PCGAMGSetCoarseGridLayoutType

place coarse grids on processors with natural order (compact type)

Synopsis

#include "petscpc.h" 
#include "petscksp.h" 
PetscErrorCode PCGAMGSetCoarseGridLayoutType(PC pc, PCGAMGLayoutType flg)

Collective

Input Parameters

• pc - the preconditioner context

• flg - PCGAMGLayoutType type, either PCGAMG_LAYOUT_COMPACT or PCGAMG_LAYOUT_SPREAD

Options Database Key

• -pc_gamg_coarse_grid_layout_type - place the coarse grids with natural ordering

See Also

the Users Manual section on PCGAMG, the Users Manual section on PCMG, KSP: Linear System Solvers, PCGAMG, PCGAMGSetParallelCoarseGridSolve(), PCGAMGSetCpuPinCoarseGrids(), PCGAMGLayoutType, PCGAMG_LAYOUT_COMPACT, PCGAMG_LAYOUT_SPREAD

Level

intermediate

Location

src/ksp/pc/impls/gamg/gamg.c

Implementations

PCGAMGSetCoarseGridLayoutType_GAMG() in src/ksp/pc/impls/gamg/gamg.c

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