bunch of points and finds the cell (provided as input) it lies in. In case the points dont lie in any of the cells, it sends the points to other processors. Similarly it receives points from other processors and then checks if any of them lies within its cell. It provides the real coordinates of points in each cell.

Author: Vishal Subramanian, Bikash Kanungo

Constructor & Destructor Documentation

◆ MapPointsToCells()

template<dftfe::uInt dim, dftfe::uInt M>

dftfe::utils::MapPointsToCells< dim, M >::MapPointsToCells	(	const dftfe::uInt	verbosity,
		const MPI_Comm &	mpiComm )

Member Function Documentation

◆ init()

template<dftfe::uInt dim, dftfe::uInt M>

void dftfe::utils::MapPointsToCells< dim, M >::init	(	std::vector< std::shared_ptr< const Cell< dim > > >	srcCells,
		const std::vector< std::vector< double > > &	targetPts,
		std::vector< std::vector< double > > &	mapCellsToRealCoordinates,
		std::vector< std::vector< dftfe::uInt > > &	mapCellLocalToProcLocal,
		std::pair< dftfe::uInt, dftfe::uInt > &	locallyOwnedRange,
		std::vector< dftfe::uInt > &	ghostGlobalIds,
		const double	paramCoordsTol )

The init().

Parameters

[in]	srcCells	The cells assigned to this processor
[in]	targetPts	The points assigned to this processor
[out]	mapCellsToRealCoordinates	The Real coordinates of the points found in each cell.
[in]	locallyOwnedRange	The locally owned range for the target points
[out]	ghostGlobalIds	The global Ids of the points assigned to other processors but found within the cells assigned to this processor.
[in]	paramCoordsTol	Tol used to determine if the point is inside a cell