[R-sig-Fedora] Centos / Fedora rpm - issue with openblas

[enzo at smartinsightsfromdata.com]

Martyn

Many thanks for your clear reply.  I’m sure that this has been done for good reasons, but I am disappointed that  I need to organise myself to compile R from sources *just* to link another library: it looks like a functional regression to me, compared to 3.02 (and previous releases).

May I suggest at some point to amend R standard docs to clarify that the option described is no longer viable with Linux / Fedora?

Many thanks again.

Enzo
 
On 16 Jun 2014, at 11:49, Martyn Plummer <plummerm at iarc.fr> wrote:

> This is a change in the way that the RPM is built. The RPM for R 3.1.0
> does not build its own blas and lapack libraries, but links directly to
> external blas and lapack provided by Fedora.  This means that you can no
> longer swap out libRblas.so by replacing it with a symbolic link to
> openblas.
> 
> If you really want openblas then you should install R from source using
> the configure option --with-blas="openblas" (Recall that you need to
> install the openblas-devel RPM).
> 
> Martyn
> 
> On Mon, 2014-06-16 at 08:53 +0000, enzo at smartinsightsfromdata.com wrote:
>> 
>> I�ve installed R 3.1 with the latest Fedora rpm
>> (R-3.1.0-5.el6.x86_64.rpm) and I run into some issues with openblas.
>> 
>> I�ve documented this with an open question on stack overflow here:
>> http://stackoverflow.com/questions/24158372/openblas-r-3-1-and-fedora-centos-dist
>> 
>> Basically before 3.1 I had 3.02 and I was able to install and use
>> openblas following the instruction from official CRAN documentation,
>> symlinking the openblas library instead of the �official� one, with a
>> significant improvement in performance.
>> 
>> Now I do not know how to dynamic-link the openblas libraries anymore,
>> as it seems that either the address of the standard libs is changed,
>> or the working of the libraries has changed.
>> 
>> Could somebody be so kind to shed some light?
>> 
>> Many thanks in advance!
>> 
>> Enzo Martoglio
>>        [[alternative HTML version deleted]]
>> 
>> 
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>