Talk:Sequoia (supercomputer)

2012

Well, it's 2012. Anyone with news? — Preceding unsigned comment added by 187.113.201.87 (talk) 02:44, 20 January 2012 (UTC)

Power efficiency

The beginning of the article says "In addition to being 55% faster than K, IBM Sequoia is also 150% more energy efficient." and in the end "The Sequoia design will perform 3000 Mflops/watt, about 7 times as efficient as the Blue Gene/P design it is replacing, and more than 3 times as efficient as the current (as of June 2011) Top 500 leader.". So 150% or 3 times ? --Martvefun (talk) 07:15, 19 June 2012 (UTC)

Also, the beginning of the article says "Sequoia is also more energy efficient, as it consumes 7.9 MW", but in the last section, it says that Sequoia uses nearly 6 MW of power. I will try to figure out which it is, 7.9 MW or slightly less than 6 MW! --FeralOink (talk) 13:04, 17 July 2012 (UTC)

Sockets are not cores are not sockets

The article had originally said 123% more (ie 2.23 times) sockets than the K Computer (previous record holder), however the cite given refers to cores. The numbers stack up based on cores ie 705024 vs 1572864. Sockets is generally used to refer to the number of socketed CPU packages, which these days are typically multi-core, but core density per socket varies, so it can be a useful number. For what it is worth, the K computer has 8 Core Sparc VIIIfx CPUs, so 88,128 sockets whereas the Sequoia has 16 core PowerPC A2s, so 98,304 sockets. However, I suspect that the CPUs themselves may not be socketed as such, possibly surface mounted. 60.240.207.146 (talk) 12:56, 20 December 2012 (UTC)

External links modified

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• Added archive https://web.archive.org/web/20110807145429/https://hpcrd.lbl.gov/scidac09/talks/Seager-Sequoia4SciDACv1.pdf to https://hpcrd.lbl.gov/scidac09/talks/Seager-Sequoia4SciDACv1.pdf
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• Added {{dead link}} tag to http://www.green500.org/lists/2011/06/top/list.php
• Added archive https://web.archive.org/web/20110526004140/http://www-304.ibm.com/jct03004c/press/us/en/pressrelease/26599.wss to http://www-304.ibm.com/jct03004c/press/us/en/pressrelease/26599.wss

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usefulness

no data on idle time , no data on offline storage, no data on error correction, no data on if SIMD or MIMD machine, or front end, or failure of linux to support realtime processing.

no data on security faults, down time, diagnostics, ok im tired ill stop Juror1 (talk) 13:41, 15 November 2017 (UTC)