openswmm::twoD::gpu::KokkosAmgPreconditioner Class Reference

BoomerAMG preconditioner over the Kokkos surface Newton matrix. More...

#include <KokkosAmgPreconditioner.hpp>

Collaboration diagram for openswmm::twoD::gpu::KokkosAmgPreconditioner:

Public Member Functions
	KokkosAmgPreconditioner ()=default
	~KokkosAmgPreconditioner ()
	KokkosAmgPreconditioner (const KokkosAmgPreconditioner &)=delete
KokkosAmgPreconditioner &	operator= (const KokkosAmgPreconditioner &)=delete
void	initialize (const MeshViews &mesh)
void	setup (const MeshViews &mesh, const StateViews &state, double gamma, bool recompute)
void	solve (DView r, DView z, double gamma)
	Apply one BoomerAMG V-cycle: z ≈ M⁻¹ r (Views in the plugin's MemSpace).
void	finalize ()
bool	ready () const noexcept
void	invalidate () noexcept

Detailed Description

BoomerAMG preconditioner over the Kokkos surface Newton matrix.

Lives entirely in the plugin's ExecSpace/MemSpace. Construct once, then per CVODE psetup call setup(), per psolve call solve().

Constructor & Destructor Documentation

KokkosAmgPreconditioner() [1/2]

openswmm::twoD::gpu::KokkosAmgPreconditioner::KokkosAmgPreconditioner ( )

default

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~KokkosAmgPreconditioner()

openswmm::twoD::gpu::KokkosAmgPreconditioner::~KokkosAmgPreconditioner

(

)

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KokkosAmgPreconditioner() [2/2]

openswmm::twoD::gpu::KokkosAmgPreconditioner::KokkosAmgPreconditioner ( const KokkosAmgPreconditioner & )

delete

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Member Function Documentation

finalize()

void openswmm::twoD::gpu::KokkosAmgPreconditioner::finalize

(

)

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initialize()

void openswmm::twoD::gpu::KokkosAmgPreconditioner::initialize

(

const MeshViews &

mesh

)

Build static CSR sparsity from the mesh topology + allocate hypre objects in the active memory location. Call once per solver initialize().

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invalidate()

void openswmm::twoD::gpu::KokkosAmgPreconditioner::invalidate ( )

inlinenoexcept

Drop the lagged-reuse cache: the next setup() rebuilds the matrix and hierarchy regardless of the recompute flag. Call after the solver state is re-seeded (CVodeReInit).

operator=()

KokkosAmgPreconditioner & openswmm::twoD::gpu::KokkosAmgPreconditioner::operator= ( const KokkosAmgPreconditioner & )

delete

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ready()

bool openswmm::twoD::gpu::KokkosAmgPreconditioner::ready ( ) const

inlinenoexcept

setup()

void openswmm::twoD::gpu::KokkosAmgPreconditioner::setup	(	const MeshViews &	mesh,
		const StateViews &	state,
		double	gamma,
		bool	recompute )

Assemble M = I − γ·J from the current Views and (re)build the hierarchy. When recompute is false and a hierarchy exists, the prior matrix + hierarchy are reused verbatim (CVODE's lagged-preconditioner policy — mirrors the serial HypreAmgPreconditioner).

solve()

void openswmm::twoD::gpu::KokkosAmgPreconditioner::solve	(	DView	r,
		DView	z,
		double	gamma )

Apply one BoomerAMG V-cycle: z ≈ M⁻¹ r (Views in the plugin's MemSpace).

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

• /home/runner/work/openswmm.engine/openswmm.engine/src/engine/2d/gpu/KokkosAmgPreconditioner.hpp
• /home/runner/work/openswmm.engine/openswmm.engine/src/engine/2d/gpu/KokkosAmgPreconditioner.cpp