From: Pascal Obry <pascal@obry.net>
Subject: Re: Gnat 3.15p & Windows & Hyperthreading Q
Date: 26 Mar 2005 10:41:54 +0100
Date: 2005-03-26T10:41:57+01:00 [thread overview]
Message-ID: <uis3ezqu5.fsf@obry.net> (raw)
In-Reply-To: 1IOdnWpX0_s6MdnfRVn-3A@comcast.com
tmoran@acm.org writes:
> 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
I don't think it is true. GNAT maps tasks to OS threads, so it could be
a problem with the Windows XP used on the dual processor. Some WinXP
(could be the case for the Home Edition) does not support multiproc.
Pascal.
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next prev parent reply other threads:[~2005-03-26 9:41 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
2005-03-26 9:41 ` Pascal Obry [this message]
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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