PCLUSetZeroPivot

 Sets the size at which smaller pivots are declared to be zero

Synopsis

#include "petscpc.h" 
int PCLUSetZeroPivot(PC pc,PetscReal zero)
Collective on PC

Input Parameters

pc - the preconditioner context
zero - all pivots smaller than this will be considered zero

Options Database Key

-pc_ilu_zeropivot <zero> -Sets the zero pivot size

Keywords

PC, set, factorization, direct, fill

See Also

PCLUSetFill(), PCLUSetDamp(), PCILUSetZeroPivot()

Level:intermediate
Location:src/sles/pc/impls/lu/lu.c
Index of all PC routines
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