PEPON: Performance-aware hierarchical power budgeting for NoC based multicores

Akbar Sharifi, Asit K. Mishra, Shekhar Srikantaiah, Mahmut Kandemir, Chita R. Das

Research output: Contribution to journalConference articlepeer-review

29 Scopus citations

Abstract

Targeting NoC based multicores, we propose a two-level power budget distribution mechanism, called PEPON, where the first level distributes the overall power budget of the multicore system among various types of on-chip resources like the cores, caches, and NoC, and the second level determines the allocation of power to individual instances of each type of resource. Both these distributions are oriented towards maximizing workload performance without exceeding the specified power budget. Extensive experimental evaluations of the proposed power distribution scheme using a full system simulation and detailed power models emphasize the importance of power budget partitioning at both levels. Specifically, our results show that the proposed scheme can provide up to 29% performance improvement as compared to no power budgeting, and performs 13% better than a competing scheme, under the same chip-wide power cap.

Original languageEnglish (US)
Pages (from-to)65-74
Number of pages10
JournalParallel Architectures and Compilation Techniques - Conference Proceedings, PACT
DOIs
StatePublished - 2012
Event21st International Conference on Parallel Architectures and Compilation Techniques, PACT 2012 - Minneapolis, MN, United States
Duration: Sep 19 2012Sep 23 2012

All Science Journal Classification (ASJC) codes

  • Software
  • Theoretical Computer Science
  • Hardware and Architecture

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