petsc-3.12.5 2020-03-29
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PCGAMGSetUseParallelCoarseGridSolve

 allow a parallel coarse grid solver

Synopsis

#include "petscpc.h" 
PetscErrorCode PCGAMGSetUseParallelCoarseGridSolve(PC pc, PetscBool flg)
Collective on PC

Input Parameters

pc - the preconditioner context
flg - PETSC_TRUE to not force coarse grid onto one processor

Options Database Key

-pc_gamg_use_parallel_coarse_grid_solver -

See Also

PCGAMGSetCoarseGridLayoutType(), PCGAMGSetCpuPinCoarseGrids()

Level

intermediate

Location

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

Implementations

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

Index of all PC routines
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Index of all manual pages