Hello Tim,
I believe the notion comes about as one can thread 64 instead of 32 addresses concurrently, thereby boosting performance. If it has no performance boost, why would they bother?
Cheers, tom
-----Original Message-----
From: Tim Gruene [mailto:[log in to unmask]]
Sent: Wednesday, 4 April 2012 6:43 PM
To: Peat, Tom (CMSE, Parkville)
Cc: [log in to unmask]
Subject: Re: [ccp4bb] Who is using 64-bit Linux?
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Dear Tom,
64-bit is about memory addressing - why would you expect a performance
boost? I have wondered where this notion originated from.
Cheers,
Tim
On 04/03/12 22:07, Tom Peat wrote:
> We use the 64 bit Centos (Red Hat) distro and CCP4, Coot, etc seem to work fine on this.
> I can't say I notice a big performance boost from the 64 bit side of things.
> Maybe I'm just impatient.
> cheers, tom
>
>
> Tom Peat
> Biophysics Group
> CSIRO, CMSE
> 343 Royal Parade
> Parkville, VIC, 3052
> +613 9662 7304
> +614 57 539 419
> [log in to unmask]
> ________________________________________
> From: CCP4 bulletin board [[log in to unmask]] On Behalf Of Roger Rowlett [[log in to unmask]]
> Sent: Wednesday, April 04, 2012 5:57 AM
> To: [log in to unmask]
> Subject: [ccp4bb] Who is using 64-bit Linux?
>
> The time has come for me to upgrade my Linux OS to something more recent
> for me and my student workstations. A 32-bit distro is certainly
> conservative and compatible with CCP4 and Coot, but it seems like that
> solution hobbles my hardware and puts some limitations on available
> memory, even with PAE enabled. So who is using a 64-bit distro these
> days, and are there lingering issues of compatibility and dependency
> hell with commonly used XRD software, like CCP4, Coot, iMOSFLM etc.?
>
> Ubuntu 12.04 LTS (beta) actually works OK with one simple workaround for
> the global menu for CCP4 and Coot, and wine compatibility is fine for
> running CrysalisPro in the same environment, so it's really comes down
> to whether or not the extra performance of a 64-bit OS is worth the pain
> of compatibility issues for XRD software. Any thoughts?
>
> Cheers,
>
> _______________________________________
> Roger S. Rowlett
> Gordon & Dorothy Kline Professor
> Department of Chemistry
> Colgate University
> 13 Oak Drive
> Hamilton, NY 13346
>
> tel: (315)-228-7245
> ofc: (315)-228-7395
> fax: (315)-228-7935
> email: [log in to unmask]
>
- --
- --
Dr Tim Gruene
Institut fuer anorganische Chemie
Tammannstr. 4
D-37077 Goettingen
GPG Key ID = A46BEE1A
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