[Beowulf] Re: Question regarding Mac G5 performance

Tim Moore moor007 at bellsouth.net
Wed May 19 16:28:09 EDT 2004


I posted the other day about Opteron vs. Itanium...the CFD code we use is
being ported to the MAC and will be tested in the next few weeks.  I am
sorry it does not answer your question...but will be able to post results
later.

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From: <beowulf-request at beowulf.org>
To: <beowulf at beowulf.org>
Sent: Wednesday, May 19, 2004 3:00 PM
Subject: Beowulf Digest, Vol 3, Issue 13


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>    1. CCL:Question regarding Mac G5 performance (fwd from
>       jle at world.std.com) (Eugen Leitl)
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> Message: 1
> Date: Wed, 19 May 2004 17:01:44 +0200
> From: Eugen Leitl <eugen at leitl.org>
> Subject: [Beowulf] CCL:Question regarding Mac G5 performance (fwd from
> jle at world.std.com)
> To: Beowulf at beowulf.org
> Message-ID: <20040519150144.GD16732 at leitl.org>
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> ----- Forwarded message from Joe M Leonard <jle at world.std.com> -----
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> From: Joe M Leonard <jle at world.std.com>
> Date: Wed, 19 May 2004 08:06:49 -0400 (EDT)
> To: chemistry at ccl.net
> Subject: CCL:Question regarding Mac G5 performance
>
> Folks, has anybody run QM or MD benchmarks on a dual-processor
> 2GHz G5 that they care to share?  I'm particularly interested
> in how they stack up to the newest/newer Opteron and Pentium4
> machines.  If you've worked with the newer Mac's, (a) is it
> possible to get good, useful 2x processor performance for
> double-precision code?  (b) what compilers are required to get
> (a)?  (c) is Altivec useful for double-precision code, or
> merely for int/float work?
>
> A quick glance at apple.com suggests these machines go for about
> $3200 USD, which isn't that different from numbers gained from a
> quick glance at dell.com.  I know IBM chips were number-crunchers
> in the good old days, and I assume that's still the case now (which
> is why I'm looking to CCL for guidance :-).
>
> Thanks in advance!
>
> Joe Leonard
> jle at theworld.com
>
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