On Fri, 26 Jun 2009, Evan Cooch wrote:
> Well, CentOS 5.3, which amounts to the same thing.
>
> I recently decided to upgrade my main research machine from Fedora Core 8
->
> CentOS 5.3. Basically, I was looking to move to a distro with longer
> 'term-of-life' than the release schedule for Fedora currently
allows. The
> machine is a multi-Opteron box, so both 32- and 64-bit apps natively
> supported. Since I do a lot of 'linear algebra'-heavy things with
R, I had
> compiled R 2.9.0 against the ACML blas. ACML contains lapack, so I killed
two
> birds with one stone. Generally, I would do a configure with
>
> ./configure --with-tcltk --with-blas="-L/opt/acml4.3.0/gfortran64/lib
-lacml"
>
> Worked perfectly. Led to 10-20x speedup in certain calculations.
>
>
> Things haven't been so good since moving to CentOS. The install of the
OS
> went fine, but I can't for the life of me figure out how to compile R
against
> blas - ACML-variety or otherwise. Moreover, putting in --with-lapack
> explicitly causes all sorts of errors - the main one being 'hinted
at' in the
> R admin docs. The error is
>
> Error in La.svd(x, nu, nv) :
> BLAS/LAPACK routine 'DGESDD' gave error code -12
> Calls: cancor -> svd -> La.svd -> .Call
> Execution halted
>
> So, from the admin guide, I find the following
>
> Since ACML contains a full LAPACK, if selected as the BLAS it can be used
as
> the LAPACK /via/ --with-lapack.
> If you do use --with-lapack, be aware of potential problems with bugs in
the
> LAPACK 3.0 sources (or in the posted corrections to those sources). In
> particular, bugs in |DGEEV| and |DGESDD| have resulted in error messages
such
> as
>
> DGEBRD gave error code -10
>
> Not quite the same error code, but close enough I suspect they're
related.
>
> I tried different forms of blas too (atlas, acml) - made little difference.
>
> So, several quick questions:
>
> 1. anyone managed to get x86_64 R compiled under either RHEL, Fedora, or
> CentOS? I don't mean 'installed from an RPM', but...compiled
from source.
Yes, RHEL5, x86_64, no problem.
>
> 2. anyone who answers 'yes' to (1) - did you manage to get it to
play nice
> with blas and lapack?
Yes, with GoToBLAS, using the instructions in:
http://cran.r-project.org/doc/manuals/R-admin.html#Linear-algebra
especially:
"Another option to change the BLAS in use is to symlink a dynamic BLAS
library (such as ACML or Goto's) to R_HOME/lib/libRblas.so. For example,
just
mv R_HOME/lib/libRblas.so R_HOME/lib/libRblas.so.keep
ln -s /opt/acml4.0.1/gfortran64_mp/lib/libacml_mp.so \
R_HOME/lib/libRblas.so
will change the BLAS in use to multithreaded ACML."
Note especially A.3.2. Running on a dual core box works well.
Hope this helps,
Roger
>
>
> Before I do a clean install of yet another distro, I'd really like to
figure
> out what is going on, and possibly solve the problem.
>
> Thanks in advance...
>
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--
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no