:orphan: # PCMGSetType Determines the form of multigrid to use: multiplicative, additive, full, or the Kaskade algorithm. ## Synopsis ``` #include "petscksp.h" PetscErrorCode PCMGSetType(PC pc, PCMGType form) ``` Logically Collective ## Input Parameters - ***pc -*** the preconditioner context - ***form -*** multigrid form, one of `PC_MG_MULTIPLICATIVE`, `PC_MG_ADDITIVE`, `PC_MG_FULL`, `PC_MG_KASKADE` ## Options Database Key - ***-pc_mg_type