摘要
lookahead是HLA时间管理服务中的重要概念。looka-head值是在仿真执行过程中由用户自己设置的。Lookahead的值为零是一种特殊情况,它在实际仿真系统中会经常出现,IEEE标准专门为此做了规定。如果多个联邦成员都有lookahead为零,可能会造成逻辑时间推进的死锁状态。讨论了引入lookahead的意义,并分析了lookahead为零时死锁的规律性,了解了这些规律后,就能有效地避免死锁,从而使仿真过程更加顺利地进行。
Lookahead is an important concept in the time management service of HLA. The value of lookahead is set by the user during the simulation execution process, It＇s a special situation that lookahead is set to zero, which will appear frequently in the actual simulation system, and the IEEE Standard makes rules for it specially, If several federates set their lonkahead to be zero, deadlock will be resulted, The reason why lookahead is introduced is discussed, and the laws of deadlock when lookahead is zero are analyzed. If these laws are well known, the deadlock can be avoided efficiently, and the simulation process will go on freely.
出处
《微计算机信息》
北大核心
2005年第09X期162-164,共3页
Control & Automation
基金
国防预研基金资助项目(6011120)
