petsc-master 2019-10-12
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PCGAMGSetThresholdScale

Relative threshold reduction at each level

Synopsis

#include "petscpc.h" 
PetscErrorCode PCGAMGSetThresholdScale(PC pc, PetscReal v)
Not collective on PC

Input Parameters

pc - the preconditioner context
scale - the threshold value reduction, ussually < 1.0

Options Database Key

-pc_gamg_threshold_scale <v> -

See Also

()

Level

advanced

Location

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

Implementations

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

Index of all PC routines
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Index of all manual pages