본문 바로가기
  • Home

A Hybrid Predictor using Stride Value Predictor Speculative Updates per Issue on Wide-Issue Processors

  • Journal of Knowledge Information Technology and Systems
  • Abbr : JKITS
  • 2012, 7(3), pp.79-89
  • Publisher : Korea Knowledge Information Technology Society
  • Research Area : Interdisciplinary Studies > Interdisciplinary Research
  • Published : June 30, 2012

Byoung-Chan Jeon 1 이영규 2

1청운대학교
2혜천대학교

Accredited

ABSTRACT

In a Superscalar Processor, it is essential to overcome the control dependency and data dependency between instructions by using the instruction level parallelism (ILP). The recent value predictors have a tendency to degrade performance according to the growth of the processor's instruction issue rate. This paper proposes a hybrid predictor that is instruction issue updating speculatively the value of the table without having to wait until the results of the instruction come out to reduce the performance degradation. To verify the validity of the proposed approach, we implement the predictor in SimpleScalar simulator and simulate it with SPECint95 benchmark. We also evaluate the prediction rate, the prediction accuracy, and the performace improvement using the instruction issue (4, 8, 16).

Citation status

* References for papers published after 2023 are currently being built.