ILUTPPreconditionerFill | 
| Exception | Condition | 
|---|---|
| ArgumentOutOfRangeException | Thrown if a negative value is provided. | 
Values should always be positive and can be higher than 1.0. A value lower than 1.0 means that the eventual preconditioner matrix will have fewer non-zero entries as the original matrix. A value higher than 1.0 means that the eventual preconditioner can have more non-zero values than the original matrix.
Note that any changes to the FillLevel after creating the preconditioner will invalidate the created preconditioner and will require a re-initialization of the preconditioner.