On 14 March 2012 02:42, Matthew Hobbs wrote:
> Hi,
>
> I want to be able to use an external BLAS library with some Fortran programs we are using. I am using a rhel5 system with two versions of gfortran available:
>
> 1) GNU Fortran (GCC) 4.1.2 20080704 (Red Hat 4.1.2-52) - this does not have the "-fexternal-blas" option so am I right to think that with this version it is not possible to use an external blas library (provided by e.g. atlas)?
>
> 2) GNU Fortran (GCC) 4.4.4 20100726 (Red Hat 4.4.4-13) ("gfortran44") - this has the "-fexternal-blas" option but unfortunately I cannot find any RHEL5 package that provides an external BLAS library that can be used with this version (correct me if I'm wrong). I have tried installing netlib blas, atlas, goto2 from source to get something that will work with gfortran44 but have been unsuccessful.
>
> Please can someone give me some guidance?
You should be able to get the source code for atlas and build it
yourself with gfortran44, installing it to a different location (e.g.
/usr/local or /opt)
