Analyzing and mitigating the impact of manufacturing variability in power-constrained supercomputing

Yuichi Inadomi, Tapasya Patki, Koji Inoue, Mutsumi Aoyagi, Barry Rountree, Martin Schulz, David Lowenthal, Yasutaka Wada, Keiichiro Fukazawa, Masatsugu Ueda, Masaaki Kondo, Ikuo Miyoshi

研究成果: Conference contribution

66 被引用数 (Scopus)

抄録

A key challenge in next-generation supercomputing is to effectively schedule limited power resources. Modern processors suffer from increasingly large power variations due to the chip manufacturing process. These variations lead to power inhomogeneity in current systems and manifest into performance inhomogeneity in power constrained environments, drastically limiting supercomputing performance. We present a first-of-its-kind study on manufacturing variability on four production HPC systems spanning four microarchitectures, analyze its impact on HPC applications, and propose a novel variation-aware power budgeting scheme to maximize effective application performance. Our low-cost and scalable budgeting algorithm strives to achieve performance homogeneity under a power constraint by deriving application-specific, module-level power allocations. Experimental results using a 1,920 socket system show up to 5.4X speedup, with an average speedup of 1.8X across all benchmarks when compared to a variation-unaware power allocation scheme.

本文言語English
ホスト出版物のタイトルProceedings of SC 2015
ホスト出版物のサブタイトルThe International Conference for High Performance Computing, Networking, Storage and Analysis
出版社IEEE Computer Society
ISBN(電子版)9781450337236
DOI
出版ステータスPublished - 2015 11月 15
外部発表はい
イベントInternational Conference for High Performance Computing, Networking, Storage and Analysis, SC 2015 - Austin, United States
継続期間: 2015 11月 152015 11月 20

出版物シリーズ

名前International Conference for High Performance Computing, Networking, Storage and Analysis, SC
15-20-November-2015
ISSN(印刷版)2167-4329
ISSN(電子版)2167-4337

Conference

ConferenceInternational Conference for High Performance Computing, Networking, Storage and Analysis, SC 2015
国/地域United States
CityAustin
Period15/11/1515/11/20

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • コンピュータ サイエンスの応用
  • ハードウェアとアーキテクチャ
  • ソフトウェア

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