[R] R1.5.1 compilation ans install: 2 previous questions

Peter Dalgaard BSA p.dalgaard at biostat.ku.dk
Mon Jul 15 12:04:32 CEST 2002

Agustin Lobo <alobo at paleo.ija.csic.es> writes:

> I'm geting ready to compile and install R-1.5.1
> (R-patched_2002-07-15.tar.gz) on Linux
> (Suse 8.0, 2 AMD proc., ATLAS libs installed). 
> My current version is R.1.4.0 
> I'd like to get advice on two doubts:
> 1. Is it better that I remove my current /usr/lib/R directory?
> 2. Regarding ATLAS, the R-1.5.1 R-admin manual states :
> "This is currently not supported. The problem is that SIGINT signals
> will not be handled properly when sent during a multi-threaded ATLAS
> computation, and this may result in a segmentation fault".
> Does this mean that I should avoid the --with-blas=/usr/lib/libatlas.a
> option for ./configure ?

It's only an issue if ATLAS is multi-threaded, so it depends on your
ATLAS. (And you might decide to live with the bug, if you have a
multi-CPU system since the speedup can be quite substantial.)

   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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