[gentoo-user] Best choice for a dual core

[gentoo-user] Best choice for a dual core

[Thierry de Coulon]

Hello,

Having got a virgin dual core (Intel D 805) I'm about to install Gentoo on it. 
I was wondering what would be best. If I understand it right, I could compile 
an x86_64 version, but I was thinking it would be more compatible to stay 
with the 32bit for now.

Any experience?

Thierry

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Re: [gentoo-user] Best choice for a dual core

[Alexander Skwar]

Thierry de Coulon wrote:
> Hello,
> 
> Having got a virgin dual core (Intel D 805) I'm about to install Gentoo on it. 
> I was wondering what would be best. If I understand it right, I could compile 
> an x86_64 version, but I was thinking it would be more compatible to stay 
> with the 32bit for now.

How much RAM do you have or need or will need?

Alexander Skwar
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It is not doing the thing we like to do, but liking the thing we have to do,
that makes life blessed.
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Re: [gentoo-user] Best choice for a dual core

[Thierry de Coulon]

On Thursday 27 July 2006 14.41, Alexander Skwar wrote:
> Thierry de Coulon wrote:
> > Hello,
> >
> > Having got a virgin dual core (Intel D 805) I'm about to install Gentoo
> > on it. I was wondering what would be best. If I understand it right, I
> > could compile an x86_64 version, but I was thinking it would be more
> > compatible to stay with the 32bit for now.
>
> How much RAM do you have or need or will need?
>
> Alexander Skwar
> --
> It is not doing the thing we like to do, but liking the thing we have to
> do, that makes life blessed.
> 		-- Goethe

I've got 2 GB and it will (have to) stay so

Thierry
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Re: [gentoo-user] Best choice for a dual core

[Alexander Skwar]

Thierry de Coulon wrote:

> I've got 2 GB and it will (have to) stay so

Okay, so you won't need one of the main features of 64bit machines -
larger addressable space of RAM.

Will you do number crunching with floating point numbers or with
large integers?

If not, then you won't use those advantages either. Somebody correct
me, but if you want to WORK with this machine (ie. not fiddle), I'd
suggest to stay 32bit. Or what advantages would 64bit provide?

Alexander Skwar
-- 
After a time, you may find that "having" is not so pleasing a thing,
after all, as "wanting."  It is not logical, but it is often true.
		-- Spock, "Amok Time", stardate 3372.7
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Re: [gentoo-user] Best choice for a dual core

[Thierry de Coulon]

On Thursday 27 July 2006 15.10, Alexander Skwar wrote:
> Thierry de Coulon wrote:
> > I've got 2 GB and it will (have to) stay so
>
> Okay, so you won't need one of the main features of 64bit machines -
> larger addressable space of RAM.
>
> Will you do number crunching with floating point numbers or with
> large integers?
>
> If not, then you won't use those advantages either. Somebody correct
> me, but if you want to WORK with this machine (ie. not fiddle), I'd
> suggest to stay 32bit. Or what advantages would 64bit provide?
>
> Alexander Skwar

Thanks, that's more or less what I thought. No the machine is a bit of an 
"accident" (I bought the wrong CPU for another board and then decided to 
build a machine to see what "dual core" really brings) so, if I keep it, it 
will do "Work" and may be also a little "game" :))

The "dual core" seems to give more "bogomips" than my main machine (a dual 
Opteron, and that one runs a 64 bit OS) but I'd like to see how this 
translates in everyday life.

Thierry
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Re: [gentoo-user] Best choice for a dual core

[Matthias Bethke]

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Hi Alexander,
on Thursday, 2006-07-27 at 15:10:00, you wrote:
> If not, then you won't use those advantages either. Somebody correct
> me, but if you want to WORK with this machine (ie. not fiddle), I'd
> suggest to stay 32bit. Or what advantages would 64bit provide?

Depends a lot on the code[tm]. Some things benefit a lot from a decent
number of registers. OTOH, fiddling with pointers in memory slows things
down as compared to 32bit.

cheers!
  Matthias
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Re: [gentoo-user] Best choice for a dual core

[Alan]

On Thu, Jul 27, 2006 at 02:29:07PM +0200, Thierry de Coulon wrote:
> Hello,
> 
> Having got a virgin dual core (Intel D 805) I'm about to install Gentoo on it. 
> I was wondering what would be best. If I understand it right, I could compile 
> an x86_64 version, but I was thinking it would be more compatible to stay 
> with the 32bit for now.

Gentoo amd64 seems very close to x86 as far as the versions of packages,
which is nice.  I have a dual amd64 machine with 6G that's working just
great using the amd64 as the install.

Alan

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