All:
This is rather short notice, but in case you’re interested in how time stepping in its many different incarnations works in ASPECT (and a bit of a historical overview of how my thinking about it as well as the implementation has evolved): I am giving a talk at a workshop tomorrow morning at 9am East Coast time, see
ICERM - Holistic Design of Time-Dependent PDE Discretizations
The whole program is life-streamed at
ICERM - Live Stream
Best
Wolfgang