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From: "Steve" <nospam_steved94@comcast.net>
Newsgroups: comp.lang.ada
References: <1IOdnWpX0_s6MdnfRVn-3A@comcast.com>
Subject: Re: Gnat 3.15p & Windows & Hyperthreading Q
Date: Fri, 25 Mar 2005 20:45:41 -0800
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Date: 2005-03-25T20:45:41-08:00
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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?