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_TRUEto 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#
Implementations#
PCGAMGSetParallelCoarseGridSolve_GAMG() in src/ksp/pc/impls/gamg/gamg.c
Index of all PC routines
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Index of all manual pages