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Date:      Thu, 19 Apr 2001 12:10:51 +0930
From:      Greg Lehey <grog@lemis.com>
To:        Rik van Riel <riel@conectiva.com.br>
Cc:        Dennis <dennis@etinc.com>, Alfred Perlstein <bright@wintelcom.net>, Kris Kennaway <kris@obsecurity.org>, freebsd-hackers@FreeBSD.ORG
Subject:   The future of multiprocessors (was: SMP in 2.4 (fwd))
Message-ID:  <20010419121051.D72816@wantadilla.lemis.com>
In-Reply-To: <Pine.LNX.4.21.0104182313560.1685-100000@imladris.rielhome.conectiva>; from riel@conectiva.com.br on Wed, Apr 18, 2001 at 11:17:06PM -0300
References:  <5.0.2.1.0.20010418190439.03633920@mail.etinc.com> <Pine.LNX.4.21.0104182313560.1685-100000@imladris.rielhome.conectiva>

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On Wednesday, 18 April 2001 at 23:17:06 -0300, Rik van Riel wrote:
> On Wed, 18 Apr 2001, Dennis wrote:
>
>>> You think Intel isn't going to market dual/quad ia64 machines?
>>
>> Yes, but who'll need them?
>
> If nobody needed them, what would be the point in SELLING
> them ?

That's never been an argument for a good salesperson.  Think of
selling refrigerators to Eskimos, or the small farmer with one cow who
bought a milking machine and sold his cow to pay for it.

> I know you don't trust our technical instinct, but you might
> at least consider the business instinct of companies like
> Intel, IBM or Unisys (who all sell big SMP systems).
>
> Besides, there are LOTS of people who need tomorrow's performance
> yesterday. There will always be a big market for overpowered,
> overpriced SMP systems...

And, of course, a bigger market for high-powered, reasonably priced MP
systems.  Note that it's cheaper to buy an SMP Intel MB with two 750
MHz processors than it is to buy one with a 1.5 GHz processor.

> And as for the "but you can wait 2 years until UP is faster than
> today's SMP" doesn't quite work for eg. investment banking and stock
> funds. More computing power means better calculations, which means
> more money. And for folks like them, computing power is not measured
> in FLOPS, but in ACRES. And when you're talking 3 acres of computing
> power, you'd better have some decend density (ie. SMP in 2U
> rackmounted boxes, or something similarly suitable).

More to the point, the processors of the not-too-distant future will
have multiple processors on the single die.  Multiprocessors are here
to stay.

Greg
--
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