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From: "Randy Barlow" <randy@electronsweatshop.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] which -march flag to pick for Intel Core 2 Duo  in make.conf?
Date: Fri, 25 May 2007 03:22:49 -0400 (EDT)	[thread overview]
Message-ID: <1359.24.74.96.11.1180077769.squirrel@electronsweatshop.com> (raw)
In-Reply-To: <d9a0a6da0705240938y4bc79b28u28f85c037095e9a7@mail.gmail.com>


On Thu, May 24, 2007 12:38 pm, Denis wrote:
> My aim is to build a fast, stable system for my
> computations, which ultimately brought me to another major decision:
> 32-bit or 64-bit...  I run simulations which I write in C and
> numerical computations which I run in Mathematica (which has just
> released the 64-bit version).  Would a 64-bit system significantly
> benefit these applications?

If you are using a lot of memory in your computations, then the 64-bit
environment will be much friendlier to you :)  Also, if I understand
correctly, you will get higher precision on floating point calculations
(someone correct me if I am wrong here!)  I also believe that the 64 bit
processors are able to perform more instructions per second on average
when executing 64 bit code vs. 32 bit code if I am not mistaken...

-- 
Randy Barlow
http://www.electronsweatshop.com
"Oh me of little faith..."
-- 
gentoo-user@gentoo.org mailing list



  reply	other threads:[~2007-05-25  7:28 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-24 13:55 [gentoo-user] which -march flag to pick for Intel Core 2 Duo in make.conf? Denis
2007-05-24 14:15 ` Ryan Sims
2007-05-24 14:17 ` Mark Shields
2007-05-24 15:13   ` Denis
2007-05-24 15:43     ` Neil Bothwick
2007-05-24 15:55       ` Graham Murray
2007-05-24 16:38       ` Denis
2007-05-25  7:22         ` Randy Barlow [this message]
2007-05-24 15:30 ` [gentoo-user] " Alexander Skwar
  -- strict thread matches above, loose matches on Subject: below --
2007-05-25  9:10 [gentoo-user] " burlingk
2007-05-25 17:03 ` Andreas Claesson
2007-05-25 18:26   ` Denis
2007-05-28  3:05     ` Randy Barlow
2007-05-31  1:11     ` Dan Farrell

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