On table bandwidth and its update delay for value prediction on wide-issue ILP processors

Sang Jeong Lee, Pen Chung Yew

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We study two issues which could affect the performance of value prediction on wide-issue ILP processors. One is the large number of accesses to the value prediction tables needed in each machine cycle and the other is the delay required to update stale values in the value prediction tables. We introduce a prediction value cache (PVC) which augments the instruction cache to hold the prediction values to handle these issues.

Original languageEnglish (US)
Pages (from-to)847-852
Number of pages6
JournalIEEE Transactions on Computers
Volume50
Issue number8
DOIs
StatePublished - Aug 1 2001

Keywords

  • Decoupled value prediction
  • Dynamic classification
  • Prediction value cache

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