#include <vector_mpi.hh>

Public Types
typedef std::vector< double >	VectorData

typedef std::shared_ptr< VectorData >	VectorDataPtr

Public Member Functions
	VectorMPI (MPI_Comm comm=PETSC_COMM_SELF)

	VectorMPI (unsigned int local_size, MPI_Comm comm=PETSC_COMM_WORLD)
	Create shared pointer and PETSC vector with given size. COLLECTIVE. More...

	VectorMPI (unsigned int local_size, std::vector< LongIdx > &ghost_idx)
	Create PETSc vector with ghost values whose indices are specified in `ghost_idx`. More...

void	resize (unsigned int local_size)

void	resize (unsigned int local_size, std::vector< LongIdx > &ghost_idx)

void	duplicate (VectorMPI other)
	Return new vector with same parallel structure. More...

VectorDataPtr	data_ptr ()
	Getter for shared pointer of output data. More...

Vec &	petsc_vec ()
	Getter for PETSC vector of output data (e.g. can be used by scatters). More...

void	zero_entries ()

VectorData &	data ()

void	swap (VectorMPI &other)

void	copy (VectorMPI &other)

void	local_to_ghost_begin ()
	local_to_ghost_{begin,end} updates the ghost values on neighbouring processors from local values More...

void	local_to_ghost_end ()
	local_to_ghost_{begin,end} updates the ghost values on neighbouring processors from local values More...

void	ghost_to_local_begin ()
	ghost_to_local_{begin,end} updates the local values by adding ghost values from neighbouring processors More...

void	ghost_to_local_end ()
	ghost_to_local_{begin,end} updates the local values by adding ghost values from neighbouring processors More...

unsigned int	size () const
	Return size of output data. More...

	~VectorMPI ()
	Destructor. More...

double &	operator[] (unsigned int idx)

Static Public Member Functions
static VectorMPI	sequential (unsigned int size)

Private Attributes
VectorDataPtr	data_ptr_
	shared pointer to vector of data More...

Vec	data_petsc_
	stored vector of data in PETSC format More...

MPI_Comm	communicator_
	communicator More...

Detailed Description

Auxiliary class for output elementwise concentration vectors in convection transport, sorptions, dual porosity etc.

Stores data in two formats:

shared pointer to std::vector of double
pointer to PETSC vector that use same data

Allows the following functionalities:

access to local part
return shared pointer to std::vector of double
return pointer to PETSC vector

Definition at line 42 of file vector_mpi.hh.

Member Typedef Documentation

typedef std::vector<double> VectorMPI::VectorData

Definition at line 44 of file vector_mpi.hh.

typedef std::shared_ptr< VectorData > VectorMPI::VectorDataPtr

Definition at line 45 of file vector_mpi.hh.

Constructor & Destructor Documentation

VectorMPI::VectorMPI ( MPI_Comm comm = PETSC_COMM_SELF )

inline

Definition at line 47 of file vector_mpi.hh.

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VectorMPI::VectorMPI	(	unsigned int	local_size,
		MPI_Comm	comm = `PETSC_COMM_WORLD`
	)

inline

Create shared pointer and PETSC vector with given size. COLLECTIVE.

Definition at line 51 of file vector_mpi.hh.

VectorMPI::VectorMPI	(	unsigned int	local_size,
		std::vector< LongIdx > &	ghost_idx
	)

inline

Create PETSc vector with ghost values whose indices are specified in ghost_idx.

Definition at line 57 of file vector_mpi.hh.

VectorMPI::~VectorMPI ( )

inline

Destructor.

Definition at line 187 of file vector_mpi.hh.

Member Function Documentation

void VectorMPI::copy ( VectorMPI & other )

inline

Definition at line 152 of file vector_mpi.hh.

VectorData& VectorMPI::data ( )

inline

Definition at line 129 of file vector_mpi.hh.

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VectorDataPtr VectorMPI::data_ptr ( )

inline

Getter for shared pointer of output data.

Definition at line 114 of file vector_mpi.hh.

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void VectorMPI::duplicate ( VectorMPI other )

inline

Return new vector with same parallel structure.

Definition at line 108 of file vector_mpi.hh.

void VectorMPI::ghost_to_local_begin ( )

inline

ghost_to_local_{begin,end} updates the local values by adding ghost values from neighbouring processors

Definition at line 169 of file vector_mpi.hh.

void VectorMPI::ghost_to_local_end ( )

inline

ghost_to_local_{begin,end} updates the local values by adding ghost values from neighbouring processors

Definition at line 174 of file vector_mpi.hh.

void VectorMPI::local_to_ghost_begin ( )

inline

local_to_ghost_{begin,end} updates the ghost values on neighbouring processors from local values

Definition at line 159 of file vector_mpi.hh.

void VectorMPI::local_to_ghost_end ( )

inline

local_to_ghost_{begin,end} updates the ghost values on neighbouring processors from local values

Definition at line 164 of file vector_mpi.hh.

double& VectorMPI::operator[] ( unsigned int idx )

inline

Access to the vector element on index idx.

Definition at line 196 of file vector_mpi.hh.

Vec& VectorMPI::petsc_vec ( )

inline

Getter for PETSC vector of output data (e.g. can be used by scatters).

Definition at line 120 of file vector_mpi.hh.

void VectorMPI::resize ( unsigned int local_size )

inline

Resize the vector to given local size. Operation is allowed only if this object is a unique vector object pointing to the actual data.

Definition at line 76 of file vector_mpi.hh.

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void VectorMPI::resize	(	unsigned int	local_size,
		std::vector< LongIdx > &	ghost_idx
	)

inline

Resize the vector to given local size with ghost values. Indices of ghost values are in ghost_idx.

Definition at line 94 of file vector_mpi.hh.

static VectorMPI VectorMPI::sequential ( unsigned int size )

inlinestatic

Helper method creating VectorMPI of given size with serial Petsc communicator.

Method is used for better readability of code.

Definition at line 67 of file vector_mpi.hh.

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unsigned int VectorMPI::size ( ) const

inline

Return size of output data.

Definition at line 179 of file vector_mpi.hh.

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void VectorMPI::swap ( VectorMPI & other )

inline

Definition at line 135 of file vector_mpi.hh.

void VectorMPI::zero_entries ( )

inline

Definition at line 125 of file vector_mpi.hh.

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Member Data Documentation

MPI_Comm VectorMPI::communicator_

private

communicator

Definition at line 210 of file vector_mpi.hh.

Vec VectorMPI::data_petsc_

private

stored vector of data in PETSC format

Definition at line 208 of file vector_mpi.hh.

VectorDataPtr VectorMPI::data_ptr_

private

shared pointer to vector of data

Definition at line 206 of file vector_mpi.hh.

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

/opt/flow123d/flow123d/src/la/vector_mpi.hh

Public Types

Public Member Functions

Static Public Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation