On 02/14/2012 04:56 PM, Scott Raynaud wrote:
My IT people have set up R on a a Kubuntu box with an RWkard
front end. I have OpenBLAS set up as a shared BLAS but I'm not
sure how to get R to see it. A.3.1 of the installation docs talks
about it but I'm not clear if I need a option on my startup line or
if I need to find a config file. The BLAS is is in:
/usr/lib/openblas-base
on my machine. I'm not sure how to confirm that R is seeing
the BLAS.
Recommendations?
Scott,
There used to be a good post about this on a blog, but the blog has gone
under. Luckily, I was able to salvage the post from Google cache. Here
is the relevant part:
Copy the resulting .so shared object library file
(libgoto2_penrynp-r1.12.so on my machine) to /usr/lib
The original BLAS library located there is called libblas.so.3gf.0.
Back this file up: cp libblas.so.3gf.0 libblas.so.3gf.0.keep
Make a symbolic link to the new BLAS library:
ln -s libgoto2_penrynp-r1.12.so libblas.so.3gf.0
Basically, you need to make sure that the file "libblas.so.3gf.0" links
to the location of your lib. I would find a benchmark file
(http://r.research.att.com/benchmarks/) to test R before and after
creating the link, just to make sure it is working.
Hope this helps,
Michael
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Dr. Michael A. Rutter
School of Science
Penn State Erie, The Behrend College
Station Road
Erie, PA 16563
http://math.bd.psu.edu/faculty/rutter
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