UPstream Class Reference

Inter-processor communications stream. More...

Inheritance diagram for UPstream:

Collaboration diagram for UPstream:

Classes
class	commsStruct
	Structure for communicating between processors. More...
class	communicator
	Helper class for allocating/freeing communicators. More...
class	listEq
	combineReduce operator for lists. Used for counting. More...

Public Types
enum	commsTypes { blocking, scheduled, nonBlocking }
	Types of communications. More...

Public Member Functions
	ClassName ("UPstream")
	UPstream (const commsTypes commsType)
	Construct given optional buffer size. More...
commsTypes	commsType () const
	Get the communications type of the stream. More...
commsTypes	commsType (const commsTypes ct)
	Set the communications type of the stream. More...

Static Public Member Functions
static label	allocateCommunicator (const label parent, const labelList &subRanks, const bool doPstream=true)
	Allocate a new communicator. More...
static void	freeCommunicator (const label communicator, const bool doPstream=true)
	Free a previously allocated communicator. More...
static void	freeCommunicators (const bool doPstream)
	Free all communicators. More...
static int	baseProcNo (const label myComm, const int procID)
	Return physical processor number (i.e. processor number in. More...
static label	procNo (const label comm, const int baseProcID)
	Return processor number in communicator (given physical processor. More...
static label	procNo (const label myComm, const label currentComm, const int currentProcID)
	Return processor number in communicator (given processor number. More...
static void	addValidParOptions (HashTable< string > &validParOptions)
	Add the valid option this type of communications library. More...
static bool	init (int &argc, char **&argv, const bool needsThread)
	Initialisation function called from main. More...
static label	nRequests ()
	Get number of outstanding requests. More...
static void	resetRequests (const label sz)
	Truncate number of outstanding requests. More...
static void	waitRequests (const label start=0)
	Wait until all requests (from start onwards) have finished. More...
static void	waitRequest (const label i)
	Wait until request i has finished. More...
static bool	finishedRequest (const label i)
	Non-blocking comms: has request i finished? More...
static int	allocateTag (const char *)
static int	allocateTag (const word &)
static void	freeTag (const char *, const int tag)
static void	freeTag (const word &, const int tag)
static bool &	parRun ()
	Is this a parallel run? More...
static bool	haveThreads ()
	Have support for threads. More...
static label	nProcs (const label communicator=0)
	Number of processes in parallel run. More...
static int	masterNo ()
	Process index of the master. More...
static bool	master (const label communicator=0)
	Am I the master process. More...
static int	myProcNo (const label communicator=0)
	Number of this process (starting from masterNo() = 0) More...
static label	parent (const label communicator)
static List< int > &	procID (label communicator)
	Process ID of given process index. More...
static int	firstSlave ()
	Process index of first slave. More...
static int	lastSlave (const label communicator=0)
	Process index of last slave. More...
static const List< commsStruct > &	linearCommunication (const label communicator=0)
	Communication schedule for linear all-to-master (proc 0) More...
static const List< commsStruct > &	treeCommunication (const label communicator=0)
	Communication schedule for tree all-to-master (proc 0) More...
static int &	msgType ()
	Message tag of standard messages. More...
static void	exit (int errnum=1)
	Exit program. More...
static void	abort ()
	Abort program. More...
static void	allToAll (const labelUList &sendData, labelUList &recvData, const label communicator=0)
	Exchange label with all processors (in the communicator). More...
static void	allToAll (const char *sendData, const UList< int > &sendSizes, const UList< int > &sendOffsets, char *recvData, const UList< int > &recvSizes, const UList< int > &recvOffsets, const label communicator=0)
	Exchange data with all processors (in the communicator) More...
static void	gather (const char *sendData, int sendSize, char *recvData, const UList< int > &recvSizes, const UList< int > &recvOffsets, const label communicator=0)
	Receive data from all processors on the master. More...
static void	scatter (const char *sendData, const UList< int > &sendSizes, const UList< int > &sendOffsets, char *recvData, int recvSize, const label communicator=0)
	Send data to all processors from the root of the communicator. More...

Static Public Attributes
static const NamedEnum< commsTypes, 3 >	commsTypeNames
static bool	floatTransfer
	Should compact transfer be used in which floats replace doubles. More...
static int	nProcsSimpleSum
	Number of processors at which the sum algorithm changes from linear. More...
static commsTypes	defaultCommsType
	Default commsType. More...
static int	nPollProcInterfaces
	Number of polling cycles in processor updates. More...
static label	worldComm
	Default communicator (all processors) More...
static label	warnComm
	Debugging: warn for use of any communicator differing from warnComm. More...

Protected Attributes
commsTypes	commsType_
	Communications type of this stream. More...

Detailed Description

Inter-processor communications stream.

Source files

• UPstream.H
• UPstream.C
• UPstreamCommsStruct.C
• gatherScatter.C
• combineGatherScatter.C
• gatherScatterList.C

Definition at line 58 of file UPstream.H.

Member Enumeration Documentation

commsTypes

enum commsTypes

strong

Types of communications.

Enumerator
blocking
scheduled
nonBlocking

Definition at line 64 of file UPstream.H.

Constructor & Destructor Documentation

UPstream()

UPstream ( const commsTypes  commsType )

inline

Construct given optional buffer size.

Definition at line 287 of file UPstream.H.

References UPstream::allocateCommunicator(), UPstream::freeCommunicator(), UPstream::freeCommunicators(), and UPstream::parent().

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Member Function Documentation

ClassName()

ClassName

(

"UPstream"

)

allocateCommunicator()

Foam::label allocateCommunicator ( const label  parent, const labelList &  subRanks, const bool  doPstream = true  )

static

Allocate a new communicator.

Definition at line 248 of file UPstream.C.

References Foam::abort(), Foam::endl(), Foam::FatalError, FatalErrorInFunction, forAll, UPstream::freeCommunicator(), Foam::Pout, and List< T >::size().

Referenced by masterCoarsestGAMGProcAgglomeration::agglomerate(), eagerGAMGProcAgglomeration::agglomerate(), manualGAMGProcAgglomeration::agglomerate(), procFacesGAMGProcAgglomeration::agglomerate(), NamedEnum< compressibleField, 8 >::names(), globalMeshData::topoChange(), and UPstream::UPstream().

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freeCommunicator()

void freeCommunicator ( const label  communicator, const bool  doPstream = true  )

static

Free a previously allocated communicator.

Definition at line 314 of file UPstream.C.

References Foam::endl(), and Foam::Pout.

Referenced by UPstream::allocateCommunicator(), globalMeshData::topoChange(), UPstream::UPstream(), collatedFileOperation::~collatedFileOperation(), UPstream::communicator::~communicator(), eagerGAMGProcAgglomeration::~eagerGAMGProcAgglomeration(), hostCollatedFileOperation::~hostCollatedFileOperation(), manualGAMGProcAgglomeration::~manualGAMGProcAgglomeration(), masterCoarsestGAMGProcAgglomeration::~masterCoarsestGAMGProcAgglomeration(), masterUncollatedFileOperation::~masterUncollatedFileOperation(), OFstreamCollator::~OFstreamCollator(), and procFacesGAMGProcAgglomeration::~procFacesGAMGProcAgglomeration().

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freeCommunicators()

void freeCommunicators ( const bool  doPstream )

static

Free all communicators.

Definition at line 341 of file UPstream.C.

References forAll.

Referenced by UPstream::UPstream().

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baseProcNo()

int baseProcNo ( const label  myComm, const int  procID  )

static

Return physical processor number (i.e. processor number in.

worldComm) given communicator and processor

Definition at line 353 of file UPstream.C.

References UPstream::parent(), and UPstream::procID().

Referenced by UPstream::communicator::operator label(), and UPstream::procNo().

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procNo() [1/2]

Foam::label procNo ( const label  comm, const int  baseProcID  )

static

Return processor number in communicator (given physical processor.

number) (= reverse of baseProcNo)

Definition at line 369 of file UPstream.C.

References Foam::findIndex().

Referenced by UPstream::communicator::operator label().

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procNo() [2/2]

Foam::label procNo ( const label  myComm, const label  currentComm, const int  currentProcID  )

static

Return processor number in communicator (given processor number.

and communicator)

Definition at line 387 of file UPstream.C.

References UPstream::baseProcNo(), UPstream::defaultCommsType, UPstream::floatTransfer, Foam::debug::namedEnumOptimisationSwitch(), UPstream::nPollProcInterfaces, UPstream::nProcsSimpleSum, Foam::debug::optimisationSwitch(), serialComm, UPstream::warnComm, and UPstream::worldComm.

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addValidParOptions()

void addValidParOptions ( HashTable< string > &  validParOptions )

static

Add the valid option this type of communications library.

adds/requires on the command line

Definition at line 31 of file UPstream.C.

Referenced by argList::initValidTables::initValidTables(), and UPstream::communicator::operator label().

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init()

bool init ( int &  argc, char **&  argv, const bool  needsThread  )

static

Initialisation function called from main.

Spawns slave processes and initialises inter-communication

Definition at line 35 of file UPstream.C.

References Foam::exit(), Foam::FatalError, FatalErrorInFunction, and Foam::nl.

Referenced by UPstream::communicator::operator label(), and ParRunControl::runPar().

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nRequests()

Foam::label nRequests ( )

static

Get number of outstanding requests.

Definition at line 137 of file UPstream.C.

Referenced by UPstream::allToAll(), distributionMapBase::compact(), Foam::evaluateConstraintTypes(), processorFvPatchField< Type >::initInterfaceMatrixUpdate(), processorGAMGInterfaceField::initInterfaceMatrixUpdate(), UPstream::communicator::operator label(), fvMeshDistribute::printFieldInfo(), fvMesh::unconform(), processorFvPatchField< Type >::updateInterfaceMatrix(), processorGAMGInterfaceField::updateInterfaceMatrix(), and OFstreamCollator::write().

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resetRequests()

void resetRequests ( const label  sz )

static

Truncate number of outstanding requests.

Definition at line 143 of file UPstream.C.

Referenced by UPstream::allToAll(), and UPstream::communicator::operator label().

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waitRequests()

void waitRequests ( const label  start = 0 )

static

Wait until all requests (from start onwards) have finished.

Definition at line 147 of file UPstream.C.

Referenced by UPstream::allToAll(), distributionMapBase::compact(), Foam::evaluateConstraintTypes(), GAMGProcAgglomeration::globalCellCells(), UPstream::communicator::operator label(), fvMeshDistribute::printFieldInfo(), fvMesh::unconform(), and OFstreamCollator::write().

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waitRequest()

void waitRequest ( const label  i )

static

Wait until request i has finished.

Definition at line 151 of file UPstream.C.

Referenced by UPstream::allToAll(), UPstream::communicator::operator label(), processorFvPatchField< Type >::updateInterfaceMatrix(), and processorGAMGInterfaceField::updateInterfaceMatrix().

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finishedRequest()

bool finishedRequest ( const label  i )

static

Non-blocking comms: has request i finished?

Definition at line 155 of file UPstream.C.

References NotImplemented.

Referenced by UPstream::allToAll(), and UPstream::communicator::operator label().

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allocateTag() [1/2]

int allocateTag ( const char *  s )

static

Definition at line 822 of file UPstream.C.

References Foam::endl(), Foam::PstreamGlobals::freedTags_, Foam::PstreamGlobals::nTags_, Foam::Pout, and DynamicList< T, SizeInc, SizeMult, SizeDiv >::remove().

Referenced by UPstream::communicator::operator label().

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allocateTag() [2/2]

int allocateTag ( const word &  s )

static

Definition at line 851 of file UPstream.C.

References Foam::endl(), Foam::PstreamGlobals::freedTags_, Foam::PstreamGlobals::nTags_, Foam::Pout, and DynamicList< T, SizeInc, SizeMult, SizeDiv >::remove().

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freeTag() [1/2]

void freeTag ( const char *  s, const int  tag  )

static

Definition at line 880 of file UPstream.C.

References DynamicList< T, SizeInc, SizeMult, SizeDiv >::append(), Foam::endl(), Foam::PstreamGlobals::freedTags_, and Foam::Pout.

Referenced by UPstream::communicator::operator label().

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freeTag() [2/2]

void freeTag ( const word &  s, const int  tag  )

static

Definition at line 896 of file UPstream.C.

References DynamicList< T, SizeInc, SizeMult, SizeDiv >::append(), Foam::endl(), Foam::PstreamGlobals::freedTags_, and Foam::Pout.

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parRun()

static bool& parRun ( )

inlinestatic

Is this a parallel run?

Definition at line 399 of file UPstream.H.

Referenced by error::abort(), IOerror::abort(), snappyLayerDriver::addLayers(), regIOobject::addWatch(), UPstream::allToAll(), LduMatrix< Type, DType, LUType >::asymmetric(), lduMatrix::asymmetric(), meshRefinement::balance(), boundBox::boundBox(), cyclicAMIPolyPatch::calcGeometry(), processorPolyPatch::calcGeometry(), polyBoundaryMesh::checkParallelSync(), distributionMapBase::compact(), fvMeshStitcher::connect(), cyclicAMIPointPatch::coupled(), processorFvPatch::coupled(), nonConformalProcessorCyclicFvPatch::coupled(), processorCyclicPointPatchField< Type >::coupled(), processorCyclicFvsPatchField< Type >::coupled(), processorPointPatchField< Type >::coupled(), processorFvsPatchField< Type >::coupled(), cyclicAMIFvPatch::coupled(), processorFvPatchField< Type >::coupled(), processorPolyPatch::coupled(), simpleGeomDecomp::decompose(), decompositionMethod::decompose(), conformalVoronoiMesh::decomposition(), nonConformalProcessorCyclicFvPatch::delta(), processorFvPatch::delta(), LduMatrix< Type, DType, LUType >::diagonal(), lduMatrix::diagonal(), fvMeshStitcher::disconnect(), refinementHistory::distribute(), fvMeshDistribute::distribute(), distributedTriSurfaceMesh::distributedTriSurfaceMesh(), snappyLayerDriver::doLayers(), snappyRefineDriver::doRefine(), PointEdgeWave< Type, TrackingData >::edgeToPoint(), Foam::evaluateConstraintTypes(), error::exit(), IOerror::exit(), sampledSurfaces::expire(), polyMesh::findCell(), distributedTriSurfaceMesh::findNearest(), masterUncollatedFileOperation::findTimes(), Foam::functionObjects::fieldValues::volFieldValue::writeFileHeaderLocation< Foam::scalar >(), Pstream::gather(), Pstream::gatherList(), distributedTriSurfaceMesh::getField(), distributedTriSurfaceMesh::getNormal(), distributedTriSurfaceMesh::getRegion(), GAMGProcAgglomeration::globalCellCells(), InflationInjection< CloudType >::InflationInjection(), processorPolyPatch::initCalcGeometry(), processorPolyPatch::initOrder(), processorPolyPatch::initTopoChange(), collatedFileOperation::isMasterRank(), PointEdgeWave< Type, TrackingData >::iterate(), fileOperation::lookupProcessorsPath(), LUscalarMatrix::LUscalarMatrix(), processorFvPatch::makeWeights(), nonConformalProcessorCyclicFvPatch::makeWeights(), NamedEnum< compressibleField, 8 >::names(), polyBoundaryMesh::nbrEdges(), masterUncollatedFileOperation::NewIFstream(), messageStream::operator()(), processorPolyPatch::order(), InflationInjection< CloudType >::parcelsToInject(), patchMeanVelocityForce::patchMeanVelocityForce(), powerLawLopesdaCostaZone::powerLawLopesdaCostaZone(), fvMeshDistribute::printFieldInfo(), collatedFileOperation::processorsDir(), processorTopology::processorTopology(), uncollatedFileOperation::read(), sampledSurfaces::read(), masterUncollatedFileOperation::read(), Time::readModifiedObjects(), masterUncollatedFileOperation::readObjects(), masterUncollatedFileOperation::readStream(), masterUncollatedFileOperation::relativeObjectPath(), Pstream::scatter(), Pstream::scatterList(), Time::setControls(), fvMeshSubset::setLargeCellSubset(), intersection::srcBoxStatic(), LduMatrix< Type, DType, LUType >::symmetric(), lduMatrix::symmetric(), syncTools::syncEdgeMap(), syncTools::syncEdgePositions(), syncTools::syncPointMap(), processorPolyPatch::topoChange(), externalCoupledTemperatureMixedFvPatchScalarField::transferData(), fvMesh::unconform(), sampledSurfaces::update(), fileOperation::updateStates(), sampledSets::write(), sampledSurfaces::write(), streamlines::write(), meshToMeshMethod::writeConnectivity(), volFieldValue::writeFileHeaderLocation(), collatedFileOperation::writeObject(), and masterOFstream::~masterOFstream().

haveThreads()

static bool haveThreads ( )

inlinestatic

Have support for threads.

Definition at line 405 of file UPstream.H.

Referenced by UPstream::listEq::operator()(), and OFstreamCollator::write().

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nProcs()

static label nProcs ( const label  communicator = 0 )

inlinestatic

Number of processes in parallel run.

Definition at line 411 of file UPstream.H.

References List< T >::size().

Referenced by surfaceZonesInfo::addCellZonesToMesh(), surfaceZonesInfo::addFaceZonesToMesh(), masterCoarsestGAMGProcAgglomeration::agglomerate(), eagerGAMGProcAgglomeration::agglomerate(), manualGAMGProcAgglomeration::agglomerate(), procFacesGAMGProcAgglomeration::agglomerate(), UPstream::allToAll(), meshRefinement::balanceAndRefine(), distributionMapBase::calcCompactAddressing(), decomposedBlockData::calcNumProcs(), lineFace::calcSamples(), meshRefinement::checkCoupledFaceZones(), polyBoundaryMesh::checkParallelSync(), collatedFileOperation::collatedFileOperation(), mappedPatchBase::collectSamples(), fieldValue::combineFields(), Foam::combineReduce(), distributionMapBase::compact(), GAMGAgglomeration::continueAgglomerating(), fvMeshDistribute::countCells(), simpleGeomDecomp::decompose(), refinementHistory::distribute(), fvMeshDistribute::distribute(), distributedTriSurfaceMesh::distribute(), distributedTriSurfaceMesh::distributedTriSurfaceMesh(), patchToPatch::distributePatch(), distributionMapBase::distributionMapBase(), distributionMapBase::exchangeAddressing(), extendedUpwindCellToFaceStencil::extendedUpwindCellToFaceStencil(), distributedTriSurfaceMesh::findNearest(), Pstream::gather(), decomposedBlockData::gather(), coordSet::gather(), Foam::gatherAndFlatten(), Pstream::gatherList(), decomposedBlockData::gatherSlaveData(), globalIndex::globalIndex(), hostCollatedFileOperation::hostCollatedFileOperation(), UPstream::lastSlave(), LUscalarMatrix::LUscalarMatrix(), Foam::meshEdge(), NamedEnum< compressibleField, 8 >::names(), masterUncollatedFileOperation::NewIFstream(), lessProcPatches::operator()(), UPstream::listEq::operator()(), InflationInjection< CloudType >::parcelsToInject(), argList::parse(), patchToPatch::patchDistributionMap(), AMIInterpolation::patchMagSf(), powerLawLopesdaCostaZone::powerLawLopesdaCostaZone(), fvMeshDistribute::printCoupleInfo(), distributionMapBase::printLayout(), collatedFileOperation::processorsDir(), processorTopology::processorTopology(), uncollatedFileOperation::read(), masterUncollatedFileOperation::read(), decomposedBlockData::readBlocks(), masterUncollatedFileOperation::readHeader(), masterUncollatedFileOperation::readStream(), distributionMapBase::receive(), Foam::reduce(), meshRefinement::refineAndBalance(), meshRefinement::refineCandidates(), Foam::returnReduce(), Pstream::scatter(), Pstream::scatterList(), distributionMapBase::schedule(), Time::setControls(), fvMeshSubset::setLargeCellSubset(), ParSortableList< Type >::sort(), patchToPatch::srcPatchSendFaces(), globalMeshData::topoChange(), externalCoupledTemperatureMixedFvPatchScalarField::transferData(), loadBalancer::update(), distributor::update(), decomposedBlockData::writeBlocks(), and masterOFstream::~masterOFstream().

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masterNo()

static int masterNo ( )

inlinestatic

Process index of the master.

Definition at line 417 of file UPstream.H.

Referenced by simpleGeomDecomp::decompose(), LUscalarMatrix::LUscalarMatrix(), UPstream::master(), masterUncollatedFileOperation::NewIFstream(), argList::parse(), masterUncollatedFileOperation::read(), decomposedBlockData::readBlocks(), distributionMapBase::schedule(), globalMeshData::sharedPoints(), syncTools::syncEdgeMap(), syncTools::syncPointMap(), decomposedBlockData::writeBlocks(), and masterOFstream::~masterOFstream().

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master()

static bool master ( const label  communicator = 0 )

inlinestatic

Am I the master process.

Definition at line 423 of file UPstream.H.

References UPstream::masterNo().

Referenced by effectivenessHeatExchangerSource::addSup(), regIOobject::addWatch(), masterUncollatedFileOperation::addWatch(), UPstream::allToAll(), mappedPatchBase::calcMapping(), decomposedBlockData::calcNumProcs(), viewFactor::calculate(), argList::check(), polyBoundaryMesh::checkParallelSync(), argList::checkRootCase(), Foam::chMod(), collatedFileOperation::collatedFileOperation(), fieldValue::combineFields(), commSchedule::commSchedule(), Foam::cp(), logFiles::createFiles(), simpleGeomDecomp::decompose(), codedBase::description(), masterUncollatedFileOperation::dirPath(), regionSizeDistribution::divide(), Foam::exists(), logFiles::file(), masterUncollatedFileOperation::filePath(), logFiles::files(), Foam::fileSize(), probes::findElements(), masterUncollatedFileOperation::findInstance(), masterUncollatedFileOperation::findTimes(), masterUncollatedFileOperation::findWatch(), decomposedBlockData::gather(), decomposedBlockData::gatherSlaveData(), masterUncollatedFileOperation::getFile(), masterUncollatedFileOperation::getState(), Random::globalScalar01(), Foam::highResLastModified(), hostCollatedFileOperation::hostCollatedFileOperation(), Foam::isDir(), Foam::isFile(), collatedFileOperation::isMasterRank(), jobInfo::jobInfo(), Foam::lastModified(), Foam::ln(), LUscalarMatrix::LUscalarMatrix(), Foam::mkDir(), Foam::mode(), Foam::mv(), Foam::mvBak(), masterUncollatedFileOperation::NewIFstream(), fileOperation::nProcs(), isNotEqOp< T >::operator()(), messageStream::operator()(), InflationInjection< CloudType >::parcelsToInject(), argList::parse(), porosityModel::porosityModel(), probes::prepare(), decomposedBlockData::read(), uncollatedFileOperation::read(), sampledSurfaces::read(), masterUncollatedFileOperation::read(), decomposedBlockData::readBlocks(), IOdictionary::readData(), Foam::readDir(), masterUncollatedFileOperation::readHeader(), masterUncollatedFileOperation::readObjects(), masterUncollatedFileOperation::readStream(), masterUncollatedFileOperation::removeWatch(), logFiles::resetName(), logFiles::resetNames(), Foam::rm(), Foam::rmDir(), distributionMapBase::schedule(), masterUncollatedFileOperation::setUnmodified(), globalMeshData::sharedPoints(), jobInfo::signalEnd(), rigidBodyMeshMotionSolver::solve(), rigidBodyMotion::solve(), rigidBodyMeshMotion::solve(), ParSortableList< Type >::sort(), syncTools::syncEdgeMap(), syncTools::syncPointMap(), externalCoupledTemperatureMixedFvPatchScalarField::transferData(), IOobject::typeHeaderOk(), sampledSurfaces::update(), sixDoFRigidBodyMotion::update(), fileMonitor::updateStates(), masterUncollatedFileOperation::updateStates(), solution::upgradeSolverDict(), OFstreamCollator::waitAll(), jobInfo::write(), specieReactionRates::write(), timeStep::write(), time::write(), residuals::write(), turbulenceIntensity::write(), rigidBodyState::write(), cloudInfo::write(), sixDoFRigidBodyState::write(), yPlus::write(), wallHeatFlux::write(), sampledSets::write(), histogram::write(), wallShearStress::write(), wallHeatTransferCoeff::write(), OFstreamCollator::write(), fieldValueDelta::write(), layerAverage::write(), forceCoeffs::write(), sampledSurfaces::write(), streamlines::write(), forces::write(), volFieldValue::write(), surfaceFieldValue::write(), decomposedBlockData::writeBlocks(), decomposedBlockData::writeData(), timeStep::writeFileHeader(), time::writeFileHeader(), residuals::writeFileHeader(), decomposedBlockData::writeObject(), collatedFileOperation::writeObject(), jobInfo::~jobInfo(), and masterOFstream::~masterOFstream().

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myProcNo()

static int myProcNo ( const label  communicator = 0 )

inlinestatic

Number of this process (starting from masterNo() = 0)

Definition at line 429 of file UPstream.H.

Referenced by surfaceZonesInfo::addCellZonesToMesh(), surfaceZonesInfo::addFaceZonesToMesh(), GAMGProcAgglomeration::agglomerate(), masterCoarsestGAMGProcAgglomeration::agglomerate(), eagerGAMGProcAgglomeration::agglomerate(), manualGAMGProcAgglomeration::agglomerate(), distributionMapBase::calcCompactAddressing(), lineFace::calcSamples(), points::calcSamples(), viewFactor::calculate(), GAMGAgglomeration::calculateRegionMaster(), meshRefinement::checkCoupledFaceZones(), polyBoundaryMesh::checkParallelSync(), collatedFileOperation::collatedFileOperation(), mappedPatchBase::collectSamples(), fieldValue::combineFields(), distributionMapBase::compact(), noDecomp::decompose(), codedBase::description(), fvMeshDistribute::distribute(), distributedTriSurfaceMesh::distribute(), distributedTriSurfaceMesh::distributedTriSurfaceMesh(), patchToPatch::distributePatch(), distributionMap::distributionMap(), distributionMapBase::distributionMapBase(), distributionMapBase::exchangeAddressing(), processorField::execute(), InjectionModel< CloudType >::findCellAtPosition(), probes::findElements(), patchProbes::findElements(), distributedTriSurfaceMesh::findNearest(), mappedPatchBase::findSamples(), Pstream::gather(), coordSet::gather(), lduPrimitiveMesh::gather(), Foam::gatherAndFlatten(), Pstream::gatherList(), decomposedBlockData::gatherSlaveData(), get_edge_list(), GAMGProcAgglomeration::globalCellCells(), globalIndex::globalIndex(), particle::hitNonConformalCyclicPatch(), hostCollatedFileOperation::hostCollatedFileOperation(), globalIndex::isLocal(), lduPrimitiveMesh::lduPrimitiveMesh(), patchToPatch::localFacesToProcFaces(), globalIndex::localSize(), meshToMesh::mapAndOpTgtToSrc(), conformalVoronoiMesh::maxSurfaceProtrusion(), meshRefinement::mergeBaffles(), Foam::meshEdge(), Foam::min(), NamedEnum< compressibleField, 8 >::names(), masterUncollatedFileOperation::NewIFstream(), regionSplit::nLocalRegions(), ListPlusEqOp< T, Size >::operator()(), lessProcPatches::operator()(), InflationInjection< CloudType >::parcelsToInject(), argList::parse(), patchToPatch::patchDistributionMap(), AMIInterpolation::patchMagSf(), powerLawLopesdaCostaZone::powerLawLopesdaCostaZone(), UOPstream::print(), fvMeshDistribute::printCoupleInfo(), distributionMapBase::printLayout(), backgroundMeshDecomposition::procBounds(), processorTopology::processorTopology(), uncollatedFileOperation::read(), masterUncollatedFileOperation::read(), masterUncollatedFileOperation::readHeader(), masterUncollatedFileOperation::readStream(), indexedVertex< Gt, Vb >::referred(), masterUncollatedFileOperation::relativeObjectPath(), Pstream::scatter(), Pstream::scatterList(), distributionMapBase::schedule(), Time::setControls(), fvMeshSubset::setLargeCellSubset(), patchInjectionBase::setPositionAndCell(), ParSortableList< Type >::sort(), ThermoSurfaceFilm< CloudType >::splashInteraction(), intersection::srcBoxStatic(), masterUncollatedFileOperation::subRanks(), refinementHistory::subset(), globalIndex::toGlobal(), globalIndex::toLocal(), patchInjectionBase::topoChange(), externalCoupledTemperatureMixedFvPatchScalarField::transferData(), meshToMeshMethod::writeConnectivity(), AMIInterpolation::writeFaceConnectivity(), extendedCellToFaceStencil::writeStencilStats(), and masterOFstream::~masterOFstream().

parent()

static label parent ( const label  communicator )

inlinestatic

Definition at line 434 of file UPstream.H.

Referenced by UPstream::baseProcNo(), and UPstream::UPstream().

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procID()

static List<int>& procID ( label  communicator )

inlinestatic

Process ID of given process index.

Definition at line 440 of file UPstream.H.

Referenced by UPstream::baseProcNo(), UPstream::listEq::operator()(), and collatedFileOperation::processorsDir().

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firstSlave()

static int firstSlave ( )

inlinestatic

Process index of first slave.

Definition at line 446 of file UPstream.H.

Referenced by LUscalarMatrix::LUscalarMatrix(), argList::parse(), distributionMapBase::schedule(), globalMeshData::sharedPoints(), syncTools::syncEdgeMap(), and syncTools::syncPointMap().

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lastSlave()

static int lastSlave ( const label  communicator = 0 )

inlinestatic

Process index of last slave.

Definition at line 452 of file UPstream.H.

References UPstream::linearCommunication(), and UPstream::nProcs().

Referenced by LUscalarMatrix::LUscalarMatrix(), argList::parse(), distributionMapBase::schedule(), globalMeshData::sharedPoints(), syncTools::syncEdgeMap(), and syncTools::syncPointMap().

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linearCommunication()

static const List<commsStruct>& linearCommunication ( const label  communicator = 0 )

inlinestatic

Communication schedule for linear all-to-master (proc 0)

Definition at line 459 of file UPstream.H.

References UPstream::treeCommunication().

Referenced by Foam::combineReduce(), Pstream::gather(), Pstream::gatherList(), UPstream::lastSlave(), uncollatedFileOperation::read(), masterUncollatedFileOperation::read(), Foam::reduce(), Foam::returnReduce(), Pstream::scatter(), and Pstream::scatterList().

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treeCommunication()

static const List<commsStruct>& treeCommunication ( const label  communicator = 0 )

inlinestatic

Communication schedule for tree all-to-master (proc 0)

Definition at line 468 of file UPstream.H.

Referenced by Foam::combineReduce(), Pstream::gather(), Pstream::gatherList(), UPstream::linearCommunication(), uncollatedFileOperation::read(), masterUncollatedFileOperation::read(), Foam::reduce(), Foam::returnReduce(), Pstream::scatter(), and Pstream::scatterList().

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msgType()

static int& msgType ( )

inlinestatic

Message tag of standard messages.

Definition at line 476 of file UPstream.H.

Referenced by decompositionMethod::calcCellCells(), masterUncollatedFileOperation::chMod(), extendedCentredCellToFaceStencil::compact(), extendedCentredFaceToCellStencil::compact(), extendedCentredCellToCellStencil::compact(), distributionMapBase::constructHasFlip(), masterUncollatedFileOperation::cp(), masterUncollatedFileOperation::dirPath(), masterUncollatedFileOperation::exists(), masterUncollatedFileOperation::filePath(), masterUncollatedFileOperation::fileSize(), masterUncollatedFileOperation::findInstance(), UOPstream::flags(), UIPstream::flags(), globalIndex::gather(), lduPrimitiveMesh::gather(), Foam::gAverage(), GAMGProcAgglomeration::globalCellCells(), globalIndex::globalIndex(), Foam::gSumCmptProd(), Foam::gSumProd(), masterUncollatedFileOperation::highResLastModified(), masterUncollatedFileOperation::isDir(), masterUncollatedFileOperation::isFile(), masterUncollatedFileOperation::lastModified(), lduPrimitiveMesh::lduPrimitiveMesh(), masterUncollatedFileOperation::ln(), LUscalarMatrix::LUscalarMatrix(), mappedPatchFieldBase< Type >::mappedField(), masterUncollatedFileOperation::mkDir(), masterUncollatedFileOperation::mode(), masterUncollatedFileOperation::mv(), masterUncollatedFileOperation::mvBak(), masterUncollatedFileOperation::NewIFstream(), fileOperation::nProcs(), distributionMap::transformPosition::operator()(), processorTopology::processorTopology(), Pstream::Pstream(), uncollatedFileOperation::read(), masterUncollatedFileOperation::read(), decomposedBlockData::readBlocks(), masterUncollatedFileOperation::readDir(), masterUncollatedFileOperation::readHeader(), masterUncollatedFileOperation::readStream(), Foam::reduce(), fvMatrix< Type >::relax(), masterUncollatedFileOperation::rm(), masterUncollatedFileOperation::rmDir(), distributionMapBase::schedule(), processorFvPatch::tag(), processorCyclicPolyPatch::tag(), processorPolyPatch::tag(), globalMeshData::topoChange(), externalCoupledTemperatureMixedFvPatchScalarField::transferData(), distributionMap::transformStart(), masterUncollatedFileOperation::type(), mappedVelocityFluxFixedValueFvPatchField::updateCoeffs(), mappedFlowRateFvPatchVectorField::updateCoeffs(), wideBandDiffusiveRadiationMixedFvPatchScalarField::updateCoeffs(), MarshakRadiationFvPatchScalarField::updateCoeffs(), MarshakRadiationFixedTemperatureFvPatchScalarField::updateCoeffs(), greyDiffusiveRadiationMixedFvPatchScalarField::updateCoeffs(), alphatFilmWallFunctionFvPatchScalarField::updateCoeffs(), turbulentTemperatureRadCoupledMixedFvPatchScalarField::updateCoeffs(), turbulentTemperatureCoupledBaffleMixedFvPatchScalarField::updateCoeffs(), thermalBaffle1DFvPatchScalarField< solidType >::updateCoeffs(), OFstreamCollator::write(), decomposedBlockData::writeBlocks(), and decomposedBlockData::writeData().

commsType() [1/2]

commsTypes commsType ( ) const

inline

Get the communications type of the stream.

Definition at line 483 of file UPstream.H.

References UPstream::commsType_.

commsType() [2/2]

commsTypes commsType ( const commsTypes  ct )

inline

Set the communications type of the stream.

Definition at line 489 of file UPstream.H.

References UPstream::abort(), UPstream::allToAll(), UPstream::commsType_, UPstream::exit(), UPstream::gather(), Foam::operator<<(), and UPstream::scatter().

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exit()

void exit ( int  errnum = 1 )

static

Exit program.

Definition at line 46 of file UPstream.C.

References NotImplemented.

Referenced by UPstream::commsType(), error::exit(), IOerror::exit(), ParRunControl::runPar(), and ParRunControl::~ParRunControl().

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abort()

void abort ( )

static

Abort program.

Definition at line 52 of file UPstream.C.

References NotImplemented.

Referenced by error::abort(), IOerror::abort(), and UPstream::commsType().

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allToAll() [1/2]

void allToAll ( const labelUList &  sendData, labelUList &  recvData, const label  communicator = 0  )

static

Exchange label with all processors (in the communicator).

sendData[proci] is the label to send to proci. After return recvData contains the data from the other processors.

Definition at line 85 of file UPstream.C.

References UList< T >::deepCopy(), and UPstream::gather().

Referenced by UPstream::commsType(), and Foam::reduce().

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allToAll() [2/2]

void allToAll ( const char *  sendData, const UList< int > &  sendSizes, const UList< int > &  sendOffsets, char *  recvData, const UList< int > &  recvSizes, const UList< int > &  recvOffsets, const label  communicator = 0  )

static

Exchange data with all processors (in the communicator)

sendSizes, sendOffsets give (per processor) the slice of sendData to send, similarly recvSizes, recvOffsets give the slice of recvData to receive

Definition at line 376 of file UPstream.C.

References Foam::abort(), UList< T >::begin(), Foam::endl(), Foam::exit(), Foam::FatalError, FatalErrorInFunction, UPstream::finishedRequest(), forAll, UPstream::gather(), UPstream::master(), Foam::PstreamGlobals::MPI_COMM_FOAM, Foam::PstreamGlobals::MPICommunicators_, Foam::PstreamGlobals::MPIGroups_, Foam::nl, UPstream::nProcs(), UPstream::nRequests(), Foam::PstreamGlobals::outstandingRequests_, UPstream::parRun(), Foam::Pout, UPstream::resetRequests(), UPstream::scatter(), UList< T >::size(), UPstream::waitRequest(), UPstream::waitRequests(), and UPstream::worldComm.

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gather()

void gather ( const char *  sendData, int  sendSize, char *  recvData, const UList< int > &  recvSizes, const UList< int > &  recvOffsets, const label  communicator = 0  )

static

Receive data from all processors on the master.

Definition at line 96 of file UPstream.C.

References UPstream::scatter().

Referenced by UPstream::allToAll(), UPstream::commsType(), decomposedBlockData::gather(), and decomposedBlockData::gatherSlaveData().

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scatter()

void scatter ( const char *  sendData, const UList< int > &  sendSizes, const UList< int > &  sendOffsets, char *  recvData, int  recvSize, const label  communicator = 0  )

static

Send data to all processors from the root of the communicator.

Definition at line 111 of file UPstream.C.

Referenced by UPstream::allToAll(), decomposedBlockData::calcNumProcs(), UPstream::commsType(), and UPstream::gather().

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Member Data Documentation

commsTypeNames

const Foam::NamedEnum< Foam::UPstream::commsTypes, 3 > commsTypeNames

static

Definition at line 71 of file UPstream.H.

Referenced by PstreamBuffers::finishedSends(), NamedEnum< compressibleField, 8 >::names(), argList::parse(), decomposedBlockData::readBlocks(), and decomposedBlockData::writeBlocks().

commsType_

commsTypes commsType_

protected

Communications type of this stream.

Definition at line 252 of file UPstream.H.

Referenced by UPstream::commsType(), and UOPstream::~UOPstream().

floatTransfer

bool floatTransfer

static

Should compact transfer be used in which floats replace doubles.

reducing the bandwidth requirement at the expense of some loss in accuracy

Definition at line 265 of file UPstream.H.

Referenced by processorFvPatchField< Type >::initInterfaceMatrixUpdate(), processorGAMGInterfaceField::initInterfaceMatrixUpdate(), argList::parse(), UPstream::procNo(), processorFvPatchField< Type >::updateInterfaceMatrix(), and processorGAMGInterfaceField::updateInterfaceMatrix().

nProcsSimpleSum

int nProcsSimpleSum

static

Number of processors at which the sum algorithm changes from linear.

to tree

Definition at line 269 of file UPstream.H.

Referenced by Foam::combineReduce(), Pstream::gather(), Pstream::gatherList(), argList::parse(), UPstream::procNo(), uncollatedFileOperation::read(), masterUncollatedFileOperation::read(), Foam::reduce(), Foam::returnReduce(), Pstream::scatter(), and Pstream::scatterList().

defaultCommsType

Foam::UPstream::commsTypes defaultCommsType

static

Default commsType.

Definition at line 272 of file UPstream.H.

Referenced by polyBoundaryMesh::clearAddressing(), distributionMapBase::distribute(), mappedPatchBase::distribute(), Foam::evaluateConstraintTypes(), pointBoundaryMesh::findIndices(), pointBoundaryMesh::movePoints(), polyBoundaryMesh::movePoints(), argList::parse(), fvMeshDistribute::printFieldInfo(), processorTopology::processorTopology(), UPstream::procNo(), distributionMapBase::reverseDistribute(), mappedPatchBase::reverseDistribute(), pointBoundaryMesh::topoChange(), polyBoundaryMesh::topoChange(), and fvMesh::unconform().

nPollProcInterfaces

int nPollProcInterfaces

static

Number of polling cycles in processor updates.

Definition at line 275 of file UPstream.H.

Referenced by argList::parse(), and UPstream::procNo().

worldComm

Foam::label worldComm

static

Default communicator (all processors)

Definition at line 278 of file UPstream.H.

Referenced by UPstream::allToAll(), decompositionMethod::calcCellCells(), distributionMapBase::exchangeAddressing(), masterUncollatedFileOperation::findInstance(), NamedEnum< compressibleField, 8 >::names(), masterUncollatedFileOperation::NewIFstream(), messageStream::operator()(), UPstream::procNo(), Pstream::Pstream(), uncollatedFileOperation::read(), masterUncollatedFileOperation::read(), masterUncollatedFileOperation::readHeader(), masterUncollatedFileOperation::readStream(), Foam::reduce(), masterUncollatedFileOperation::relativeObjectPath(), globalMeshData::topoChange(), and collatedFileOperation::~collatedFileOperation().

warnComm

Foam::label warnComm

static

Debugging: warn for use of any communicator differing from warnComm.

Definition at line 281 of file UPstream.H.

Referenced by messageStream::operator()(), UPstream::procNo(), and Foam::reduce().

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

• src/OpenFOAM/db/IOstreams/Pstreams/UPstream.H
• src/OpenFOAM/db/IOstreams/Pstreams/UPstream.C