On Wed, 21 Jun 2006, Martin Maechler wrote:
> Does anyone see a nice portable way to detect --- from inside R ---
> if R is using its own BLAS or not?
> { And ideally, if not, can R find out which ``kind'' of
> (optimized) BLAS it does run? }
>
> And the same for LAPACK ?
>
> One way of getting a partial answer seems to be
>
> Rs_own_LAPACK_and_BLAS <-
> list.files(file.path(R.home(), "lib"), pattern = "^libRlapack") > 0
>
> (where I'd be grateful for confirmation from a Mac and a Windows user
> that the above does work)
Not possible: R on Windows has a plug-in BLAS, and Simon has asked for the
same on MacOS X. And the BLAS and LAPACK are DLLs stored in R_HOME/bin,
not import libraries stored on R_HOME/lib (which no longer exists).
There are even architecture-specific Rblas.dll on CRAN (and have been for
some years).
Brian
--
Brian D. Ripley, [EMAIL PROTECTED]
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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