PCGAMGSetParallelCoarseGridSolve

allow a parallel coarse grid solver

Synopsis

#include "petscpc.h" 
#include "petscksp.h" 
PetscErrorCode PCGAMGSetParallelCoarseGridSolve(PC pc, PetscBool flg)

Collective

Input Parameters

• pc - the preconditioner context

• flg - PETSC_TRUE to not force coarse grid onto one processor

Options Database Key

• -pc_gamg_parallel_coarse_grid_solver - use a parallel coarse grid solver

See Also

the Users Manual section on PCGAMG, the Users Manual section on PCMG, KSP: Linear System Solvers, PCGAMG, PCGAMGSetCoarseGridLayoutType(), PCGAMGSetCpuPinCoarseGrids(), PCGAMGSetRankReductionFactors()

Level

intermediate

Location

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

Implementations

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

---

Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages