(Optional) Defines the outer relaxation weight for hybrid SOR and SSOR on all levels
(Optional) Defines the outer relaxation weight for hybrid SOR and SSOR on all levels.
omega > 0 this assigns the same outer relaxation weight omega on each level omega = -k an outer relaxation weight is determined with at most k CG steps on each level (this only makes sense for symmetric positive definite problems and smoothers, e.g. SSOR) The default is 1.
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