PCMGGetGalerkin

Checks if Galerkin multigrid is being used, i.e. \(A_{i-1} = r_i * A_i * p_i\).

Synopsis

#include "petscksp.h" 
PetscErrorCode PCMGGetGalerkin(PC pc, PCMGGalerkinType *galerkin)

Not Collective

Input Parameter

• pc - the multigrid context

Output Parameter

• galerkin - one of PC_MG_GALERKIN_BOTH,PC_MG_GALERKIN_PMAT,PC_MG_GALERKIN_MAT, PC_MG_GALERKIN_NONE, or PC_MG_GALERKIN_EXTERNAL

See Also

KSP: Linear System Solvers, PCMG, PCMGSetGalerkin(), PCMGGalerkinType, PC_MG_GALERKIN_BOTH, PC_MG_GALERKIN_PMAT, PC_MG_GALERKIN_MAT, PC_MG_GALERKIN_NONE, PC_MG_GALERKIN_EXTERNAL

Level

intermediate

Location

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

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Index of all PC routines
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Index of all manual pages