一种改进的SMT模拟器——支持Oracle机制和多种取指策略

An Improved SMT Simulator——Supporting Oracle Mechanism and Multiple Fetch Policies

模拟器是计算机系统设计中非常重要的一种技术。O racle研究能够用来确定所研究问题的最优或最差情况,为正常研究提供有用的辅助信息。但是现在常用的一些同步多线程(SM T)模拟器都不能提供支持O racle研究所需的信息。文章结合原有模拟器的基础,提供了一种新的支持O racle研究的模拟平台。同时原SM T模拟器只支持ICO UNT这一种取指策略,文章在原模拟器基础上,又增加了BR COU NT和M ISSCO UNT这两种通用的取指策略。

Computer simulation is a vital technology in the computer system design.Oracle study can make certain the best and worst circumstance of the researched problem,and can provide some useful assistant information.However,many popular Simultaneous Multi-Threading(SMT)simulators can't provide extensive support for Oracle studies.This paper proposes a novel SMT infrastructure that is well-suited for Oracle studies.Meanwhile,original SMT simulator provides only one fetch policy,which is ICOUNT.So BRCOUNT and MISSCOUNT are added to this new simulation infrastructure as additional fetch policies.