[R] Hardwarefor R cpu 64 vs 32, dual vs quad
Prof Brian Ripley
ripley at stats.ox.ac.uk
Tue Sep 9 17:17:38 CEST 2008
On Tue, 9 Sep 2008, Nic Larson wrote:
> Need to buy fast computer for running R on. Today we use 2,8 MHz intel D cpu
> and the calculations takes around 15 days. Is it possible to get the same
> calculations down to minutes/hours by only changing the hardware?
No: you would need to arrange to parallelize the computations. I'd be
surprised if you got a computer within your budget that was 3x faster on a
single CPU than your current one, and R will only use (unaided) one CPU
for most tasks (the exception being some matrix algebra).
> Should I go for an really fast dual 32 bit cpu and run R over linux or xp or
> go for an quad core / 64 bit cpu?
> Is it effective to run R on 64 bit (and problem free
All answered in the R-admin manual, so please RTFM.
> Have around 2000-3000 euro to spend
> Thanx for any tip
> [[alternative HTML version deleted]]
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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