PCGASMSetType

Sets the type of restriction and interpolation used for local problems in the PCGASM additive Schwarz method.

Synopsis

#include "petscpc.h" 
PetscErrorCode PCGASMSetType(PC pc, PCGASMType type)

Logically Collective

Input Parameters

• pc - the preconditioner context

• type - variant of PCGASM, one of

      `PC_GASM_BASIC`       - full interpolation and restriction
      `PC_GASM_RESTRICT`    - full restriction, local MPI process interpolation
      `PC_GASM_INTERPOLATE` - full interpolation, local MPI process restriction
      `PC_GASM_NONE`        - local MPI process restriction and interpolation

Options Database Key

• -pc_gasm_type [basic,restrict,interpolate,none] - Sets PCGASM type

See Also

KSP: Linear System Solvers, PCGASM, PCGASMSetSubdomains(), PCGASMGetSubKSP(), PCGASMCreateSubdomains2D(), PCASM, PCASMSetType()

Level

intermediate

Location

src/ksp/pc/impls/gasm/gasm.c

Implementations

PCGASMSetType_GASM() in src/ksp/pc/impls/gasm/gasm.c

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