[AMBER] Recommendations for Amber on AMD Bulldozer

From: Jan-Philip Gehrcke <jgehrcke.googlemail.com>
Date: Tue, 21 Aug 2012 14:02:52 +0200

Hello Amber community,

In Dresden we would like to build Amber 12 for running on an AMD
Bulldozer cluster (Opteron 6274 "Interlagos").

In theory, it looks like the following setup would be good:
- Open64 compiler with -march=bdver1 and -O3 (cf.

On the other hand, we could just go for the GNU or PGI way.

I see that the configure script of Amber 12 now supports open64, but
that this is still in an 'experimental' state. In the archives of this
list I read some pretty old discussions about using Amber with ACML and
my impression was that it's not worth the effort.

Do you have any recommendations or experiences regarding compiler,
compiler flags, and math library for the Bulldozer platform? We have to
trade off build simplicity against performance of the outcome. Regarding
Amber 12, does it make sense to build against ACML? Would it be stupid
to not use Open64 on this platform?

Thanks for your insights,


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Received on Tue Aug 21 2012 - 05:30:04 PDT
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