Integrated circuit simulation method and system

A simulation system for an IC, comprising:

• an initiation module, adapted to provide a circuit netlist and a logic simulation result of a circuit to be simulated;
• a simulation time window division module, adapted to divide simulation time points in the circuit netlist into N consecutive simulation time windows, wherein each of the simulation time windows comprises consecutive simulation time points from a simulation window starting point to a simulation window ending point, with the simulation window starting point of the (n+1)th simulation time window being a simulation time point prior to the simulation window ending point of the nth simulation time window so that there is an overlap time region between adjacent simulation time windows, where N and n are integers, 1≦n<N;
• a simulation initial data determination module, adapted to determine circuit simulation initial data at its simulation window starting point for each of the simulation time windows based on a logic state value of a time point in the logic simulation result that corresponds to the simulation window starting point of each of the simulation time windows;
• a parallel simulation module, adapted to perform circuit simulation calculations for respective simulation time windows in parallel, based on the circuit simulation initial data for each of the simulation time windows, with the circuit simulation calculation for the nth simulation time window stopped within the overlap time region between the nth simulation time window and the (n+1)th simulation time window;
• and
• a simulation result combination module, adapted to combine results of the circuit simulation calculations for respective simulation time windows, so as to obtain a simulation result of the circuit to be tested comprising all the simulation time points in the circuit netlist.