SNESNASMSetSubdomains#

Manually Set the context required to restrict and solve subdomain problems in the nonlinear additive Schwarz solver

Synopsis#

#include "petscsnes.h"   
PetscErrorCode SNESNASMSetSubdomains(SNES snes, PetscInt n, SNES subsnes[], VecScatter iscatter[], VecScatter oscatter[], VecScatter gscatter[])

Logically Collective

Input Parameters#

  • snes - the SNES context

  • n - the number of local subdomains

  • subsnes - solvers defined on the local subdomains

  • iscatter - scatters into the nonoverlapping portions of the local subdomains

  • oscatter - scatters into the overlapping portions of the local subdomains

  • gscatter - scatters into the (ghosted) local vector of the local subdomain

See Also#

SNES: Nonlinear Solvers, SNES, SNESNASM, SNESNASMGetSubdomains()

Level#

intermediate

Location#

src/snes/impls/nasm/nasm.c

Implementations#

SNESNASMSetSubdomains_NASM() in src/snes/impls/nasm/nasm.c

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