petsc-master 2020-11-30
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PCMGSetAdaptInterpolation

Adapt the interpolator based upon a vector space which should be accurately captured by the next coarser mesh, and thus accurately interpolated.

Synopsis

#include "petscksp.h" 
PetscErrorCode PCMGSetAdaptInterpolation(PC pc, PetscBool adapt)
Logically Collective on PC

Input Parameters

pc - the multigrid context
adapt - flag for adaptation of the interpolator

Options Database Keys

-pc_mg_adapt_interp - Turn on adaptation
-pc_mg_adapt_interp_n <int> - The number of modes to use, should be divisible by dimension
-pc_mg_adapt_interp_coarse_space <type> - The type of coarse space: polynomial, harmonic, eigenvector, generalized_eigenvector

Keywords

MG, set, Galerkin

See Also

PCMGGetAdaptInterpolation(), PCMGSetGalerkin()

Level

intermediate

Location

src/ksp/pc/impls/mg/mg.c

Implementations

PCMGSetAdaptInterpolation_MG in src/ksp/pc/impls/mg/mg.c

Index of all PC routines
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Index of all manual pages