Wrapper around Parmetis calls. More...

#include <arcane/std/internal/MetisWrapper.h>

Inheritance diagram for Arcane::MetisWrapper:

Collaboration diagram for Arcane::MetisWrapper:

Public Member Functions
	MetisWrapper (IParallelMng *pm)
int	callPartKway (const bool print_digest, const bool gather, idx_t vtxdist, idx_t xadj, idx_t adjncy, idx_t vwgt, idx_t adjwgt, idx_t wgtflag, idx_t numflag, idx_t ncon, idx_t nparts, real_t tpwgts, real_t ubvec, idx_t options, idx_t edgecut, idx_t part)
	Simple wrapper around the ParMetis routine "ParMETIS_V3_PartKway".
int	callAdaptiveRepart (const bool print_digest, const bool gather, idx_t vtxdist, idx_t xadj, idx_t adjncy, idx_t vwgt, idx_t vsize, idx_t adjwgt, idx_t wgtflag, idx_t numflag, idx_t ncon, idx_t nparts, real_t tpwgts, real_t ubvec, real_t ipc2redist, idx_t options, idx_t edgecut, idx_t part)
	Simple wrapper around the ParMetis routine "ParMETIS_V3_AdaptiveRepart".
Public Member Functions inherited from Arcane::TraceAccessor
	TraceAccessor (ITraceMng *m)
	Constructs an accessor via the trace manager m.
	TraceAccessor (const TraceAccessor &rhs)
	Copy constructor.
TraceAccessor &	operator= (const TraceAccessor &rhs)
	Copy assignment operator.
virtual	~TraceAccessor ()
	Frees resources.
ITraceMng *	traceMng () const
	Trace manager.
TraceMessage	info () const
	Flow for an information message.
TraceMessage	pinfo () const
	Flow for a parallel information message.
TraceMessage	info (char category) const
	Flow for an information message of a given category.
TraceMessage	pinfo (char category) const
	Flow for a parallel information message of a given category.
TraceMessage	info (bool v) const
	Flow for an information message.
TraceMessage	warning () const
	Flow for a warning message.
TraceMessage	pwarning () const
TraceMessage	error () const
	Flow for an error message.
TraceMessage	perror () const
TraceMessage	log () const
	Flow for a log message.
TraceMessage	plog () const
	Flow for a log message.
TraceMessage	logdate () const
	Flow for a log message preceded by the date.
TraceMessage	fatal () const
	Flow for a fatal error message.
TraceMessage	pfatal () const
	Flow for a parallel fatal error message.
TraceMessageDbg	debug (Trace::eDebugLevel=Trace::Medium) const
	Flow for a debug message.
Trace::eDebugLevel	configDbgLevel () const
	Debug level of the configuration file.
TraceMessage	info (Int32 verbose_level) const
	Flow for an information message of a given level.
TraceMessage	linfo () const
	Flow for an information message with the local information level of this instance.
TraceMessage	linfo (Int32 relative_level) const
	Flow for an information message with the local information level of this instance.
void	fatalMessage (const StandaloneTraceMessage &o) const

Private Types
using	MetisCall

Private Member Functions
int	_callMetisWith2Processors (const Int32 ncon, const bool need_part, ConstArrayView< idx_t > vtxdist, MetisGraphView my_graph, MetisCall &metis)
	Calls Metis by grouping the graph onto 2 processors.

Private Attributes
IParallelMng *	m_parallel_mng = nullptr

Additional Inherited Members
Protected Member Functions inherited from Arcane::TraceAccessor
void	_setLocalVerboseLevel (Int32 v)
Int32	_localVerboseLevel () const

Detailed Description

Wrapper around Parmetis calls.

Definition at line 35 of file MetisWrapper.h.

Member Typedef Documentation

◆ MetisCall

using Arcane::MetisWrapper::MetisCall

private

Initial value:

std::function<int(IParallelMng* pm, MetisGraphView graph,

ArrayView<idx_t> vtxdist)>

Arcane::ArrayView

Modifiable view of an array of type T.

Definition arccore/src/base/arccore/base/ArrayView.h:96

Arcane::IParallelMng

Interface of the parallelism manager for a subdomain.

Definition IParallelMng.h:53

Arcane::MetisGraphView

Definition MetisGraph.h:46

Definition at line 40 of file MetisWrapper.h.

Constructor & Destructor Documentation

◆ MetisWrapper()

Arcane::MetisWrapper::MetisWrapper ( IParallelMng * pm )

explicit

Definition at line 37 of file MetisWrapper.cc.

Member Function Documentation

◆ _callMetisWith2Processors()

int Arcane::MetisWrapper::_callMetisWith2Processors	(	const Int32	ncon,
		const bool	need_part,
		ConstArrayView< idx_t >	vtxdist,
		MetisGraphView	my_graph,
		MetisCall &	metis )

private

Calls Metis by grouping the graph onto 2 processors.

Definition at line 53 of file MetisWrapper.cc.

References Arcane::ParallelMngUtils::createSubParallelMngRef(), Arcane::MetisGraphGather::gatherGraph(), Arcane::RefImpl< InstanceType, RefClassType, ImplTagId >::get(), Arcane::MetisGraphGather::scatterPart(), and Arcane::ConstArrayView< T >::size().

Referenced by callAdaptiveRepart(), and callPartKway().

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◆ callAdaptiveRepart()

int Arcane::MetisWrapper::callAdaptiveRepart	(	const bool	print_digest,
		const bool	gather,
		idx_t *	vtxdist,
		idx_t *	xadj,
		idx_t *	adjncy,
		idx_t *	vwgt,
		idx_t *	vsize,
		idx_t *	adjwgt,
		idx_t *	wgtflag,
		idx_t *	numflag,
		idx_t *	ncon,
		idx_t *	nparts,
		real_t *	tpwgts,
		real_t *	ubvec,
		real_t *	ipc2redist,
		idx_t *	options,
		idx_t *	edgecut,
		idx_t *	part )

Simple wrapper around the ParMetis routine "ParMETIS_V3_AdaptiveRepart".

When gather == true, the graph is grouped on 2 processors before calling ParMETIS_V3_AdaptiveRepart. When print_digest == true, the signature of the inputs/outputs of ParMETIS_V3_AdaptiveRepart is displayed.

Definition at line 221 of file MetisWrapper.cc.

References _callMetisWith2Processors(), Arcane::IParallelMng::communicator(), Arcane::MetisGraphDigest::computeInputDigest(), Arcane::MetisGraphDigest::computeOutputDigest(), Arcane::TraceAccessor::info(), and Arcane::TraceAccessor::pwarning().

Referenced by Arcane::MetisMeshPartitioner::_partitionMesh().

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◆ callPartKway()

int Arcane::MetisWrapper::callPartKway	(	const bool	print_digest,
		const bool	gather,
		idx_t *	vtxdist,
		idx_t *	xadj,
		idx_t *	adjncy,
		idx_t *	vwgt,
		idx_t *	adjwgt,
		idx_t *	wgtflag,
		idx_t *	numflag,
		idx_t *	ncon,
		idx_t *	nparts,
		real_t *	tpwgts,
		real_t *	ubvec,
		idx_t *	options,
		idx_t *	edgecut,
		idx_t *	part )

Simple wrapper around the ParMetis routine "ParMETIS_V3_PartKway".

When gather == true, the graph is grouped on 2 processors before calling ParMETIS_V3_PartKway. When print_digest == true, the signature of the inputs/outputs of ParMETIS_V3_PartKway is displayed.

Definition at line 118 of file MetisWrapper.cc.

References _callMetisWith2Processors(), Arcane::IParallelMng::communicator(), Arcane::MetisGraphDigest::computeInputDigest(), Arcane::MetisGraphDigest::computeOutputDigest(), Arcane::TraceAccessor::info(), and Arcane::TraceAccessor::pwarning().

Referenced by Arcane::MetisMeshPartitioner::_partitionMesh().

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Member Data Documentation

◆ m_parallel_mng

IParallelMng* Arcane::MetisWrapper::m_parallel_mng = nullptr

private

Definition at line 76 of file MetisWrapper.h.

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

Public Member Functions

Private Types

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ MetisCall

Constructor & Destructor Documentation

◆ MetisWrapper()

Member Function Documentation

◆ _callMetisWith2Processors()

◆ callAdaptiveRepart()

◆ callPartKway()

Member Data Documentation

◆ m_parallel_mng