发明申请
- 专利标题： Executing checker instructions in redundant multithreading environments
- 专利标题（中）： 在冗余多线程环境中执行检查器指令
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申请号： US10953887申请日： 2004-09-29
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公开(公告)号： US20060095821A1公开(公告)日： 2006-05-04
- 发明人: Shubhendu Mukherjee , Joel Emer , Steven Reinhardt , Christopher Weaver
- 申请人： Shubhendu Mukherjee , Joel Emer , Steven Reinhardt , Christopher Weaver
- 主分类号： G06F9/44
- IPC分类号： G06F9/44
摘要：
A method and apparatus for a checker instruction in a redundant multithreading environment is described. In one embodiment, when RMT requires, a processor may issue a checker instruction in both a leading thread and a trailing thread. The checker instruction may travel down individual pipelines for each thread independently until it reaches a buffer at the end of each pipeline. Then, prior to committing the checker instruction, the checker instruction looks for its counterpart and does a comparison of the instructions. If the checker instructions match, the checker instructions commit and retires otherwise an error is declared.
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