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[Toms] Intel Patents Redundant Cores In a Many-Core Processor

post #1 of 14
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Intel Patents Redundant Cores In a Many-Core Processor
Quote:
According to the patent, increasingly complex processors with a greater number of cores, referred to as many-core processors by the company, will see higher failure rates than single- or dual-core processors. In fact, the patent states that the lifetime of a core may "shorten from generation to generation." The reasons include electromigration, stress migration, time dependent dielectric breakdown, negative bias temperature instability (NBTI), and thermal cycling.

Source: Toms Hardware
http://www.tomshardware.co.uk/intel-patent-many-core-processor-multicore,news-37252.html
 
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post #2 of 14
This (Shortening of lifespan) probably wont have an affect on consumer processors as much as server based stuff as theirs run constantly and are always processing data.
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post #3 of 14
Quote:
Originally Posted by Twinnuke View Post

This (Shortening of lifespan) probably wont have an affect on consumer processors as much as server based stuff as theirs run constantly and are always processing data.

Unless you're doing f@h.
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post #4 of 14
From the article:
Quote:
There is no indication when Intel will actually use such a technology, but the examples in the patent start with at least 32 cores total, which use 16 active and 16 spare cores.
Don't have to worry for quite a while, it seems wink.gif
post #5 of 14
So...they are make a plan for if a core dies the CPU will remain active if the other cores are still OK?

Sounds awesome for overclocking. A hiccup in the one weak core that made it through a stress test some how shouldn't throw a BSoD if this system works. And if it recovered it would become active again. Should work well as long as you aren't using all the cores at 100%. If you were maxing out the CPU you'd see a huge drop in performance when it happened, but if not I'd think it would be just tiny short lived dip.

Though maybe it would be bad...since a CPU might seem more stable than it really is. Stress test software would just need to throw an error if one of the core suddenly dropped out of the loop though. We would probably have to see it in operation first to really know. It might only be on the locked server CPUs anyway.
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post #6 of 14
Doesn't a PS3 have 1 of it's 8 cores set aside for redundancy?
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post #7 of 14
Quote:
Originally Posted by Twinnuke View Post

This (Shortening of lifespan) probably wont have an affect on consumer processors as much as server based stuff as theirs run constantly and are always processing data.

It may have an impact if we ever move towards something like 64-core CPUs for home use in 1-2 decades.
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post #8 of 14
Quote:
Originally Posted by Akheton View Post

Doesn't a PS3 have 1 of it's 8 cores set aside for redundancy?

Laser cut for yields, I think.
    
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post #9 of 14
I wouldn't say 1-2 decates. 2 years ago, intel showed off a 256-logical core CPU! Guessing that would be a 128-core CPU with HT enabled.

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post #10 of 14
I thought redundancy was already invented. [...and by Apple, which uses it to push the one new feature in each successive generation of the iPhone]
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