DistributedVectorFactory Class Reference

#include <DistributedVectorFactory.hpp>

Collaboration diagram for DistributedVectorFactory:

Public Member Functions
	DistributedVectorFactory (Vec vec)
	DistributedVectorFactory (unsigned size, PetscInt local=PETSC_DECIDE)
	DistributedVectorFactory (DistributedVectorFactory *pOriginalFactory)
	DistributedVectorFactory (unsigned lo, unsigned hi, unsigned size, unsigned numProcs=PetscTools::GetNumProcs())
	~DistributedVectorFactory ()
Vec	CreateVec ()
Vec	CreateVec (unsigned stride)
DistributedVector	CreateDistributedVector (Vec vec)
bool	IsGlobalIndexLocal (unsigned globalIndex)
unsigned	GetLocalOwnership () const
unsigned	GetHigh () const
unsigned	GetLow () const
unsigned	GetProblemSize () const
unsigned	GetNumProcs () const
DistributedVectorFactory *	GetOriginalFactory ()
void	SetOriginalFactory (DistributedVectorFactory *pOriginalFactory)
void	SetFromFactory (DistributedVectorFactory *pFactory)
std::vector< unsigned > &	rGetGlobalLows ()
Static Public Member Functions
static void	SetCheckNumberOfProcessesOnLoad (bool checkNumberOfProcessesOnLoad=true)
static bool	CheckNumberOfProcessesOnLoad ()
Private Member Functions
void	CheckForPetsc ()
void	CalculateOwnership (Vec vec)
template<class Archive >
void	serialize (Archive &archive, const unsigned int version)
Private Attributes
unsigned	mLo
unsigned	mHi
unsigned	mProblemSize
unsigned	mNumProcs
bool	mPetscStatusKnown
std::vector< unsigned >	mGlobalLows
DistributedVectorFactory *	mpOriginalFactory
Static Private Attributes
static bool	msCheckNumberOfProcessesOnLoad = true
Friends
class	boost::serialization::access

Detailed Description

Factory for creating PETSc vectors distributed across processes.

Replacement for the vector creation portions of DistributedVector (which was implemented using static methods and data), the factory class allows several patterns of PETSc vector length (and distributions among processes) to co-exist.

All vectors created by a factory instance will have the same base size and parallelisation pattern.

Definition at line 50 of file DistributedVectorFactory.hpp.

Constructor & Destructor Documentation

DistributedVectorFactory::DistributedVectorFactory ( Vec vec )

Set the problem with an existing PETSc vector -- must have stride=1.

Parameters:

vec

is a PETSc vector which we want to use as the pattern for future vectors produced by this factory

Definition at line 73 of file DistributedVectorFactory.cpp.

References CalculateOwnership().

DistributedVectorFactory::DistributedVectorFactory	(	unsigned	size,
		PetscInt	local = `PETSC_DECIDE`
	)

Set the problem size specifying distribution over local processor.

Parameters:

	size	the problem size
	local	defaults to PETSc's default

Definition at line 80 of file DistributedVectorFactory.cpp.

References CalculateOwnership(), CheckForPetsc(), and CreateVec().

DistributedVectorFactory::DistributedVectorFactory ( DistributedVectorFactory * pOriginalFactory )

Constructor for use in archiving. Note that this constructor is only called when the number of processes is different from the original. Therefore, the orignal local node ownership cannot be used, and a new even partition will be applied.

Parameters:

pOriginalFactory

see mpOriginalFactory

Definition at line 92 of file DistributedVectorFactory.cpp.

References CalculateOwnership(), CreateVec(), GetProblemSize(), and mpOriginalFactory.

DistributedVectorFactory::DistributedVectorFactory	(	unsigned	lo,
		unsigned	hi,
		unsigned	size,
		unsigned	numProcs = `PetscTools::GetNumProcs()`
	)

Constructor intended for use in archiving. Allows complete manual specification of the factory.

Parameters:

	lo	first index owned by this process
	hi	one beyond last index owned by this process
	size	total size of vectors
	numProcs	the number of processes expected (defaults to the current number)

Definition at line 108 of file DistributedVectorFactory.cpp.

References CheckForPetsc().

DistributedVectorFactory::~DistributedVectorFactory ( )

Destructor deletes mpOriginalFactory if it exists.

Definition at line 121 of file DistributedVectorFactory.cpp.

References mpOriginalFactory.

Member Function Documentation

void DistributedVectorFactory::CalculateOwnership ( Vec vec ) [private]

Helper method for the constructors.

Parameters:

vec

the sample PETSc vector from which to calculate ownerships

Definition at line 36 of file DistributedVectorFactory.cpp.

References CheckForPetsc(), GetNumProcs(), mGlobalLows, mHi, mLo, mNumProcs, mPetscStatusKnown, and mProblemSize.

Referenced by DistributedVectorFactory().

void DistributedVectorFactory::CheckForPetsc ( ) [private]

Double check (in debug code) that PETSc has been initialised properly.

Definition at line 126 of file DistributedVectorFactory.cpp.

References mPetscStatusKnown.

Referenced by CalculateOwnership(), and DistributedVectorFactory().

static bool DistributedVectorFactory::CheckNumberOfProcessesOnLoad ( ) [inline, static]

Determine whether, when loading an instance from an archive, to check that the current number of processes matches that used in creating the archive.

Definition at line 237 of file DistributedVectorFactory.hpp.

References msCheckNumberOfProcessesOnLoad.

DistributedVector DistributedVectorFactory::CreateDistributedVector ( Vec vec )

Create a distributed vector which wraps a given petsc vector.

Parameters:

vec

is the vector

Returns:: the distributed vector

Definition at line 159 of file DistributedVectorFactory.cpp.

Vec DistributedVectorFactory::CreateVec ( unsigned stride )

Create a striped PETSc vector of size: stride * problem size.

Parameters:

stride

Definition at line 152 of file DistributedVectorFactory.cpp.

References mHi, mLo, and mProblemSize.

Vec DistributedVectorFactory::CreateVec ( )

Create a PETSc vector of the problem size.

Returns:: the created vector

Definition at line 146 of file DistributedVectorFactory.cpp.

References mHi, mLo, and mProblemSize.

Referenced by ExtendedBidomainProblem< DIM >::CreateInitialCondition(), AbstractCardiacProblem< ELEMENT_DIM, SPACE_DIM, PROBLEM_DIM >::CreateInitialCondition(), DistributedVectorFactory(), AbstractExtendedBidomainSolver< ELEMENT_DIM, SPACE_DIM >::GenerateNullBasis(), AbstractBidomainSolver< ELEMENT_DIM, SPACE_DIM >::GenerateNullBasis(), Hdf5ToTxtConverter< ELEMENT_DIM, SPACE_DIM >::Hdf5ToTxtConverter(), Hdf5ToVtkConverter< ELEMENT_DIM, SPACE_DIM >::Hdf5ToVtkConverter(), ParallelColumnDataWriter::PutVectorStripe(), Hdf5ToMeshalyzerConverter< ELEMENT_DIM, SPACE_DIM >::Write(), and Hdf5ToCmguiConverter< ELEMENT_DIM, SPACE_DIM >::Write().

unsigned DistributedVectorFactory::GetHigh ( ) const [inline]

Returns:: mHi - The next index above the top one owned by the process.

Definition at line 193 of file DistributedVectorFactory.hpp.

References mHi.

unsigned DistributedVectorFactory::GetLocalOwnership ( ) const [inline]

Returns:: The number of elements in the vector owned by the local process.

Definition at line 185 of file DistributedVectorFactory.hpp.

References mHi, and mLo.

Referenced by AbstractCardiacTissue< ELEMENT_DIM, SPACE_DIM >::AbstractCardiacTissue(), DistributedTetrahedralMesh< ELEMENT_DIM, SPACE_DIM >::ConstructCuboid(), DistributedTetrahedralMesh< ELEMENT_DIM, SPACE_DIM >::ConstructLinearMesh(), DistributedTetrahedralMesh< ELEMENT_DIM, SPACE_DIM >::ConstructRectangularMesh(), ExtendedBidomainTissue< SPACE_DIM >::CreateGGapConductivities(), Hdf5DataWriter::DefineFixedDimension(), ExtendedBidomainTissue< SPACE_DIM >::ExtendedBidomainTissue(), Hdf5DataWriter::Hdf5DataWriter(), AbstractCardiacTissue< SPACE_DIM >::load(), AbstractCardiacTissue< SPACE_DIM >::LoadCardiacCells(), and AbstractCardiacTissue< SPACE_DIM >::save().

unsigned DistributedVectorFactory::GetLow ( ) const [inline]

Returns:: mLo - The lowest index owned by the process.

Definition at line 201 of file DistributedVectorFactory.hpp.

References mLo.

unsigned DistributedVectorFactory::GetNumProcs ( ) const [inline]

Returns:: mNumProcs - how many processes this factory is expecting.

Definition at line 217 of file DistributedVectorFactory.hpp.

References mNumProcs.

Referenced by CalculateOwnership(), AbstractTetrahedralMesh< SPACE_DIM, SPACE_DIM >::load(), CardiacSimulationArchiver< PROBLEM_CLASS >::Migrate(), rGetGlobalLows(), AbstractMesh< ELEMENT_DIM, SPACE_DIM >::SetDistributedVectorFactory(), and SetFromFactory().

DistributedVectorFactory* DistributedVectorFactory::GetOriginalFactory ( ) [inline]

If msCheckNumberOfProcessesOnLoad is not set, and this factory was loaded from an archive, then return a factory with the settings from the archive, which may not be the same as ours - if running on a different number of processes from the original, we will have used PETSC_DECIDE to set the local ownership on load.

Definition at line 248 of file DistributedVectorFactory.hpp.

References mpOriginalFactory.

Referenced by AbstractTetrahedralMesh< SPACE_DIM, SPACE_DIM >::load(), and CardiacSimulationArchiver< PROBLEM_CLASS >::Migrate().

unsigned DistributedVectorFactory::GetProblemSize ( ) const [inline]