[Beowulf] 96 cores in silent and small enclosure

Jon Tegner tegner at renget.se
Wed Apr 14 08:41:26 PDT 2010


I have no clue of how to do this "distillation process" - it is not my
field. How would you do this? Do you have the numbers for any cpu?



And Arrhenius - again, semiconductors is not my field - would a 10
degree rise halve the life span irrespective of activation energy and
temperature range?


On Apr 14, 2010 15:49 "Lux, Jim (337C)" <james.p.lux at jpl.nasa.gov>
wrote:

> Start with Arrhenius.. 10degree rise halves the life.
> 
> Actually, there’s a huge amount of information out there on
> semiconductor failure and life effects. It’s just not distilled down
> to
> a “for part #, here’s what happens”, because it depends on a lot of
> things.
> 
> 
> On 4/14/10 1:12 AM, "Jon Tegner" <> wrote:
> > > the max temp spec is not some arbitrary knob that the chip vendors
> > > choose out of spiteful anti-green-ness. I wouldn't be surprised to
> > > see some
> > >
> > > ****************************************************************
> > >
> > > Issue is not the temp spec of current cpus, problem is that it is
> > > hard to get relevant information. I haven't found any that states
> > > that the failure rate in year 5 should be significantly higher if
> > > you operate the cpu at 65 C instead of 55 C. I'm just saying this
> > > kind of information would be valuable (and I would be glad to find
> > > it).
> >
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