[R] Multithreading

Peter Dalgaard BSA p.dalgaard at biostat.ku.dk
Tue Apr 16 12:10:43 CEST 2002

Lennart.Araskoug at astrazeneca.com writes:

> Hi !
> I wonder if the R application is capable of utilizing more than one CPU. I
> need to know since we run it on a SunFire 3800 with 8 750 USIII cpu:s and on
> a E420R with 4 USII cpu:s and we don't feel like we get the performance we
> could expect.
> I've seen some old discussions claiming that it isn't.

It isn't ... yet. Duncan and Luke hope to get it going for 1.6.0.

You can in principle link against a threaded ATLAS library (although
there are known signal handling problems with that) and get multi-CPU
numerics performance. And of course run multiple instances of R.

   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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