peclet::core::amr::DistributedMultigridView< Dim, Bits > Class Template Reference

Device-resident distributed geometric multigrid for the plain Laplacian (the device analogue of the host DistributedMultigrid). More...

#include <distributed_view.hpp>

Public Types
using	Octree = DistributedOctree< Dim, Bits >

Public Member Functions
void	build (const IVec< Dim > &g0, const AmrGeometry< Dim > &geo, const std::array< bool, Dim > &periodic, MPI_Comm comm)
std::size_t	numLevels () const
Index	numLeaves (std::size_t L=0) const
DistributedPoissonView< Dim, Bits > &	op (std::size_t L=0)
Octree &	octree (std::size_t L=0)
View< double >	x (std::size_t L=0)
View< double >	b (std::size_t L=0)
void	vcycle (View< double > x, View< const double > b, int pre=2, int post=2, int bottom=30, std::size_t L=0)
	One V-cycle of A x = b on level L (correction scheme); entirely device-resident bar the compact gather buffers + the residual-norm Allreduce.

Detailed Description

template<int Dim, unsigned Bits = (Dim == 2 ? 32u : (Dim == 3 ? 21u : 16u))>
class peclet::core::amr::DistributedMultigridView< Dim, Bits >

Device-resident distributed geometric multigrid for the plain Laplacian (the device analogue of the host DistributedMultigrid).

Hierarchy + nesting maps mirror the host build; smoother is the device distributed Jacobi; restriction (child-CSR gather) and prolongation (piecewise-constant) are the local, bit-exact device kernels from multigrid.hpp.

Definition at line 242 of file distributed_view.hpp.

Member Typedef Documentation

Octree

template<int Dim, unsigned Bits = (Dim == 2 ? 32u : (Dim == 3 ? 21u : 16u))>

using peclet::core::amr::DistributedMultigridView< Dim, Bits >::Octree = DistributedOctree<Dim, Bits>

Definition at line 244 of file distributed_view.hpp.

Member Function Documentation

build()

template<int Dim, unsigned Bits = (Dim == 2 ? 32u : (Dim == 3 ? 21u : 16u))>

void peclet::core::amr::DistributedMultigridView< Dim, Bits >::build ( const IVec< Dim > &  g0, const AmrGeometry< Dim > &  geo, const std::array< bool, Dim > &  periodic, MPI_Comm  comm  )

inline

Definition at line 246 of file distributed_view.hpp.

References MPI_Comm_size(), and peclet::core::toDevice().

numLevels()

template<int Dim, unsigned Bits = (Dim == 2 ? 32u : (Dim == 3 ? 21u : 16u))>

std::size_t peclet::core::amr::DistributedMultigridView< Dim, Bits >::numLevels ( ) const

inline

Definition at line 314 of file distributed_view.hpp.

numLeaves()

template<int Dim, unsigned Bits = (Dim == 2 ? 32u : (Dim == 3 ? 21u : 16u))>

Index peclet::core::amr::DistributedMultigridView< Dim, Bits >::numLeaves ( std::size_t  L = 0 ) const

inline

Definition at line 315 of file distributed_view.hpp.

op()

template<int Dim, unsigned Bits = (Dim == 2 ? 32u : (Dim == 3 ? 21u : 16u))>

DistributedPoissonView< Dim, Bits > & peclet::core::amr::DistributedMultigridView< Dim, Bits >::op ( std::size_t  L = 0 )

inline

Definition at line 316 of file distributed_view.hpp.

octree()

template<int Dim, unsigned Bits = (Dim == 2 ? 32u : (Dim == 3 ? 21u : 16u))>

Octree & peclet::core::amr::DistributedMultigridView< Dim, Bits >::octree ( std::size_t  L = 0 )

inline

Definition at line 317 of file distributed_view.hpp.

x()

template<int Dim, unsigned Bits = (Dim == 2 ? 32u : (Dim == 3 ? 21u : 16u))>

View< double > peclet::core::amr::DistributedMultigridView< Dim, Bits >::x ( std::size_t  L = 0 )

inline

Definition at line 318 of file distributed_view.hpp.

Referenced by peclet::core::amr::DistributedMultigridView< Dim, Bits >::vcycle().

b()

template<int Dim, unsigned Bits = (Dim == 2 ? 32u : (Dim == 3 ? 21u : 16u))>

View< double > peclet::core::amr::DistributedMultigridView< Dim, Bits >::b ( std::size_t  L = 0 )

inline

Definition at line 319 of file distributed_view.hpp.

Referenced by peclet::core::amr::DistributedMultigridView< Dim, Bits >::vcycle().

vcycle()

template<int Dim, unsigned Bits = (Dim == 2 ? 32u : (Dim == 3 ? 21u : 16u))>

void peclet::core::amr::DistributedMultigridView< Dim, Bits >::vcycle ( View< double >  x, View< const double >  b, int  pre = 2, int  post = 2, int  bottom = 30, std::size_t  L = 0  )

inline

One V-cycle of A x = b on level L (correction scheme); entirely device-resident bar the compact gather buffers + the residual-norm Allreduce.

Definition at line 323 of file distributed_view.hpp.

References peclet::core::amr::DistributedMultigridView< Dim, Bits >::b(), peclet::core::amr::prolongAdd(), peclet::core::amr::restrictField(), peclet::core::amr::DistributedMultigridView< Dim, Bits >::vcycle(), and peclet::core::amr::DistributedMultigridView< Dim, Bits >::x().

Referenced by peclet::core::amr::DistributedMultigridView< Dim, Bits >::vcycle().

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

• distributed_view.hpp