Cabana_Halo.hpp File Reference

Multi-node particle scatter/gather. More...

#include <Cabana_AoSoA.hpp>
#include <Cabana_CommunicationPlan.hpp>
#include <Cabana_Slice.hpp>
#include <Kokkos_Core.hpp>
#include <Kokkos_Profiling_ScopedRegion.hpp>
#include <mpi.h>
#include <exception>
#include <vector>

Include dependency graph for Cabana_Halo.hpp:

Go to the source code of this file.

Classes
class	Cabana::Halo< MemorySpace >
	A communication plan for scattering and gathering of ghosted data. More...
struct	Cabana::is_halo< T >
	Halo static type checker. More...
class	Cabana::Gather< HaloType, AoSoAType, typename std::enable_if< is_aosoa< AoSoAType >::value >::type >
	Synchronously gather data from the local decomposition to the ghosts using the halo forward communication plan. AoSoA version. This is a uniquely-owned to multiply-owned communication. More...
class	Cabana::Gather< HaloType, SliceType, typename std::enable_if< is_slice< SliceType >::value >::type >
	Synchronously gather data from the local decomposition to the ghosts using the halo forward communication plan. AoSoA version. This is a uniquely-owned to multiply-owned communication. More...
class	Cabana::Scatter< HaloType, SliceType >
	Synchronously scatter data from the ghosts to the local decomposition of a slice using the halo reverse communication plan. This is a multiply-owned to uniquely owned communication. More...

Namespaces
namespace	Cabana
	Core: particle data structures and algorithms.

Functions
template<class Halo, class ParticleData>
bool	Cabana::haloCheckValidSize (const Halo &halo, const ParticleData &particles, typename std::enable_if<(is_halo< Halo >::value), int >::type *=0)
	Ensure the particle size matches the total halo (local and ghost) size.
template<class HaloType, class ParticleDataType>
auto	Cabana::createGather (const HaloType &halo, const ParticleDataType &data, const double overallocation=1.0)
	Create the gather.
template<class HaloType, class ParticleDataType>
void	Cabana::gather (const HaloType &halo, ParticleDataType &data)
	Synchronously gather data from the local decomposition to the ghosts using the halo forward communication plan. Slice version. This is a uniquely-owned to multiply-owned communication.
template<class HaloType, class SliceType>
auto	Cabana::createScatter (const HaloType &halo, const SliceType &slice, const double overallocation=1.0, typename std::enable_if<(is_halo< HaloType >::value &&is_slice< SliceType >::value), int >::type *=0)
	Create the scatter.
template<class HaloType, class SliceType>
void	Cabana::scatter (const HaloType &halo, SliceType &slice, typename std::enable_if<(is_halo< HaloType >::value &&is_slice< SliceType >::value), int >::type *=0)
	Synchronously scatter data from the ghosts to the local decomposition of a slice using the halo reverse communication plan. This is a multiply-owned to uniquely owned communication.

Detailed Description

Multi-node particle scatter/gather.