PCEisenstatNoDiagonalScaling
Causes the Eisenstat preconditioner not to do additional diagonal preconditioning. For matrices with a constant along the diagonal, this may save a small amount of work.
Synopsis
int PCEisenstatNoDiagonalScaling(PC pc)
Collective on PC
Input Parameter
pc -the preconditioner context
Options Database Key
-pc_eisenstat_no_diagonal_scaling -Activates PCEisenstatNoDiagonalScaling()
Keywords
PC, Eisenstat, use, diagonal, scaling, SSOR
See Also
PCEisenstatSetOmega()
Level:intermediate
Location:src/sles/pc/impls/eisen/eisen.c
PC Index
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