Reducing power with dynamic critical path information

Reducing power with dynamic critical path information
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利用动态关键路径信息降低功耗

DOI:
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发表时间:
2001
期刊:
Proceedings. 34th ACM/IEEE International Symposium on Microarchitecture. MICRO-34
影响因子:
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通讯作者:
D. Tullsen
D. Tullsen
中科院分区:
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文献类型:
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作者:
J. Seng;Eric Tune;D. Tullsen

文献摘要

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最近的研究表明,有关指令关键性的动态信息可以用来提高微处理器的性能。关键路径信息也可以在处理器中使用,以实现功率和性能的更好平衡。本文使用动态关键路径预测器的输出来降低处理器关键部分的功耗,而不会导致相应的性能下降。优化包括有效使用具有不同功率和延迟特性的功能单元以及降低的发布逻辑功率。
Recent research has shown that dynamic information regarding instruction criticality can be used to increase microprocessor performance. Critical path information can also be used in processors to achieve a better balance of power and performance. This paper uses the output of a dynamic critical path predictor to decrease the power consumption of key portions of the processor without incurring a corresponding decrease in performance. The optimizations include effective use of functional units with different power and latency characteristics and decreased issue logic power.