From: jonathan <johnscpg@googlemail.com>
Subject: Re: Need some light on using Ada or not
Date: Sun, 20 Feb 2011 12:10:13 -0800 (PST)
Date: 2011-02-20T12:10:13-08:00 [thread overview]
Message-ID: <73f1d7b1-98eb-436a-8f74-726ddf9c9407@e8g2000vbz.googlegroups.com> (raw)
In-Reply-To: mcs2m6hv8hbkboqoeli3pbg29oj09slesu@4ax.com
On Feb 20, 7:57 pm, Brian Drummond <brian_drumm...@btconnect.com>
wrote:
> On Sun, 20 Feb 2011 20:49:10 +0100, Pascal Obry <pas...@obry.net> wrote:
> >Jonathan,
>
> >> If you want a multi-core Ada version, this might be a good
> >> place to break out the Annex E (distributed systems) approach.
>
> >I really don't see how a distributed application could run faster than a
> >multi-threaded one on a single machine! So PolyORB is certainly not the
> >solution to this problem.
>
> You are probably right ... unless PolyOrb performs better than the 100% overhead
> (on this test case) imposed by the pthread library (which I think is how Gnat
> implements its tasking)
>
> - Brian.
My preferred plan B would link to MPI, which distributes mpi-tasks
over the available cores. I don't know if that will work either!
J.
next prev parent reply other threads:[~2011-02-20 20:10 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-18 22:52 Need some light on using Ada or not Luis P. Mendes
2011-02-18 23:58 ` Georg Bauhaus
2011-02-19 14:25 ` Simon Wright
2011-02-19 0:20 ` Edward Fish
2011-02-20 0:13 ` Luis P. Mendes
2011-02-20 1:36 ` Marc A. Criley
2011-02-20 9:59 ` mockturtle
2011-02-20 10:37 ` Brian Drummond
2011-02-20 11:08 ` Ludovic Brenta
2011-03-01 8:10 ` Adrian Hoe
2011-03-01 8:29 ` Thomas Løcke
2011-03-04 13:34 ` Adrian Hoe
2011-02-19 8:43 ` Vadim Godunko
2011-02-19 13:07 ` Brian Drummond
2011-02-19 14:17 ` Simon Wright
2011-02-19 18:02 ` Brian Drummond
2011-02-19 18:07 ` Bill Findlay
2011-02-20 10:42 ` Brian Drummond
2011-02-19 14:36 ` Georg Bauhaus
2011-02-19 18:25 ` Brian Drummond
2011-02-20 14:34 ` Brian Drummond
2011-02-20 15:45 ` jonathan
2011-02-20 16:18 ` Brian Drummond
2011-02-20 19:49 ` Pascal Obry
2011-02-20 19:57 ` Brian Drummond
2011-02-20 20:10 ` jonathan [this message]
2011-02-20 21:15 ` Pascal Obry
2011-02-20 21:26 ` Vinzent Hoefler
2011-02-20 21:33 ` Vinzent Hoefler
2011-02-20 21:36 ` Pascal Obry
2011-02-20 21:50 ` Vinzent Hoefler
2011-02-20 22:18 ` jonathan
2011-02-20 22:47 ` Simon Wright
2011-02-21 12:52 ` Brian Drummond
2011-02-21 13:44 ` Simon Wright
2011-02-24 0:19 ` Brian Drummond
2011-02-24 7:41 ` Jacob Sparre Andersen
2011-02-22 2:15 ` Shark8
2011-02-20 16:42 ` jonathan
2011-02-20 20:02 ` Brian Drummond
2011-02-20 0:20 ` Luis P. Mendes
2011-02-20 10:50 ` Brian Drummond
2011-02-20 19:54 ` Brian Drummond
2011-02-23 22:19 ` Luis P. Mendes
2011-02-24 17:06 ` Brian Drummond
2011-02-27 17:51 ` Luis P. Mendes
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