[R] libblas.so.3

[Uwe Ligges]

Francisco J Molina wrote:
> I am using linux rehat 9
> When I try to run R I get
> 
> usr/lib/R/bin/R.bin: error while loading shared libraries: libblas.so.3: cannot open shared object file: No such file or directory
> 
> ( because I removed it )
> 
> I thought of compiling R from source but I have read:
> 
> "R currently uses only level 1 blas and the most significant atlas
> optimizations are for level 3 (and level 2 to some extent). 
> The problem with using ATLAS is that its installation process does
> not build the shared libraries by default and the whole build process is
> rather complicated."
> 
> This is from a 3 years old message but I guess that the state of the art now
> is similar.

You can specify --with-blas during the configuration step and don't need 
to remove any BLAS libraries. See, e.g., Appendix A.2.2 of the "R 
Installation and Administration" manual.

Uwe Ligges


> Uwe Ligges writes:
>  > Francisco J Molina wrote:
>  > 
>  > > I am using a Pentium 4 and R 1.7.1
>  > > 
>  > > I removed libblas.so.3 to make sure that my programs are using ATLAS (
>  > > maching dependent implementation of BLAS ).
>  > > 
>  > > R is not working. Any suggestion?
>  > 
>  > First suggestion: Please tell us some details, in particular why you 
>  > think R is not working. Error message etc. (fails the configure, the 
>  > make or running R?) ...
>  > 
>  > The OS might be useful as well, we can only guess you are on a Unix-like 
>  > platform.
>  > 
>  > Uwe Ligges
>  >
> 
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