HPS papers: A retrospective

Yale N. Patt, Wen Mei W. Hwu, Stephen W. Melvin, Michael C. Shebanow

Research output: Contribution to journalArticlepeer-review


HPS (High Performance Substrate) happened at a time (1984) when the computer architecture community was being inundated with the promises of RISC technology. The first paper provided an introduction to the HPS microarchitecture. The researchers described the rationale for a restricted dataflow machine that schedules operations out of order within an active window of the dynamic instruction stream. The second paper at MICRO 18, the 'Critical Issues'paper, pointed out some of the problems that would have to be solved to make HPS viable. The reaearchers discussed various issues, including caching and control flow, and discussed what we called the 'unknown address problem.'In all, they published more than a dozen papers extending the ideas first put forward in 1985

Original languageEnglish (US)
Article number7542473
Pages (from-to)76-79
Number of pages4
JournalIEEE Micro
Issue number4
StatePublished - 2016

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Electrical and Electronic Engineering


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