PCGAMGSetGraphSymmetrize

Set the flag to symmetrize the graph used in coarsening

Synopsis

#include "petscpc.h" 
PetscErrorCode PCGAMGSetGraphSymmetrize(PC pc, PetscBool b)

Logically Collective

Input Parameters

• pc - the preconditioner context

• b - default false

Options Database Key

• -pc_gamg_graph_symmetrize <bool,default=false> - Symmetrize the graph

See Also

the Users Manual section on PCGAMG, the Users Manual section on PCMG, PCGAMG, PCGAMGSetThreshold(), PCGAMGSetAggressiveLevels(), PCGAMGMISkSetAggressive(), PCGAMGSetAggressiveSquareGraph(), PCGAMGMISkSetMinDegreeOrdering()

Level

intermediate

Location

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

Implementations

PCGAMGSetGraphSymmetrize_AGG() in src/ksp/pc/impls/gamg/agg.c

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