PCDeflationSetLevels#

Set the maximum level of deflation nesting.

Synopsis#

#include "petscksp.h" 
PetscErrorCode PCDeflationSetLevels(PC pc, PetscInt max)

Logically Collective

Input Parameters#

  • pc - the preconditioner context

  • max - maximum deflation level

Options Database Key#

  • -pc_deflation_max_lvl <0> - maximum number of levels for multilevel deflation

See Also#

KSP: Linear System Solvers, PCDeflationSetSpaceToCompute(), PCDeflationSetSpace(), PCDEFLATION

Level#

intermediate

Location#

src/ksp/pc/impls/deflation/deflation.c

Implementations#

PCDeflationSetLevels_Deflation() in src/ksp/pc/impls/deflation/deflation.c


Index of all PC routines
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Index of all manual pages