PCAIRSetSmoothType

Sets the type and number of smooths used by the PCAIR reduction multigrid

Synopsis

PETSC_EXTERN PetscErrorCode PCAIRSetSmoothType(PC pc, const char* input_string)

Logically Collective

Input Parameters

• pc - the PCAIR preconditioner context

• input_string - the smoothing pattern, any sequence of f and c characters giving the type and number of smooths (for example ff, fc, fcf, ffc, …)

Options Database Key

• -pc_air_smooth_type input_string - the type and number of smooths, any sequence of f and c characters (for example ff, fc, fcf); defaults to ff

Note

Each f performs a smooth on the F points and each c a smooth on the C points; the string may be any combination and length, not only ff, fc, or fcf.

See Also

KSP: Linear System Solvers, PCAIR, PCAIRGetSmoothType(), PCAIRSetInverseType(), PCAIRSetFullSmoothingUpAndDown()

Level

intermediate

Index of all PC routines
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Index of all manual pages