I agree, I was just using ilu as sort of a well known example. Also, because ILU0 has no fill-in, it should (IMO) be considered the “baseline” in the sense that

I agree, I was just using ilu as sort of a well known example. Also, because ILU0 has no fill-in, it should (IMO) be considered the “baseline” in the sense that not trying it should be justified somehow.