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On Friday 26 May 2006 11:45 am, Christina Bourne wrote:
>
> Prior to purchasing a computer with an AMD Turion 64
> ML-40 processor, I was wondering if there were any
> issues running Linux (SuSe or Ubantu) and packages
> common to crystallography (ccp4, cns, o etc.)?

I don't know of any issues with the processor or the 
packages per se, but we continue to suffer problems with
64-bit code produced by gfortran.  To be specific, the
LAPACK library is in our experience unreliable when 
compiled with gfortran for AMD 64-bit.

It may be possible to work around the compiler bugs
with a proper set of compile options, but if so we have
not yet found them :-(   Several bugfixes relating to
this are apparently slated for the next release of
gfortran, but I don't know when they will percolate
into the various linux distributions.  I also don't
know whether they fix the specific problems we've
been having.


-- 
Ethan A Merritt
Biomolecular Structure Center
University of Washington, Seattle WA

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