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	<title>Comments on: Exascale, What about Exalead?</title>
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	<link>http://arnoldit.com/wordpress/2009/12/08/exascale-what-about-exalead/</link>
	<description>by Stephen E. Arnold</description>
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		<title>By: Eric Rogge</title>
		<link>http://arnoldit.com/wordpress/2009/12/08/exascale-what-about-exalead/comment-page-1/#comment-83098</link>
		<dc:creator>Eric Rogge</dc:creator>
		<pubDate>Tue, 08 Dec 2009 18:11:46 +0000</pubDate>
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		<description>Thanks Stephen for the reference. Indeed, Exalead&#039;s original design goal was to ultimately index and search Exabyte data sets (10 power 19 bytes). Hence the company name. We&#039;re well on our way, using commodity server technology to do this. I think there are a couple of design challenges which are not mutually exclusive. Challenge #1 is designing software that, regardless of hardware architecture, can handle that amount of data. We&#039;re on that at Exalead. The other challenge is creating a performance/price leading architecture for that. That&#039;s Challenge #2. Commodity hardware architectures have their strengths and weaknesses. Low design costs and high volume manufacturing keep amortized design and fixed costs low for commodity system-based architectures. On the other hand I/O inefficiencies, due to sub-optimal I/O back planes can drive system quantities up. Systems designed to solve this problem may be cost effective if the design costs, fixed costs and margins are held in check.</description>
		<content:encoded><![CDATA[<p>Thanks Stephen for the reference. Indeed, Exalead&#8217;s original design goal was to ultimately index and search Exabyte data sets (10 power 19 bytes). Hence the company name. We&#8217;re well on our way, using commodity server technology to do this. I think there are a couple of design challenges which are not mutually exclusive. Challenge #1 is designing software that, regardless of hardware architecture, can handle that amount of data. We&#8217;re on that at Exalead. The other challenge is creating a performance/price leading architecture for that. That&#8217;s Challenge #2. Commodity hardware architectures have their strengths and weaknesses. Low design costs and high volume manufacturing keep amortized design and fixed costs low for commodity system-based architectures. On the other hand I/O inefficiencies, due to sub-optimal I/O back planes can drive system quantities up. Systems designed to solve this problem may be cost effective if the design costs, fixed costs and margins are held in check.</p>
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