From: "Steve" <nospam_steved94@comcast.net>
Subject: Re: Gnat 3.15p & Windows & Hyperthreading Q
Date: Fri, 25 Mar 2005 20:45:41 -0800
Date: 2005-03-25T20:45:41-08:00 [thread overview]
Message-ID: <pqKdnXXkMc8pddnfRVn-hA@comcast.com> (raw)
In-Reply-To: 1IOdnWpX0_s6MdnfRVn-3A@comcast.com
Another data point, but not one you asked for...
I have seen Gnat 3.15p take advantage of dual Xeons on a W2k machine. So I
don't think there is anything wrong in general with Gnat 3.15p on dual
processors.
Steve
(The Duck)
<tmoran@acm.org> wrote in message news:1IOdnWpX0_s6MdnfRVn-3A@comcast.com...
> I'm told that a multitask program compiled with Gnat 3.15p and run
> under Windows XP Pro on a hyperthreaded machine, runs in the same total
> time as the same program using a single task. OTOH, when compiled with
> GNAT 5.02a1 and run on a dual-processor 400 MHz Celeron running Mandrake
> Linux 8.2, it runs about 50% faster with two rather than one tasks.
> Is the problem "hyperthreading", Windows, or Gnat 3.15p?
next prev parent reply other threads:[~2005-03-26 4:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-26 0:28 Gnat 3.15p & Windows & Hyperthreading Q tmoran
2005-03-26 4:45 ` Steve [this message]
2005-03-26 9:41 ` Pascal Obry
2005-03-26 13:53 ` Marin David Condic
2005-03-26 18:36 ` tmoran
2005-03-28 13:16 ` Marin David Condic
2005-03-27 11:27 ` Simon Wright
2005-03-29 18:33 ` Wiljan Derks
2005-03-30 8:48 ` Adrien Plisson
2005-04-01 7:09 ` tmoran
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