> If your favourite
> applications have parallelised versions then this could make a
> big difference.
Indeed. Although it sounds like this system is for "real"
crystallographic number crunching, these same compute resources could
also come in handy in preparing fancy rendered animations of your
refined molecules.
For example, the PyMOL open-source code supports 64-bits on Linux and is
parallized for rendering on multicore systems: "ray" with 8 cores is
about 6 times faster than "ray" on a single core. Also, PyMOL scripts
and sessions can be run in command-line only mode ( "-c" option) if, as
is often the case, you only have shell access on the number cruncher.
Cheers,
Warren
> -----Original Message-----
> From: CCP4 bulletin board [mailto:[log in to unmask]] On Behalf Of
Adam
> Ralph
> Sent: Monday, September 15, 2008 5:01 AM
> To: [log in to unmask]
> Subject: Re: [ccp4bb] xeon, 64 bit etc
>
> Dear Jan,
>
> I am using the 64-bit version of Ubuntu plus CCP4 without
> any porblems. The only application that needed the 32-bit
> libraries was the flash plugin for firefox. It seems that not
> all useful applications have been converted to 64-bit. Using
> the two libraries together has not been a problem.
> Having multiple processors will not necessarily make the
> run-time for a single application faster. If your favourite
> applications have parallelised versions then this could make a
> big difference.
>
> Adam
>
>
>
>
> On Fri, 12 Sep 2008, Jan Abendroth wrote:
>
> > Hi all,
> > we are looking into a multicore Xeon number cruncher with loads of
> memory.
> > Are there any known issues we should consider regarding large memory
> (>4GB),
> > 32bit vs. 64bit, and ccp4 or other crystallographic programs running
on
> > these systems? Only thinking linux at this point...
> >
> > Thanks a lot for any input!
> > Jan
> >
> > --
> > Jan Abendroth
> > deCODE biostructures
> > Seattle / Bainbridge Island, WA, USA
> > work: JAbendroth_at_decode.com
> > home: Jan.Abendroth_at_gmail.com
> >
>
>
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