The simulated system and the transmission side mimicking device and the simulated program which use logical clock

摘要

PPROBLEM TO BE SOLVED: To raise simulation speed in a distributed simulation system for simulating a mobile body based on logical time by reducing the advancing frequency of the logical time. PSOLUTION: The simulation system performs, when movement information of the mobile body is exchanged between logical processors, extrapolation processing with the same algorithm in both the logical processors on the transmitting side and receiving side of the movement information. The transmitting-side logical processor determines whether movement information by simulation processing of the mobile body (simulation movement information) is matched to movement information by extrapolation processing (extrapolation movement information) even at a future time, in addition to transmission of the simulation movement information to the receiving-side processor only when it is differed from the extrapolation movement information, and takes, when both are matched, the time up to the future time as a request time of the following time to a distributed simulation board. Accordingly, the advancing frequency of the logical time can be reduced in addition to reduction in the transmitting frequency of movement information, and high-speed simulation can be performed. PCOPYRIGHT: (C)2010,JPO&INPIT