#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)

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

void	zero_entries ()

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

double	get (unsigned int pos) const
	Return value on given position. More...

void	set (unsigned int pos, double val)
	Set value on given position. More...

void	normalize (unsigned int pos, double divisor)
	Normalize value on given position. More...

void	add (unsigned int pos, double val)
	Add value to item on given position. More...

void	duplicate_from (VectorMPI other)
	For the current vector, it creates the same parallel structure as the `other` vector has. More...

void	swap (VectorMPI &other)
	Swaps the current vector data with the other vector data. More...

void	copy_from (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...

	~VectorMPI ()
	Destructor. More...

arma::vec	get_subvec (const LocDofVec &loc_indices)

arma::vec	get_subvec (const LocDofVec &loc_indices) const

void	set_subvec (const LocDofVec &loc_indices, const arma::vec &values)

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 43 of file vector_mpi.hh.

Member Typedef Documentation

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

Definition at line 45 of file vector_mpi.hh.

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

Definition at line 46 of file vector_mpi.hh.

Constructor & Destructor Documentation

VectorMPI::VectorMPI ( MPI_Comm comm = PETSC_COMM_SELF )

Definition at line 29 of file vector_mpi.cc.

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

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

Definition at line 34 of file vector_mpi.cc.

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

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

Definition at line 39 of file vector_mpi.cc.

VectorMPI::~VectorMPI ( )

Destructor.

Definition at line 151 of file vector_mpi.cc.

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Member Function Documentation

void VectorMPI::add	(	unsigned int	pos,
		double	val
	)

inline

Add value to item on given position.

Definition at line 123 of file vector_mpi.hh.

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void VectorMPI::copy_from ( VectorMPI & other )

Copies data from the other vector. Both vector must have the same communicator and distribution.

Definition at line 103 of file vector_mpi.cc.

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void VectorMPI::duplicate_from ( VectorMPI other )

For the current vector, it creates the same parallel structure as the other vector has.

FIXME: it does not take care of ghost values, so it cannot be used in that situation.

Definition at line 80 of file vector_mpi.cc.

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double VectorMPI::get ( unsigned int pos ) const

inline

Return value on given position.

Definition at line 105 of file vector_mpi.hh.

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arma::vec VectorMPI::get_subvec ( const LocDofVec & loc_indices )

Access to the vector element on local index idx. Access to the vector element on local index idx (const version). Access to the vector elements on local indices idx.

Definition at line 110 of file vector_mpi.cc.

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arma::vec VectorMPI::get_subvec ( const LocDofVec & loc_indices ) const

Access to the vector elements on local indices idx (const version).

Definition at line 124 of file vector_mpi.cc.

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 155 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 159 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 147 of file vector_mpi.hh.

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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 151 of file vector_mpi.hh.

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void VectorMPI::normalize	(	unsigned int	pos,
		double	divisor
	)

inline

Normalize value on given position.

Definition at line 117 of file vector_mpi.hh.

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Vec& VectorMPI::petsc_vec ( )

inline

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

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

Definition at line 79 of file vector_mpi.hh.

void VectorMPI::resize ( unsigned int local_size )

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 50 of file vector_mpi.cc.

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

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

Definition at line 66 of file vector_mpi.cc.

VectorMPI VectorMPI::sequential ( unsigned int size )

static

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

Method is used for better readability of code.

Definition at line 44 of file vector_mpi.cc.

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void VectorMPI::set	(	unsigned int	pos,
		double	val
	)

inline

Set value on given position.

Definition at line 111 of file vector_mpi.hh.

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void VectorMPI::set_subvec	(	const LocDofVec &	loc_indices,
		const arma::vec &	values
	)

Set some vector elements on local indices idx.

Definition at line 138 of file vector_mpi.cc.

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unsigned int VectorMPI::size ( ) const

inline

Return size of output data.

Definition at line 98 of file vector_mpi.hh.

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void VectorMPI::swap ( VectorMPI & other )

Swaps the current vector data with the other vector data.

FIXME: it does not take care of ghost values, so it cannot be used

Definition at line 86 of file vector_mpi.cc.

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void VectorMPI::zero_entries ( )

inline

Definition at line 82 of file vector_mpi.hh.

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Member Data Documentation

MPI_Comm VectorMPI::communicator_

private

communicator

Definition at line 206 of file vector_mpi.hh.

Vec VectorMPI::data_petsc_

private

stored vector of data in PETSC format

Definition at line 204 of file vector_mpi.hh.

VectorDataPtr VectorMPI::data_ptr_

private

shared pointer to vector of data

Definition at line 202 of file vector_mpi.hh.

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

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

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