PCGAMGType#

type of generalized algebraic multigrid PCGAMG method

Synopsis#

typedef const char *PCGAMGType;
#define PCGAMGAGG       "agg"
#define PCGAMGGEO       "geo"
#define PCGAMGCLASSICAL "classical"

`PCGAMGAGG` - (the default) smoothed aggregation algorithm, robust, very well tested
`PCGAMGGEO` - geometric coarsening, uses mesh generator to produce coarser meshes, limited to triangles, not well tested
`PCGAMGCLASSICAL` - classical algebraic multigrid preconditioner, incomplete, poorly tested

See Also#

PCMG, PCSetType(), PCGAMGSetThreshold(), PCGAMGSetThreshold(), PCGAMGSetReuseInterpolation()

Level#

intermediate

Location#

include/petscpctypes.h


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