just curious why "subroutine" disappear in NXG?

[Heartnode]

Some VIs play an important role in calculation and they are usually set subroutine by me. Now in NXG it seems disappear and there is an option for stateful and stateless(and the default value:none) in behavior property-execution. Could somebody explains something for these?

[MichaelBalzer · Accepted solution]

I think those options relate to the reentrancy of a subVI, and not the execution priority. See this help page for more information: http://www.ni.com/documentation/en/labview/latest/g-prog/choose-right-vi-reentrancy/ 

As of NXG 3.0, it doesn't look like VI priorities are supported. Converting code from LabVIEW to NXG which has the subVI priority set throws a VIPriorityNotSupported warning: https://www.ni.com/docs/en-US/bundle/labview-nxg-migrating-code/page/vi-priority-not-supported.html