From owner-chemistry@ccl.net Thu Nov 22 15:06:00 2012
From: "Igor Filippov igor.v.filippov::gmail.com" <owner-chemistry-,-server.ccl.net>
To: CCL
Subject: CCL: Need advice on buying a large memory pc
Message-Id: <-47900-121122115625-12712-ixPLuTfP7E5FHLWRJsTFxQ-,-server.ccl.net>
X-Original-From: Igor Filippov <igor.v.filippov[A]gmail.com>
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset="UTF-8"
Date: Thu, 22 Nov 2012 11:56:32 -0500
Mime-Version: 1.0


Sent to CCL by: Igor Filippov [igor.v.filippov(a)gmail.com]
You can purchase this kind of system from PenguinComputing and it will
come configured with Linux.

I can't say for 256Gb but we have purchased 192Gb RAM systems from them
before. Modern Linux works fine there, no special configuration
required.

http://www.penguincomputing.com/Products/RackmountedServers/Relion/Relion1800

I personally would avoid anything from Dell. Cheap stuff is cheap there
but anything more sophisticated is rather overpriced.

If you need something cheaper you can get a 64Gb Sandy Bridge E system
> from cyberpower. You'd have to install Linux yourself though in that
case. I got a very nice 64Gb RAM workstation for under $2,500 there.

http://www.cyberpowerpc.com/system/CyberPower_X79_Configurator


Igor


On Thu, 2012-11-22 at 11:37 +0100, uekstrom{=}gmail.com
uekstrom{=}gmail.com wrote:
> Sent to CCL by: "uekstrom.:.gmail.com" [uekstrom.:.gmail.com]
> Dear all,
> I want to buy a pc with a lot of memory. I see that HP, Dell etc offer
> machines that
> can take up to 256GB memory. I indend to run some sort of Linux on the machine,
> which will mainly be used for correlated calculations. Three questions:
> 
> Is it worth going for ECC memory? How common are memory errors anyway?
> 
> Is there any special motherboard I should avoid (for Intel Xeon
> CPUs)?
> 
> Does modern Linux run efficiently out of the box with 256 GB memory? I
> remember there were some patches for extra large pages that were
> needed in the past, but now I imagine this amount of memory is not so
> uncommon anymore.
> 
> Regards,
> Ulf Ekstrom, University of Oslo> 
>