hypre BoomerAMG algebraic-multigrid preconditioner for the 2D surface CVODE solver (PRECONDITIONER=AMG). More...

#include "SurfaceJacobian.hpp"
#include <vector>

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Classes
class	openswmm::twoD::HypreAmgPreconditioner
	BoomerAMG preconditioner over the 2D diffusion Newton matrix. More...

Namespaces
namespace	openswmm

namespace	openswmm::twoD

Detailed Description

hypre BoomerAMG algebraic-multigrid preconditioner for the 2D surface CVODE solver (PRECONDITIONER=AMG).

Wraps a hypre IJ/ParCSR matrix + BoomerAMG hierarchy behind the CVODE CVodeSetPreconditioner(psetup, psolve) surface — the same surface the Jacobi heuristic uses, so the linear-solver stack is unchanged: GMRES stays matrix-free (finite-difference J·v) for the true operator, and this preconditioner inverts the assembled approximate Newton matrix M = I − γ·J (the diffusion stencil from SurfaceJacobian). One BoomerAMG V-cycle per psolve gives near-mesh-independent Krylov iteration counts.

hypre is called single-process (sequential build, MPI_COMM_WORLD = mpistubs no-op). Only compiled when OPENSWMM_WITH_HYPRE is ON; the header is hypre-free (opaque handles) so it is safe to include from guarded code without leaking HYPRE.h.

Author: Caleb Buahin caleb.nosp@m..bua.nosp@m.hin@g.nosp@m.mail.nosp@m..com

License\n MIT License

Classes

Namespaces

Detailed Description