HydraScalar : A Multipath-Capable Simulator

  title={HydraScalar : A Multipath-Capable Simulator},
  author={Kevin Skadron and Pritpal S. Ahuja},
Even sophisticated branch-prediction techniques necessarily suffer some mispredictions, and even relatively small mispredict rates hurt performance substantially in current-generation processors. This suggests the study of multipath execution, in which the processor simultaneously executes code from both the taken and not-taken outcomes of a branch. This paper describes HydraScalar, a simulator built on the SimpleScalar toolkit (version 2.0) to accurately model a wideissue, out-of-order… CONTINUE READING


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