If by 'handle cycles', you mean 'throw an exception', then yes :). Graph models single-pass data flows, which must be acyclic, and the (graph) constructer and (*-compile) methods throw if you give them cyclic specifications. Do you have a particular use case in mind where cycles are desirable?
I see. For streaming computations we typically have a Graph behind a thread pool, so a node can always resubmit a datum for another go-round -- there's no concept of sending an updated datum 'back' to another node within a particular execution though.
If by 'handle cycles', you mean 'throw an exception', then yes :). Graph models single-pass data flows, which must be acyclic, and the (graph) constructer and (*-compile) methods throw if you give them cyclic specifications. Do you have a particular use case in mind where cycles are desirable?