From mario at emmenlauer.de  Wed Aug 27 10:03:40 2014
From: mario at emmenlauer.de (Mario Emmenlauer)
Date: Wed, 27 Aug 2014 10:03:40 +0200
Subject: [Rd] working with huge memory: single precision?
Message-ID: <53FD90DC.80802@emmenlauer.de>


Hello,

I'm very new to R and don't know much about it yet. I would like
to develop R-programs that work with data of sizes of 10^10 - 10^11
data points. We have very-high-memory machines with ~256 GB, but it
would significantly help if I could store the data points in single
precision in RAM instead of double precision. Is that possible?

In the documentation I found a sentence saying its not supported,
at least not out of the box. But I am quite desperate and would also
consider working with an alpha version or with extension packages?

Ideally I would like type promotion to work, i.e. that when using
the data in math operations they should be promoted to double.

Any help is greatly appreciated! All the best,

    Mario



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Mario Emmenlauer BioDataAnalysis             Mobil: +49-(0)151-68108489
Balanstrasse 43                    mailto: mario.emmenlauer * unibas.ch
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[Rd] working with huge memory: single precision?
Mario Emmenlauer