[Rd] Linking With External Lapack: Segfault
Prof Brian Ripley
ripley at stats.ox.ac.uk
Fri Aug 22 17:09:12 CEST 2008
On Fri, 22 Aug 2008, Imanpreet wrote:
> Hello All,
> I have been trying to figure out on linking R with an external
> lapack. Even though the R-admin recommends against doing so, our
> requirements force us to link it to an external lapack. I am running
> configure with the following parameter.
> *./configure --with-lapack="-L/usr/lib -llapack -lcblas" *
> The above seems to be having NO effect. However, later I tried replacing
> libRlapack, libblas and lapack.so from $(R_HOME)/lib and $(R_HOME)/modules/
> with external lapack. Firstly, is this good?
No, and the cause of your failure below.
Why do you think '-lcblas' is correct? Please do follow the manual -- if
you still have trouble when you do it is reasonable to ask for help, but
> Secondly, after doing the above. When I do.
> When I do
> The following is the error that I am getting:
> *Error: segfault from C stack overflow*
> On debugging the error was in La_Init() at Line 61
> I am getting a SIGSEGV over here.
> Could anybody provide an pointers or and tips on how to link R with an
> external lapack? And also possibly the cause of the above issues?
Follow the manual -- its instructions do work (they are used on Mac OS X,
and will also work on Linux and Solaris).
> Imanpreet Singh Arora
> [[alternative HTML version deleted]]
> R-devel at r-project.org mailing list
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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