[san-tech][03583] NCSA Blue Waters deploys Redundant Arrays of Independent Tapes (RAIT)

Date: Thu, 12 Jul 2012 16:03:02 +0900
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2012年 4月 16日～18日に開催された HPC User Forumの資料を見ていて気付いた
のですが、NCSA Blue Watersのテープシステム (Spectra Logic T-Finity Libraries
380 raw petabytes (PB)) では、Redundant Arrays of Independent Tapes (RAIT)
が採用されています。

"Blue Waters"
 Merle Giles, NCSA Business & Economic Development
 HPC User Forum - Richmond VA - April 2012
  http://www.hpcuserforum.com/presentations/richmond2012/GilesRichmondVApdf.pdf

RAIT (Page 12)
*)Multiple data classes depending on file size to take advantage of tape
  writing strategies
    4+1, 7+2, 10+2, etc
    Trade off latency vs performance - Depends on the size of the data
*)Multiple levels of RAIT part of the requirements
    ....
Blue Waters Project
  http://www.ncsa.illinois.edu/BlueWaters/

[san-tech][03582] Slide: LRZ SuperMUC at Workshop: Toward Green Computing Centers (2012/06/28), TERATEC Forum 2012

Date: Thu, 12 Jul 2012 11:32:48 +0900
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2012/07/27
"How many DRAMs does it take to populate a supercomputer?
 746,496 plus a lot of hot water for cooling"
 July 25, 2012, Denali Memory Report
  http://denalimemoryreport.com/2012/07/25/how-many-drams-does-it-take-to-populate-a-supercomputer-746496-plus-a-lot-of-hot-water-for-cooling/

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2012年 6月の TOP500で 4位 (インテル互換系システムとして最速) となった、
Leibniz-Rechenzentrum (LRZ) SuperMUCの講演資料です。
SuperMUCは IBM System x iDataPlexによる温水冷却システムです；

"Energy-efficient High Performance Computing with SuperMUC"
 Arndt BODE, Director
 Leibniz-Supercomputer Center of the Bavarian Academy of Sciences LRZ
 June 28, 2012
 Toward Green Computing Centers, Workshop at TERATEC Forum 2012
  http://www.teratec.eu/library/pdf/forum/2012/presentations/A4_01_FTeratec_2012_Bode.pdf

SuperMUC Petascale System
  http://www.lrz.de/services/compute/supermuc/

[san-tech][03578] Slide: International Workshop on Runtime and Operating Systems for Supercomputers (ROSS 2012), (2012/06/29)

Date: Wed, 11 Jul 2012 14:43:18 +0900
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HPC関係の少し特殊なワークショップですが、気になる発表もあるので紹介します。

International Workshop on
Runtime and Operating Systems for Supercomputers (ROSS 2012)
Held in conjunction with ICS 2012, Venice, Italy, June 29, 2012
  http://www.unixer.de/ross2012/index.html

Scope
"The complexity of node architectures in supercomputers increases
 as we cross petaflop milestones on the way towards Exascale.
 Increasing levels of parallelism in multi- and many-core chips and
 emerging heterogeneity of computational resources coupled with energy
 and memory constraints force a reevaluation of our approaches towards
 operating systems and runtime environments. The International Workshop
 on Runtime and Operating Systems for Supercomputers provides a forum
 for researchers to exchange ideas and discuss research questions that
 are relevant to upcoming supercomputers."

[san-tech][03577] Slide/Video: Velocity 2012 - O'Reilly Conferences (2012/06/25 -27)

Date: Tue, 10 Jul 2012 19:21:30 +0900
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2012年 6月 25日～27日に開催された

O'Reilly Velocity 2012
Web Performance & Operations Conference, June 25 - 27, 2012
  http://velocityconf.com/velocity2012/

の Slide/Videoが公開されています：
Velocity 2012 Speaker Slides & Video
  http://velocityconf.com/velocity2012/public/schedule/proceedings
*)Web Performance
*)Operations
*)Velocity Culture
*)Mobile Performance
*)Sponsored

Velocity 2012 Schedule
  http://velocityconf.com/velocity2012/public/schedule/grid/public-grid


YouTube List:
Velocity US 2012, O'Reilly
  http://www.youtube.com/playlist?list=PL80D9129677893FD8
O'Reilly Channel
  http://www.youtube.com/user/OreillyMedia