Re: Multi-core and memory

In article <faydnVZWarIr8NLVnZ2dnUVZ_srinZ2d@[EMAIL PROTECTED]
>,
"Chris Thomasson" <cristom@[EMAIL PROTECTED]
> writes:
|> "Gavin Scott" <gavin@[EMAIL PROTECTED]
> wrote in message 
|> news:oeOdnQtBnILKe9TVnZ2dnUVZ_qLinZ2d@[EMAIL PROTECTED]
|> > In comp.arch Chris Thomasson <cristom@[EMAIL PROTECTED]
> wrote:
|> >> I am talking about integrating a multi-core processor with a 2GB of
DDR3
|> >> memory in a single pluggable card.
|> >
|> > I think the biggest problem you'd have with that would be thermal if
|> > you want all that in a DIMM-like form factor.  If you need 30 in^3 of
|> > thermal management infrastructure for each one then you might as well
|> > have discrete processors and separate memory maybe.
|> >
|> >> I was just wondering of that could be possible, or if its a
pipe-dream...
|> >
|> > A heat-pipe-dream.
|> 
|> :^D
|> 
|> There has to be a way to address the heat issue. Perhaps with very
clever 
|> liquid cooling techniques and fans. Humm... 

Perhaps by stepping back and thinking.

It is obviously impossible to keep ramping up the heat density, even
ignoring matters like machine room capacities and global warming.
So, as always in engineering when faced with an insoluble problem,
the solution is to change the problem.

We already know how to solve this for another 10-20 years, but the
political will is lacking.  All it requires is gritting our teeth
and saying "no, you CAN'T have continually increasing performance
of your serial spaghetti codes - we are up against the physical
limits - now get on with delivering a software revolution."


Regards,
Nick Maclaren.