[Beowulf] Power calculations , double precision, ECC and power of APU's

Christopher Samuel samuel at unimelb.edu.au
Mon Mar 18 20:07:21 PDT 2013


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On 14/03/13 22:42, Vincent Diepeveen wrote:

> Since when in HPC do we want SP gflops?

GROMACS.

http://www.gromacs.org/Documentation/Terminology/Precision

# When installing GROMACS, the default behavior is to utilize
# single precision.  This level of precision is sufficient for
# most calculations.

Yes, it goes on to say it uses DP for some variables, but that's just
where they have to.  You can build it for DP, but it's not the default.

- -- 
 Christopher Samuel        Senior Systems Administrator
 VLSCI - Victorian Life Sciences Computation Initiative
 Email: samuel at unimelb.edu.au Phone: +61 (0)3 903 55545
 http://www.vlsci.org.au/      http://twitter.com/vlsci

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