ATLAS stands for Automatically Tuned Linear Algebra Software and is a complete BLAS API for both C and Fortran77. It can optionally be used by any project that requires BLAS. It also provides a very small subset of the LAPACK API.

To view the available version of ATLAS, run:

ATLAS 3.8 provides a static (libatlas.a) and a shared (libatlas.so) library. In ATLAS 3.10, the shared library build has changed. There are now separate libraries for serial (libsatlas.so) and threaded (libtatlas.so) libraries.