Can I use ATLAS for the blas/lapack library

[Satish Balay]

You can specify with the option '--with-blas-lapack-dir=PATH' and
configure will check if it can find comaptible libraries [wrt the
compilers used with configure]

However - unless you have a specific need for it [i.e make performance
measurements for publishing] - its ok to just use regular blas/lapack.
We recommend doing all the development with a debug build of PETSc
libraries anyway.. [which is the default for configure]

Satish


On Fri, 12 Jan 2007, Barry Smith wrote:

> 
>   Ben,
> 
>   Please send the configure.log to petsc-maint at mcs.anl.gov
> It is suppose to work with the ATLAS libraries, but they 
> are often temperamental.
> 
>    Barry
> 
> On Sat, 13 Jan 2007, Ben Tay wrote:
> 
> > Hi,
> > 
> > I've ATLAS on my server. Can I use it for the blas/lapack library?
> > 
> > I tried to specify the directory and also the the library files but the
> > PETSc configuration keep saying it's not valid.
> > 
> > The library files are
> > 
> > libatlas.a  libcblas.a  libf77blas.a  liblapack.a  libptcblas.a
> > libptf77blas.a  libtstatlas.a
> > 
> > Which one should I specify?
> > 
> > Lastly, have other users post any comments about using ATLAS?
> > 
> > Thank you!
> > 
> 
>