SAMRAI::mblk::MultiblockCoarsenSchedule< DIM > Class Template Reference

Class MultiblockCoarsenSchedule<DIM> encapsulates the AMR communication pattern to coarsen data from a finer level to a coarser level. More...

#include <source/multiblock/MultiblockCoarsenSchedule.h>

List of all members.

Public Member Functions
	MultiblockCoarsenSchedule (tbox::Pointer< MultiblockPatchLevel< DIM > > crse_level, tbox::Pointer< MultiblockPatchLevel< DIM > > fine_level, const tbox::Pointer< xfer::CoarsenClasses< DIM > > coarsen_classes, tbox::Pointer< MultiblockPatchHierarchy< DIM > > multiblock, MultiblockCoarsenPatchStrategy< DIM > *coarsen_strategy, MultiblockRefinePatchStrategy< DIM > *refine_strategy, bool fill_coarse_data)
	Constructor for coarsen schedule from fine level to coarse level.
virtual	~MultiblockCoarsenSchedule ()
	The virtual destructor for the schedule releases all internal storage.
void	coarsenData () const
	Execute the stored communication schedule and perform the data movement.
const tbox::Pointer< xfer::CoarsenClasses< DIM > > &	getEquivalenceClasses () const
	Return const reference to the pointer to coarsen equivalence classes used in schedule.

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Detailed Description

template<int DIM>
class SAMRAI::mblk::MultiblockCoarsenSchedule< DIM >

Class MultiblockCoarsenSchedule<DIM> encapsulates the AMR communication pattern to coarsen data from a finer level to a coarser level.

Typically, data is coarsened from the interiors of source patch components on the source patch level into interiors of destination patch components on the destination level. If a coarsen operator has a non-zero ghost cell width, then the source ghost cells must be filled before the coarsen schedule is executed. The communication schedule is executed by calling member function coarsenData().

Each schedule object is typically created by a coarsen algorithm and represents communication dependencies for a particular configuration of the AMR hierarchy. The communication schedule is only valid for that particular configuration and must be regenerated when the AMR patch hierarchy changes. However, as long as the patch levels involved in the creation of the schedule remain unchanged, the schedule may be used for multiple communication cycles. For more information about creating coarsen schedules, see the MultiblockCoarsenAlgorithm<DIM> header file.

See also:

mblk::MultiblockCoarsenAlgorithm

xfer::CoarsenAlgorithm

xfer::CoarsenPatchStrategy

xfer::CoarsenClasses

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Constructor & Destructor Documentation

template<int DIM> SAMRAI::mblk::MultiblockCoarsenSchedule< DIM >::MultiblockCoarsenSchedule (  tbox::Pointer< MultiblockPatchLevel< DIM > >  crse_level, tbox::Pointer< MultiblockPatchLevel< DIM > >  fine_level, const tbox::Pointer< xfer::CoarsenClasses< DIM > >  coarsen_classes, tbox::Pointer< MultiblockPatchHierarchy< DIM > >  multiblock, MultiblockCoarsenPatchStrategy< DIM > *  coarsen_strategy, MultiblockRefinePatchStrategy< DIM > *  refine_strategy, bool  fill_coarse_data )

Constructor for coarsen schedule from fine level to coarse level. Constructor to create a coarsen schedule that coarsens data from source patch data components on the fine level into the destination patch data components on the coarse level. In general, this constructor is called by a MultiblockCoarsenAlgorithm<DIM> object. For possible variations on data coarsening, see the Multiblock_CoarsenAlgorithm<DIM> class header information. If the coarsening operators require data from ghost cells, then the associated source patch data components must have a sufficient ghost cell width and and they must be filled with valid data before calling coarsenData(). Parameters: crse_level  Pointer to coarse (destination) patch level. fine_level  Pointer to fine (source) patch level. coarsen_classes  Pointer to structure containing patch data and operator information. In general, this is constructed by the calling xfer::CoarsenAlgorithm<DIM> object. multiblock  Multiblock hierarchy where the operation occurs coarsen_strategy  Pointer to a coarsen patch strategy object that provides user-defined coarsen operations. This pointer may be null, in which case no user-defined coarsen operations will be performed. refine_strategy  Pointer to a refine patch strategy object that provides user-defined coarsen operations. This is needed in specific cases where a user-defined coarsen operation requires data to be filled on the coarse scratch level prior to execution of the coarsening operator. If such functionality is not needed, set this pointer to null. fill_coarse_data  Boolean indicating whether coarse data should be filled before coarsening operations are done. When assertion checking is active, unrecoverable assertions will result if either patch level pointer, or the refine classes pointer, is null.

template<int DIM> SAMRAI::mblk::MultiblockCoarsenSchedule< DIM >::~MultiblockCoarsenSchedule (   )  [virtual]

The virtual destructor for the schedule releases all internal storage.

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Member Function Documentation

template<int DIM> void SAMRAI::mblk::MultiblockCoarsenSchedule< DIM >::coarsenData (   )  const

Execute the stored communication schedule and perform the data movement.

template<int DIM> const tbox::Pointer< xfer::CoarsenClasses< DIM > > & SAMRAI::mblk::MultiblockCoarsenSchedule< DIM >::getEquivalenceClasses (   )  const

Return const reference to the pointer to coarsen equivalence classes used in schedule.

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

• source/multiblock/MultiblockCoarsenSchedule.h
• source/multiblock/MultiblockCoarsenSchedule.C

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