PCGAMGType#

type of generalized algebraic multigrid PCGAMG method

Synopsis#

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

Values#

  • PCGAMGAGG - (the default) smoothed aggregation algorithm, robust, very well tested

  • PCGAMGGEO - geometric coarsening, uses mesh generator to produce coarser meshes, limited to triangles, not supported, reference implementation (2D)

  • PCGAMGCLASSICAL - classical algebraic multigrid preconditioner, incomplete, not supported, reference implementation

See Also#

Preconditioners, PCGAMG, PCMG, PC, PCSetType(), PCGAMGSetThreshold(), PCGAMGSetThreshold(), PCGAMGSetReuseInterpolation()

Level#

intermediate

Location#

include/petscpctypes.h

Index of all PC routines
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