ATLAS (Automatically Tuned Linear Algebra Software) is an ongoing research effort on applying empirical techniques in order to provide performance. At present it provides C and Fortran 77 interfaces to a portably efficient BLAS implementation, as well as a few routines from LAPACK.
To see what versions of ATLAS are available type
module avail atlas
To see what other modules are needed, what commands are available and how to get additional help type
module help atlas
To use ATLAS, include a command like this in your batch script or interactive session to load the atlas module:
module load atlas
Be sure you also load any other modules needed, as listed by the
module help atlas command.
Compile your code with a command like
gcc source.c -o executable-name -L$ATLAS/lib -l atlas
Run the executable with