From: James Tomaschke <james@orcasystems.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] "Blocks" in C
Date: Thu, 3 Sep 2009 14:54:55 -0700 [thread overview]
Message-ID: <4AA03B2F.3040606@orcasystems.com> (raw)
In-Reply-To: <1251994812.16936.4807.camel@work.SFBay.Sun.COM>
Roman V Shaposhnik wrote:
> On Thu, 2009-09-03 at 11:54 -0400, erik quanstrom wrote:
>> even commodity intel and amd mp offerings are numa.
>> they're not very n, but they're still n.
>
> True. But even for those platforms good SMP frameworks are quite
> difficult to come by. And here I do mean computation, not how
> to accommodate scalable IO.
We have enjoyed our 4x quad system that we mainly use for sparse matrix
circuit solvers, though the current algorithms used don't seem to scale
well. Instead of trying to run a single simulation on as many cores as
possible, we do many different simulations at once. This trend might
move us towards more quadratic programming or differential evolution
where you are wanting to search a n-dimensional parameter space for
optimization.
next prev parent reply other threads:[~2009-09-03 21:54 UTC|newest]
Thread overview: 117+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-02 8:04 Anant Narayanan
2009-09-02 9:43 ` Francisco J Ballesteros
2009-09-02 11:00 ` Philippe Anel
2009-09-02 11:13 ` Charles Forsyth
2009-09-03 9:52 ` Greg Comeau
2009-09-02 11:40 ` Eris Discordia
2009-09-02 12:32 ` Uriel
2009-09-02 14:20 ` Devon H. O'Dell
2009-09-03 9:52 ` Greg Comeau
2009-09-03 10:48 ` Akshat Kumar
2009-09-03 11:25 ` Charles Forsyth
2009-09-03 13:59 ` Greg Comeau
2009-09-03 15:15 ` Uriel
2009-09-03 15:44 ` David Leimbach
2009-09-03 16:01 ` Roman V Shaposhnik
2009-09-04 9:15 ` Greg Comeau
2009-09-04 16:49 ` Roman Shaposhnik
2009-09-03 16:02 ` erik quanstrom
2009-09-03 18:56 ` David Leimbach
2009-09-03 18:58 ` erik quanstrom
2009-09-03 19:13 ` David Leimbach
2009-09-03 19:36 ` erik quanstrom
2009-09-03 19:50 ` David Leimbach
2009-09-03 20:30 ` Iruata Souza
2009-09-06 22:35 ` Uriel
2009-09-07 0:41 ` David Leimbach
2009-09-03 21:08 ` Roman V Shaposhnik
2009-09-03 21:35 ` erik quanstrom
2009-09-03 21:45 ` David Leimbach
2009-09-03 21:49 ` David Leimbach
2009-09-03 21:51 ` David Leimbach
2009-09-03 22:36 ` Roman V Shaposhnik
2009-09-04 9:16 ` Greg Comeau
2009-09-03 22:10 ` Daniel Lyons
2009-09-03 22:07 ` Daniel Lyons
2009-09-04 9:15 ` Greg Comeau
2009-09-04 3:21 ` Anant Narayanan
2009-09-04 3:52 ` erik quanstrom
2009-09-04 4:18 ` David Leimbach
2009-09-04 4:44 ` erik quanstrom
2009-09-04 5:31 ` David Leimbach
2009-09-04 5:35 ` David Leimbach
2009-09-04 7:11 ` Bakul Shah
2009-09-04 7:47 ` David Leimbach
2009-09-04 14:41 ` Bakul Shah
2009-09-04 15:04 ` David Leimbach
2009-09-04 15:58 ` Bakul Shah
2009-09-04 12:14 ` erik quanstrom
2009-09-04 13:52 ` David Leimbach
2009-09-04 13:59 ` matt
2009-09-04 14:20 ` erik quanstrom
2009-09-04 14:56 ` David Leimbach
2009-09-06 23:03 ` Uriel
2009-09-07 0:45 ` David Leimbach
2009-09-04 16:50 ` Roman Shaposhnik
2009-09-04 6:45 ` Bakul Shah
2009-09-04 16:44 ` Roman Shaposhnik
2009-09-04 16:58 ` Iruata Souza
2009-09-04 17:09 ` Roman Shaposhnik
2009-09-04 17:42 ` erik quanstrom
2009-09-04 18:34 ` erik quanstrom
2009-09-04 21:54 ` Roman V Shaposhnik
2009-09-07 9:06 ` Greg Comeau
2009-09-07 9:05 ` Greg Comeau
2009-09-07 9:40 ` Uriel
2009-09-08 15:31 ` David Leimbach
2009-09-08 15:44 ` Uriel
2009-09-08 16:40 ` Bakul Shah
2009-09-11 18:15 ` Iruata Souza
2009-09-11 18:46 ` David Leimbach
2009-09-11 20:36 ` Roman V Shaposhnik
2009-09-11 21:28 ` David Leimbach
2009-09-14 16:07 ` Lawrence E. Bakst
2009-09-12 11:08 ` Anant Narayanan
2009-09-13 19:03 ` David Leimbach
2009-09-17 1:54 ` Lawrence E. Bakst
2009-09-17 8:43 ` Charles Forsyth
2009-09-17 9:12 ` Daniel Lyons
2009-09-17 15:56 ` David Leimbach
2009-09-17 17:38 ` Jack Norton
2009-09-17 20:23 ` Anant Narayanan
2009-09-17 20:26 ` erik quanstrom
2009-09-17 20:31 ` Anant Narayanan
2009-09-17 20:47 ` Akshat Kumar
2009-09-17 21:02 ` erik quanstrom
2009-09-17 22:26 ` Steve Simon
2009-09-17 22:32 ` Roman V Shaposhnik
2009-09-18 2:05 ` Daniel Lyons
2009-09-18 9:30 ` Charles Forsyth
2009-09-18 11:41 ` erik quanstrom
2009-09-17 21:03 ` Uriel
2009-09-03 9:52 ` Greg Comeau
2009-09-02 14:08 ` Rodolfo (kix)
2009-09-03 9:52 ` Greg Comeau
[not found] ` <C56117D7BD9A097270529AAE@192.168.1.2>
2009-09-02 15:07 ` David Leimbach
2009-09-02 15:26 ` Roman V Shaposhnik
2009-09-02 15:45 ` David Leimbach
2009-09-03 15:32 ` Uriel
2009-09-03 15:49 ` Roman V Shaposhnik
2009-09-03 15:54 ` erik quanstrom
2009-09-03 16:20 ` Roman V Shaposhnik
2009-09-03 16:44 ` erik quanstrom
2009-09-04 1:05 ` Roman V Shaposhnik
2009-09-04 1:30 ` Russ Cox
2009-09-04 1:32 ` erik quanstrom
2009-09-03 21:54 ` James Tomaschke [this message]
2009-09-06 22:26 ` Uriel
2009-09-04 9:04 ` Greg Comeau
2009-09-02 15:20 ` Roman V Shaposhnik
2009-09-02 17:51 ` Bakul Shah
2009-09-04 1:35 drivers
2009-09-04 1:52 ` erik quanstrom
2009-09-17 9:19 Andrew Simmons
2009-09-17 14:45 ` LiteStar numnums
2009-09-17 17:24 ` Daniel Lyons
2009-09-18 15:50 drivers
2009-09-18 15:56 ` erik quanstrom
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