Downloading the software and checking for known errors

The main ATLAS homepage is at:

   http://math-atlas.sourceforge.net/

The software link off of this page allows for downloading the tarfile. The explicit download link is:

   https://sourceforge.net/project/showfiles.php?group_id=23725

Once you have obtained the tarfile, you untar it in the directory where you want to keep the ATLAS source directory. The tarfile will create a subdirectory called ATLAS, which you may want to rename to make less generic. For instance, assuming I have saved the tarfile to /home/whaley/dload, and want to put the source in /home/whaley/numerics, I could create ATLAS's source directory (SRCdir) with the following commands:

   cd ~/numerics
   bunzip2 -c ~/dload/atlas3.10.3.tar.bz2 | tar xfm -
   mv ATLAS ATLAS3.10.3

Before doing anything else, scope the ATLAS errata file for known errors/problems that you should fix/be aware of before installation:

   http://math-atlas.sourceforge.net/errata.html

This file contains not only all bugs found, but also all kinds of platform-specific installation and tuning help.