Here are the data structures with brief descriptions:

Cexecutioncontext_t	Struct to pass a simulation's technical execution information to the ticks
Cnodeinputseries_t	Struct to store the input for the simulation for a single node
Cnodestate_t	Struct to store the status of one node
Cnodetimeseries_t	Struct to store the results of a simulation for a single observed node
Cpartialsimulationcontext_t	Struct to pass all execution information to a new thread for executing a tick (or parts thereof)