petsc-dev 2014-04-16
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PCGAMG

Geometric algebraic multigrid (AMG) preconditioning framework. - This is the entry point to GAMG, registered in pcregis.c

Options Database Keys

Multigrid options(inherited)
-pc_mg_cycles <1>: 1 for V cycle, 2 for W- cycle (PCMGSetCycleType)
-pc_mg_smoothup <1>: Number of post- smoothing steps (PCMGSetNumberSmoothUp)
-pc_mg_smoothdown <1>: Number of pre- smoothing steps (PCMGSetNumberSmoothDown)
-pc_mg_type <multiplicative>: (one of) additive multiplicative full kascade-

See Also

PCCreate(), PCSetType(), PCType (for list of available types), PC, PCMGType,
PCMGSetLevels(), PCMGGetLevels(), PCMGSetType(), PCMGSetCycleType(), PCMGSetNumberSmoothDown(), PCMGSetNumberSmoothUp(), PCMGGetCoarseSolve(), PCMGSetResidual(), PCMGSetInterpolation(), PCMGSetRestriction(), PCMGGetSmoother(), PCMGGetSmootherUp(), PCMGGetSmootherDown(), PCMGSetCyclesOnLevel(), PCMGSetRhs(), PCMGSetX(), PCMGSetR()

Level:intermediate
Location:
src/ksp/pc/impls/gamg/gamg.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/ksp/ksp/examples/tutorials/ex54.c.html
src/ksp/ksp/examples/tutorials/ex55.c.html
src/ksp/ksp/examples/tutorials/ex56.c.html