up

How fixed are we on the term "root"? I'm trying to recall other words that we have used or would use to describe inputs that have no upstream. I just want to make sure this is the best we have come up with.

SourceInputManager
StandaloneInputManager
UnattachedInputManager
OriginatingInputManager
SeedInputManager

My other comment is here is that we are kind of retreating from notion of being able to use solids you don't control or don't want to alter upstream of a solid you are working on. I was quite fond of that when we got there but it certainly introduced confusion on other dimensions. I just want to be explicit about the tradeoff we are making and to be sure we are comfortable with it. Namely, you cannot specify input loading behavior independent of the IOManager attached to the upstream output.

How fixed are we on the term "root"? I'm trying to recall other words that we have used or would use to describe inputs that have no upstream. I just want to make sure this is the best we have come up with.

Definitely not fixed. SourceInputManager sounds at least as good to me. Some more ideas:

• UnconnectedInputManager
• NoDependencyInputManager

My other comment is here is that we are kind of retreating from notion of being able to use solids you don't control or don't want to alter upstream of a solid you are working on. I was quite fond of that when we got there but it certainly introduced confusion on other dimensions. I just want to be explicit about the tradeoff we are making and to be sure we are comfortable with it. Namely, you cannot specify input loading behavior independent of the IOManager attached to the upstream output.

I think "you cannot specify input loading behavior independent of the IOManager attached to the upstream output" is definitely accurate. I do think there is a difference between "you cannot specify input loading behavior independent of the IOManager attached to the upstream output" and "retreating from notion of being able to use solids you don't control". Solids only specify their manager keys, not their manager implementations. The pipeline definer ultimately decides how intermediates are stored/loaded.