PCAIRSetALump

Sets whether PCAIR lumps to the diagonal rather than drops when forming the coarse matrix

Synopsis

PETSC_EXTERN PetscErrorCode PCAIRSetALump(PC pc, PetscBool input_bool)

Logically Collective

Input Parameters

• pc - the PCAIR preconditioner context

• input_bool - PETSC_TRUE to lump to the diagonal rather than drop when forming the coarse matrix

Options Database Key

• -pc_air_a_lump (true|false) - lump to the diagonal rather than drop for the coarse matrix; defaults to false

See Also

KSP: Linear System Solvers, PCAIR, PCAIRGetALump(), PCAIRSetADrop()

Level

advanced

Index of all PC routines
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Index of all manual pages