DomainDecomposition< Device > Class Template Reference

#include <domain_decomposition.hpp>

Collaboration diagram for DomainDecomposition< Device >:

Public Member Functions
	DomainDecomposition (NLReader::NamelistReader &nlr)
	DomainDecomposition (NLReader::NamelistReader &nlr, int nnodes_in)
	DomainDecomposition (int nranks_in)
void	setup_gvid0_pid (NLReader::NamelistReader &nlr, int nnodes_in)
void	update (int new_f0_inode1)
void	update_pol_decomp ()
void	update_flux_surf (const View< int **, CLayout, HostType > &surf_idx, const View< int *, CLayout, HostType > &nnodes_on_surface)
KOKKOS_INLINE_FUNCTION int	node_to_plane_rank (int node) const
KOKKOS_INLINE_FUNCTION void	node_to_rank (const SimdGridWeights< Order::Zero, PIT_GLOBAL > &grid_wts0, const Simd< int > &iphi, bool plane_sort_only, Simd< int > &pid) const
int	node_to_plane_rank_h (int node, int initial_guess) const

Public Attributes
int	nplanes
bool	pol_decomp
	Use poloidal decomposition. More...
int	pe_per_plane
	Processors per plane. More...
int	plane_totalpe
	Processors per plane? More...
int	n_pids
	Processors per plane? More...
int	my_pid
	ID of this processor. More...
int	my_plane_pid
	Poloidal ID of this processor. More...
int	plane_index
	Offset of local plane. More...
int	nnodes_on_plane
	Number of nodes on local plane. More...
bool	decompose_fields
	Whether to decompose fields. More...
FieldDecomposition< Device >	field_decomp
int	node_offset
	Offset of first mesh node belonging to this MPI rank. More...
int	nnodes
	Number of nodes belonging to this MPI rank. More...
Kokkos::View< int *, Kokkos::LayoutRight, HostType >	gvid0_pid_h
	Which processors get which vertices (host) More...
Kokkos::View< int *, Kokkos::LayoutRight, Device >	gvid0_pid
	Which processors get which vertices. More...
View< int *, CLayout, HostType >	surfs
	Which surfaces are at least partially on this rank. More...
View< int *, CLayout, HostType >	ranks_sharing_flux_surf
	Which processors share a flux surface with this one. More...

Constructor & Destructor Documentation

template<class Device >

DomainDecomposition< Device >::DomainDecomposition

(

NLReader::NamelistReader &

nlr

)

Constructor for DomainDecomposition class

template<class Device >

DomainDecomposition< Device >::DomainDecomposition	(	NLReader::NamelistReader &	nlr,
		int	nnodes_in
	)

Constructor for DomainDecomposition class

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template<class Device >

DomainDecomposition< Device >::DomainDecomposition

(

int

nranks_in

)

Member Function Documentation

template<class Device >

KOKKOS_INLINE_FUNCTION int DomainDecomposition< Device >::node_to_plane_rank

(

int

node

)

const

Determine which processor a given mesh vertex belongs

Parameters

[in]

node

The mesh vertex (one indexed)

Returns

The processor the the vertex belongs to

template<class Device >

int DomainDecomposition< Device >::node_to_plane_rank_h ( int  node, int  initial_guess  ) const

inline

Determine which processor a given mesh vertex belongs, on CPU

Parameters

[in]	node	The mesh vertex (one indexed)
[in]	initial_guess	Provide an initial starting guess for the processor rank

Returns

The processor the the vertex belongs to

template<class Device >

KOKKOS_INLINE_FUNCTION void DomainDecomposition< Device >::node_to_rank	(	const SimdGridWeights< Order::Zero, PIT_GLOBAL > &	grid_wts0,
		const Simd< int > &	iphi,
		bool	plane_sort_only,
		Simd< int > &	pid
	)		const

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template<class Device >

void DomainDecomposition< Device >::setup_gvid0_pid	(	NLReader::NamelistReader &	nlr,
		int	nnodes_in
	)

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template<class Device >

void DomainDecomposition< Device >::update

(

int

new_f0_inode1

)

Update the vertex offset of the local rank with the provided value, then do an allgather to update all ranks

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template<class Device >

void DomainDecomposition< Device >::update_flux_surf	(	const View< int **, CLayout, HostType > &	surf_idx,
		const View< int *, CLayout, HostType > &	nnodes_on_surface
	)

Update the list of poloidal plane ranks that share a flux surface with this one

template<class Device >

void DomainDecomposition< Device >::update_pol_decomp

(

)

Update the poloidal decomposition. Pretty sure that gvid0_pid is the only thing that actually needs to be updated

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Member Data Documentation

template<class Device>

bool DomainDecomposition< Device >::decompose_fields

Whether to decompose fields.

template<class Device>

FieldDecomposition<Device> DomainDecomposition< Device >::field_decomp

template<class Device>

Kokkos::View<int*,Kokkos::LayoutRight,Device> DomainDecomposition< Device >::gvid0_pid

Which processors get which vertices.

template<class Device>

Kokkos::View<int*,Kokkos::LayoutRight,HostType> DomainDecomposition< Device >::gvid0_pid_h

Which processors get which vertices (host)

template<class Device>

int DomainDecomposition< Device >::my_pid

ID of this processor.

template<class Device>

int DomainDecomposition< Device >::my_plane_pid

Poloidal ID of this processor.

template<class Device>

int DomainDecomposition< Device >::n_pids

Processors per plane?

template<class Device>

int DomainDecomposition< Device >::nnodes

Number of nodes belonging to this MPI rank.

template<class Device>

int DomainDecomposition< Device >::nnodes_on_plane

Number of nodes on local plane.

template<class Device>

int DomainDecomposition< Device >::node_offset

Offset of first mesh node belonging to this MPI rank.

template<class Device>

int DomainDecomposition< Device >::nplanes

template<class Device>

int DomainDecomposition< Device >::pe_per_plane

Processors per plane.

template<class Device>

int DomainDecomposition< Device >::plane_index

Offset of local plane.

template<class Device>

int DomainDecomposition< Device >::plane_totalpe

Processors per plane?

template<class Device>

bool DomainDecomposition< Device >::pol_decomp

Use poloidal decomposition.

template<class Device>

View<int*,CLayout,HostType> DomainDecomposition< Device >::ranks_sharing_flux_surf

Which processors share a flux surface with this one.

template<class Device>

View<int*,CLayout,HostType> DomainDecomposition< Device >::surfs

Which surfaces are at least partially on this rank.

---

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

• /u/gitlab-xgc/builds/YGMz2TJ8/0/xgc/XGC-Devel/XGC_core/cpp/domain_decomposition.hpp
• /u/gitlab-xgc/builds/YGMz2TJ8/0/xgc/XGC-Devel/XGC_core/cpp/domain_decomposition.tpp