petsc-3.12.5 2020-03-29
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PCGAMGSetSymGraph

 Symmetrize the graph before computing the aggregation. Some algorithms require the graph be symmetric

Synopsis

#include "petscpc.h" 
PetscErrorCode PCGAMGSetSymGraph(PC pc, PetscBool n)
Not Collective on PC

Input Parameters

pc - the preconditioner context
n - PETSC_TRUE or PETSC_FALSE

Options Database Key

-pc_gamg_sym_graph <true,default=false> -symmetrize the graph before computing the aggregation

See Also

PCGAMGSetSquareGraph()

Level

intermediate

Location

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

Implementations

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

Index of all PC routines
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Index of all manual pages