exaparty::kernels::internal Namespace Reference

Functions
template<int SubChunkSize, typename LocalParticle , typename ActiveParticle >
std::pair< std::bitset< SubChunkSize >, std::bitset< SubChunkSize > >	identifyInteractingParticlesFixedLocalParticle (const peano4::datamanagement::CellMarker &marker, LocalParticle *localParticle, ActiveParticle *firstActiveParticleInSubchunk, int thisSubchunkSize, UpdateParticlePairWithinCellPredicate< LocalParticle > particlePairPredicate)
	Identify interacting particles.
template<int SubChunkSize, typename LocalParticle , typename ActiveParticle >
std::pair< std::bitset< SubChunkSize >, std::bitset< SubChunkSize > >	identifyInteractingParticlesFixedActiveParticle (const peano4::datamanagement::CellMarker &marker, LocalParticle *firstLocalParticleInSubchunk, int thisSubchunkSize, ActiveParticle *activeParticle, UpdateParticlePairWithinCellPredicate< LocalParticle > particlePairPredicate)
	Counterpart to other operations, but this time we loop over the local particle and keep the active one fixed.

Variables
tarch::multicore::BooleanSemaphore	_multiscaleInteractionSemaphore
	If particles on multiple levels interact, we have to be very careful and ensure that multiple subcells (if mapped onto tasks) do not write to the same coarse grid particles concurrently.

Function Documentation

identifyInteractingParticlesFixedActiveParticle()

template<int SubChunkSize, typename LocalParticle , typename ActiveParticle >

std::pair< std::bitset< SubChunkSize >, std::bitset< SubChunkSize > > exaparty::kernels::internal::identifyInteractingParticlesFixedActiveParticle	(	const peano4::datamanagement::CellMarker &	marker,
		LocalParticle *	firstLocalParticleInSubchunk,
		int	thisSubchunkSize,
		ActiveParticle *	activeParticle,
		UpdateParticlePairWithinCellPredicate< LocalParticle >	particlePairPredicate
	)

Counterpart to other operations, but this time we loop over the local particle and keep the active one fixed.

identifyInteractingParticlesFixedLocalParticle()

template<int SubChunkSize, typename LocalParticle , typename ActiveParticle >

std::pair< std::bitset< SubChunkSize >, std::bitset< SubChunkSize > > exaparty::kernels::internal::identifyInteractingParticlesFixedLocalParticle	(	const peano4::datamanagement::CellMarker &	marker,
		LocalParticle *	localParticle,
		ActiveParticle *	firstActiveParticleInSubchunk,
		int	thisSubchunkSize,
		UpdateParticlePairWithinCellPredicate< LocalParticle >	particlePairPredicate
	)

Identify interacting particles.

In several situations, we have a continuous chunk of particles and want to identify which of these interact with each other due to the particlePairPredicate. Besides a boolset that identifies those that do interact, we also return a bitfield which identifies where we would have to identify multiscale interactions.

Variable Documentation

_multiscaleInteractionSemaphore

tarch::multicore::BooleanSemaphore exaparty::kernels::internal::_multiscaleInteractionSemaphore

extern

If particles on multiple levels interact, we have to be very careful and ensure that multiple subcells (if mapped onto tasks) do not write to the same coarse grid particles concurrently.