From: "J C" <jhc0033@gmail.com>
To: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] thousands of CPU cores
Date: Sat, 12 Jul 2008 16:05:31 -0700 [thread overview]
Message-ID: <c6c368760807121605y3c86e48cr63beeaf79fa9b5fc@mail.gmail.com> (raw)
In-Reply-To: <487768E2.6000108@inria.fr>
On Fri, Jul 11, 2008 at 7:06 AM, Xavier Leroy <Xavier.Leroy@inria.fr> wrote:
> Look at GPUs, which are the closest we have
> today to a manycore system: 128 cores are available today, more is
> in preparation, but the programming model is definitely not SMP.
I was reading an article about CUDA written by an in-the-trenches
GPGPU programmer. I can't find it now, but one of the points of the
article, as I understood it, was that stream-oriented approaches (like
BrookGPU) look great in theory, but don't work very well in practice -
they can often be orders of magnitude slower than "dirty" approaches
that use some mutable shared memory block in the video card. In other
words, pure-functional programming for multi-core concurrency is just
a speculative promise (for academic funding purposes perhaps).
(If this sounds familiar and anyone has the link, please post)
prev parent reply other threads:[~2008-07-12 23:05 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-10 5:57 J C
2008-07-10 6:15 ` [Caml-list] " Erik de Castro Lopo
2008-07-10 12:47 ` Oliver Bandel
2008-07-10 13:48 ` Hezekiah M. Carty
2008-07-10 11:35 ` Jon Harrop
2008-07-14 11:32 ` J C
2008-07-14 12:08 ` Jon Harrop
2008-07-14 17:04 ` Mike Lin
2008-07-14 17:28 ` Jon Harrop
2008-07-14 17:16 ` Richard Jones
2008-07-10 13:21 ` Jon Harrop
2008-07-10 13:44 ` Peng Zang
2008-07-10 14:00 ` Jon Harrop
2008-07-10 22:25 ` Richard Jones
2008-07-10 23:04 ` Jon Harrop
2008-07-10 23:41 ` Oliver Bandel
2008-07-11 0:17 ` Oliver Bandel
2008-07-11 9:30 ` Richard Jones
2008-09-21 19:05 ` Michaël Grünewald
2008-09-21 21:41 ` Jon Harrop
2008-09-22 7:51 ` Alan Schmitt
2008-09-22 19:03 ` Jon Harrop
2008-09-22 19:49 ` David Teller
2008-09-23 6:42 ` kirillkh
2008-09-24 13:30 ` [Caml-list] Link tracking Chris Clearwater
2008-09-24 15:43 ` Jon Harrop
2008-07-11 14:53 ` [Caml-list] thousands of CPU cores Peng Zang
2008-07-15 14:39 ` Kuba Ober
2008-07-19 12:41 ` Oliver Bandel
2008-07-10 19:15 ` Gerd Stolpmann
2008-07-10 20:07 ` Sylvain Le Gall
2008-07-10 20:24 ` [Caml-list] " Gerd Stolpmann
2008-07-10 21:02 ` Sylvain Le Gall
2008-07-10 21:19 ` [Caml-list] " Gerd Stolpmann
2008-07-10 21:35 ` Jon Harrop
2008-07-10 22:39 ` Gerd Stolpmann
2008-07-15 15:57 ` Kuba Ober
2008-07-15 18:03 ` Gerd Stolpmann
2008-07-15 19:23 ` Adrien
2008-07-15 19:45 ` Adrien
2008-07-16 8:59 ` Michaël Grünewald
2008-07-16 16:43 ` Gerd Stolpmann
2008-07-16 11:46 ` Richard Jones
2008-07-16 18:35 ` Erik de Castro Lopo
2008-07-17 12:48 ` Kuba Ober
2008-07-15 15:21 ` Kuba Ober
2008-07-10 20:48 ` Basile STARYNKEVITCH
2008-07-10 21:12 ` Jon Harrop
2008-07-10 23:33 ` [Caml-list] " Oliver Bandel
2008-07-10 23:43 ` Oliver Bandel
2008-07-11 6:26 ` Sylvain Le Gall
2008-07-11 8:50 ` [Caml-list] " Jon Harrop
2008-07-11 9:29 ` Sylvain Le Gall
2008-07-15 16:01 ` [Caml-list] " Kuba Ober
2008-07-13 3:17 ` Code Mobility [was Re: thousands of CPU cores] Robert Fischer
2008-07-11 3:01 ` [Caml-list] thousands of CPU cores Brian Hurt
2008-07-11 13:01 ` Gerd Stolpmann
2008-07-11 13:43 ` Jon Harrop
2008-07-11 14:03 ` Basile STARYNKEVITCH
2008-07-11 15:08 ` Jon Harrop
2008-07-11 17:28 ` Jon Harrop
2008-07-11 17:54 ` Richard Jones
2008-07-11 18:30 ` Raoul Duke
2008-07-12 17:35 ` Brian Hurt
2008-07-11 15:01 ` Peng Zang
2008-07-12 0:23 ` Oliver Bandel
2008-07-12 22:54 ` J C
2008-07-19 12:06 ` Oliver Bandel
2008-07-11 14:06 ` Xavier Leroy
2008-07-11 15:20 ` Oliver Bandel
2008-07-11 15:23 ` Bill
2008-07-11 18:14 ` Mattias Engdegård
2008-07-12 23:05 ` J C [this message]
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