Communication helper in parallel mode. More...

#include <MEDSPLITTER_ParaDomainSelector.hxx>

Public Member Functions
	ParaDomainSelector (bool mesure_memory=false)
	Constructor. Find out my rank and world size.
	~ParaDomainSelector ()
	return processor rank
int	rank () const
	return number of processors
int	nbProcs () const
bool	isOnDifferentHosts () const
	Return true if is running on different hosts.
bool	isMyDomain (int domainIndex) const
	Return true if the domain with domainIndex is to be loaded on this proc.
int	getProccessorID (int domainIndex) const
	Set nb of required domains. (Used to sort joints via jointId())
void	setNbDomains (int nb)
int	jointId (int local_domain, int distant_domain) const
	Return identifier for a joint.
int	gatherNbOf (MED_EN::medEntityMesh entity, const std::vector< MEDMEM::MESH * > &domain_meshes)
	Gather info on nb of entities on each processor and return total nb.
int *	getNbVertOfProcs () const
int	getProcShift () const
	Return nb of cells on processors with lower rank.
int	getDomainShift (int domainIndex) const
	Return nb of cells in domains with lower index.
std::auto_ptr< Graph >	gatherGraph (const Graph *graph) const
	Gather graphs from all processors into one.
void	gatherEntityTypesInfo (std::vector< MEDMEM::MESH * > &domain_meshes, MED_EN::medEntityMesh entity)
	Sets global numbering for the entity.
void	setNbCellPairs (int nb_cell_pairs, int dist_domain, int loc_domain)
	Set nb of cell/cell pairs in a joint between domains.
void	gatherNbCellPairs ()
	Gather size of each joint.
int	getNbCellPairs (int dist_domain, int loc_domain) const
	Return nb of cell/cell pairs in a joint between domains on different procs.
void	exchangeJoint (JointExchangeData *joint) const
	Send-receive joint data.
int	getFisrtGlobalIdOfSubentity (int loc_domain, int dist_domain) const
	Return the first global id of sub-entity for the joint.
int *	exchangeSubentityIds (int loc_domain, int dist_domain, const std::vector< int > &loc_ids_here) const
	Send-receive local ids of joint faces.
double	getPassedTime () const
	Return domain order so that first go domains on proc 0 and so n.
int	evaluateMemory () const
	Evaluate current memory usage and return the maximal one in KB.
Private Attributes
int	_rank
int	_world_size
int	_nb_result_domains
std::vector< int >	_nb_cell_pairs_by_joint
std::vector< int >	_nb_vert_of_procs
std::vector< int >	_cell_shift_by_domain
std::vector< int >	_face_shift_by_domain
double	_init_time
bool	_mesure_memory
int	_init_memory
int	_max_memory

Detailed Description

Communication helper in parallel mode.

Constructor & Destructor Documentation

ParaDomainSelector::ParaDomainSelector ( bool mesure_memory = false )

Constructor. Find out my rank and world size.

References MEDSPLITTER.ParaDomainSelector._init_time, MEDSPLITTER.ParaDomainSelector._rank, MEDSPLITTER.ParaDomainSelector._world_size, and MEDSPLITTER.ParaDomainSelector.evaluateMemory().

ParaDomainSelector::~ParaDomainSelector ( )

return processor rank

Destructor.

Member Function Documentation

int MEDSPLITTER.ParaDomainSelector.rank ( ) const

return number of processors

int MEDSPLITTER.ParaDomainSelector.nbProcs ( ) const

bool ParaDomainSelector::isOnDifferentHosts ( ) const

Return true if is running on different hosts.

References MEDSPLITTER.ParaDomainSelector._world_size, MEDSPLITTER.ParaDomainSelector.evaluateMemory(), MEDSPLITTER.ParaDomainSelector.nbProcs(), MEDSPLITTER.ParaDomainSelector.rank(), test_NonCoincidentDEC.size, and testMedMemCxxTests.status.

bool ParaDomainSelector::isMyDomain ( int domainIndex ) const

Return true if the domain with domainIndex is to be loaded on this proc.

Parameters:

domainIndex - index of mesh domain

Return values:

bool	- to load or not

References MEDSPLITTER.ParaDomainSelector._rank, MEDSPLITTER.ParaDomainSelector.evaluateMemory(), and MEDSPLITTER.ParaDomainSelector.getProccessorID().

int ParaDomainSelector::getProccessorID ( int domainIndex ) const

Set nb of required domains. (Used to sort joints via jointId())

Return processor id where the domain with domainIndex resides.

Parameters:

domainIndex - index of mesh domain

Return values:

int	- processor id

References MEDSPLITTER.ParaDomainSelector._world_size, and MEDSPLITTER.ParaDomainSelector.evaluateMemory().

void MEDSPLITTER.ParaDomainSelector.setNbDomains ( int nb )

int ParaDomainSelector::jointId	(	int	local_domain,
		int	distant_domain
	)		const

Return identifier for a joint.

References MEDSPLITTER.ParaDomainSelector._nb_result_domains, MEDSPLITTER.ParaDomainSelector.evaluateMemory(), MED_EXCEPTION, and INTERP_KERNEL.swap().

int ParaDomainSelector::gatherNbOf	(	MED_EN::medEntityMesh	entity,
		const std::vector< MEDMEM::MESH * > &	domain_meshes
	)

Gather info on nb of entities on each processor and return total nb.

Is called 1) for MED_CELL to know global id shift for domains at graph construction; 2) for sub-entity to know total nb of sub-entities before creating those of joints

References MEDSPLITTER.ParaDomainSelector._cell_shift_by_domain, MEDSPLITTER.ParaDomainSelector._face_shift_by_domain, MEDSPLITTER.ParaDomainSelector._nb_vert_of_procs, MEDSPLITTER.ParaDomainSelector._world_size, MEDSPLITTER.ParaDomainSelector.evaluateMemory(), MEDSPLITTER.ParaDomainSelector.getProccessorID(), MED_EN.MED_ALL_ELEMENTS, MED_EN.MED_CELL, MEDSPLITTER.ParaDomainSelector.nbProcs(), and MEDSPLITTER.ParaDomainSelector.rank().