#include <parallelcontext.h>

Collaboration diagram for oofem::ParallelContext:

Public Member Functions
	ParallelContext (EngngModel *e)
	~ParallelContext ()
void	init (int newDi)
int	giveNumberOfLocalEqs ()
int	giveNumberOfGlobalEqs ()
int	giveNumberOfNaturalEqs ()
Convenience functions for working with distributed arrays.
bool	isLocal (DofManager *dman)
double	localNorm (const FloatArray &src)
double	dotProduct (const FloatArray &a, const FloatArray &b)
double	localDotProduct (const FloatArray &a, const FloatArray &b)
double	accumulate (double local)
void	accumulate (const FloatArray &local, FloatArray &global)
Natural2GlobalOrdering *	giveN2Gmap ()
Natural2LocalOrdering *	giveN2Lmap ()

Protected Attributes
int	di
EngngModel *	emodel
Natural2GlobalOrdering	n2g
Natural2LocalOrdering	n2l

Detailed Description

This class provides an communication context for distributed memory parallelism. Tasks:

Keeping track of the parallel communicator.
Determining owner for shared dof managers.

Definition at line 54 of file parallelcontext.h.

Constructor & Destructor Documentation

◆ ParallelContext()

oofem::ParallelContext::ParallelContext ( EngngModel * e )

Creates a context belonging to a system of equations in a given engineering model.

Parameters

e	Engineering model to work with.

Definition at line 43 of file parallelcontext.C.

References emodel, n2g, and n2l.

◆ ~ParallelContext()

oofem::ParallelContext::~ParallelContext ( )

Definition at line 51 of file parallelcontext.C.

Member Function Documentation

◆ accumulate() [1/2]

void oofem::ParallelContext::accumulate	(	const FloatArray &	local,
		FloatArray &	global )

Accumulates the global value.

Todo: Why aren't we using the C++ MPI functions?

Definition at line 184 of file parallelcontext.C.

References emodel, oofem::FloatArray::givePointer(), oofem::FloatArray::giveSize(), and oofem::FloatArray::resize().

◆ accumulate() [2/2]

double oofem::ParallelContext::accumulate ( double local )

Accumulates the global value.

Definition at line 169 of file parallelcontext.C.

References emodel.

Referenced by oofem::NRSolver::checkConvergence(), oofem::StaggeredSolver::checkConvergenceDofIdArray(), dotProduct(), and oofem::ZZErrorEstimator::estimateError().

◆ dotProduct()

double oofem::ParallelContext::dotProduct	(	const FloatArray &	a,
		const FloatArray &	b )

Dot product for a distributed array. Common for convergence criterion and such.

References accumulate(), and localDotProduct().

◆ giveN2Gmap()

Natural2GlobalOrdering * oofem::ParallelContext::giveN2Gmap ( )

inline

Definition at line 112 of file parallelcontext.h.

References n2g.

Referenced by oofem::PetscSparseMtrx::buildInternalStructure(), and oofem::PetscSparseMtrx::scatterL2G().

◆ giveN2Lmap()

Natural2LocalOrdering * oofem::ParallelContext::giveN2Lmap ( )

inline

Definition at line 113 of file parallelcontext.h.

References n2l.

Referenced by oofem::PetscSparseMtrx::buildInternalStructure(), localDotProduct(), localNorm(), and oofem::PetscSparseMtrx::scatterL2G().

◆ giveNumberOfGlobalEqs()

int oofem::ParallelContext::giveNumberOfGlobalEqs ( )

Definition at line 91 of file parallelcontext.C.

References di, emodel, and n2g.

Referenced by init().

◆ giveNumberOfLocalEqs()

int oofem::ParallelContext::giveNumberOfLocalEqs ( )

Definition at line 75 of file parallelcontext.C.

References di, emodel, and n2g.

Referenced by init().

◆ giveNumberOfNaturalEqs()

int oofem::ParallelContext::giveNumberOfNaturalEqs ( )

Definition at line 106 of file parallelcontext.C.

References di, and emodel.

Referenced by oofem::PetscSparseMtrx::buildInternalStructure(), init(), and oofem::PetscSparseMtrx::scatterG2L().

◆ init()

void oofem::ParallelContext::init ( int newDi )

Initiates the mapping for given domain.

Parameters

di	Domain index.

Todo: Should we even do this here? The user of the requested ParallelContext will just set this manually instead.

Todo: This shouldn't be hardcoded to just the default numbering schemes. In fact, this shouldn't even have "prescribed" and "free", just use the given numbering.

Definition at line 55 of file parallelcontext.C.

References di, emodel, giveNumberOfGlobalEqs(), giveNumberOfLocalEqs(), giveNumberOfNaturalEqs(), n2g, and n2l.