[R-SIG-Mac] Lapack errors on Mac but not on Linux
gabraham at csse.unimelb.edu.au
Tue Dec 9 07:41:08 CET 2008
Prof Brian Ripley wrote:
>> Is this an issue with the Apple-supplied Lapack?
> Or the Apple-supplied BLAS.
> You have not told us how R was built on your machine, but if this was
> the CRAN build you have a choice of BLAS. (See the list archives, but
> AFAIR, you can swap links between libRblas.0dylib and
> libRblas.veclib.dylib in
> /Library/Frameworks/R.framework/Resources/lib.) (On that build AFAICS
> the Lapack used is the R one.)
Both are from CRAN.
> I think your example is actually random (it uses 10-fold CV?) in which
> case that might have been the difference between machines.
I get consistent failures on Mac, and it works consistently on Linux.
> With a lot of patience, I got the example to run on my own build which
> uses the recipe in the R-admin manual (veclib for both BLAS and LAPACK).
> With the CRAN build of R using libRblas.0.dylib, it ran for a lot longer
> than with libRblas.veclib.dylib, but eventually gave the same error.
For me, switching to libRblas.0.dylib seems to solve the problem, no
more LAPACK errors. Is this a permanent solution? Will switching BLAS
break anything in the Accelerate framework?
Dept. CSSE and NICTA
The University of Melbourne
Parkville 3010, Victoria, Australia
email: gabraham at csse.unimelb.edu.au
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