From: Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject: Re: do ada tasks run accross 16 cpu boxs? or stuck on 1 cpu?
Date: Sun, 12 May 2013 12:35:27 -0400
Date: 2013-05-12T12:35:27-04:00 [thread overview]
Message-ID: <d3hvo89cml9bkno0pf98iipl3pg5ih6kci@invalid.netcom.com> (raw)
In-Reply-To: 518f4114$0$14836$703f8584@news.kpn.nl
On Sun, 12 May 2013 09:17:25 +0200, "ldries46" <bertus.dries@planet.nl>
declaimed the following in comp.lang.ada:
> I just have created my own program in which I originally did all ca;vulation
> on one CPU. Now I created a part of the calculation in tasks running
> paralel. On my four core systemI achieved a speed that exceded the original
> speed by a factor of more than 3. This meant three cores were running the
> intensive calculation part in the tasks and one the administration around
> the proces. (all with GNAT ADA on windows 7). The same exe file ran even
> faster on a 4 core with hyperthreading machine of which the clock speed was
> lower than that of the first test. I did nothing extraordinary to achieve
> this.
>
I suspect you had a number cruncher application in which the intense
code and most data all fit within each core's high-speed cache.
--
Wulfraed Dennis Lee Bieber AF6VN
wlfraed@ix.netcom.com HTTP://wlfraed.home.netcom.com/
next prev parent reply other threads:[~2013-05-12 16:35 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-07 20:16 do ada tasks run accross 16 cpu boxs? or stuck on 1 cpu? johannes falcone
2013-05-07 20:29 ` Jeffrey Carter
2013-05-07 20:45 ` Ludovic Brenta
2013-05-07 23:10 ` johannes falcone
2013-05-08 13:13 ` john
2013-05-08 13:15 ` john
2013-05-12 7:17 ` ldries46
2013-05-12 16:35 ` Dennis Lee Bieber [this message]
2013-05-21 19:41 ` Michael Erdmann
2013-05-22 12:14 ` Marc C
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