Accessto OpenBLAS

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?