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Technology Stocks : Advanced Micro Devices - Moderated (AMD)

AMD 215.11

+0.1%

Dec 24 12:59 PM EST

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To: fyodor_ who wrote (72045)	2/20/2002 6:00:27 PM
From: eCo	Read Replies (1) of 275872

fyo:The problem with that is that clusters are just simply not as stable. Link please. :) According to the Linux parallel processing 'HowTo', one of the upsides to a cluster is: "The fact that replacing a "bad machine" within a cluster is trivial compared to fixing a partly faulty SMP yields much higher availability for carefully designed cluster configurations." However, the downsides are: "With a few exceptions, network hardware is not designed for parallel processing. Typically latency is very high and bandwidth relatively low compared to SMP and attached processors." And also: "There is very little software support for treating a cluster as a single system." linuxdoc.org remember the Enterprise Customer survey... Yeah, I saw that. But that list is based on a paradigm of non-replaceable boxes. If you've got $2-3k machines in there instead of $10-15K boxes, swapping a unit out becomes more cost-effective than putting more resources in "reliability" and "quality of service". All IMHO, of course. eCo

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